HP Compaq dx2100 MT Series Service & Reference Manual Download Page 3

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Service Reference Guide

HP Compaq dx2100 MT Business PC

1st Edition

Document Part Number: 404569-001

November 2005

Summary of Contents for Compaq dx2100 MT Series

Page 1: ... provides information on the removal and replacement of all parts as well as information on troubleshooting Desktop Management setup utilities ATA drives safety routine care connector pin assignments POST error messages and diagnostic indicator lights Document Part Number 404569 001 ...

Page 2: ......

Page 3: ...Service Reference Guide HP Compaq dx2100 MT Business PC 1st Edition Document Part Number 404569 001 November 2005 ...

Page 4: ...al warranty HP shall not be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company ÅWARNING Text set off in this manner indicates that failure to follow dir...

Page 5: ...he CMOS 2 12 3 Desktop Management 3 1 Initial Configuration and Deployment 3 1 3 2 ROM Flash 3 1 3 2 1 FailSafe Boot Block ROM 3 1 3 2 2 Dual State Power Button 3 2 3 2 3 Power Management 3 2 3 2 4 World Wide Web Site 3 3 3 3 Security 3 3 3 3 1 Password Security 3 3 3 3 2 Establishing a Supervisor Password Using Computer Setup 3 3 3 3 3 Establishing a User Password Using Computer Setup 3 3 3 3 4 S...

Page 6: ...e Computer Case 5 4 5 3 3 Cleaning the Keyboard 5 5 5 3 4 Cleaning the Monitor 5 5 5 3 5 Cleaning the Mouse 5 5 5 4 Service Considerations 5 6 5 4 1 Power Supply Fan 5 6 5 4 2 Tools and Software Requirements 5 6 5 4 3 Screws 5 6 5 4 4 Cables and Connectors 5 7 5 4 5 Hard Drives 5 7 5 4 6 Lithium Coin Cell Battery 5 7 6 Removal and Replacement Procedures Microtower MT Chassis 6 1 Preparation for Di...

Page 7: ... 17 6 12Heatsink 6 18 6 13Processor 6 19 6 14System Board 6 21 6 15Battery 6 22 6 15 1Type 1 Battery Holder 6 23 6 15 2Type 2 Battery Holder 6 24 6 15 3Type 3 Battery Holder 6 25 6 16Power Supply 6 26 A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E Memory Index ...

Page 8: ...vi 404569 001 Service Reference Guide dx2100 MT Contents ...

Page 9: ...ically installed This takes approximately 10 minutes depending on the system hardware configuration Read and follow the instructions that appear on the screen to complete the installation During this process do not turn off your computer unless you are directed to do so 1 1 1 Installing or Upgrading Device Drivers To install optional hardware devices after the OS installation is completed you must...

Page 10: ...icrosoft Windows XP Home or Windows XP Professional operating system is preinstalled on the computer and will be configured automatically the first time the computer is turned on All other software is user installed Certain drivers and utilities are available only in selected languages You can obtain the latest version of these files in English and selected other languages in one of these ways HP ...

Page 11: ...rds and other security features Establish and manage energy saving timeouts All features identified in this chapter may not be available on all HP products 2 1 Power On Self Test POST POST is a series of diagnostic tests that runs automatically when the system is turned on POST checks the following items to ensure that the computer system is functioning properly Keyboard Memory modules Diskette dr...

Page 12: ...parallel ports audio or embedded NIC so that they cannot be used until they are unsecured Enable or disable removable media boot ability Solve system configuration errors detected but not automatically fixed during the Power On Self Test POST Execute self tests on a specified IDE ATA hard drive when supported by the drive 2 2 1 Using Computer Setup F10 Utilities Computer Setup can be accessed only...

Page 13: ...select Save and Exit Setup If you have made changes that you do not want applied select Exit Without Saving To reset to factory settings select Load Optimized Defaults This option will restore the original factory system defaults You must still select Save and Exit Setup after resetting the defaults ÄCAUTION Do NOT turn the computer power OFF while the ROM is saving your F10 Computer Setup changes...

Page 14: ...D system serial number and asset tag number Standard CMOS Features Date mm dd yy Allows you to set system date Time hh mm ss Allows you to set system time PATA Controller Disables enables PATA controller PATA Ch 0 Master PATA Ch 0 Slave For each allows you to detect IDE HDD size and head on selected channel set IDE on selected channel to None Auto Manual set access mode on selected channel to CHS ...

Page 15: ...Target Disk SMART SMART Status Check SMART Short Self Test Target Disk Estimated Test Time Start Test SMART Extended Self Test Target Disk Estimated Test Time Start Test SATA Controller Allows you to set SATA controller to Disabled disables SATA Controller Combined Mode enables 1 PATA and 1 SATA channel Enhanced Mode enables 1 PATA and 2 SATA channels PATA IDE Mode Allows you to determine if PATA ...

Page 16: ...nder Head Precomp Landing Zone Sector Run SMART HDD status check and self test for selected channel SMART Status Check Target Disk SMART SMART Status Check SMART Short Self Test Target Disk Estimated Test Time Start Test SMART Extended Self Test Target Disk Estimated Test Time Start Test Floppy Controller Disables enables the floppy disc controller Drive A Allows you to set Drive A to None or 1 44...

Page 17: ...The first drive in the order has priority in the boot sequence and is recognized as drive C if any devices are attached Optical Drive Boot Priority Allows you to specify the order in which attached optical drives including USB ODD are checked for a bootable operating system image Network Boot Priority Allows you to specify the order in which network devices including UP NIC cards are checked for a...

Page 18: ...ode MPS Version Control for OS Allows you to set the MPS table version to 1 1 1 4 OS Select for DRAM 64MB Allows you to select Non OS2 or OS2 Select OS2 only if running an OS2 operating system with greater than 64MB of RAM on the system BIOS Write Protection Disables enables BIOS upgrading Advanced Chipset Features PCI Express Root Port Func Allows you to set PCI Express Port 1 to Auto Enabled Dis...

Page 19: ...e onboard LAN chip Onboard Serial Port 1 Allows you to select a setting for the onboard serial port Disabled 3F8 IRQ4 2F8 IRQ3 3E8 IRQ4 2E8 IRQ3 Onboard Parallel Port Allows you to select a setting for the onboard parallel port Disabled 378 IRQ7 278 IRQ5 3BC IRQ7 Parallel Port Mode Allows you to select parallel port mode SPP EPP ECP ECP EPP ECP Mode Use DMA If Parallel Port Mode is set to ECP or E...

Page 20: ...ime hh mm ss Alarm If Resume by Alarm is enabled allows you to select what time the RTC alarm will resume PnP PCI Configurations Reset Configuration Data Disables enables automatic reconfiguration The default is Disabled Select Enabled to reset Extended System Configuration Data ESCD when you exit Setup if you have installed a new add on and the system reconfiguration has caused such a serious con...

Page 21: ...C AT bus specification PCI ISA PnP for devices compliant with the Plug and Play standard whether designed for PCI or ISA bus architecture Maximum Payload Size Allows you to set TLP payload size for the PCI Express Devices to in bytes 128 256 512 1024 2048 4096 PC Health Status CPU Temperature view only CPU Fan Speed view only System Fan Speed view only SYS Fan Fault Check Disables enables detectio...

Page 22: ... the diskette or device for possible future use 2 3 1 Backing up the CMOS 1 Make sure the computer to be backed up is turned on Connect the removable storage to the computer 2 Boot to DOS 3 Type N folder BIOS exe SAVE ABC001 where N is the drive letter of the removable storage to save the CMOS setting to the removable storage device 2 3 2 Restoring the CMOS 1 Make sure the target computer is turne...

Page 23: ...ROM read only memory By establishing a supervisor password in the Computer Setup F10 utility you can protect the ROM from being unintentionally updated or overwritten This is important to ensure the operating integrity of the computer Should you need or want to upgrade the BIOS you may download the latest BIOS images from the HP driver and support page http www hp com support ÄCAUTION For maximum ...

Page 24: ...n the Power Button section select the desired power button setting After configuring the power button to function as a suspend button press the power button to put the system in a very low power state suspend Press the button again to quickly bring the system out of suspend to full power status To completely turn off all power to the system press and hold the power button for four seconds ÄCAUTION...

Page 25: ...ork wide setup password can be established to enable the system administrator to log in to all network systems to perform maintenance without having to know the power on password even if one has been established 3 3 2 Establishing a Supervisor Password Using Computer Setup Establishing a supervisor password through Computer Setup prevents reconfiguration of the computer use of the Computer Setup F...

Page 26: ... prompted to enter it each time you run Computer Setup 1 Turn on or restart the computer If you are in Windows click Start Shut Down Restart 2 As soon as the computer is turned on press and hold the F10 key until you enter Computer Setup Press Enter to bypass the title screen if necessary If you do not press the F10 key at the appropriate time you must turn the computer off then on again and press...

Page 27: ...ing the Security options in Computer Setup Deleting a User or Supervisor Password 1 Turn on or restart the computer If you are in Windows click Start Shut Down Restart To delete the supervisor password run Computer Setup 2 To delete the user password go to step 3 To delete the supervisor password as soon as the computer is turned on press and hold the F10 key until you enter Computer Setup Press E...

Page 28: ...onds Close and restart the computer 3 3 4 Surge Tolerant Power Supply An integrated surge tolerant power supply provides greater reliability when the computer is hit with an unpredictable power surge This power supply is rated to withstand a power surge of up to 2000 volts without incurring any system downtime or data loss National Keyboard Delimiter Characters Arabic Greek Russian Belgian Hebrew ...

Page 29: ...er 4 1 SATA Hard Drives When attaching the SATA cable to the system board always connect the primary hard drive to SATA 0 Serial ATA Hard Drive Characteristics Number of pins conductors in data cable 7 7 Number of pins in power cable 15 Maximum data cable length 39 37 in 100 cm Data interface voltage differential 400 700 mV Drive voltages 3 3 V 5V 12 V Jumpers for configuring drive N A Data transf...

Page 30: ... a single drive As shown in the table each cable has 3 grounds and 4 transmit receive pins 4 2 2 SATA Power Cable Pin Number Usage Device Plug Host Plug P1 Ground Ground Ground P2 A Transmit data Receive data P3 A Transmit data Receive data P4 Ground Ground Ground P5 B Receive data Transmit data P6 B Receive data Transmit data P7 Ground Ground Ground P2 and P3 differential signal pair P5 and P6 di...

Page 31: ... a single connector The channel can have up to two devices attached to it All drives are connected to the channel using an industry standard 80 conductor cable The industry standard 1 44 MB diskette drive has its own separate channel and is not included as a part of the maximum four ATA drives Pin Signal Pin Signal Pin Signal 1 2 3 4 5 Reset Ground DD7 DD8 DD6 15 16 17 18 19 DD1 DD14 DD0 DD15 Grou...

Page 32: ...s The Self Monitoring Analysis and Recording Technology SMART ATA drives for the HP Personal Computers have built in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count spin retry count and calibration retry count If the dri...

Page 33: ...BIOS Setting Combined IDE controller PATA Controller in Legacy Mode Device 0 is accessible as Device 0 of PATA controller s Primary Channel Device 1 is accessible as Device 1of PATA controller s Primary Channel SATA Controller in Native Mode SATA 0 is accessible as Device 0 of SATA controller s Primary Channel SATA 1 is accessible as Device 0 of SATA controller s Secondary Channel SATA 2 is access...

Page 34: ... is not supported by many legacy operating systems Addresses are assigned by PCI Plug n Play BIOS and the IRQ is shared with multiple controllers Base Address Registers for the Command and Control Block are found in the PCI Configuration Space Offset 10h Primary Command base address Offset 14h Primary Control base address Offset 18h Secondary Command base address Offset 1Ch Secondary Control base ...

Page 35: ...Adherence to the procedures and precautions described in this chapter is essential for proper service Ä CAUTION When the computer is plugged into an AC power source voltage is always applied to the system board You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage 5 1 Chassis Designations 5 1 1 Microtower MT ...

Page 36: ...egrade a product 5 2 2 Preventing Electrostatic Damage to Equipment Many electronic components are sensitive to ESD Circuitry design and structure determine the degree of sensitivity The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories To avoid hand contact transport products in static safe containers such as tubes bags or boxes P...

Page 37: ...k surface and properly grounded tools and equipment Use static dissipative mats foot straps or air ionizers to give added protection Handle electrostatic sensitive components parts and assemblies by the case or PCB laminate Handle them only at static free work areas Turn off power and input signals before inserting and removing connectors or test equipment Use fixtures made of static safe material...

Page 38: ...g the computer before cleaning the keyboard mouse or air vents 5 Disconnect the keyboard before cleaning it 6 Wear safety glasses equipped with side shields when cleaning the keyboard 5 3 2 Cleaning the Computer Case Follow all safety precautions in Section 5 3 1 General Cleaning Safety Precautions before cleaning the computer To clean the computer case follow the procedures described below To rem...

Page 39: ...outlets Ä CAUTION Never remove a wide leveled key like the space bar from the keyboard If these keys are improperly removed or installed the keyboard may not function properly Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out Be careful not to wipe away lubricants necessary for proper key functions Use tweezers to remove any fibers or dirt in confined a...

Page 40: ...the computer you need the following Torx T 15 screwdriver Compaq screwdriver with bits PN 161946 001 Torx T 15 screwdriver with small diameter shank for certain front bezel removal Flat bladed screwdriver may sometimes be used in place of the Torx screwdriver Diagnostics software Compaq tamper resistant T 15 wrench Smart Cover FailSafe Key PN 166527 001 or Compaq tamper resistant bits Smart Cover ...

Page 41: ...their protective packaging until they are actually mounted in the CPU Avoid dropping drives from any height onto any surface If you are inserting or removing a hard drive turn off the computer Do not remove a hard drive while the computer is on or in standby mode Before handling a drive ensure that you are discharged of static electricity While handling a drive avoid touching the connector For mor...

Page 42: ...5 8 404569 001 Service Reference Guide dx2100 MT Identifying the Chassis Routine Care and Disassembly Preparation ...

Page 43: ...computer 4 Turn off the computer and any peripheral devices that are connected to it Ä CAUTION Turn off the computer before disconnecting any cables Ä CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet In some systems the cooling fan is on even when the computer is in the Standby or Suspend modes The powe...

Page 44: ... the computer access panel ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet 2 Disconnect the power cord from the computer and from the power source 1 3 Remove the screw that secures the access panel to the computer chassis 2 4 Slide the access panel back about 10 mm 3 8 inch then lift it away from and off the unit 3 To replace the access pan...

Page 45: ...n for Disassembly 2 Remove the access panel Section 6 2 Access Panel 3 Press down on the three tabs on the left side of the bezel so they release from the chassis The bezel will rotate out slightly from left to right 4 Continue to rotate the bezel then push the bezel to the left to release the right latches from the chassis To reinstall the front bezel reverse the removal procedure ...

Page 46: ...assembly 2 Remove the access panel Section 6 3 Front Bezel 3 Remove the front bezel Section 6 3 Front Bezel 6 4 1 5 25 Drive Bezel Blank Press one pair of the retaining tabs on the inside of the large bezel towards the outside of the bezel to release the bezel blank At the same time pull the bezel blank inwards to remove it from the main bezel To install a bezel blank reverse the removal procedure...

Page 47: ...icity by briefly touching a grounded metal object Refer to Chapter 5 for more information ÄCAUTION When handling a memory module be careful not to touch any of the contacts Doing so may damage the module 1 Prepare the computer for disassembly Section 6 1 Preparation for Disassembly 2 Remove the access panel Section 6 2 Access Panel ÅWARNING To reduce risk of personal injury from hot surfaces allow...

Page 48: ... MT Chassis 5 Push the module down into the socket ensuring that the module is fully inserted and properly seated Make sure the latches are in the closed position 3 6 Repeat steps 4 and 5 for any additional modules that you want to install To reassemble the computer reverse the removal procedure ...

Page 49: ...th step 1 To install an expansion card in an existing empty slot go to step 9 1 Prepare the computer for disassembly Section 6 1 Preparation for Disassembly 2 Remove the right access panel Section 6 2 Access Panel 3 Lay the computer down on its side to make it easier to work on 4 Remove the slot cover lock Section 6 6 1 Expansion Slot Cover Lock 5 Disconnect any cables attached to the expansion ca...

Page 50: ...e the expansion card into the expansion socket and press it firmly into place 2 When you install an expansion card make sure you press firmly on the card so that the entire connector seats properly in the expansion card socket 10 Reinstall the slot cover lock and its retaining screw 11 Replace the access panel 12 Connect external cables to the installed card if needed Reconfigure the computer if n...

Page 51: ...ds on these cables Do not bend any cable sharply A sharp bend can break the internal wires Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable Do not rely on components like the drive cage power supply or computer cover to push cables down into the chassis Always position the cables to lay properly by themselves When removing the power supply power cable...

Page 52: ...Optical drive P3 Power Supply 2nd Optical drive P4 Power Supply 2nd SATA Hard drive P6 Power Supply DIskette drive P7 Cable To PCA Designator Diskette drive System board FDD1 Black 1st SATA Hard drive System board SATA 0 Black 2nd SATA Hard drive System board SATA 1 Black ODD Data System board P10 Blue ODD Audio System board CN8 Black Heatsink fan System board P2 Secondary system fan System board ...

Page 53: ...d install the guide screws on a drive ÄCAUTION Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive Failure to do so will result in data loss After replacing the primary hard drive you will need to run the Restore Plus CD to load the Compaq factory installed files 6 8 1 Drive Positions Drive Positions Item Description Item Descriptio...

Page 54: ...wo screws that secure the drive in the drive cage 1 6 Slide the drive out of the drive cage as shown in the illustration below 2 7 After the drive has been removed from the chassis remove the two guide screws from the left side of the drive These screws should be transferred to the new drive To install a drive reverse the removal procedure If you are installing a 5 25 drive for the first time into...

Page 55: ... the drive in the drive cage 1 6 Slide the drive out of the front of the chassis 2 To replace the hard drive 1 Remove the three guide screws from the old drive and transfer them to the new drive 2 Reverse the balance of the removal procedure If you replaced the primary hard drive the restore CD may be used to restore the operating system software drivers and or any software applications that were ...

Page 56: ...a Hard Drive 5 Disconnect the power and data cables from the back the drive 6 Remove the two screws that secure the drive cage adapter in the drivebay 7 Remove the bracket brace 1 from the top of the drive adapter by squeezing inward on both sides 8 Remove the two screws that secure the drive to the side of the drive adapter 2 9 Slide the drive 3 to the rear of the drive adapter about 10 cm 3 8 in...

Page 57: ... access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 1 Preparation for Disassembly 3 Disconnect two attaching cables from the system board the power switch LED cable and the front USB cable 4 Remove the two screws 1 that secure the housing to the chassis and then pull the housing 2 away from the chassis To install the housing ass...

Page 58: ...mbly Section 6 1 Preparation for Disassembly 2 Remove the access panel Section 6 2 Access Panel 3 Remove the front bezel Section 6 3 Front Bezel 4 Disconnect the speaker cable from the system board 5 Remove the two screws that secure the speaker to the inside of the chassis 1 then remove the speaker 2 To install the speaker reverse the removal procedure ...

Page 59: ...repare the computer for disassembly Section 6 1 Preparation for Disassembly 2 Remove the access panel Section 6 2 Access Panel 3 Disconnect the cable that connects the system fan to the system board 4 Remove the four screws that secure the fan to the chassis and remove the fan To install the fan reverse the removal procedures ...

Page 60: ...et it on its side to keep from contaminating the work area with thermal grease When reinstalling an existing heatsink make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor New heatsinks come from the factory with fresh thermal grease already applied Position the heatsink so that fan wiring is closest to the memory modu...

Page 61: ...hese pins are very fragile and handling them could cause irreparable damage Once pins are damaged it may be necessary to replace the system board ÄCAUTION The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections To install a new processor 1 Place the processor in its socket and close the retainer 2 Secure the locking lever I...

Page 62: ...ntrol cable to the system board ÄCAUTION Heatsink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the heatsink on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board After installing a new processor onto the system board always update the system ROM to ensure ...

Page 63: ...ard 6 Remove the heatsink from the system board Section 6 12 Heatsink 7 Remove the 6 screws that secure the system board to the chassis 1 8 Slide the system board towards the front of the chassis 2 then angle the back of the board up to remove it 3 The system board in the computer may look slightly different from the one shown here To install the system board reverse the removal procedure After in...

Page 64: ...se of in fire or water Replace the battery only with the HP Compaq spare designated for this product Ä CAUTION Before replacing the battery it is important to back up the computer CMOS settings When the battery is removed or replaced the CMOS settings will be cleared Refer to the Troubleshooting Guide for information on backing up the CMOS settings N Batteries battery packs and accumulators should...

Page 65: ...r 2 Slide the replacement battery into position positive side up 3 The battery holder automatically secures the battery in the proper position 4 Replace the computer access panel 5 Plug in the computer and turn on power to the computer 6 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 66: ...ery pops up lift it out 1 2 To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up 2 Push the other edge down until the clamp snaps over the other edge of the battery 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using C...

Page 67: ...clip 1 that holds the battery in place then remove the battery 2 2 Insert the new battery and position the clip back in place 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 68: ... be disconnected from the computer and or the AC outlet before opening the computer 1 Prepare the computer for disassembly Section 6 1 Preparation for Disassembly 2 Remove the access panel Section 6 2 Access Panel 3 Disconnect all power cables from the mass storage devices and from the system board 4 Remove the 4 screws 1 that secure the power supply to the chassis 5 Slide the power supply toward ...

Page 69: ...onnectors may not be used on the product being serviced Enhanced Keyboard Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Mouse Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Ethernet RJ 45 Connector and Icon Pin Signal 1 2 3 4 Transmit Data Transmit Data Receive Data Unused 5 6 7 8 Unused Receive Data Unused Unused ...

Page 70: ...cknowledge Busy Paper End 16 17 18 25 Initialize Printer Select IN Signal Ground Serial Interface Powered and Non Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect 12V if powered Receive Data Transmit Data 4 5 6 Data Terminal Ready Signal Ground Data Set Ready 7 8 9 Request to Send Clear to Send Ring Indicator 5V if powered USB Connector and Icon Pin Signal 1 2 3 4 5 VDC Data Data Ground ...

Page 71: ...udio_In_Left 2 Ring Audio_In_Right 3 Shield Ground Line Out Audio Connector and Icon 1 8 miniphone Pin Signal 1 Tip Audio_Out_Left 2 Ring Audio_Out_Right 3 Shield Ground Monitor Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Red Analog Green Analog Blue Analog 6 7 8 Ground Ground Ground 11 12 13 Not used DDC Serial Data Horizontal Sync 4 5 Not used Ground 9 10 5V DC fused Ground 14 15 V...

Page 72: ...nd DIOW Ground 34 35 36 37 38 PDIAG cable detect DA0 DA2 CS1FX CS3FX 11 12 13 14 DD3 DD12 DD2 DD13 25 26 27 28 DIOR Ground IORDY CSEL 39 40 DASP Ground 24 Pin Power Connector Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 6 3 3 V 3 3 V GND 5 V GND 5 V 7 8 9 10 11 12 Aux GND PWROK 5 Vaux 12 V 12 V 3 3 V 13 14 15 16 17 18 3 3 V 12 V GND PSON GND GND R S 19 20 21 22 23 24 GND NI 5 V 5 V 5V GND...

Page 73: ...authorized HP dealer reseller or service provider General Requirements The requirements listed below are applicable to all countries 1 The length of the power cord set must be at least 1 8 m 6 00 feet and a maximum of 3 0 m 9 75 feet 2 All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be used 3 The power ...

Page 74: ...Type HO5VV F 3 conductor 1 0 mm2 conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SJT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration ...

Page 75: ...ror System halts after displaying this message Reseat memory modules Replace memory modules Boot Failure BIOS could not boot from the device This message is usually followed by information about the specific device Reseat the device data and power cables Replace the device data cable Replace the device Replace the system board Invalid Boot Diskette Diskette in drive A not bootable Replace the disk...

Page 76: ...e the system board S M A R T Capable but Command Failed S M A R T Command Failed BIOS unable to send a S M A R T message to the device Backup the data on the hard drive Replace the hard drive S M A R T Status Bad Backup and replace S M A R T Capable and Status Bad S M A R T capable hard drive detects an imminent failure Backup the data on the hard drive then replace the hard drive DMA 1 Error DMA ...

Page 77: ...10 Key to access Computer Setup Select Load Default Settings Save and Exit Change system board jumper on JP2 to pins 2 3 Unlock then flash the system BIOS Reset the jumper to pins 1 2 Lock Replace the system board Timer Error Error found while programming the count register of channel 2 of the 8254 timer Replace the system board Interrupt Controller 1 Error Interrupt Controller 1 Error BIOS POST c...

Page 78: ...en keyboard controller is initialized Reconnect keyboard with computer turned off Check connector for bent or missing pins Ensure that none of the keys are depressed Replace keyboard Replace system board Hard Disk Install Failure Cannot find or initialize the hard drive Check Computer Setup F10 Setup for presence of hard drive Check drive cable connections Replace hard drive Memory Test Failure If...

Page 79: ...Ensure that the computer air vents are not blocked and the chassis cooling fan is running Open hood press power button and see if the chassis fan spins If the fan is not spinning make sure the fan s cable is plugged onto the system board header Ensure the fan is fully properly installed If fan is plugged in but is not spinning then replace chassis fan Replace the chassis fan Warning Processor Fan ...

Page 80: ...ard header Ensure the fan is fully properly seated or installed If fan is plugged in and seated properly but is not spinning then replace processor fan Reseat processor heatsink and verify that the fan assembly is properly attached Contact an authorized reseller or service provider Power LED flashes five times once every second followed by a two second pause LEDs continue until problem is solved 5...

Page 81: ...turns green then Check that the voltage selector located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region Remove the expansion cards one at a time until the LED light on the system board turns on Replace the system board OR Press and hold the power button for less than 4 seconds If the hard drive LED does not turn on green then Check t...

Page 82: ...C 8 404569 001 Service Reference Guide dx2100 MT POST Error Messages ...

Page 83: ... and a single monitor the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter During boot the other monitor connectors are disabled and if the monitor is connected into these ports the monitor will not function You can select which source will be the default VGA source in Computer F10 Setup Press and hold any key If the system beeps then the keyboar...

Page 84: ...et the date and time under Control Panel 2 Replace the RTC battery Computer appears to pause periodically Network driver is loaded and no network connection is established Establish a network connection or use Computer Setup or Microsoft Windows Device Manager to disable the network controller Cursor will not move using the arrow keys on the keypad The Num Lock key may be on Press the Num Lock key...

Page 85: ...ront of the computer are not flashing System unable to power on Press and hold the power button for less than 4 seconds If the hard drive LED turns green then 1 Check that the voltage selector is set to the appropriate voltage 2 Remove the expansion cards one at a time until the 3 3 V_aux light on the system board turns on 3 Replace the system board OR Press and hold the power button for less than...

Page 86: ...LED glows for 4 seconds followed by a one second pause Processor thermal protection activated A fan may be blocked or not turning OR The heatsink fan assembly is not properly attached to the processor 1 Ensure that the computer air vents are not blocked and the cooling fan is running 2 Open hood press the power button and see if the processor fan spins If the processor fan is not spinning make sur...

Page 87: ...Reseat the drive You attempted to hot plug a removable hard drive that has DriveLock security enabled This feature supported on select models only Shut down the computer Insert the drive into the MultiBay if it is not already inserted Turn on the computer Diskette drive cannot write to a diskette Diskette is not formatted Format the diskette Diskette is write protected Use another diskette or remo...

Page 88: ...ove the diskette and press the Spacebar The computer should start up Diskette error has occurred Restart the computer by pressing the power button Cannot Boot to Diskette Diskette is not bootable Replace with a bootable diskette Diskette boot has been disabled in Computer Setup Run Computer Setup and enable diskette boot in Storage Boot Order Removable media boot has been disabled in Computer Setu...

Page 89: ... same cable as the primary drive verify that the jumpers for both drives are set correctly Drive s IDE ATA controller is disabled in Computer Setup Run Computer Setup and enable the Primary and Secondary IDE ATA controllers in Storage Storage Options Drive responds slowly immediately after power up Run Computer Setup and increase the POST Delay in Advanced Power On Options Nonsystem disk NTLDR mis...

Page 90: ...e wrong cable for the drive type Reinstall the second Ultra ATA hard drive using an 80 conductor cable standard on select models Both slow and fast UATA devices are on the same data cable Connect slower UATA devices to a separate data cable connected to the secondary IDE ATA controller Computer will not start Hard drive is damaged Observe the beeps and LED lights on the front of the computer See A...

Page 91: ...rizontal scan rate as the resolution chosen Computer is in standby mode Press the power button to resume from standby mode ÄCAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose your data Monitor cable plugged into the wrong connector If the computer system has both an integrated grap...

Page 92: ...s may not be loaded Install the video drivers included in the upgrade kit Monitor is not capable of displaying requested resolution Change requested resolution The picture is broken up rolls jitters or flashes The monitor connections may be incomplete or the monitor may be incorrectly adjusted 1 Be sure the monitor cable is securely connected to the computer 2 In a two monitor system or if another...

Page 93: ...et the output synchronization of the graphics card 1 Select the monitor s Auto Adjustment option in the monitor s on screen display menu 2 Manually synchronize the Clock and Clock Phase on screen display functions Download SoftPaq SP20930 or SP22333 depending on the monitor to assist with the synchronization NOTE Use the monitor model number when searching for the SoftPaq Certain typed symbols do ...

Page 94: ... From the Control Panel select System 2 On the Hardware tab click the Device Manager button 3 Right click on the CD DVD device and select Properties 4 On the Properties tab make sure Enable digital CD audio for this CD ROM device is checked Headphones or devices connected to the line out connector mute the internal speaker Turn on and use headphones or external speakers if connected or disconnect ...

Page 95: ... If you set digital as the Output Mode the internal speaker and external analog speakers will no longer output audio until you switch back to an auto sense or analog mode If you set analog as the Output Mode external digital speakers will not function until you change the output mode back to an auto sense or digital mode Sound cuts in and out Processor resources are being used by other open applic...

Page 96: ...inter works reload the printer driver If you are on a network you may not have made the connection to the printer Make the proper network connections to the printer Printer may have failed Run printer self test Printer will not turn on The cables may not be connected properly Reconnect all cables Printer prints garbled information The correct printer driver is not installed Install the correct pri...

Page 97: ...eys on the keypad The Num Lock key may be on Press the Num Lock key The Num Lock light should not be on if you want to use the arrow keys The Num Lock key can be disabled or enabled in Computer Setup Mouse does not respond to movement or is too slow Mouse connector is not properly plugged into the back of the computer 1 Shut down the computer using the keyboard 2 Plug the mouse connector into the ...

Page 98: ...e properly and securely connected and that pins in the cable or connector are not bent down Power switch of new external device is not turned on Turn off the computer turn on the external device then turn on the computer to integrate the device with the computer system When the system advised you of changes to the configuration you did not accept them Reboot the computer and follow the instruction...

Page 99: ... two second pause The computer beeps at the same rate and at the same time as the LED flashes Memory is installed incorrectly or is bad 1 Reseat DIMMs 2 Replace DIMMs one at a time to isolate the faulty module 3 Replace third party memory with HP memory 4 Replace the system board Solving Hardware Installation Problems Continued Problem Cause Solution ...

Page 100: ...roperly Network driver is not properly loaded Reinstall network drivers System cannot autosense the network Disable auto sensing capabilities and force the system into the correct operating mode Diagnostics reports a failure The cable is not securely connected Ensure that both ends of the data cable are securely connected The cable is attached to the incorrect connector Ensure that the cable is at...

Page 101: ...source settings for the board Network controller stops working without apparent cause The files containing the network drivers are corrupted Reinstall the network drivers using the Restore Plus CD The cable is not securely connected Ensure that both ends of the cable are securely attached to the correct devices The network controller is defective Replace the NIC or replace the system board if the ...

Page 102: ...eck memory configuration You have run out of memory to run the application Check the application documentation to determine the memory requirements Memory count during POST is wrong The memory modules may not be installed correctly Check that the memory modules have been installed correctly and that proper modules are used Insufficient memory error during operation Too many Terminate and Stay Resi...

Page 103: ...oblems Solving Processor Problems Problem Cause Solution Poor performance is experienced Processor is hot 1 Make sure the airflow to the computer is not blocked 2 Make sure the fans are connected and working properly some fans only operate when needed 3 Make sure the processor heatsink is installed properly ...

Page 104: ...re is not installed Install decoder software Cannot eject compact disc tray load unit Disc not properly seated in the drive 1 Turn off the computer and insert a thin metal rod into the emergency eject hole and push firmly 2 Slowly pull the tray out from the drive until the tray is fully extended then remove the disc CD ROM CD RW DVD ROM or DVD R RW drive cannot read a disc or takes too long to sta...

Page 105: ...t physical drive is not available Change the default drive letter for the Drive Key in Windows XP The computer boots to DOS after making a bootable Drive Key Drive Key is bootable Install the Drive Key after the operating system boots Solving Internet Access Problems Problem Cause Solution Unable to connect to the Internet Internet Service Provider ISP account is not set up properly Verify Interne...

Page 106: ...ect the CAT5 10 100 cable between the cable modem and the computers s RJ 45 connector If the connection is good the PC LED light on the front of the cable DSL modem will be on IP address is not configured properly Contact the ISP for the correct IP address Cookies are corrupted Windows XP 1 Select Start Control Panel 2 Double click Internet Options 3 On the General tab click the Delete Cookies but...

Page 107: ...le click System 3 Click the Hardware tab 4 In the Device Manager area click the Device Manager button 5 Double click Ports COM LPT 6 Right click the COM port your modem uses then click Properties 7 Under Device status verify that the modem is working properly 8 Under Device usage verify the modem is enabled 9 If there are further problems click the Troubleshoot button and follow the on screen inst...

Page 108: ...to wake the computer Power LED glows for three seconds followed by a one second pause and the computer beeps two times 2 Processor thermal protection activated A fan may be blocked or not turning OR The heatsink fan assembly is not properly attached to the processor 1 Ensure that the computer air vents are not blocked and the processor cooling fan is running 2 Open hood press power button and see ...

Page 109: ...em board Power LED flashes seven times once every second followed by a two second pause and the computer beeps seven times 7 System board failure ROM detected failure prior to video Replace the system board Power LED flashes eight times once every second followed by a two second pause and the computer beeps eight times 8 Invalid ROM based on bad checksum 1 Reflash the ROM using a ROMPaq diskette S...

Page 110: ... 3 Replace the system board OR Press and hold the power button for less than 4 seconds If the hard drive LED does not turn on green then 1 Check that the unit is plugged into a working AC outlet 2 Open hood and check that the power button harness is properly connected to the system board 3 Check that both power supply cables are properly connected to the system board 4 Check to see if the LED ligh...

Page 111: ...em board with up to 4GB of memory configured in a high performing dual channel mode For proper system operation the computer supports DDR2 SDRAM DIMMs The DIMMs must be industry standard 240 pin unbuffered PC2 4200 533 MHz compliant 1 8 volt DDR2 SDRAM DIMMs The DDR2 SDRAM DIMMs must also support CAS latency 4 CL 4 for PC2 4200 533 MHz contain the mandatory JEDEC SPD information In addition the co...

Page 112: ...el only The system will operate in dual channel Asymmetrical mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B The system will operate in a higher performing dual channel Interleaved mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B The technology ...

Page 113: ...omputer 5 4 keyboard 5 5 monitor 5 5 mouse 5 5 clearing password 3 6 cloning tools software 3 1 CMOS Setup Standard 2 4 2 5 2 6 2 7 Compaq software See software computer cleaning 5 4 pauses D 2 Computer Setup heading system information 2 4 Standard CMOS Setup 2 4 2 5 2 6 2 7 utilities 2 2 configuring power button 3 2 connector pin assignments A 1 to A 4 country specific power cord set requirements...

Page 114: ...ettings D 7 K keyboard cleaning 5 5 pin assignments A 1 keyboard delimiter characters national 3 6 L LEDs blinking PS 2 keyboard C 5 line in audio pin assignments A 3 line out audio pin assignments A 3 M memory removal and replacement 6 5 microphone pin assignments A 2 monitor blank screen D 9 blurry video D 10 checking connections D 1 cleaning 5 5 dim characters D 10 pin assignments A 3 mouse cle...

Page 115: ...le pinouts 4 2 power cable pinouts 4 2 saving energy 3 2 screws correct size 5 6 SDRAM synchronous dynamic random access memory E 1 serial interface pin assignments A 2 service considerations 5 6 setting setup password 3 3 3 4 timeouts 3 2 setup initial 3 1 software 1 2 windows 1 1 setup password changing 3 4 deleting 3 5 entering 3 4 setting 3 3 software Computer Setup Utilities 2 1 FailSafe Boot...

Page 116: ...Index 4 404569 001 Sservice Reference Guide dx2100 MT Index ...

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HP Compaq dx2100 MT Series, Service & Reference Manual

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