Acer Aspire T300 User Manual Download

Page: 1 / 74

Aspire T300/Power ST

Service Guide

PRINTED IN TAIWAN

Service guide files and updates are available

on the AIPG/CSD web; for more information,

please refer to

http://csd.acer.com.tw

Summary of Contents for Aspire T300

Page 1: ...Aspire T300 Power ST Service Guide PRINTED IN TAIWAN Service guide files and updates are available on the AIPG CSD web for more information please refer to http csd acer com tw ...

Page 2: ...II Revision History Please refer to the table below for the updates made on Aspire T300 Power ST service guide Date Chapter Updates ...

Page 3: ...pect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor or its dealer assumes the entire cost of all necessary servicing repair and an...

Page 4: ... bits and pieces of additional information related to the current topic WARNING Alerts you to any damage that might result from doing or not doing specific actions CAUTION Gives precautionary measures to avoid possible hardware or software problems IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures ...

Page 5: ... NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 Please note WHEN ORDERING FRU PARTS that you should check the most up to date information available on your regional web or channel If for whatever reason a part number change is made it will not be noted in the printe...

Page 6: ...VI ...

Page 7: ...he Aspire T300 Power ST supports Intel Pentium 4 Northwood based micro ATX IBM PC AT compatible system with PCI AGP bus NOTE Aspire T300 Power ST supports Intel s HT Hyper Threading Technology System Specifications Chapter 1 ...

Page 8: ... AVL list for compatibility Graphics T On die VGA T 1 VGA port AGP PCI T One AGP 4X 1 5V slot T Three PCI 2 2 5V slots FDD T One FDD slot supports 1 44MB 3 mode 3 5 devices IDE T Slot Type 40 pin IDE slot T Slot Quantity 2 T Transfer rate support T PIO Mode 0 1 2 3 4 T Ultra DMA 66 100 133 T Storage Type support T HDD CD ROM CD RW DVD T Zip 250 T ATA 100 transfer rate Audio T Embedded RealTek 201A...

Page 9: ...y T On board 4 rear T Connector Pin 2 front T Transfer Rate T USB 2 0 1 1 BIOS T 4MB Award BIOS with Plug and Play BIOS T ACPI SMBIOS 2 3 Green and Boot Block T Provides DMI 2 0 WFM 2 0 WOL WOR chassis intrusion and SM Bus for system management Others T Suspend to RAM Disk T PC2001 Compliant T Support PS2 Keyboard Mouse and USB Keyboard Mouse wake up function ...

Page 10: ...l The computer s front panel consists of the following Label Description 1 CD ROM DVD ROM CD RW Drive 2 FDD Drive 3 Power Button 4 Power LED 5 HDD LED 6 Speaker Headphone jack 7 Microphone in jack 8 USB ports 1 2 3 4 5 6 7 8 ...

Page 11: ...Chapter 1 5 Label Description 1 CD ROM DVD ROM CD RW Drive 2 FDD Drive 3 Power Button 4 Power LED 5 HDD LED 6 Speaker Headphone jack 7 Microphone in jack 8 USB ports 1 2 3 4 5 6 7 8 ...

Page 12: ... Description 1 Power Socket 2 Voltage Setting Switch only available in some area 3 PS 2 Keyboard Port 4 COM1 Serial Port 5 VGA Port 6 Speaker Headphone Jack 7 Line in Jack 8 Microphone in Jack 9 USB Ports 10 Extension Card Slots 11 Ventilation Slot 12 PS 2 Mouse Port 13 Printer Port 14 Game Port 15 LAN Port ...

Page 13: ...PUs CPUFAN1 Cooling fan for CPU DIM1 DIM2 Two 184 pin DDR SDRAM FDD1 Floppy disk drive connector IDE1 Primary IDE channel IDE2 Secondary IDE channel IR1 Infrared cable header J5 SPIDF out header JP1 Clear CMOS jumper Mainboard Components CDIN2 CDIN1 AUDIO1 WOM1 WOL1 CNR1 PCI3 PCI2 PCI1 SPEAKER1 IR1 PANEL1 JP1 BAT1 JP3 USB3 USB2 CASFAN1 FDD1 IDE2 IDE1 ATX2 CPUFAN1 DDR1 DDR2 DIM1 WOM1 WOL1 CASFAN1 J...

Page 14: ...ase front panel awitches and LED indicators PCI1 PCI3 Three 32 bit add on card slots PWRFAN1 Case fan connector 2 SPEAKER1 Speaker connector USB2 Front panel USB headers USB3 Front panel USB headers WOL1 Wake On LAN wakeup connector WOM1 Wake On Modem wakeup connector Label Description ...

Page 15: ...ed by the system without setting any jumper BIOS Item Specification BIOS code programmer Award BIOS version v6 0 BIOS ROM type Flash ROM BIOS ROM size 2MB BIOS ROM package 32 pin DIP package Support protocol PCI 2 2 APM1 2 DMI 2 00 1 E IDE ACPI 1 0 ESCD 1 03 ANSI ATA 3 0 PnP 1a Bootable CD ROM 1 0 ATAPI Boot from CD ROM feature Yes Support to LS 120 drive No Support to BIOS boot block feature No B...

Page 16: ...ature Yes Memory module combinations You can install memory modules in any combination as long as they match the above specifications Memory Combinations Slot Memory Module Total Memory Slot 1 64 128 256 512MB 1G 64MB 1G Slot 2 64 128 256 512MB 1G 64MB 1G Maximum System Memory Supported 64MB 2G Cache Memory Item Specification First Level Cache Configurations Cache function control Enable Disable b...

Page 17: ...024 85 91 2 157 5 1600x1200 60 76 2 156 0 1600x1200 85 106 2 229 5 Audio Interface Item Specification Audio controller SiS 651 Audio controller resident bus AC 97 Audio function control Enable disable by BIOS Setup Mono or stereo Stereo Resolution 20 bits Compatibility Sound Blaster Pro 16 compatible Mixed digital and analog high performance chip Enhanced stereo full duplex operation High performa...

Page 18: ...ation Parallel port controller SiS 962 Parallel port controller resident bus ISA bus Number of parallel ports 1 Support ECP EPP SPP Bi directional ECP EPP Connector type 25 pin D type female connector Parallel port function control Enable disable by BIOS Setup Optional ECP DMA channel in BIOS Setup DMA channel 1 DMA channel 3 Optional parallel port I O address via BIOS Setup 378h 278h Optional par...

Page 19: ...s PCI ISA Video Buffer Memory 0C0000 0C7FFF 32KBytes Video BIOS Memory 0C8000 0DFFFF 96Kbytes ISA Card BIOS Buffer Memory 0E0000 0EFFFF 64Kbytes BIOS Extension Memory Setup and Post Memory PCI Development BIOS 0F0000 0FFFFF 64Kbytes System BIOS Memory 100000 UPPER LIMIT Main Memory UPPER LIMIT 4GBytes PCI Memory PCI INTx and IDSEL Assignment Map PCI INTx PCI Devices Device IDSEL ADxx INTA ADIMM sl...

Page 20: ...rinter Port 2 Serial Asynchronous Port 2 Parallel Printer Port 1 Floppy Disk Controller Secondary IDE Primary IDE Serial Asynchronous Port 1 Configuration Address Register Configuration Data Register Parallel Printer Port 1 IRQ Assignment Map IRQx System Devices Add On Card Devices IRQ0 Timer N IRQ1 Keyboard N IRQ2 Cascade Interrupt Control N IRQ3 Serial Alternate Reserved IRQ4 Serial Primary Rese...

Page 21: ...S 962 LAN controller SiS 651 HDD controller SiS 651 Keyboard controller SiS 962 Environmental Requirements Item Specifications Temperature Operating 10 35 C Non operating 20 60 C Storage package Humidity Operating 20 to 80 RH Non operating 20 to 80 RH Vibration Operating unpacked 5 16 Hz 0 015 mm 16 250 Hz 0 21 G Non operating packed 5 27 1 Hz 0 6 G 27 1 50 Hz 0 016 mm 50 500 Hz 2 G Mechanical Spe...

Page 22: ...e 50MHz 47MHz to 53MHz 60MHz 57MHz to 63MHz Input Voltage Variation Range 100 120 VRMS 90 132 VRMS 200 240 VRMS 180 264 VRMS Input Current Measuring Range 4A 90 132 VRMS 2A 180 264 VRMS Output Requirements Regulation Current Rating 5V 5 15A 12V 5 3A 12V 10 0 3A 3 3V 4 12A 5Vaux 5 3A ...

Page 23: ... switch button modem ring in keyboard and mouse for APM mode T Resume recovery time 7 10 sec Suspend Mode T Independent power management timer 2 120 minutes time step 10 minutes or pushing external switch button T CPU goes into SMM T CPU asserts STPCLK and goes into the Stop Grant State T LED on the panel turns amber colour T Hard disk drive goes into SLEEP mode for ATA standard interface T Disabl...

Page 24: ...18 Chapter 1 ...

Page 25: ...ation values into the battery backed nonvolatile memory called CMOS RAM This memory area is not part of the system RAM NOTE If you repeatedly receive Run Setup messages the battery may be bad flat In this case the system cannot retain configuration values in CMOS Before you run Setup make sure that you have saved all open files The system reboots immediately after you exit Setup System Utilities C...

Page 26: ...s DEL to enter SETUP appears on the screen press the key of Delete to enter the setup menu NOTE If the message disappears before you respond and you still wish to enter Setup restart the system by turning it OFF and On You may also restart the system by simultaneously pressing Ctrl Alt Delete The Setup Utility main menu then appears ...

Page 27: ... the main menu If you are already in the main menu press again to exit Setup The parameters on the screens show default values These values may not be the same as those in your system The grayed items on the screens have fixed settings and are not user configurable NOTE Due to the application of a new version of BIOS Setup program you may find the BIOS menu is largely different from the former mod...

Page 28: ...elect Product Information from the main menu The Product Information menu contains general data about the system such as the product name serial number BIOS version etc These information is necessary for troubleshooting maybe required when asking for technical support ...

Page 29: ...in board s serial number System BIOS Version Specifies the version of your BIOS utility SMBIOS version The System Management Interface SM BIOS allows you to check your system hardware components without actually opening your system Hardware checking is done via software during start up This parameter specifies the version of the SMBIOS utility installed in your system System BIOS ID Specifies the ...

Page 30: ...onth Jan Feb Dec Day 1 to 30 Year 1980 to 2079 Time Lets you set the time following the hour minute second format Hour 0 to 23 Minute 0 to 59 Second 0 to 59 IDE Primary Channel Master Allows you to configure the hard disk drive connected to the master port of IDE channel 1 To enter the IDE Primary Master setup press Enter The IDE CD ROM is always automatically detected IDE Device Model Number None...

Page 31: ...diskette Disabled Enabled Video This item specifies the type of video card in use The default setting is VGA EGA Since current PCs use VGA only this function is almost useless and may be disregarded in the future VGA EGA CGA40 CGA80 Mono Halt On This parameter enables you to control the system stops in case of Power On Self Test errors POST All Errors No Errors All but Keyboard All but Diskette Al...

Page 32: ... your hard disk drive Press Enter IDE Primary Master Display the type of device installed Auto None Manual Access Mode Selects the HDD access mode Auto Large LBA CHS Capacity Shows the size of your HDD in MB xxxxx MB Cylinder Shows your hard disk s numberof cylinders 0 to 65535 Head Shows your hard disk s number of heads 0 to 255 Precomp Selects the precomp number for old HDD parking 0 to 65535 La...

Page 33: ...s parameter speeds up POST by skipping some items that are normally checked Enabled Disbaled Hard Disk Boot Priority First Second Third Boot Device The items allow you to set the sequence of boot device where BIOS attempts to load the disk operating system Floppy LS120 HDD 0 SCSI CDROM HDD 1 HDD 2 HDD 3 ZIP LAN Disabled Disable this sequence The sequence following the order of HDD Floppy and CD RO...

Page 34: ...ettings 6 8 10 12 15 20 24 and 30 Typematic Delay This item allows you to select the delay between when the key was first pressed and when the acceleration begins Settings 250 500 750 and 1000 Security Option Specifies the type of BIOS password protection that is implemented Setup means that the password prompt appears only when end users try to run Setup System means that a password prompt appear...

Page 35: ...n is used to change the values of the chipset registers These registers control most of the system options in the computer NOTE Change these settings only if you are familiar with the chipset Advanced DRAM Control Press Enter to enter the sub menu and the following screen appears ...

Page 36: ...ired in certain system designs to support loose layouts or slower memory Normal Mode Safe Mode Fast mode Turbo Mode Ultra Mode CAS Latency Setting When synchronous DRAM is installed the number of clock cycles of CAS latency depends on the DRAM timing 2T 2 5T 3T Parameter Description Options Memory Hole at 15M 16M You can reserve this area of system memory for ISA adapter ROM When this area is rese...

Page 37: ... 6MB s If your hard disk performance becomes unstable you may manually try the slower mode Auto mode 1 mode 2 mode 3 and mode 4 Primary Master UltraDMA Primary Salve UltraDMA Secondary Master UltraDMA Secondary Slave UltraDMA These items allow you to set the Ultra DMA 33 66 100 mode supported by the hard disk drive connected to your primary and secondary IDE connectors Auto Disables IDE Burst Mode...

Page 38: ...ction To enable or disable the onboard LAN controller Enabled Disabled Onboard LAN Boot ROM This setting determines whether or not to activate the boot ROM of the onboard LAN chip Enabled Disabled IDE HDD Block Mode Block mode is also called block transfer multiple commpands or multiple sector read write If your IDE hard drive supports block mode most new drives do select Enabled for automatic det...

Page 39: ...Power Management Interface Function If your operating system is ACPI aware such as Windows 98SE 2000 Me select Enabled Enabled Disabled ACPI Suspend Type This item specifies the power saving modes for ACPI function S1 POS The S1 sleep mode is a low power state In this state no system context CPU or chipset is lost and hardware maintains all system context S3 STR The S3 sleep mode is s power down s...

Page 40: ...e length of time specified in this field the hard disk drive will be powered down while all other devices remain active Disabled 1 15 Mins Soft off by PWR BTTN This feature allows users to configure the power button function Instant Off The power button functions as a normal power on off button Delay 4 Sec When you press the power button the computer enters the suspend sleep mode but if the button...

Page 41: ...d By This BIOS can automatically configure all of the boot and Plug and Play compatible devices You can also set it as Manual and go into each of the sub menu to choose specific resources Auto ESCD Manual IRQ Resources The items are adjustable only when Resources Controlled By is set to Manual By pressing Enter to access the sub menu PCI Device Reserved PCI VGA Palette Snoop Disabled Data read or ...

Page 42: ...n is for setting the shutdown temperature level for the processor When the processor reaches the temperature you set the ACPI aware system will be shut down Current System CPU Temperature CPU System fan Vcore ect These items display the current status of all of the mainboard hardware devices components such as CPU voltages temperatures and all fans speeds ...

Page 43: ...Enabled Disabled Spread Spectrum When the motherboard s clock generator pulses the extreme values spikes of the pulses creates EMI Electromagnetic Interference The spread Spectrum function reduces the EMI generated by modulating the pulses so that the spikes of the pulses are reduced to flatter curves If you do not have any EMI problem leave the setting at Disabled for optimal system stability and...

Page 44: ...tings are the default values set by the mainboard manufacturer specifically for optimal performance of the mainboard When you select the item a message as below appears Pressing Y Yes loads the BIOS default values for the most stable system performance ...

Page 45: ...ix characters in length After typing the password press Enter At the next prompt re type your password and press Enter again to confirm the new password After the password entry the screen automatically reverts to the main screen To disable the password press Enter when prompted to enter the password The following screen will display a message confirming that the password has been disabled ...

Page 46: ...er typing the password press Enter At the next prompt re type your password and press Enter again to confirm the new password After the password entry the screen automatically reverts to the main screen To disable User Password press Enter when prompted to enter the password The following screen will display a message confirming that the password has been disabled ...

Page 47: ...u select Save and Exit Setup you will exit the BIOS utility The following dialogue box will appear Select Y Yes to exit Setup Select N No to return to the main menu If you select Exit Without Saving you will discard all the changes you made and exit Setup ...

Page 48: ...42 Chapter 2 ...

Page 49: ...T Wrist grounding strap and conductive mat for preventing electrostatic discharge T Flat bladed screwdriver T Phillips screwdriver may require different size NOTE The screws for the different components vary in size During the disassembly process group the screws with the corresponding components to avoid mismatches when putting back the components Machine Disassembly and Replacement Chapter 3 ...

Page 50: ...on Before You Begin Before proceeding with the disassenbly procedure make sure that you do the following 1 Turn off the power to the system and all peripherals 2 Unplug the AC adapter and all power and signal cables from the system ...

Page 51: ...presentation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing Main Unit Top Cover CD ROM Heatsink Floppy HDD Cage Daughter Board Bracket CPU Daughter Board Floppy HDD Power Supply Modem Card VGA Card Memory Mainboard Front Bezel ...

Page 52: ...turned off the system and all peripherals connected to it Removing the Housing Cover 1 Place the system unit on a flat steady surface 2 Turn the housing back and remove the screws as shown here 3 Slide out the top cover Removing the CD ROM CD RW Drive 1 Disconnect the power cable the ribbon cable and then the CD in cable 2 Remove the screws as shown here 3 Slide out the CD ROM drive ...

Page 53: ... Untie the magnetic ring 3 Release the latches as shown here 4 Remove the Front Bezel Removing the HDD Floppy Cage 1 Disconnect the power connector to the floppy and then the ribbon cable 2 Disconnect the power connector to the HDD and then the ribbon cable 3 Remove the screw as shown here ...

Page 54: ... cage to 90 degrees and then remove the cage Detaching the Daughter Board 1 Remove the screw as shown here 2 Remove the daughter board bracket 3 Remove the two screws as shown here 4 Detach the daughter board from the bracket ...

Page 55: ...rovides troubleshooting information for the Acer T300 Power ST T Power On Self Test POST T Index of Error Messages T Index of Error Codes and Error Beeps T Index of Error Symptoms T Undetermined Problems Chapter 4 Troubleshooting ...

Page 56: ...system if the error is fatal The main components on the main board that must be diagnosed and or initialized by POST to ensure system functionality are as follows T Microprocessor with built in numeric co processor and cache memory subsystem T Direct Memory Access DMA controller T Interrupt system T Three programmable timers T ROM subsystem T RAM subsystem T RTC RAM subsystem and real time clock c...

Page 57: ...et 7 or below C3h Expand compressed BIOS code to DRAM C5h Call chipset hook to copy BIOS back to E000 F000 shadow RAM 0h1 Expand the Xgroup codes locating in physical address 1000 0 02h Reserved 03h Initial Superio_Early_Init switch 04h Reserved 05h 1 Blank out screen 2 Clear CMOS error flag 06h Reserved 07h 1 Clear 8042 interface 2 Initialize 8042 self test 08h 1 Test special keyboard controller ...

Page 58: ... SPURIOUS_INT_HDLR S W inter rupts to SPURIOUS_soft_HDLR 1Ch Reserved 1Dh Initial EARLY_PM_INIT switch 1Eh Reserved 1Fh Load keyboard matrix notebook platform 20h Reserved 21h HPM Initialization notebook platform 22h Reserved 23h 1 Check validity of RTC value e g a value of 5Ah is an invalid value for RTC minute 2 Load CMOS settings into BIOS stack If Smos check sum fails use default value instead...

Page 59: ... 32h Reserved 33h Reset keyboard if Early_Reset_KB is defined e g Winbond 977 series Super I O chips See also POST 63h 34h Reserved 35h Test DMA Channel 0 36h Reserved 37h Test DMA Channel 1 38h Reserved 39h Test DMA page registers 3Ah Reserved 3Bh Reserved 3Ch Test 8254 3Dh Reserved 3Eh Test 8259 interrupt mask bits for channel 1 3Fh Reserved 40h Test 8259 interrupt mask bits for channel 2 41h Re...

Page 60: ...ocessors multi processor platform 56h Reserved 57h 1 Display PnP logo 2 Early ISA PnP initialization Assign CSN to every ISA PnP device 58h Reserved 59h Initialize the combined Trend Anti Virus code 5Ah Reserved 5Bh Optional Feature Show message for entering AWDFLASH EXE from FDD optional 5Ch Reserved 5Dh 1 Initialize Init_Onboard_Super_IO 2 Initialize Init_Onboard_AUDIO 5Eh Reserved 5Fh Reserved ...

Page 61: ...if AWDFLASH EXE is found in floppy drive ALT F2 is prrssed 77h Detect serial ports parallel ports 78h Reserved 79h Reserved 7Ah Detect install co processor 7Bh Reserved 7Ch Init HDD write protect 7Dh Reserved 7Eh Reserved 7Fh Switch back to text mode if full screen logo is supported If errors occur report errors wait for keys If no errors occur or F1 key is pressed to continue Clear EPA or customi...

Page 62: ...rved 91h Reserved 92h Reserved 93h Read HDD boot sector information for Trend Anti Virus code 94h 1 Enable L2 cache 2 Program Daylight Saving 3 Program boot up speed 4 Chipset final initialization 5 Power management final initialization 6 Clear screen dispaly summary table 7 Program K6 write allocation 8 Program P6 class write combining 95h Update keyboard LED typematic rate 96h 1 Build MP table 2...

Page 63: ... in BIOS Setup is correct 2 Enter BIOS Setup and load the default settings 3 RTC battery 4 System board System Management Memory Bad Memory Error at MMMM SSSS OOOOh 1 Insert the memory modules in the DIMM sockets properly then reboot the system 2 Memory module 3 System board RAM Parity Error 1 Enter BIOS Setup to disable parity check 2 Memory module 3 System board PS 2 Keyboard Error or Keyboard N...

Page 64: ...all adapter cards that are NOT factory installed then reboot the system PS 2 Pointing Device Interface Error PS 2 Pointing Device Error 1 Re connect PS 2 keyboard and mouse 2 Enter BIOS Setup and load the default settings 3 PS 2 mouse 4 PS 2 keyboard 5 System board DMI Table Was Destroyed 1 Flash BIOS Press DEL key to enter Setup or F1 key to continue 1 Press DEL to enter Setup and reconfigure the...

Page 65: ...oot the system 2 Memory module 3 System board System works but fails to enter power saving mode when the Power Management Mode is set to Enabled and power saving timer set in BIOS has elapsed 1 Enter BIOS Setup and load default settings In Windows 98 check settings in Power Management Property of Control Panel 2 Reload software from Recovery CD System hangs before system boot 1 See Index of Sympto...

Page 66: ...rror 1 Enter BIOS Setup and Load default settings 2 Hard disk drive Hard disk drive LED fails to light but system operates normally 1 With the system power on measure the voltage of hard disk LED connector 2 Hard drive LED cable CD DVD ROM Drive NOTE Ensure CD DVD ROM drive is configured correctly in BIOS Setup cable jumper are set correctly and its laser beam is clean before diagnosing any CD DVD...

Page 67: ...r modem and set to receive messages and or fax Data fax modem software program invokes but cannot receive send data fax 1 Ensure the modem card is installed properly Fax voice modem software program invokes but has no sound output Data files are received normally voice from modem cannot be produced but system sound feature works normally 1 Ensure the modem voice in cable from modem adapter card to...

Page 68: ...g power switch does not turn off system Only unplugging the power cord from electrical outlet can turn off the system 1 Ensure the Power Switch 4 sec in BIOS Setup of Power Management is not set to Suspend 2 Power switch cable assembly Pressing power switch does not turn on the system 1 Ensure the power override switch situated at the back of the machine just above the connector for the power cabl...

Page 69: ...2 CDIN1 AUDIO1 WOM1 WOL1 CNR1 PCI3 PCI2 PCI1 SPEAKER1 IR1 PANEL1 JP1 BAT1 JP3 USB3 USB2 CASFAN1 FDD1 IDE2 IDE1 ATX2 CPUFAN1 DDR1 DDR2 DIM1 WOM1 WOL1 CASFAN1 JP3 IR1 USB2 USB3 SPEAKER1 PANEL1 FDD1 DIM2 CPUFAN1 IDE2 IDE1 AUDIO1 CDIN2 ATX1 CDIN1 JP1 BAT1 ATX2 PCI1 CNR1 PCI3 PCI2 RETENTION MODULE CPU SOCKET ATX 1 A GP 1 AGP1 COM2 COM2 Jumper and Connector Information Chapter 5 ...

Page 70: ...pin socket for Pentium 4 CPUs CPUFAN1 Cooling fan for CPU DIM1 DIM2 Two 184 pin DDR SDRAM FDD1 Floppy disk drive connector IDE1 Primary IDE channel IDE2 Secondary IDE channel IR1 Infrared cable header J5 SPIDF out header JP1 Clear CMOS jumper JP3 BIOS protection jumper LED1 Memory module LED PANEL1 Connector for case front panel switches and LED indicators PCI1 PCI3 Three 32 bit add on card slots ...

Page 71: ...e correct pins The illustrations below show a 2 pin jumper When the jumper cap is placed on both pins the jumper is SHORT If you remove the jumper cap or place the jumper cap on just one pin the jumper is OPEN This illustration shows a 3 pin jumper Pins 1 and 2 are SHORT 1 2 3 Checking Jumper Settings The following illustration shows the location of the mainboard jumpers Pin 1 is labeled ...

Page 72: ...bles you to clear the BIOS Follow these instructions 1 Turn the system off 2 Short pins 2 and 3 on jumper 1 3 Return the jumper to the normal setting 4 Turn the system on The BIOS is returned to the default settings Jumper 3 Enables you to prevent the BIOS from being updated flashed Set the jumper to disabled if you are going to update your BIOS After updating the BIOS return it to the default set...

Page 73: ...ed Service Guide For ACER AUTHORIZED SERVICE PROVIDERS your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines The Spare Parts List System has been available http aicsl acer com tw spl Please log in the syst...

Page 74: ...68 Chapter 6 ...

Search results

Summary of Contents for Aspire T300

Reviews:

Related manuals for Aspire T300

Brands by name

Popular brands

Acer Aspire T300, Service Manual

Search results

Summary of Contents for Aspire T300

Reviews:

Related manuals for Aspire T300

Brands by name

Popular brands