Dell Precision R5400 Service Manual Download

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Power Distribution Unit

Dell Precision™ R5400 Service Manual

Removing the Power Distribution Unit

Replacing the Power Distribution Unit

Removing the Power Distribution Unit

Perform the steps in

Before Working on Your Computer

Disconnect the power cable connector labeled "P9" from the back of the optical drive.

Disconnect the hard-drive power cable(s) at the connector(s) labeled "P8" (upper hard drive) and "P7" (lower hard drive, if installed).

CAUTION:

Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer.

Before working inside the computer, read the safety information that shipped with the computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

NOTICE:

Pull on the connector and not on the power cable to disconnect the connector from the back of the optical drive.

NOTE:

Do not disconnect the power cables directly from the back of the hard drives, as it is not necessary for removal of the power distribution

unit.

power-cable connector P1

cable-routing clip (power cable
P1)

power-cable connector P2

cable-routing portal (power
cables P1, P2, and P3)

power distribution unit

power-cable connector P3

cable-routing portal (power
cables P4, P5, and P6)

hard-drive (lower) power cable
connector (P7)

hard-drive (upper) power cable

10 optical-drive power cable

Summary of Contents for Precision R5400

Page 1: ...rademarks of Microsoft Corporation in the United States and or other countries Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own Model WMTE01 June 2008 Rev A00 Troubleshooting Power Distribution Unit Before Working o...

Page 2: ... s Time and Date fields 8 Exit the system setup program CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulato...

Page 3: ...lectrical outlet for at least an hour 10 After an hour reconnect the computer to its electrical outlet and turn it on 11 Enter the system setup program and if the time and date are still incorrect see Contacting Dell for instructions on obtaining technical assistance Back to Contents Page ...

Page 4: ...ulatory Compliance Homepage at www dell com regulatory_compliance NOTE The color of your computer and certain components may appear differently than shown in this document CAUTION Before you begin any of the procedures in this section follow the safety instructions that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell co...

Page 5: ...to their electrical outlets Back to Contents Page CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover NOTICE Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate...

Page 6: ...ezel 3 Rotate the left end of the bezel away from the computer to release the right end of the bezel 4 Pull the bezel away from the computer Replacing the Front Bezel To replace the front bezel perform the above steps in reverse Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before work...

Page 7: ...bers slide down between the guiding pins 2 Slide the brace down until it snaps into place Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety best practices information see the...

Page 8: ...ervice technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTE You must remove all expansion cards from the expansion card...

Page 9: ... seat the riser board into the riser board connector on the system board 4 Press the blue release latches downward into the cage Back to Contents Page NOTE The outer expansion card cage has two openings on one end for threading the power cables P5 and or P6 if required for any installed expansion cards NOTE The center expansion card cage has three guides for three posts on the system board and the...

Page 10: ...e 4 Open the expansion card latch and remove the filler bracket 5 Install the expansion card a If the expansion card is full length align its front edge with the front card guide CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with th...

Page 11: ...pansion card cage see Removing an Expansion Card Cage 3 Release the expansion card a Open the expansion card latch b Grasp the expansion card by its top corners and remove it from the expansion card connector 4 If you are removing the card permanently install a metal filler bracket over the empty expansion slot opening and close the expansion card latch Back to Contents Page 1 center expansion car...

Page 12: ... of the computer and offset the cover slightly back so that it clears the chassis J hooks and lays flush on the computer chassis 3 Push down the latch to lever the cover into the closed position 4 Rotate the latch release lock in a clockwise direction to secure the cover 5 Replace the front bezel see Replacing the Front Bezel CAUTION Only trained service technicians are authorized to remove the co...

Page 13: ...Back to Contents Page ...

Page 14: ... from the chassis Replacing the Control Panel Assembly 1 Place the control panel assembly in the computer chassis slide it forward until the screw holes align and the power button fits in its front panel opening and replace the securing screw 2 Connect the front USB connector cable to the control panel board CAUTION Only trained service technicians are authorized to remove the computer cover and a...

Page 15: ...3 Connect the control panel cable to the control panel board 4 Connect the speaker cable to the control panel board Back to Contents Page ...

Page 16: ...oard and lift the fan pair out of the chassis Replacing a Cooling Fan Pair 1 Slip each fan in the pair onto the four corner support pins for each fan 2 Route the fan cable pair over the appropriate corner slot in the top of the unremovable fan bracket at the back of the fans and reconnect the cable connectors to the system board CAUTION Only trained service technicians are authorized to remove the...

Page 17: ...3 Slide the removable fan bracket down into its slot in the chassis in front of the row of fans Back to Contents Page ...

Page 18: ... minute updates about technical changes to your computer or advanced technical reference material for technicians or experienced users Operating System Media The Operating System media is a CD or DVD that may have shipped with your computer Reinstall your operating system Safety Regulatory Warranty and Support Documentation This type of information may have shipped with your computer For additiona...

Page 19: ...er out of the bay 3 Remove the four screws from the side rails on the carrier and separate the hard drive from the carrier 4 Install the replacement hard drive in the carrier a Slide the drive into the carrier ensuring that the drive connectors are accessible at the back of the carrier b Align the screw holes on the hard drive with the holes on the hard drive carrier c Attach the four screws to se...

Page 20: ...he drive into the carrier ensuring that the drive connectors are accessible at the back of the carrier b Align the screw holes on the hard drive with the holes on the hard drive carrier c Remove the four screws from their storage location on the chassis and use them to secure the drive in the carrier 1 screws 4 2 drive carrier 3 hard drive NOTE Four screws for installing a hard drive in the second...

Page 21: ...4 Complete step 5 and step 6 of Replacing a Hard Drive Back to Contents Page ...

Page 22: ...pport and Customer Service Dell s support service is available to answer your questions about Dell hardware Our support staff uses computer based diagnostics to provide fast accurate answers To contact Dell s support service see Before You Call and then see the contact information for your region or go to support dell com DellConnect DellConnect is a simple online access tool that allows a Dell se...

Page 23: ...pts you for the information needed to locate and report on your order For the telephone number to call for your region see Contacting Dell Problems With Your Order If you have a problem with your order such as missing parts wrong parts or incorrect billing contact Dell for customer assistance Have your invoice or packing slip available when you call For the telephone number to call for your region...

Page 24: ...Region drop down menu at the bottom of the page 2 Click Contact Us on the left side of the page and select the appropriate service or support link based on your need 3 Choose the method of contacting Dell that is convenient for you Back to Contents Page NOTE Have your Express Service Code ready when you call The code helps Dell s automated support telephone computer direct your call more efficient...

Page 25: ... memory size speed and technology Non Optimal Memory Configurations Computer performance can be affected if your memory configuration does not conform to the preceding installation guidelines Your computer may issue an error message during start up stating that your memory configuration is non optimal Installing Memory Modules 1 Perform the steps in Before Working on Your Computer 2 Remove the mem...

Page 26: ...s 1 Perform the steps in Before Working on Your Computer 2 Remove the memory cooling shroud see Removing the Cooling Shroud 3 Locate the memory module sockets on the system board 4 Press down and out on the ejectors on each end of the socket until the memory module pops out of the socket 5 Replace the memory cooling shroud see Replacing the Cooling Shroud Back to Contents Page NOTE The memory modu...

Page 27: ...e tray snaps into place 2 Connect the optical drive SATA data cable and the power cable to the connectors on the back of the drive Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional ...

Page 28: ...nside the computer read the safety information that shipped with the computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance NOTICE Pull on the connector and not on the power cable to disconnect the connector from the back of the optical drive NOTE Do not disconnect the power cables directly from the back of the hard dr...

Page 29: ...ctor P8 hard drive in upper bay and connector P7 hard drive in lower bay if applicable 3 Reconnect the optical drive power cable connector P9 to the back of the optical drive 4 Tuck connectors P7 and P8 and their cables down into the space between the power distribution unit and the back of the hard drives connector P8 connector P9 11 optical drive SATA data cable 12 cable routing clip power cable...

Page 30: ...he chassis at either end of the cable routing channel 8 Replace the cooling shroud see Replacing the Cooling Shroud 9 Reconnect the power cable connectors labeled P1 P2 P3 and P4 to the system board 10 Thread connectors P5 and P6 as applicable if being used through the cable routing openings in the outer expansion card cage and reconnect the cable s to the expansion cards s if installed NOTE If po...

Page 31: ...an Expansion Card Cage 12 Replace the mid support brace see Replacing the Mid Support Brace 13 Reinstall the power supply see Replacing the Power Supply Back to Contents Page 1 power cable connector P5 2 power cable connector P6 3 cable guide 4 storage shelf for power cables P5 and P6 when not in use ...

Page 32: ...t pry the heat sink from the processor 5 Lift the heat sink off of the processor and set the heat sink aside 6 Press down and outward to disengage the socket release lever and rotate it 90 degrees upward until the processor is released from the socket 7 Rotate the processor shield upward and out of the way CAUTION Only trained service technicians are authorized to remove the computer cover and acc...

Page 33: ...p of the processor n Place the heat sink on the processor n Tighten the retention screws on the heat sink 4 Replace the computer cover see Replacing the Cover and reboot the computer As the computer boots it detects the presence of the new processor and automatically changes the computer configuration information in the system setup program 5 Press F2 to enter the system setup program and check th...

Page 34: ......

Page 35: ...t pry the heat sink from the processor 5 Lift the heat sink off of the processor and set the heat sink aside 6 Press down and outward to disengage the socket release lever and rotate it 90 degrees upward until the processor is released from the socket 7 Rotate the processor shield upward and out of the way CAUTION Only trained service technicians are authorized to remove the computer cover and acc...

Page 36: ...nly to the top of the processor Place the heat sink on the processor Tighten the retention screws on the heat sink l Replace the computer cover see Replacing the Cover and reboot the computer As the computer boots it detects the presence of the new processor and automatically changes the computer configuration information in the system setup program 5 Press F2 to enter the system setup program and...

Page 37: ...Back to Contents Page ...

Page 38: ... With the power supply handle in the extended position slide the new power supply into the chassis 2 Rotate the handle down until it is completely flush with the power supply faceplate and the locking tab engages Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the c...

Page 39: ...e card edge connector aligns with the expansion card connector on the riser board d Insert the card edge connector firmly into the connector on the riser board until the card is fully seated e When the card is seated in the connector close the expansion card latch 6 Connect the two wire cable included with the host card kit to the card and to the system board 7 Reconnect any expansion card cables ...

Page 40: ...tor 4 If you are removing the card permanently install a metal filler bracket over the empty expansion slot opening and close the expansion card latch Back to Contents Page NOTE Remember to disconnect the two wire cable from the system board NOTE You must install a filler bracket over an empty expansion slot to maintain Federal Communications Commission FCC certification of the computer The bracke...

Page 41: ...he board so that the guide pin fits in the corresponding hole in the board 2 With the release knob raised slide the board toward the expansion card latches until the guide hooks and release knob click securely into place 3 Replace any expansion cards that you removed in step 3 of Removing the Center Riser Board Back to Contents Page CAUTION Only trained service technicians are authorized to remove...

Page 42: ...n 1 and fan 2 and the other hook centered between fan 3 and fan 4 Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety best practices information see the Regulatory Compliance H...

Page 43: ......

Page 44: ...lace 2 Connect the speaker cable to the control panel board 3 Connect the control panel cable to the control panel board Back to Contents Page CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety bes...

Page 45: ...g Shroud 6 Disconnect the power cables labeled P1 P2 P3 and P4 from the system board CAUTION Only trained service technicians are authorized to remove the computer cover and access any of the components inside the computer Before working inside the computer read the safety information that shipped with the computer For additional safety best practices information see the Regulatory Compliance Home...

Page 46: ...9 11 SATA data cable connector 12 cable routing clip power cables P4 P5 and P6 13 cable routing channel power cables P4 P5 and P6 14 cable routing clip power cables P4 P5 and P6 15 power cable connector P4 storage for power cables P5 and P6 CAUTION The DIMMs are hot to the touch for some time after the computer has been powered down Allow time for the DIMMs to cool before handling them Handle the ...

Page 47: ...nk s and processor s see Installing a Processor 5 Replace the memory modules see Installing Memory Modules 6 Reconnect the control panel cable to the system board 7 Reconnect the four fan connectors to the system board 8 Reconnect the front USB cable connector to the system board 9 Reconnect the SATA_0 SATA_1 and SATA_2 data connectors to the system board 10 Reconnect the power cables labeled P1 P...

Page 48: ...is a registered trademark of Bluetooth SIG Inc and is used by Dell under license Microsoft Windows and Windows Vista and the Windows Start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their p...

Page 49: ... and then reinstall any cards see Expansion Cards l Eliminate interference Some possible causes of interference are Power keyboard and mouse extension cables Too many devices on a power strip Multiple power strips connected to the same electrical outlet Diagnostic Lights To help troubleshoot a problem your computer has four lights labeled 1 2 3 and 4 on the front panel When the computer starts nor...

Page 50: ... If the computer starts normally continue to install additional memory modules one at a time until you have identified a faulty module or reinstalled all modules without error l If available install working memory of the same type into your computer see System Memory l If the problem persists contact Dell see Contacting Dell System board failure has occurred l Contact Dell see Contacting Dell Memo...

Page 51: ...ut of range may or may not indicate a potential hard drive problem S M A R T error possible HDD failure This feature can be enabled or disabled in the system setup program see the Dell Technology Guide for instructions on accessing and using the system setup program 1 short F12 key pressed Code repetitive short beeps Description Suggested Resolution 1 BIOS checksum failure Possible system board fa...

Page 52: ...mation and ensure that the device you want to test is displayed in the system setup program and is active The Dell Diagnostics is located on a separate diagnostic utility partition on your hard drive 1 Ensure that the computer is connected to an electrical outlet that is known to be working properly 2 Turn on or restart your computer 3 When the DELL logo appears press F12 immediately If you wait t...

Page 53: ...tics 7 At the Dell Diagnostics Menu type 1 to select Dell 32 bit Diagnostics for Resource CD graphical user interface 8 Press Tab to select Test Computer and then press Enter 9 At the Dell Diagnostics Main Menu left click with the mouse or press Tab and then Enter to select the test you want to run see Dell Diagnostics Main Menu 10 After all tests have completed close the test window to return to ...

Page 54: ...rms a quick test of devices in the computer This typically can take 10 to 20 minutes NOTE The Express Test requires no interaction on your part Run Express Test first to increase the possibility of tracing a problem quickly Extended Test Performs a thorough check of devices in the computer This typically can take an hour or more NOTE The Extended Test periodically requires your input to answer spe...

Page 55: ...eshooter Run the Dell Diagnostics See Dell Diagnostics Optical drive problems Adjust the Windows volume control l Click the speaker icon in the lower right corner of your screen l Ensure that the volume is turned up by clicking the slidebar and dragging it up l Ensure that the sound is not muted by clicking any boxes that are checked NOTE The procedures in this document were written for the Window...

Page 56: ...ents to remove the checkmark as needed Ensure that you are connected to the Internet Ensure that you have subscribed to an Internet provider With the Outlook Express e mail program open click File If Work Offline has a checkmark next to it click the checkmark to remove it and connect to the Internet For help contact your Internet service provider Error Messages If the error message is not listed s...

Page 57: ...and Maintenance Computer Computer Properties Hardware Device Manager If your IEEE 1394 device is listed Windows recognizes the device If you have problems with a Dell IEEE 1394 device Contact Dell see Contacting Dell If you have problems with an IEEE 1394 device not provided by Dell Contact the IEEE 1394 device manufacturer Keyboard Problems Check the keyboard cable l Ensure that the keyboard cabl...

Page 58: ... Windows operating system Run the Program Compatibility Wizard Windows Vista The Program Compatibility Wizard configures a program so that it runs in an environment similar to non Windows Vista operating system environments 1 Click Start Control Panel Programs Use an older program with this version of Windows 2 In the welcome screen click Next 3 Follow the instructions on the screen Windows XP The...

Page 59: ... problems l Reseat the memory modules see System Memory to ensure that your computer is successfully communicating with the memory l Ensure that you are following the memory installation guidelines see System Memory l Ensure that the memory you are using is supported by your computer For more information about the type of memory supported by your computer see System Memory l Run the Dell Diagnosti...

Page 60: ...cable in the power connector on the back of the computer and the electrical outlet l Bypass power strips power extension cables and other power protection devices to verify that the computer turns on properly l Ensure that any power strips being used are plugged into an electrical outlet and are turned on l Ensure that the electrical outlet is working by testing it with another device such as a la...

Page 61: ...ter ensure that the Print to the following port s setting is USB Reinstall the printer driver See the printer documentation for information on reinstalling the printer driver Scanner Problems Check the scanner documentation See the scanner documentation for setup and troubleshooting information Unlock the scanner Ensure that your scanner is unlocked if the scanner has a locking tab or button Resta...

Page 62: ...driver See your computer s Setup and Quick Reference Guide for instructions on reinstalling software Run the Hardware Troubleshooter See Hardware Troubleshooter No sound from headphones Check the headphone cable connection Ensure that the headphone cable is securely inserted into the headphone connector see your computer s Setup and Quick Reference Guide for illustrations identifying each connecto...

Page 63: ... the monitor self test Move the subwoofer away from the monitor If your speaker system includes a subwoofer ensure that the subwoofer is positioned at least 60 centimeters 2 feet away from the monitor Move the monitor away from external power sources Fans fluorescent lights halogen lamps and other electrical devices can cause the screen image to appear shaky Turn off nearby devices to check for in...

Page 64: ...To enroll for the Dell Technical Update service go to support dell com technicalupdate Back to Contents Page ...

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