Instruction/ maintenance manual of the product GX400 Dell
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Dell™OptiPlex™GX400ServiceManual Before You Begin Computer Cover Inside Your Computer System Board Components Front Panel Front - Panel Inserts Front - Panel Buttons Power Supply Sy.
Back to Contents Page AGP Card Brace Dell™OptiPlex™GX400ServiceManual Removing the AGP Card Brace Replacing the AGP Card Brace Removing the AGP Card Brace To access some components on the board, you may need to remove the AGP card brace.
Back to Contents Page Computer Battery Dell™OptiPlex™GX400ServiceManual Removing the Computer Battery Replacing the Computer Battery Removing the Computer Battery 1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
Back to Contents Page Before You Begin Dell™OptiPlex™GX400ServiceManual Precautionary Measures Recommended Tools Restarting the Computer Precautionary Measures Before you remove the computer cover, perform the following steps in the sequence indicated.
Back to Contents Page Chassis Intrusion Switch Dell™OptiPlex™GX400ServiceManual Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Removing the Chassis Intrusion Switch 1.
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Back to Contents Page Control Panel Dell™OptiPlex™GX400ServiceManual Components Removing the Control Panel Replacing the Control Panel Components The following figure shows the control panel and the location of its principal connectors and components.
Replacing the Control Panel To replace the control panel, perform the removal procedure in reverse. Back to Contents Page .
Back to Contents Page Computer Cover Dell™OptiPlex™GX400ServiceManual Removing the Computer Cover Replacing the Computer Cover Removing the Computer Cover 1. Turn off the computer and peripherals, and disconnect them from their electrical outlets.
b. Rotate the cover downward toward the bottom of the chassis. With both hands, press against the bottom edge of the cover to ensure that the securing hooks at the bottom of the cover click into place. Replacing the Cover c. Slide the two parts of the padlock ring together to lock the cover release mechanism.
Back to Contents Page Disk Drives and Media Dell™OptiPlex™GX400ServiceManual Drive Location Removing the Floppy Drive Replacing the Floppy Drive Removing.
5. Press the green floppy - drive bracket release button and slide the drive assembly out of the chassis. Removing the Floppy - Drive Bracket 6. Remove the mounting screw. 7. Rotate the left side of the floppy drive upward and lift it free from the drive bracket.
Removing a CD, Zip, or Other External Drive 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover . 2. Rotate the power supply away from the system board.
Replacing a CD, Zip, or Other External Drive 1. Attach the new drive to the drive bracket. Turn the drive upside down, and fit the bracket on the drive so that the screw holes align.
a. If you are installing an EIDE device, ensure that the interface cable is properly connected to the EIDE connector on the system board. b. If you are installing a SCSI device, ensure that the SCSI interface cable is properly connected to the interface connector on the SCSI controller board.
Removing a Hard Drive 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover . 2. Rotate the power supply away from the system board. 3. Remove the front panel .
Replacing a Hard Drive 1. Slide the drive into one of bracket bays, oriented so that the connectors on the back of the drive will face the interior of the chassis when the bracket is reinstalled. See " Removing a Hard Drive from the Bracket .
b. If you are installing a SCSI device, ensure that the SCSI interface cable is properly connected to the interface connector on the SCSI controller board. 5. Connect a DC power cable to the power input connector on the back of the drive. Attaching Hard - Drive Cables 6.
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Back to Contents Page Expansion Cards Dell™OptiPlex™GX400ServiceManual Expansion Card Types Removing an Expansion Card Expansion Card Types l Up to five 32 - bit, 33 - MHz PCI expansion cards. l One 32 - bit AGP card. The expansion slot supports AGP 4x or 2x Pro50 modes operating at 1.
4. If necessary, disconnect any cables connected to the card. 5. Remove the screw that secures the expansion card bracket to the chassis. Save the screw to use when installing the expansion card or filler bracket later in this procedure. 6. Grasp the card by its top corners and ease it out of its connector.
b. Connect external audio devices to the audio connectors on the back panel. 13. If you removed an add - in network adapter, perform the following steps: a. Enter system setup, select Integrated Devices and change the setting for Network Interface Card to On .
Back to Contents Page Expansion - Card Guide Dell™OptiPlex™GX400ServiceManual Removing the Expansion - Card Guide Replacing the Expansion - Card Guide Removing the Expansion - Card Guide 1.
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Back to Contents Page Front Panel Dell™OptiPlex™GX400ServiceManual Removing the Front Panel Replacing the Front Panel Removing the Front Panel 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
Back to Contents Page Front - Panel Buttons Dell™OptiPlex™GX400ServiceManual Removing Front - Panel Buttons Replacing Front - Panel Buttons Removing Front - Panel Buttons 1.
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Back to Contents Page Front - Panel Inserts Dell™OptiPlex™GX400ServiceManual Removing Front - Panel Inserts Replacing Front - Panel Inserts Removing Front - Panel Inserts 1.
Back to Contents Page Inside Your Computer Dell™OptiPlex™GX400ServiceManual Chassis Interior Chassis Interior Chassis Interior Back to Contents Page NOTE: Before you remove the cover, you must first slide the outer padlock ring to the left to unlock the cover release mechanism.
Back to Contents Page System Memory Dell™OptiPlex™GX400ServiceManual Removing a Memory Module Replacing a Memory Module Removing a Memory Module 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
2. Rotate the power supply back into position until the securing tab snaps into the release latch. 3. Stand the computer upright. 4. Replace the computer cover and restart the computer .
Back to Contents Page Microprocessor Dell™OptiPlex™GX400ServiceManual Removing the Microprocessor Replacing the Microprocessor Removing the Microprocessor 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
To remove the microprocessor, pull the socket lever straight up until the microprocessor is released. Then remove the microprocessor from the socket. Removing the Microprocessor Replacing the Microprocessor 1. Install the new microprocessor in the socket: a.
2. Install the microprocessor heat sink: a. Lower the heat sink to the microprocessor so that the heat sink fits in the heat sink retention base. b. For each of the replacement metal clips that secure the heat sink to the microprocessor, fit the end of the clip that does not have the latch to the heat sink retention base.
Back to Contents Page Microprocessor Cooling Fan Dell™OptiPlex™GX400ServiceManual Removing the Microprocessor Cooling Fan Replacing the Microprocessor Cooling Fan Removing the Microprocessor Cooling Fan 1.
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Back to Contents Page Microprocessor Airflow Shroud Dell™OptiPlex™GX400ServiceManual Removing the Microprocessor Airflow Shroud Replacing the Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud 1.
Back to Contents Page Power Supply Dell™OptiPlex™GX400ServiceManual Rotating the Power Supply Removing the Power Supply Replacing the Power Supply Rotating the Power Supply To access some of the components on the system board, you may need to rotate the power supply out of the way.
7. Disengage the pivot pin on the left rear of the power supply from the chassis socket. Removing the Power Supply 8. Lift the power supply away from the chassis. Replacing the Power Supply 1. Insert the pivot pin on the left rear of the power supply into the chassis socket.
Back to Contents Page System Board Dell™OptiPlex™GX400ServiceManual Removing the System Board Replacing the System Board Removing the System Board 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
Replacing the System Board 1. Lower the system board into the chassis at an angle, with the I/O panel connectors lowered into the chassis. 2. Carefully push down evenly on both sides of the system board to engage the grounding clips onto their respective chassis tabs.
Back to Contents Page System Board Components Dell™OptiPlex™GX400ServiceManual Components Labels Jumpers Components System Board Components Labels Syste.
Jumpers System Board Jumpers To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. The following table lists the system board jumpers and their settings.
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Back to Contents Page Dell™OptiPlex™GX400ServiceManual Notes, Notices, and Cautions Notes, Notices, and Cautions Back to Contents Page NOTE: A NOTE indicates important information that helps you make better use of your computer.
Back to Contents Page VRM Dell™OptiPlex™GX400ServiceManual Removing the VRM Replacing the VRM Removing the VRM 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
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An important point after buying a device Dell GX400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Dell GX400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Dell GX400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Dell GX400 you will learn all the available features of the product, as well as information on its operation. The information that you get Dell GX400 will certainly help you make a decision on the purchase.
If you already are a holder of Dell GX400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Dell GX400.
However, one of the most important roles played by the user manual is to help in solving problems with Dell GX400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Dell GX400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
