Dell Precision 620 User Manual

Dell™Precision™WorkStation620SystemsServiceManual Model WCP Information in this document is subject to change without notice. ©2000 Dell Comp

of the bracket should be flush with the front of the drive (see Figure 13). To further ensure proper positioning of the drive in the chassis, insert a

12. Replace the front panel. 13. Replace the computer cover, reconnect your computer and peripherals to their power sources, and turn them on. 14. U

2. Remove the computer cover. 3. Remove the front panel as instructed in "Front Panel." 4. Remove the drive bracket from the chassis as in

10. If it is not already connected, connect the other end of the interface cable to the appropriate connector on the system board. 11. Replace the co

3. Slide the card brace forward until it disengages from the slot in the card guide, then rotate the brace up and lift it away from the chassis. To r

Figure 21 shows the AGP Pro card extension that occludes PCI slots 1 and 2. Expansion-Card Removal To remove an expansion card, perform the following

6. When the card is firmly seated in the connector, secure the card's mounting bracket to the chassis with the screw you removed in step 4 of the

To remove the expansion-card guide cooling fan, perform the following steps. 1. Remove the computer cover according to the instructions in "Compu

To remove the chassis intrusion switch and install a replacement, perform the following steps: 1. Disconnect the chassis intrusion switch cable fro

Figure 27. Removing the Power Supply 4. Open the release latch and slide the power supply about 25 mm (1 inch) toward the front of the system. 5. Det

Back to Contents Page RemovingandReplacingParts:DellPrecision™WorkStation620SystemsServiceManual               Overview This s

1 3-pin processor fan connector 2 34-pin diskette drive cable connector 3 Processor 0 (PROC_0) SECC connector 4 Processor 1 (PROC_1) SECC or termina

System Board Jumpers Figure 29 shows the location of the jumpers on the system board. Table 1 lists the system board jumpers and their settings. Figu

System Board Labels Table 2 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions. Ta

To remove a memory expansion card (MEC), perform the following steps. 1. Remove the computer cover according to the instructions in " Computer C

1. Locate the plastic securing clips at each end of the socket (see Figure 32). 2. Press the clips outward until they snap open. 3. Press the memor

 To take advantage of future options in speed and functionality, you can add a second microprocessor or replace either the primary or secondary proc

7. Insert the new microprocessor into the system board connector (see Figure 35). Press the processor firmly into its connector until it is fully sea

12. Enter System Setup, and confirm that the top line in the System Data area correctly identifies the type and number of installed processor(s). 13.

6. Holding the rear MEC bracket assembly, grasp the top and bottom of the fan (see Figure 38) and pull the fan loose from the bracket. Figure 38. Coo

object such as a plastic screwdriver. When you replace the system battery, orient the new battery with the "+" facing up. Insert the batter

Restarting the System To restart the system and reset the chassis intrusion detector, perform the following steps: 1. Replace the computer cover and

5. Reinstall the rear MEC bracket and system cooling fan. 6. Reinstall the MECs and the microprocessor/heat sink assembly. 7. Reinstall all the expa

Figure 2. Computer Cover Removal             5. Lift the bottom of the cover, allowing it to pivot up toward you. 6. Disengage the tab

With both hands, press against the bottom edge of the cover to make sure that the securing hooks at the bottom of the cover click into place. 6. Slid

To access some drive bays in the chassis, you must first remove the front panel. To remove the front panel, you first must remove the computer cover (

1. Hold the front panel with the front facing you. 2. From the front of the front panel, use your thumbs to press inward on the insert until it snaps

Figure 10. 3.5-Inch Drive Bracket 5.25-Inch Diskette, Tape, or CD-ROM Drive Removal To remove a diskette, tape, or CD-ROM drive, perform the followi

Figure 12. 5.25-Inch Drive Bracket Installing a 5.25-Inch Diskette, Tape, or CD-ROM Drive To install a 5.25-inch diskette, tape, or CD-ROM drive, p