Dell OptiPlex GXa Service Manual - Page 59

described in SEC Cartridge/Heat Sink Assembly - help

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3. Verify that all chips, DIMMs, and expansion cards are fully seated in their sockets or connectors. WARNING: The SEC cartridge/heat sink assembly can get extremely hot. Be sure the assembly has had sufficient time to cool before you touch it. While reseating the SEC cartridge/heat sink assembly, use a wrist grounding strap or maintain contact with a metal surface on the chassis. The microprocessor is physically located in a single-edge contact (SEC) cartridge/heat sink assembly on the system board. To reseat the microprocessor, remove the SEC cartridge/heat sink assembly and reinstall it as described in "SEC Cartridge/Heat Sink Assembly" in Chapter 4, 5, 6, or 7, as appropriate for your system. To reseat a DIMM, remove it from its socket and reinstall it as described in "DIMMs" in Chapter 4, 5, 6, or 7, as appropriate for your system. If you need to reseat an expansion card, remove it from its connector and reinstall it as described in "Expansion Cards" in Chapter 4, 5, 6, or 7, as appropriate for your system. 4. Verify that all jumpers are set correctly. For information about these jumpers, see "System Board Jumpers" in Chapter 1. 5. Check all cable connectors inside the computer to verify that they are firmly attached to their appropriate connectors. 6. Reinstall the computer cover. 7. Reconnect the computer and any attached peripherals to their power sources, and turn them on. Does the problem appear to be resolved? Yes. No further steps are necessary. Terminate the procedure. No. Proceed to the next sections, "Eliminating Resource Conflicts," "Running Computer Diagnostics," and "Getting Help." Basic Troubleshooting 2-5

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Basic Troubleshooting
2-5
3.
Verify that all chips, DIMMs, and expansion cards are fully seated in
their sockets or connectors.
The microprocessor is physically located in a single-edge contact (SEC)
cartridge/heat sink assembly on the system board. To reseat the micro-
processor, remove the SEC cartridge/heat sink assembly and reinstall it as
described in “SEC Cartridge/Heat Sink Assembly” in Chapter 4, 5, 6, or 7,
as appropriate for your system.
To reseat a DIMM, remove it from its socket and reinstall it as described in
“DIMMs” in Chapter 4, 5, 6, or 7, as appropriate for your system.
If you need to reseat an expansion card, remove it from its connector and
reinstall it as described in “Expansion Cards” in Chapter 4, 5, 6, or 7, as
appropriate for your system.
4.
Verify that all jumpers are set correctly.
For information about these jumpers, see “System Board Jumpers” in
Chapter 1.
5.
Check all cable connectors inside the computer to verify that they are
firmly attached to their appropriate connectors.
6.
Reinstall the computer cover.
7.
Reconnect the computer and any attached peripherals to their power
sources, and turn them on.
Does the problem appear to be resolved?
Yes.
No further steps are necessary. Terminate the procedure.
No.
Proceed to the next sections, “Eliminating Resource Conflicts,” “Run-
ning Computer Diagnostics,” and “Getting Help.”
WARNING: The SEC cartridge/heat sink assembly can get
extremely hot. Be sure the assembly has had sufficient time to cool
before you touch it.
While reseating the SEC cartridge/heat sink assembly, use a wrist
grounding strap or maintain contact with a metal surface on the
chassis.