Cooling fan – Dell Precision 620 User Manual
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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. While in System Setup, reset the chassis intrusion detector by changing Chassis Intrusion to Enabled, Enabled-Silent, or Disabled.
14. Run the Dell Diagnostics to verify that the new microprocessor is operating correctly.
15. Start the operating system and verify that it detects both processors.
If the Microsoft Windows NT 4.0 operating system does not detect the second processor, use the uptomp.exe utility (found in the optional
Windows NT Resource kit) or reinstall the operating system.
Cooling Fan Removal
The system cooling fan is attached to the rear MEC guide bracket. To remove the system cooling fan, perform the following steps.
1.
.
2.
Remove the memory modules from the MEC guide bracket.
3. Remove the fan power cable from its connector (see
for the location of the system FAN connector).
4. Rotate the rear MEC guide bracket.
Push the top edge of the rear MEC guide bracket toward the front of the computer. Rotate the rear bracket down toward the system board
(see Figure 36).
Figure 36. Rotate the MEC Guide Bracket
5. To release the bracket from the system board, grasp the sides of the guide bracket and pull it toward the front of the computer. Keep the
guide bracket parallel to the system board (see Figure 37).
Figure 37. MEC Guide Bracket Release
NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on
resetting the chassis intrusion detector.
NOTE: For information on troubleshooting and running the Dell Diagnostics, see "Troubleshooting" in your system
User's Guide to help solve problems that may occur.
NOTES: For instructions on running the uptomp.exe utility, see your Windows NT Resource kit documentation.
For instructions on reinstalling Windows NT, see your Windows NT installation guide documentation.
CAUTION: Before you remove the computer cover, see "
1 System cooling fan
2 Rear MEC guide bracket
3 Front MEC guide bracket