Troubleshooting Processors; Troubleshooting The Blade System Board - Dell PowerEdge M420 Owner's Manual

NOTE: SD card slot 2 referred in this procedure is the vFlash SD card slot. You can install an SD card in SD card
slot 2 to enable the Internal SD Card Redundancy option in the Integrated Devices screen of the System Setup.
1. Enter the System Setup and ensure that the Internal SD Card Port is enabled.
2. Note the Internal SD Card Redundancy option enabled in the Integrated Devices screen of the System Setup
(Mirror or Disabled).
NOTE: If you retain the original settings of the SD card in the System Setup, the replaced SD card is enabled when
you reinstall the blade in the sleeve.
3. Remove the blade from the sleeve.
4. If the Internal SD Card Redundancy option in the Integrated Devices screen of the System Setup is set to Mirror
mode and SD card 1 has failed:
a) Remove the SD card from SD card slot 1.
b) Remove the SD card present in SD card slot 2 and insert it into SD card slot 1.
c) Install a new SD card in slot 2.
5. If the Internal SD Card Redundancy option in the Integrated Devices screen of the System Setup is set to Mirror
mode and SD card 2 has failed, insert the new SD card into SD card slot 2.
6. If the Internal SD Card Redundancy option in Integrated Devices screen of the System Setup is set to Disabled,
replace the failed SD card with a new SD card.
7. Install the blade in the sleeve.
8. Enter the System Setup and ensure that the Internal SD Card Port option is enabled and Internal SD Card
Redundancy option is set to Mirror mode.
9. Check if the SD card is functioning properly.
If the problem persists, see

Troubleshooting Processors

1. Remove the blade from the sleeve.
2. Ensure that the processor(s) and heat sink(s) are properly installed.
3. If your system only has one processor installed, ensure that it is installed in the primary processor socket (CPU1).
4. Install the blade in the sleeve.
5. Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
If the problem persists, see

Troubleshooting The Blade System Board

CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Remove the blade from the sleeve.
2. Clear the blade NVRAM.
3. If there is a still a problem with the blade, remove and reinstall the blade in the sleeve.
4. Turn on the blade.
5. Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
If the tests fail, see
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