What does error code 0022c mean on an HP Compaq ProLiant 800 server and how can it be resolved?

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The error code 0022c on an HP Compaq ProLiant 800 server does not appear in the official HP documentation, suggesting it may be a typographical error of the code, a specific proprietary code, or a variation depending on your BIOS version. However, on the ProLiant 800, which uses 72-pin EDO ECC memory (DIMM) and a Compaq Smart-2SL controller, error codes related to numbers starting with 0022 are generally associated with memory or hardware component issues. Here’s how to diagnose the problem:

First, note the exact complete error code that appears on the POST (Power-On Self-Test) screen or in the system logs, as a simple variation may indicate a different problem. If the message includes a beep sound, note the number and frequency of the beeps, as the ProLiant 800 uses beeps to communicate diagnostic codes.

To check the RAM: Completely power down the server and unplug it for at least one minute. Open the server case by removing the side panels. Locate the 4 DIMM slots on the motherboard (the ProLiant 800 supports up to 512 MB of EDO ECC memory). Remove each memory module by pressing the retaining clips at each end, then firmly reinsert them until you hear a locking click. Ensure that the notches on the DIMMs align correctly with the pins of the slot.

Testing isolated memory modules: If you have multiple memory modules, power on the server with one module at a time in the first DIMM slot, starting with the slot closest to the Intel Pentium II or III processor. Restart the server and note if the error code reappears. This will help identify if a module is faulty. Test each module individually in this manner.

Checking other components: Ensure that the processor (Pentium II 180-450 MHz or Pentium III depending on your model) is properly seated in its socket and locked in place. Also, check that the PCI/ISA expansion cards are properly inserted into their slots. Make sure no internal connectors are unplugged and that the server's CMOS battery is not dead (it can affect diagnostic tests).

Using the Compaq utility: Once the server is restarted, access the Compaq System Configuration Utility or SmartStart (depending on your version). Run the full memory diagnostic from this menu. If a similar error code reappears during this test, the diagnostic will pinpoint exactly which memory module or slot is faulty.

If after all these checks the problem persists, contact HP/Compaq support or a server technician with the exact error code, your server's serial number, and the complete diagnostic logs, as this very specific error code requires a thorough analysis of your server's capabilities.

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