Screen Message Probable Cause Recommended Action
1794–Inaccessible devices
attached to SATA 1 and/or
SATA 3.
Devices attached to the SATA 1 (blue)
and SATA 3 (black) connectors are
inaccessible while SATA Emulation is
set to Combined IDE Controller in
Setup.
1. Run Computer Setup (F10 Setup).
2. Select Storage>Storage Options, and set the
SATA controller to Separate IDE Controller.
1800–Temperature Alert. Internal temperature exceeds
specification.
1. Check that workstation air vents are not blocked
and that the cooling fan is running.
2. Verify processor speed selection.
3. Replace the processor.
4. Replace the system board.
1801–Microcode Update
Error.
Missing or Invalid Processor
Microcode Update. Contact HP for a
new Microcode Update to support the
new Processor Stepping.
Upgrade BIOS to proper version.
1802–Processor Not
Supported.
The system board does not support
the processor.
Replace the processor with a compatible one.
Invalid Electronic Serial
Number.
Electronic serial number has become
corrupted.
1. Run Computer Setup. If Setup already has data in
the field or will not allow the serial number to be
entered, download SP5572.EXE (SNZERO.EXE)
from
http://www.hp.com and run it on your
workstation.
2. Run Computer Setup. Try to enter the serial
number under Security>System ID, and save the
changes.
ECC Multiple Bit Error
Detected in Memory Module.
Chipset has detected more than one
bad bit in a 64-bit quadword of the
memory array.
Replace the memory module.
Parity Check 2. Parity RAM failure. Run Computer Setup and Diagnostic utilities.
Table 5-18 POST error messages (continued)
128 Chapter 5 System diagnostics and troubleshooting ENWW
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