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Control panel message
512-Chassis, Rear Chassis, or Front Chassis Fan
not Detected
514-CPU or Chassis Fan not Detected
660-Display cache is detected unreliable
1720-SMART Hard Drive Detects Imminent
Failure
1801-Microcode Patch Error
2200-PMM Allocation Error during MEBx
Download
2201-MEBx Module did not checksum correctly
94
Chapter 9 POST error messages
Description
Fan is not connected or may have
malfunctioned.
Fan is not connected or may have
malfunctioned.
Integrated graphics controller display cache is
not working properly and will be disabled.
Hard drive is about to fail. (Some hard drives
have a hard drive firmware patch that will fix an
erroneous error message.)
Processor is not supported by ROM BIOS.
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
Recommended action
1.
Reseat fan.
2.
Reseat fan cable.
3.
Replace fan.
1.
Reseat fan.
2.
Reseat fan cable.
3.
Replace fan.
Replace system board if minimal graphics
degrading is an issue.
1.
Determine if hard drive is giving correct
error message. Enter Computer Setup and
run the Drive Protection System test
under Storage > DPS Self-test.
2.
Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)
3.
Back up contents and replace hard drive.
1.
Upgrade BIOS to proper version.
2.
Change the processor.
1.
Reboot the computer.
2.
Unplug the power cord, reseat the
memory modules, and reboot the
computer.
3.
If the memory configuration was recently
changed, unplug the computer, restore
the original memory configuration, and
reboot the computer.
4.
If the error persists, replace the system
board.
1.
Reboot the computer.
2.
Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3.
If the memory configuration was recently
changed, unplug the power cord, restore
the original memory configuration, and
reboot the computer.
4.
If the error persists, replace the system
board.
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