Specifications

Appendix C: POST Error Messages and Handling
Revision 1.3
Intel order number E44588-003
51
Error Code Error Message Response
9506 ATA/ATPI component encountered a controller error. Minor
95A6 PCI component encountered a controller error. Minor
95A7 PCI component encountered a read error. Minor
95A8 PCI component encountered a write error. Minor
9609 Unspecified software component encountered a start error. Minor
9641 PEI Core component encountered a load error. Minor
9667 PEI module component encountered a illegal software state error. Fatal
9687 DXE core component encountered a illegal software state error. Fatal
96A7 DXE boot services driver component encountered a illegal software state error. Fatal
96AB DXE boot services driver component encountered invalid configuration. Minor
96E7 SMM driver component encountered a illegal software state error. Fatal
0xA022 Processor component encountered a mismatch error. Major
0xA027 Processor component encountered a low voltage error. Minor
0xA028 Processor component encountered a high voltage error. Minor
0xA421 PCI component encountered a SERR error. Fatal
0xA500 ATA/ATPI ATA bus SMART not supported. Minor
0xA501 ATA/ATPI ATA SMART is disabled. Minor
0xA5A0 PCI Express component encountered a PERR error. Minor
0xA5A1 PCI Express component encountered a SERR error. Fatal
0xA5A4 PCI Express IBIST error. Major
0xA6A0 DXE boot services driver Not enough memory available to shadow a legacy option ROM. Minor
0xB6A3 DXE boot services driver Unrecognized. Major
The following table lists POST error beep codes. Prior to system video initialization, the BIOS
uses these beep codes to inform users of error conditions. The beep code is followed by a user-
visible code on POST Progress LEDs.
Table 29. POST Error Beep Codes
Beeps Error Message POST Progress
Code
Description
3 Memory error Multiple System halted because a fatal error related to the
memory was detected.
The following Beep Codes are from the BMC, and are controlled by the Firmware team. They are listed here
for convenience.
1-5-2-1 CPU: Empty slot /
population error.
N/A CPU sockets are populated incorrectly – CPU1 must be
populated before CPU2.
1-5-4-2 Power fault: DC
power
unexpectedly lost
(power good
dropout)
N/A Power unit sensors – power unit failure offset.
1-5-4-4 Power control fault
(Power good
assertion timeout)
N/A Power unit sensors – soft power control failure offset.