Silicon Graphics Altix XE320 User Manual page 174

A: BIOS Power-on Self Test
146
Table A-1 BIOS Post Codes (continued)
POST Code Description
EE Shadow Boot Block
EF System memory test
F0 Initialize interrupt vectors
F1 Initialize Run Time Clock
F2 Initialize video
F3 Initialize System Management Manager
F4 Output one beep
F5 Clear Huge Segment
F6 Boot to Mini DOS
F7 Boot to Full DOS
If BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap
(xxxx) indicating the address line or bits that failed. For example, "2C 0002" means address line
1 (bit one set) has failed. "2E 1020" means data bits 12 and 5 (bits 12 and 5 set) have failed in the
lower 16 bits. The BIOS also sends the bitmap to the port-80 LED display. It first displays the
checkpoint code, followed by a delay, the high-order byte, another delay, and then the low-order
byte of the error. It repeats this sequence continuously.
007-5466-001