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90 Gateway 7450R Server System Manual
4Eh Display BIOS copyright notice
4Fh Initialize MultiBoot
50h Display processor type and speed
52h Test keyboard
54h Set key click if enabled
55h Enable USB devices
58h 2-2-3-1 Test for unexpected interrupts
59h Initialize POST display service
5Ah Display prompt “Press F2 to enter SETUP”
5Bh Disable processor cache
5Ch Test RAM between 512 and 640 kb
60h Test extended memory
62h Test extended memory address lines
64h Jump to UserPatch 1
66h Configure advanced cache registers
67h Initialize multiprocessor APIC
68h Enable external and processor caches
69h Setup System Management Mode (SMM) area
6Ah Display external L2 cache size
6Bh Load custom defaults (optional)
6Ch Display shadow-area message
6Eh Display possible high address for UMB recovery
70h Display error messages
72h Check for configuration errors
76h Check for keyboard errors
7Ch Set up hardware interrupt vectors
7Dh Initialize intelligent system monitoring
7Eh Initialize coprocessor if present
80h Disable onboard SuperI/O ports and IRQs
81h Late POST device initialization
82h Detect and install external RS232 ports
83h Configure non-MCD IDE controllers
Test
Point
Beep
Code
POST Routine Description
* If the BIOS detects error 2C or 2E, 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.
8507328.book Page 90 Thursday, February 15, 2001 11:28 AM