Gateway 7450R User Manual
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
Point
Beep
Code
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.
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