PEAK 637 User‘s Guide
BIOS Setup 3-
23
0A
1. Initialize the first 32 interrupt vectors with corresponding Interrupt handlers
Initialize INT no from 33-120 with Dummy(Suprious)
Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM specific)
This POST code is for boot block
POST (hex)
Description
C0
1. Turn off OEM specific cache, shadow...
2. Initialize all the standard devices with default values standard devices
includes:
-DMA controller (8237)
-Programmable Interrupt Controller (8259)
-Programmable Interval Timer (8254)
-RTC chip
C1
Auto-detection of onboard DRAM & Cache
C3
Checking checksum of compressed code
C5
Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that POST will go faster
01
Clear base memory 0~640K
0C
Initial interrupt vector 00-1FH
0D
Initial ISA VGA
41H
Enable FDD and detect media type
FFH
Boot from FDD
BIOS Default Drive Table
This is a current list of the drive type table contained in Setup.
Type Size
(MB)
Cylinders Heads Sectors Write
Precomp
Land
Zone
Example Model
1 10
306 4 17 128
305
TEAC
SD510,
MMI 112, 5412
2
20
615
4
17
300
615
Seagate ST225, ST4026
3 30
615 6 17 300
615
4 62
940 8 17 512
940
5 46
940 6 17 512
940
6 20
615 4 17 None
615
Seagate
ST125,
Tandon TM262
7 30
462 8 17 256
511
8
30
733
5
17
None
733
Tandon TM 703
9 112
900 15 17 None
901
10 20 820 3
17
None
820
11 35 855 5
17
None
855
12 49 855 7
17
None
855
13
20
306
8
17
128
319
Disctron 526, MMI M125
14 42 733 7
17
None
733
15
Reserved
16 20 612 4
17
0
663 Microscience
HH725,
Syquest 3250, 3425
17 40 977 5
17
300 977
18 56 977 7
17
None
977
19 59 1024 7
17
512 1023
20 30 733 5
17
300 732
