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7 Tests and Error Messages
Order in Which POST Tests Are Performed
0Ah
Initialize CPU registers
0Bh
Enable CPU cache
0Ch
Initialize caches to initial POST values
0Eh
Initialize I/O component
0Fh
Initialize the local bus IDE
10h
Initialize Power Management
11h
Load alternate registers with initial POST values
12h
Restore CPU control word during warm boot
13h
Initialize PCI Bus Mastering devices
14h
Initialize keyboard controller
16h
BIOS ROM checksum
17h
Initialize cache before memory autosize
18h
8254 timer initialization
1Ah
8237 DMA controller initialization
1Ch
Reset Programmable Interrupt Controller
20h
Test RDRAM refresh
22h
Test 8742 keyboard controller
24h
Set ES segment register to 4 GB
26h
Enable A20 line
28h
Autosize RDRAM
3
29h
Initialize POST Memory Manager
2Ah
Clear 512 KB base RAM
2Ch
RAM failure on address line
1
2Eh
RAM failure on data bits
xxxx
1
of low byte of memory bus
2Fh
Enable cache before system BIOS shadow
Checkpoint
Code
POST Routine Description
Beep
Code
Содержание Vectra VL800
Страница 1: ...hp vectra vl800 desktop minitower technical reference manual www hp com go vectrasupport ...
Страница 26: ...26 1 VL800 Desktop Documentation ...
Страница 44: ...44 2 VL800 Minitower Documentation ...
Страница 103: ...103 6 HP BIOS This chapter describes the Setup program and BIOS The POST routines are described in the next chapter ...
Страница 122: ...122 6 HP BIOS BIOS Addresses ...
Страница 138: ...138 7 Tests and Error Messages Error Message Summary ...