Post codes – Contec SPI-8450-LLVA User Manual

Page 120

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CHAPTER 8 - BIOS Setup

SPI-8450-LLVA

113

Memory test fail

BIOS reports the memory test fail if the onboard memory is tested error.

8.17. POST Codes

POST

(hex)

Description

CFh

Test CMOS R/W functionality.

C0h

Early chipset initialization:

-Disable shadow RAM

-Disable L2 cache (socket 7 or below)

-Program basic chipset registers

C1h

Detect memory

-Auto-detection of DRAM size, type and ECC.

-Auto-detection of L2 cache (socket 7 or below)

C3h

Expand compressed BIOS code to DRAM

C5h

Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.

0h1

Expand the Xgroup codes locating in physical address 1000:0

02h

Reserved

03h

Initial Superio_Early_Init switch.

04h

Reserved

05h

1. Blank out screen

2. Clear CMOS error flag

06h

Reserved

07h

1. Clear 8042 interface

2. Initialize 8042 self-test

08h

1. Test special keyboard controller for Winbond 977 series Super I/O chips.

2. Enable keyboard interface.

09h

Reserved

0Ah

1. Disable PS/2 mouse interface (optional).

2. Auto detect ports for keyboard & mouse followed by a port & interface swap (optional).

3. Reset keyboard for Winbond 977 series Super I/O chips.

0Bh

Reserved

0Ch

Reserved

0Dh

Reserved

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