17 post code technical description – Endura RADISYS KP915GV User Manual

Page 102

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KP915GV Product Manual

102

Item

SMBIOS Data

Expected Result

23

Type 127: End-of-

Table

4.17

Post Code Technical Description

POST Code

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.

01h

Expand the Xgroup codes locating in physical address 1000:0

03h

Initial Superio_Early_Init switch.

05h

1. Blank out screen
2. Clear CMOS error flag

07h

1. Clear 8042 interface
2. Initialize 8042 self-test

08h

Enable keyboard interface.

0Ah

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

0Eh

Test F000h segment shadow to see whether it is R/W-able or not. If test fails,
keep beeping the speaker.

10h

Auto detect flash type to load appropriate flash R/W codes into the run time
area in F000 for ESCD & DMI support.

12h

Use walking 1’s algorithm to check out interface in CMOS circuitry. Also set
real-time clock power status, and then check for override.

14h

Program chipset default values into chipset.

16h

Initial Early_Init_Onboard_Generator switch.

18h

Detect CPU information including brand, SMI type and CPU level.

1Bh

Initial interrupts vector table. If no special specified, all H/W interrupts are
directed to SPURIOUS_INT_HDLR & S/W interrupts to
SPURIOUS_soft_HDLR.

1Dh

Initial EARLY_PM_INIT switch.

1Fh

Load keyboard matrix (notebook platform)

21h

HPM initialization (notebook platform)

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