Subject: was re: PC164 won't boot NOW: SROM initialization post codes (LONG)
To: None <firstname.lastname@example.org>
From: Chris Price <email@example.com>
Date: 03/25/2002 21:26:49
Thanks for all your replies so far. Here's most of my original
> > Just inherited a PC164 barebones system from someones storeroom.
> > According to the guy I got the system from, 'It was working when it
> > was put away'. Unfortunately the system gives 6 beeps at boot time, and
> > never seems to intialize its video card/display (PCI Diamond Stealth
> > 2000).
So tonight I got a serial connection to the SROM debug port (J31).
Here's what I see when I turn the system on;
if I am reading this correctly, the boot sequence is buggering up with
a '3f' code right after post code 15. I found a great doc that details
here's the summary;
00 Firmware initialization is complete
01 CPU speed detected
02 CPU speed converted
03 Configuration jumpers read
04 Bcache configuration value computed
05 Bcache control value computed
06 Bcache turned off
07 Memory timing registers written
08 Memory control register written
09 Memory bank 0 register written
0B DRAMs awakened
0C Memory sized and memory bank 0 written
0F Bcache turned on
13 All of memory rewritten (good data parity written)
14 Memory errors cleared; start reading system ROM
15 Loading ROM without SROM decompression
16 Loading ROM using SROM decompression
17 System ROM loaded to memory
18 Icache flush code written to memory
19 CPU errors cleared; jump to system code
20 ISA bus reset
Given that this machine sat idle for about a year, I am beginning to
think that its system rom might be dead.
Does anyone know how to go about loading the system ROM back
into memory? I've found various documents that refer to a program called
xload.exe, but am not sure.
Any help you might provide is greatly appreciated.