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plugh
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Joined: 22 Mar 2007
Posts: 2
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 Posted: Thu Mar 22, 2007 10:07 pm
Post subject: Two ROMs - but differant IRQ routing tables? |
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I want to upgrade the disk in an old FIC "sabre" (P3 i815E) system I have. It appears the BIOS doesn't support LBA48. Went to the fic site, and the only bios they show ("WD602") is what I'm currently running.
But...
In my archives, I have both the "WD602" and also a "WD603" ROM image. I have a vague recollection that I downloaded this from the *USA* FIC site - which no longer exists (www.fica.com now redirects to www.fic.com.tw).
Hmmm...
I analyzed both ROMs with AMIBCP 7.5, and the results make me think that this truly is a later version of the bios for my system EXCEPT:
-->the IRQ routing tables don't match
WD602 | Code: |
INT Pin A INT Pin B INT Pin C INT Pin D
Bus# Device# Reg# BitMap Reg# BitMap Reg# BitMap Reg# BitMap Slot
00h 08h 60h DEB8h 61h DEB8h 00h DEB8h 00h DEB8h 00h
00h 10h 60h DEB8h 00h 0000h 00h 0000h 00h 0000h 00h
00h F8h FEh 4000h 61h DEB8h 6Bh DEB8h 63h DEB8h 00h
01h 18h 61h 5EF0h 62h 5EF0h 63h 5EF0h 60h 5EF0h 01h
01h 20h 61h 5EF0h 62h 5EF0h 63h 5EF0h 60h 5EF0h 02h
01h 28h 61h 5EF0h 62h 5EF0h 63h 5EF0h 60h 5EF0h 03h
01h 10h 60h 5EF0h 61h 5EF0h 00h 0000h 00h 0000h 00h
01h 40h 68h 5EF0h 00h 0000h 00h 0000h 00h 0000h 00h
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WD603 | Code: |
INT Pin A INT Pin B INT Pin C INT Pin D
Bus# Device# Reg# BitMap Reg# BitMap Reg# BitMap Reg# BitMap Slot
00h 08h 60h DEB8h 61h DEB8h 00h DEB8h 00h DEB8h 00h
00h 10h 60h DEB8h 00h 0000h 00h 0000h 00h 0000h 00h
00h F8h FEh 4000h 61h DEB8h 6Bh DEB8h 63h DEB8h 00h
01h 18h 61h 5EF0h 62h 5EF0h 63h 5EF0h 60h 5EF0h 01h
01h 20h 62h 5EF0h 63h 5EF0h 60h 5EF0h 61h 5EF0h 02h
01h 28h 63h 5EF0h 60h 5EF0h 61h 5EF0h 62h 5EF0h 03h
01h 10h 60h 5EF0h 61h 5EF0h 00h 0000h 00h 0000h 00h
01h 40h 68h 5EF0h 00h 0000h 00h 0000h 00h 0000h 00h
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You will note that the entries for PCI slots 2 and 3 are differant.
IMO the entries for slots 2 and 3 look more correct/typical in the wd603 image than the wd602 image. Perhaps they corrected an error? I have not had any problems with PCI boards in the system - but perhaps I've just been lucky?
I'm stumped...
Just about everything else about this rom looks "right" to me - it's got the same modules (but slightly differant sizes), almost identical setups for 'hidden' and 'visible' options (most setup options hidden), almost identical 'failsafe' and 'optimal' defaults, the dates make sense (wd602=05/25/01 wd603=03/12/02), there is even an internal 'bios tag' that makes sense (WD602 rom tag = "WD6023" WD603 rom tag = "WD6026").
Since I have no readme or anything that documents these images, I'm left with two questions:
1) Is there any way to tell if "wd603.rom" has AMI's LBA48 support? (The "Int-13" modules is the same size in both ROMs - is that where the support would be?)
2) Is there any way to tell which IRQ routing table is "right"? (The system has a PCI riser card - can I meter the slot INT pins and see?)
Thanks in advance...
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plugh
New visitors - please read the rules.
Joined: 22 Mar 2007
Posts: 2
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| Posted: Fri Mar 23, 2007 1:05 pm
Post subject: |
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Well I'll be...
Pulled the riser card, metered the PCI pins...
The INT lines ARE 'rotated' amongst the slots.
So it appears the Routing table in my current 'wd602' bios is not correct, and the table in the 'wd603' bios is!
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cp
BIOS Guru
Joined: 21 Oct 2002
Posts: 1451
Location: Germany
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| Posted: Fri Mar 23, 2007 5:09 pm
Post subject: |
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| what do you need lba48 support for? does the bios crash when you autodetect a hdd larger than 128GB?
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