VOGONS


First post, by Predator99

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Hi,
does anybody have the BIOS for the Shuttle HOT 555 VER 1.41? I got this board and when powering up it gives me a BIOS ROM Checksum error:

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So the BIOS seems to be corrupted but I am also not sure if this BIOS really belongs to that board. So I tried to get a correct BIOS from here
https://www.shuttle.eu/_archive/older/de/555.htm
Bios-Update 55XWUQ0E (Mainboard HOT-555 V1.4x/V1.5x)

But the board doesnt start with it. I think its the wrong version as the Readme says its not for the 1.41:

AFLH52B 55XWUQ0E.BIN for HOT-555 with UMC I/O Chip
AFLH52B 55XWSQ0F.BIN for HOT-555 with SMC I/O Chip

55XWUQ0E.BIN
This BIOS is for the 557 ver. 1.32 & the 555 ver. 1.52/1.53 & the 559 ver. 1.3
NOT for 557 ver. 1.5 & NOT for 555A ver. 3.0 & NOT for 559 ver. 1.5 !!!

So can anybody upload a working BIOS image for Rev 1.41?

Thank you! 😀

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Reply 2 of 16, by Cga.8086

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this is so crazy,

i got a bunch of boards last week and hot 555 was one of them, i tested it and it worked, just dallas usual battery error.
it also has the UMC chip next to the pci slots. Revision is 1.40 tho, and only has 1 dim socket, (that site mentions it should have 2 dim sockets)

bios is soldered to the board, if you tell me how to make a complete bios backup using any program i might help you when i have free time this weekend.

Reply 5 of 16, by zyga64

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Maybe flash memory is broken ?

I had similar situation in the past.
I've prepared bootdisk floppy with awdflash and bios.bin on it, with only one line in autoexec.bat (flashing command).
Flashing procedure completed succesfully, and everything returned to normal state, well ...for some time.
I've repeated this procedure, and again it helped but only for some time.
After changing flash IC to new one, problems gone for good.

1) VLSI SCAMP /286@20 /4MB /TVGA9000C /CMI8330
2) i420EX /486DX33 /16MB /Trio64V+ /AZT2316
3) i430HX /P233MMX /64MB /VirgeDX+3Dfx /Vibra16s
4) i440BX /P II 400 /256MB /FX5500/AWE64
5) i865G /E5800 /2GB /Ti4200 /YMF724

Reply 6 of 16, by Vynix

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The UMC IO version should be the correct one for this board.

Funny now you mention that, I've got later Rev. of this board (mine's a HOT-555A), could you check if your board works with w95/98 with a P233MMX?

Proud owner of a Shuttle HOT-555A 430VX motherboard and two wonderful retro laptops, namely a Compaq Armada 1700 [nonfunctional] and a HP Omnibook XE3-GC [fully working :p]

Reply 8 of 16, by Vynix

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Hmm that's really bizarre because on mine, whenever I put a P233 in it, the board starts behaving unusually (needs to be hard rebooted, hangs randomly, Windows does not even start and sometimes, I get data corruption bugs), everything goes to normal when I put back my 133MHz Pentium.

I don't have any other 233MHz chip nor any other So7 mobo to test so I can't really see if I got a dud P233 or that my board is flaky.

Guess I should nab a K6 to rule out a faulty board.

Proud owner of a Shuttle HOT-555A 430VX motherboard and two wonderful retro laptops, namely a Compaq Armada 1700 [nonfunctional] and a HP Omnibook XE3-GC [fully working :p]

Reply 10 of 16, by Vynix

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Tried that, same problem. I even put a small fan blowing on the VRMs, still no dice.

I even had set the multiplier jumpers to run the P233 at a lower clockspeed, it only further worsened the problems.

Proud owner of a Shuttle HOT-555A 430VX motherboard and two wonderful retro laptops, namely a Compaq Armada 1700 [nonfunctional] and a HP Omnibook XE3-GC [fully working :p]

Reply 12 of 16, by Vynix

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Yeah I think it is. Drat, I really don't know what to do, besides finding another one to rule out this board.

Proud owner of a Shuttle HOT-555A 430VX motherboard and two wonderful retro laptops, namely a Compaq Armada 1700 [nonfunctional] and a HP Omnibook XE3-GC [fully working :p]

Reply 13 of 16, by Predator99

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Oh, I see that discussion is related to my post from 2017 and nobody replied so far 😁

As far as I remember I didnt solve the problem and I still should have the board somewhere (but I will not start searching for it at the moment).

My EPROM is OK, I read it with an external programmer and removed part of the label to verify the type.

So if somebody could upload a working ROM for that version I would be very happy and will test it the next time this board comes across my hands...

Reply 15 of 16, by Cga.8086

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@predator99

here you go
hope it helps

http://www.mediafire.com/file/v7yuz7ohn7vcq8d … 55_140.zip/file

this is suttle hot 555 , motherboard revision 1.40 bios backup made with uniflash 1.4

zip includes bios, and also made a bootblock backup .boo from the advanced menu of uniflash

weird program by the way you just choose to make the backup and there is no actual confirmation message that it has been completed.

Reply 16 of 16, by Predator99

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Thank you very much! I upload a copy here, I assume it will take some time until I have my board in my hands again to test...

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