Reply 41 of 385, by keropi
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^ better try as 27C512 and see if you get duplicate data (2x32kb data)
Reply 42 of 385, by Anonymous Coward
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In my experience, almost all 386 BIOSes that use a single chip are the 512kbit variety.
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Reply 43 of 385, by feipoa
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And 256kbit was largely for VGA ROM's?
Plan your life wisely, you'll be dead before you know it.
Reply 44 of 385, by Anonymous Coward
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yup
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Reply 45 of 385, by appiah4
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Just dropping these two MR BIOS manuals here, I harvested them from the eSolutions web site; still poking and trying to find a way to get to the BIOS files 😎
I have a board from 1991 with the MR BIOS on it, would anyone wager a guess as to what the HDD size limitation would be? I'll get a CF card of the according size. I'm thinking of playing it safe and going with 512MB which should be plenty enough for a DX2-66.. But if I can get away with 1 or 2GB, why not?
Retronautics: A digital gallery of my retro computers, hardware and projects.
Reply 46 of 385, by clh333
I have a generic VLB board with a SiS 85C471 chip set . Can anyone say with certainty which of the indexed BIOSes fetaure that chip set?
Thanks for your replies.
-CH-
Reply 47 of 385, by feipoa
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512 MB ok for your DX2-66 system? I need at least 2 GB. I use SCSI so the onboard BIOS limit is unimportant.
Plan your life wisely, you'll be dead before you know it.
Reply 48 of 385, by Anonymous Coward
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wrote:I am going to build a system with this board sometime in the near future, I will try to dump the bios with uniflash.. […]
I am going to build a system with this board sometime in the near future, I will try to dump the bios with uniflash..
For now, please see attached the copies I found of the latest and large HDD patched Mr BIOS bioses.
This board is supposedly based on Headland HT 340 "SHASTA" or possibly Opti 82C802G . Can you confirm which?
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Reply 49 of 385, by keropi
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and why use uniflash for this? if the board runs then NSSI is better to make a BIOS dump
Reply 50 of 385, by feipoa
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Do you know what the benefits of NSSI copying a BIOS is compared to Uniflash?
Plan your life wisely, you'll be dead before you know it.
Reply 51 of 385, by keropi
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not having to remove the IC and inserting it to a NIC to do the job?
Reply 52 of 385, by feipoa
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Doesn't uniflash work with most PC BIOSes in the computer?
Plan your life wisely, you'll be dead before you know it.
Reply 53 of 385, by appiah4
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wrote:wrote:I am going to build a system with this board sometime in the near future, I will try to dump the bios with uniflash.. […]
I am going to build a system with this board sometime in the near future, I will try to dump the bios with uniflash..
For now, please see attached the copies I found of the latest and large HDD patched Mr BIOS bioses.
This board is supposedly based on Headland HT 340 "SHASTA" or possibly Opti 82C802G . Can you confirm which?
It has the Headland chipset.
Retronautics: A digital gallery of my retro computers, hardware and projects.
Reply 54 of 385, by Anonymous Coward
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Were there other 486 boards that used the HT340 chipset? Do they work with EDRAM as well?
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Reply 55 of 385, by appiah4
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wrote:Were there other 486 boards that used the HT340 chipset? Do they work with EDRAM as well?
This I do not know I only have experience with this one board.
Retronautics: A digital gallery of my retro computers, hardware and projects.
Reply 56 of 385, by Auzner
Here's the correct binary for the Forex 300 MR BIOS as a 27C512 (64kB as opposed to the 16kB)
Just recently I got several other motherboards so I ordered a USB programmer.
Motherboard photo:
download/file.php?id=42321&mode=view
Reply 57 of 385, by keropi
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thanks for the update Auzner - I'll fix my post with the new dump 😀
Reply 58 of 385, by Anonymous Coward
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I think I finally tracked down the BIOS image for Macronix 305/306. It's for the Octek Jaguar V. It came from a Russian Hardware Museum site.
http://hwmuseum.pp.ua/index.php?route=hardware&dev=3
I think this image is actually floating around as an attachment on vogons somewhere, but it hasn't been added yet.
"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium
Reply 59 of 385, by keropi
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thanks Anonymous Coward , added the BIOS image in the 2nd post list