I took a couple of photos of the errors

Did you try the following?
1) changing the memory
2) changing the cache
3) disabling L2 cache in the BIOS
4) disabling parity check in the BIOS

feipoa wrote:

Did you try the following? 1) changing the memory 2) changing the cache 3) disabling L2 cache in the BIOS 4) disabling parity ch […]
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Did you try the following?
1) changing the memory
2) changing the cache
3) disabling L2 cache in the BIOS
4) disabling parity check in the BIOS

1. Yes I tried changing the memory, it will only start to POST if 8mb of RAM is installed
2. The motherboard has no cache
3. The motherboard has no cache
4. Disabling the parity check does it further but it will lock up right after POST

I am pretty sure the problem is the missing BIOS. I finally received the ROM programmer in the mail and tried those 2 BIOS ROMs you uploaded, unfortunately it won't even start to POST. I think the motherboard I have is not compatible with that BIOS. Do you have any other BIOSes that might work? I can't seem to find any on the internet.

I have uploaded the EVEN BIOS that was in the motherboard if that might help at all.

That's the only BIOS I have. For this reason, I created this thread.

feipoa wrote:

That's the only BIOS I have. For this reason, I created this thread.

Thanks anyway, I guess I will keep looking...

There's no point to look for more ROMs. In EVEN/ODD setups, one ROM contains all the even bits, and the other all the odd bits. If one ROM were removed, half the information would be missing and the system would not turn on.

I would check the board for any trace damage, and clean the pins of all the memory sockets.
I think on earlier 386 boards it's harder to swap ROMs because of custom programming in the keyboard controllers. I have an SiS Rabbit based board that won't take images from other Rabbit boards.

I think you are right, the "EVEN" BIOS contains both EVEN and ODD, 32kb then 32kb. I am assuming the other slot is for separating the BIOS into two seperate ROMs instead of combining them into one 64kb.

I am just about to give up on this board, it was manufactured by Lindata Corp and there is no information for it online at all.

There's some corrosion near the keyboard port. I would double check that everything is okay and clean it up better.

It turns out the problem was due to the RAM being non-parity and requiring special BIOS settings to work.

I have now added new RAM and it works fine.

Anonymous Coward, do you think I can use his single EVEN BIOS on my Baby Screamer? Or would this slow the system down? What is the advantage to EVEN and ODD BIOSes? Is it simply to increase storage space, or is it for increased speed via parallel access?

turtlesedge, could you share a screenshot of your BIOS chipset (RAM/cache/clk) settings?

feipoa wrote:

Anonymous Coward, do you think I can use his single EVEN BIOS on my Baby Screamer? Or would this slow the system down? What is the advantage to EVEN and ODD BIOSes? Is it simply to increase storage space, or is it for increased speed via parallel access?

turtlesedge, could you share a screenshot of your BIOS chipset (RAM/cache/clk) settings?

Hey feipoa, sorry for the delay. Here are the BIOS settings:

Using that single BIOS image in your EVEN/ODD board should work, provided your motherboard has a jumper to change the chip density.

Software that makes calls to the BIOS would be slowed down somewhat, but in practice hardly any software does. Most of the time people shadow their BIOS anyway, which negates this issue altogether.

turtlesedge, Is there some up/down pages missing to those CMOS settings? Or are there really no adjustments for the memory and cache wait states?

feipoa wrote:

turtlesedge, Is there some up/down pages missing to those CMOS settings? Or are there really no adjustments for the memory and cache wait states?

No up/down pages, what is in the image is what is there.

The motherboard doesn't have any cache, strange for a 386 DX-33?

Certainly less common to have missing cache on a 386 DX board, but I do see them on eBay, but are no means the majority. It is often the smaller boards.