VOGONS


First post, by ZeroSystem

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My son and I have been working on a 386 we found awhile back and got it up and running again! Our main issue was trying to get a CF adapter to be recognized by the OS to replace the HDD, which we were unsuccessful in doing. Ended up getting an old HDD off ebay that works great, however the OS it came with is in German.. Eventually got a copy of DOS in English on there so it's something we can actually use now. I was curious about exactly which motherboard this computer had, and since I had good luck finding out the MB for the 8088 in an earlier post, I thought I'd try using Retro Tech website to find out as was previously recommended on another thread.

I believe I have found a match: https://theretroweb.com/motherboards/s/askey-12201

I noticed however it states that the battery is a problem and should be replaced. My MB certainly seems to have said battery but I do not know how to go about removing/replacing it safely and would appreciate any help! I have attached a couple of pictures of the 386 MB we are working on just to compare with the link since I'm not 100% sure it's the same motherboard.

Reply 1 of 6, by ZeroSystem

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I forgot to mention that I also got some RAM for this computer and was hoping to find a user manual on how to install the RAM correctly but was unable to find it (assuming the board I found on Retro Tech is the correct one) Does anyone have suggestions on where I can find information on installing RAM for this system? I've never installed anything like these before and I'm worried about messing up something after we've spent so long getting this pc running again.

Reply 2 of 6, by Yoghoo

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Just cut the 2 legs from the battery with a wire cutter or scissors. There seems to be an external battery connector next to the bios which you can use.

Motherboard has SIPP memory slots. Not easy/cheap to get. But I saw in the past Ebay has them sometimes. But you can also solder pins to regular 30 pin memory modules to make them SIPP compatible but I guess that's not an option for you. 😀

Reply 3 of 6, by ZeroSystem

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Using wire cutters was the first thing that came to mind, but I was worried I might damage something in the process. If that is the best route to go though that works for me!

I did not notice the RAM on the motherboard being SIPP memory slots. That is certainly not what I have on the 386 I've been working on. I have km41c1000ap-8 DRAM IC's currently installed, and I have several more IC's that I could install as well, but I wasn't sure about parity or any other details as to their installation.

I'll have to keep searching Retro Web for the MB we have, as the one I linked to previously must not be correct.

Reply 4 of 6, by keenmaster486

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ZeroSystem wrote on 2025-07-11, 18:18:

I did not notice the RAM on the motherboard being SIPP memory slots. That is certainly not what I have on the 386 I've been working on. I have km41c1000ap-8 DRAM IC's currently installed

It probably supports both. ICs for the base RAM and SIPPs for >1MB.

World's foremost 486 enjoyer.

Reply 5 of 6, by ZeroSystem

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keenmaster486 wrote on 2025-07-11, 18:56:
ZeroSystem wrote on 2025-07-11, 18:18:

I did not notice the RAM on the motherboard being SIPP memory slots. That is certainly not what I have on the 386 I've been working on. I have km41c1000ap-8 DRAM IC's currently installed

It probably supports both. ICs for the base RAM and SIPPs for >1MB.

Does this mean that adding the additional DRAM that I have to the remaining empty slots probably wouldn't work? I tried to get the exact same IC's as what is already installed. However I only have enough to fill most, not all, of the empty slots. I wouldn't want to have to try to track down these expensive and hard to find SIPP memory and I certainly don't have the skills yet to make the modifications Yoghoo mentioned.. hopefully someday! 😁 I suppose it's not exactly necessary anyways, I just liked the idea of trying to maximize this PC as much as possible now that we got it working again!

Sorry for all the newbie questions everyone, I really do appreciate all the help.

Reply 6 of 6, by jakethompson1

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ZeroSystem wrote on 2025-07-12, 03:37:
keenmaster486 wrote on 2025-07-11, 18:56:
ZeroSystem wrote on 2025-07-11, 18:18:

I did not notice the RAM on the motherboard being SIPP memory slots. That is certainly not what I have on the 386 I've been working on. I have km41c1000ap-8 DRAM IC's currently installed

It probably supports both. ICs for the base RAM and SIPPs for >1MB.

Does this mean that adding the additional DRAM that I have to the remaining empty slots probably wouldn't work? I tried to get the exact same IC's as what is already installed. However I only have enough to fill most, not all, of the empty slots. I wouldn't want to have to try to track down these expensive and hard to find SIPP memory and I certainly don't have the skills yet to make the modifications Yoghoo mentioned.. hopefully someday! 😁 I suppose it's not exactly necessary anyways, I just liked the idea of trying to maximize this PC as much as possible now that we got it working again!

Sorry for all the newbie questions everyone, I really do appreciate all the help.

It should have 2MB now, and if you fill the rest of the DIP sockets, would have 4MB.
Each chip is only 1 bit wide, and a bank on a 386SX is 16 bits plus 2 parity bits. So it's unfortunately all-or-nothing. All 18 sockets must be filled and all the chips must work or you will still see only the 2MB.