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Unknown 286-12 Motherboard

C

Chromedome45

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I bought this board off of ebay and was curious who made it. I seems to
have one large chip made by Chips & technologies. If anyone knows please
let me know.

Thanks, Frank G.
 

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Thanks Chuck for the info and the link. But it appears to be the next one
down. The SIPP version. Now if I can only find a setup disk or do you
think it might be a keyboard combo to enter BIOS? I guess I will find
out when I get it. Again many thanks.
 
Chromedome45 said:
Thanks Chuck for the info and the link. But it appears to be the next one
down. The SIPP version. Now if I can only find a setup disk or do you
think it might be a keyboard combo to enter BIOS? I guess I will find
out when I get it. Again many thanks.
Click to expand...

Going by the looks of the board, I'd say it's a key combo and not a configuration disk you need. Depends upon what BIOS it is.

I just fixed my Octek Rev 5.1 board just uses the Delete Key with it's AMI BIOS

Phoenix/Award = CTRL+ALT+ESC, I've seen a few boards that are 286 with this one
 
Thanks alot for the input guys I really appreciate it. I don't have SIPPS
for the RAM but I do have SIMMS. I will solder pins onto the SIMMS and
make SIPPS out of them. I think it will work because many years ago
they made SIPP to SIMM converters. Just plugged the SIPPS in to the
converter and it worked fine. I will be doing the reverse. I have very
good soldering skills so should not be to hard. I will post pictures
of memory chips after I am done if I don't forget.

I hope to have fun with it. Of all the computers I have had over the years I never
Had a 286 system.

SO just press DEL to get to the BIOS cool that's what I was hoping for.

Again Thanks.
 
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Chromedome45 said:
Thanks alot for the input guys I really appreciate it. I don't have SIPPS for the RAM but I do have SIMMS. I will solder pins onto the SIMMS and make SIPPS out of them. I think it will work because many years ago they made SIPP to SIMM converters. Just plugged the SIPPS in to the converter and it worked fine. I will be doing the reverse. I have very good soldering skills so should not be to hard. I will post pictures of memory chips after I am done if I don't forget
Click to expand...

Indeed--my first batch of SIPPs came from a guy who had a business assembling chips into SIMMs. If you asked him for SIPPs instead, he'd just solder some pins on that had a U-shaped part on one edge. No extra charge.

You may find that it's easiest to simply insert a couple of SIMM sockets into the SIPP ones. That's what I did after awhile. Saves a lot of soldering. A couple of dabs of hot glue will keep them in place.
 
Well here's my first picture of a completed one as promised.
I tried to locates some 30 pin Single in line sockets but didn't
have any luck. So this was the next best thing.
 

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Doesn't that motherboard have onboard memory already in the
Bank 0 and 1 sockets ? Can you use both the onboard memory and the SIPPS?

I have that same board also, but its been awhile since I powered it up.
I bought some SIPPS awhile back on eBay.
 
I could not use both memory at the same time.
Then again, it did not like the initial SIPPs I installed at first so that may not be 100% accurate.

With all 4 SIPP slots occupied it counts to 3712 KB.
 
Does the motherboard work/boot with just the onboard memory chips ?

Looking at the dram configuration chart for that board, it should go up to 1Mb
without populating the SIPP sockets, which should be enough to run most
anything on a 286.
 
Works fine with the onboard 1 Meg of memory. But I am greedy and I wanted
more.:D Well I might have to try something else. Contrary to what others
have said to enter the BIOS on this board it is Ctrl-Alt-S. Very strange.
But all in all it's a cool board even has a genuine Intel chip. :!:
 
Chromedome45 said:
Well it did not work out. :confused: The pins are a tad to thick. May have to try Chuck's idea and buy some simm sockets.
Click to expand...

When I made my own SIPPs from SIMMs, I found that copper wire thin enough to go into machine-pin sockets was too soft. I ended up using bronze music wire that I happened to have around. I know there used to be made-for-the purpose solder-on clips for this, but I haven't seen any in perhaps 20 years.
 
Keep an eye on that blue battery... the one on mine leaked
acid on the board. Didn't cause any permanent damage though.
If its the original battery its probably best to remove it and
substitute a battery pack with AA batteries.
 
Chuck(G) said:
When I made my own SIPPs from SIMMs, I found that copper wire thin enough to go into machine-pin sockets was too soft. I ended up using bronze music wire that I happened to have around. I know there used to be made-for-the purpose solder-on clips for this, but I haven't seen any in perhaps 20 years.
Click to expand...
I've successfully used fuse wire (15 amp I think).
 
Regarding the blue battery and this board in general it looks brand
new. There are no marks on the bottom of the board where you
would use screws to secure in place. As for the memory I got it
installed by cutting up some old chip sockets the plugging my
SIPPS into them it worked but the board recognized them as
256K chips not 1MEG.:confused: I think the board expects to see 8 or 9
chips on the each SIPP package. I have some 4meg chips with
9 chips and might try them. For now it's working ok at 1 MB Ram.
:smile:

Modem 7. Where might I find fuse wire? Excuse me if I sound retarded
but never heard of it.
 
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