It would help to have a clear pic of the whole motherboard from straight above. Only the middle pic here is in focus and good enough to make out jumpers.

Best I can do with these pics is suspect the Shuttle HOT-409: https://theretroweb.com/motherboards/s/shuttl … hot-409-ver-1.x ; JP7 and JP9 seem to match, can't judge anything else.

Was that one of the boards you already found? If not, which others did you find and how?

dionb wrote on 2025-10-27, 22:30:

It would help to have a clear pic of the whole motherboard from straight above. Only the middle pic here is in focus and good enough to make out jumpers.

Best I can do with these pics is suspect the Shuttle HOT-409: https://theretroweb.com/motherboards/s/shuttl … hot-409-ver-1.x ; JP7 and JP9 seem to match, can't judge anything else.

Was that one of the boards you already found? If not, which others did you find and how?

I will do best pictures later. The picture 5mb limit give me trouble with my new phone that cant take picture below 12megapixel. i have to edited my picture and they become tiny at 5mb 🤣.

i found this:

https://theretroweb.com/motherboards/s/dataex … opti-495sx#docs

and this:

https://theretroweb.com/motherboards/s/dataex … x-3-486wb-cache

I will check your link right now

EDIT: your link seems good, i think its exactly this motherboard. i will let you know thanks a lot

This is where i repaired, the battery leaks a lot. everything works with the 486 sx 33. Now i try to move the jumper for the 486 dx 33 and let you know if it works 😀

( keyboard connector was glued with epoxy )
( new battery )
( some lines were bad and a resistor )

renejr902 wrote on 2025-10-27, 22:43:

I will do best pictures later. The picture 5mb limit give me trouble with my new phone that cant take picture below 12megapixel. […]
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dionb wrote on 2025-10-27, 22:30:

It would help to have a clear pic of the whole motherboard from straight above. Only the middle pic here is in focus and good enough to make out jumpers.

Best I can do with these pics is suspect the Shuttle HOT-409: https://theretroweb.com/motherboards/s/shuttl … hot-409-ver-1.x ; JP7 and JP9 seem to match, can't judge anything else.

Was that one of the boards you already found? If not, which others did you find and how?

I will do best pictures later. The picture 5mb limit give me trouble with my new phone that cant take picture below 12megapixel. i have to edited my picture and they become tiny at 5mb 🤣.

i found this:

https://theretroweb.com/motherboards/s/dataex … opti-495sx#docs

and this:

https://theretroweb.com/motherboards/s/dataex … x-3-486wb-cache

They have a pretty different layout. Same chipset though. Nice boards, I have the second one 😉

I will check your link right now

EDIT: your link seems good, i think its exactly this motherboard. i will let you know thanks a lot

Great - enjoy 😀

dionb wrote on 2025-10-27, 23:12:

They have a pretty different layout. Same chipset though. Nice boards, I have the second one ;) […]
Show full quote

renejr902 wrote on 2025-10-27, 22:43:

I will do best pictures later. The picture 5mb limit give me trouble with my new phone that cant take picture below 12megapixel. […]
Show full quote

dionb wrote on 2025-10-27, 22:30:

It would help to have a clear pic of the whole motherboard from straight above. Only the middle pic here is in focus and good enough to make out jumpers.

Best I can do with these pics is suspect the Shuttle HOT-409: https://theretroweb.com/motherboards/s/shuttl … hot-409-ver-1.x ; JP7 and JP9 seem to match, can't judge anything else.

Was that one of the boards you already found? If not, which others did you find and how?

I will do best pictures later. The picture 5mb limit give me trouble with my new phone that cant take picture below 12megapixel. i have to edited my picture and they become tiny at 5mb 🤣.

i found this:

https://theretroweb.com/motherboards/s/dataex … opti-495sx#docs

and this:

https://theretroweb.com/motherboards/s/dataex … x-3-486wb-cache

They have a pretty different layout. Same chipset though. Nice boards, I have the second one 😉

I will check your link right now

EDIT: your link seems good, i think its exactly this motherboard. i will let you know thanks a lot

Great - enjoy 😀

with the correct jumper the 486 dx-33 works perfect. Thanks a lot. This is a board i keep in my collection, i will play some dos games this evening with it 😀