Help with identifying mobo

[wrecksan]

Hi all, apologies for my ignorance but I was wondering if it is possible to identify via these 2 (awkward) pictures, if I have the type of motherboard that can be upgraded to 4mb ram or not.

I know the pics are horrible, but I'm a bit reluctant to pull the entire thing apart without knowing much about it.

Thanks for your help!

QXpVdhP.jpeg (267.23 KiB) Viewed 1568 times

Xrc4V1j.jpeg (268.6 KiB) Viewed 1568 times

[exxos]

Really need to see the whole board.. There are a LOT of revisions, some similar, some very different.

That actually looks to be 2 totally different motherboards ? CPU under the drive, then CPU not under the drive...

[rubber_jonnie]

It seems to be one of these: https://www.exxosforum.co.uk/forum/viewtopic.php?t=749

You can see C103175 printed on the board in this picture:

Xrc4V1j.jpeg (268.6 KiB) Viewed 1567 times

What you can't tell is the revision, but since you have it part disassembled, removing the top RF shield is quite trivial to do, it's just a few screws and some twist tabs, so you may as well go just a little bit further to see what you have.

[wrecksan]

That actually looks to be 2 totally different motherboards ? CPU under the drive, then CPU not under the drive...

I promise it is the same board, I just tilted the camera left and down a bit.

It seems to be one of these: https://www.exxosforum.co.uk/forum/viewtopic.php?t=749

You can see C103175 printed on the board in this picture:

What you can't tell is the revision, but since you have it part disassembled, removing the top RF shield is quite trivial to do, it's just a few screws and some twist tabs, so you may as well go just a little bit further to see what you have.

That's handy to know, I've actually reassembled this since, I had the board off a while ago when I took the pictures and put it back as the I wasn't allowed to leave an Atari in the middle of the living room

I'll have another look in a few days, as I'm busy/preparing for holiday at the moment.

Thanks so much for the responses and also 10/10 name rubber_jonnie

[rubber_jonnie]

That's handy to know, I've actually reassembled this since, I had the board off a while ago when I took the pictures and put it back as the I wasn't allowed to leave an Atari in the middle of the living room

What, you don't have a room in your house that's dedicated to Ataris?

[wrecksan]

What, you don't have a room in your house that's dedicated to Ataris?

Yet. I don't have a room dedicated to Ataris yet.

[rubber_jonnie]

Yet. I don't have a room dedicated to Ataris yet.

You'd better get on that