840av ROM chip?

[zackl]

I am cobbling together an 840av from parts found here and there (thank you LuckyBob for his case / power supply etc!) and managed to track down a motherboard on EBAY.

It was sold in "working condition" but there is a good amount of cap goo on the board and I noticed that it has a slot I hadn't seen before on the 840av motherboard - image attached - is this the infamous ROM slot from the early boards?

 

[dougg3]

I know we already talked on PM and you've already seen my post, but just wanted to post this here for future reference.

I happened upon the ROM SIMM you're looking for on eBay and posted about it here.

That socket you have circled is indeed the ROM SIMM socket, and I believe the unpopulated pads for the two chips below it are where the motherboard ROM would have gone. I'm just going to save some of the determined pinouts and sizes/shapes from the SIMM for future reference and then I'd be thrilled to send it to a good home where it will be used!

 

[zackl]

That's awesome - thank you so much for taking good care of it! I'll report back to forum if this brings the 840 to life again! - Z