Another Egyptian Enterprise 64

stephen_usher · Post by **stephen_usher** » Mon Sep 21, 2026 8:13 pm

If it's detecting 512K but then saying that it's bad suggests a data line issue rather than an address line, which is what's on EXP2. Well, it could be the SRAM chip being faulty as well I s'pose.

I had a different design of RAM board.

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P.S. Do I see a dry joint one one of the header pins on your board?

Post by **PhilC** » Mon Sep 21, 2026 8:46 pm

@rubber_jonnie yes that's the rom chip I meant. Do check that I put the ram chip in the socket correctly

and not impossible the ram chip is bad. It's new old stock from China so never know.

Post by **rubber_jonnie** » Mon Sep 21, 2026 9:45 pm

PhilC wrote: Mon Sep 21, 2026 8:46 pm @rubber_jonnie yes that's the rom chip I meant. Do check that I put the ram chip in the socket correctly and not impossible the ram chip is bad. It's new old stock from China so never know.

Well that's the ROM taken care of at least.

The RAM was correctly inserted BTW, will see if I can find a similar RAM ic, do a cross check.

stephen_usher · Post by **stephen_usher** » Mon Sep 21, 2026 10:14 pm

With respect to the ROM...

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Another Egyptian Enterprise 64

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