Reply 40 of 72, by snufkin
dionb wrote on 2022-12-03, 15:16:
According to spec, i430NX does NOT support 128MB SIMMs - it supports max 256MB, but that's using a lot more than two SIMMs.
Hmm, something odd in the manual ( https://theretroweb.com/motherboard/manual/cm … 5e926995047.pdf ). Page 59 agrees with you and lists 32MB as the maximum per stick, but page 52 gives a 384MB maximum by using 6 @ 64MB. Also, RetroWeb's entry for the 82434NX ( https://theretroweb.com/chipsets/1357 ) gives 512MB as the maximum, using 128MB FPM. It also says the cache can be either async or pipelined burst. That seems to agree with the datasheet for the 82434NX ( https://datasheetspdf.com/pdf-file/45336/Inte … ation/82434NX/1 ). Datasheet actually says SIMMs of 16M x 36bit, which only makes 64MB, but I think that's for a single bank, so 2 banks (think that sometimes gets called double sided) would be 128MB. Looks like maybe the LX is only 32MB?
I might be misinterpreting something though, so please point out if I've gone wrong.
Sphere478 wrote on 2022-12-03, 18:12:
-Install the second socket.
Yeah, still think it'd be better to get everything else checked out first. But if you get to this bit then one thing that will probably need to happen is swapping the 82378 for an 82379 for multi-processor support. Plus other 430NX MP boards that maybe have BIOSes to experiment with: https://theretroweb.com/motherboards/?showIma … &chipsetId=1357