Hardware Talk :: Upgrading RAM in a computer

This motherboard will only accept 128Mb of RAM (SIMM or DIMM, but not both). With 4 SIMM slots, it will only recognize 32MB in each. SIMMs always have to be paired. DIMMs, on the other hand, do not. If you got 2 64MB DIMM modules, then you could use them to run 128MB; otherwise, with only 2 SIMM modules, you can only run 64MB. You may want to see if there is a BIOS update for this mobo that will allow it to read more memory, but it is very doubtful.

I have this problem right now with a stick of sdram (256 133) only shows up as 128, it is actually to do with the ram itself, how many chips are on the stick, if u are having problems where u only get half the ram, check to see if there are chips on both sides of the simms, if not your MB might only recognize the maximum amount it can read from 1 chip, in my example it is 16Mb per chip, 16*8=128 (when the chips are really each 32Mb. to fix this ( as i can actually have 256 in 1 slot ) by having 8 chips on each side, 16 total of 16 each. I hope this helps u out, u may have to get different ram unfortunatly.

original here.