dimm woes

[Merk]

Hi all, here's my prob:
my sister wanted to upgrade the ram on her p233 cyrix pc. The motherboard is based on a tx chipset and has two 72 pin slots and two 168 pin slots. The cheap taiwanese mobo manual is pretty useless and i'm not familiar with the tx chipset. She already has a 32mb dimm installed. I got her another 64mb pc100 dimm and put it in (making 96mb). It was not detected and i got all sorts of strange errors, windows redetecting things, etc. I took the 64meg dimm out and all was okay again. I put the 64meg in by itself and the pc would post. I thought that pc100 would work in place of pc66. am i wrong can anyone help??

I put the dimm in my pc (bx mobo)and it was detected but i got all sorts of memory related errors. is it the dimm??

any help would be greatly appreciated
thanks,
merk

[Raider]

If it is an old Motherboard there is a chance that it the slot voltage of the DIMM is actually 5 volts. When DIMM's started to appear on boards there was a 3.3 volts and a 5 volts standard.

You may have the the board set to the wrong standard. Check your manual for a jumper to set the DIMM voltage down to 3.3 volts.

However, you may have already fried the DIMM by pumping 5 volts through it if this is the case.

[Merk]

I didn't fry the dimm, it still works. Is there any way to find out if its 3.3 or 5??

[jokostel]

if its sdram its 3.3v

[Merk]

are there different types of dimms? I read in a badly written taiwanese manual that there were edo dimms. do they exist??