Can I use PC100 memory in a 66Mhz motherboard?

[cascades]

I currently have a 64MB DIMM in my P266 PC. I want to increase the memory in this machine to 256MB, but the only memory I can find are PC100 DIMMs

Will this memory work in this motherboard?

 

[teknikal]

The DIMMS might not fit into the motherboard on a P266 machine. I believe there are fewer pins on older SDRAM DIMMS. However, if the amount of pins does match up, then it would be safe. You just can't use slower memory in a faster environment.

tek

 

[cascades]

The DIMM sockets on this machine are 168 pin, so the PC100 DIMM's will fit.. just didn't know if they would work..
Thanks...

 

[Laffalot]

Hi,

I would say it depended on your refresh rates. It is possible that your PC100 has a faster refresh rate.
Ypu can end up with problems if the memory refresh rates don't match.

Any Help, Yes/No let me know

Regards

________________________________________
Is not a fool a wise man in his own eyes - Proverbs

 

[teknikal]

Higher bandwidth memory works perfectly fine in slower systems. The only concern you should ever have is to make sure that you don't force slower memory to work with a faster bus. In a sense, faster memory is backward compatible given that it's the same design.

In this case, the memory will default to the slower speed and shouldn't give you any problems.

 

[edito]

Teknikal is right. It will work like a champ. It won't work as fast as it could, but I ran PC100 in a PII 300 with a 66mghtz bus for a long time (and it's still running) and had zero problems.

 

[bujin]

Same here,

I've got 128Mb of PC100 in a P200MMX computer and it runs fine.