Thinkpads Forum

Do appreciate all your help, I feel so ignorant, but know I am playing outside the lines and need to know things that aren't in books.

Have established that I can put a 256m chip in at cp100. If I get one that is for IBM would a cp133 be backward compatible? They are so much more affordable.

Thanks again

It should be, I see no reason why it wouldn't, but you might loose some reliability.

Side effects of using PC133 in a system that uses PC100 can range from something as little as an extra second or two in boot up to something big as blue screens on many softwares. In other cases, there are no side effects. It really depends on the computer and the quality of the RAM.

I'd buy a stick of PC133 and see how well that runs and if it gives any proiblems, then return it. The only thing's I'd look out for when buying RAM for older machines is one, make sure it's from a company of high reputation and that the RAM is low density.

What do you mean by low density? duhhh, sorry Is it the SODimm? Or the cp100/cp133 or speed
Thanks again

Low density simply means that they packed more chips onto the single board and each chip is a smaller amount.

Okay, but how do i tell if it is low density? I know I need 144 pins etc, but what signifies low density?
Thanks

The box should say so. Also, when comparing a low density board to a regular board, the low density has twice as many chips on it.

Thanks

No problem. Hope I was of help.