A basic memory question

[vw56german]

A coworker just bought an IBM t30 laptop. The documentation states it uses PC2100 memory. Now I know this may seem like a very silly question, but will PC2700 memory work in his laptop? My first thought was no, but I wanted to check it out here in case it might work.

[Chewy]

http://www.crucial.com/

333 should substitute but some faster sticks don't like to run slower, it's all in the spd tables(that little tiny chip on the corner)

[ed klein]

Check it out at this web site: http://www.crucial.com

They are the memory experts, just bring up your type of computer and it will give you a selection of the memory that will work. Good company, I have ordered memory from them at least four times, no problems at all.
Wow, Chewy is too fast for me.

[vw56german]

Ok, so the site shows that: DDR PC2700 • CL=2.5 • UNBUFFERED • Non-parity • DDR333 • 2.5V • 32Meg x 64

should work for the laptop, but when the memory is inserted into the second slot it is not recognized. Assuming it is clipped in properly, what should we be checking first to determine the trouble?

Would swapping the PC2700 stick to the first slot and the existing PC2100 to the second slot be of any help?

[Chewy]

I would install ctspeed and everest on the laptop, analyze what's already in there, then swap sticks(if it boots) and analyze the new stick. Then go into bios and see if there are any settings that will relax timings to get the 2 to work together. your 333 may not run at 2100

[vw56german]

I would install ctspeed and everest on the laptop, analyze what's already in there, then swap sticks(if it boots) and analyze the new stick. Then go into bios and see if there are any settings that will relax timings to get the 2 to work together. your 333 may not run at 2100

Thanks Chewy, I will get him to install everest and ctspeed and check if the system will run on the PC2700 alone. If it boots on the PC2700 it might just be easier to have him run 2 of them rather than find an old PC2100. When he gets details I will report back.

[katzdvd]

Chewy, isn't there some thought about putting the faster stick in the first slot, or is that just a bogus rumor?

[Chewy]

anything's possible with memory and auto settings in bios