IBM Thinkpad T21 : what type of ram ????

  waylander69 21:56 31 Jul 2007

Just purchased an IBM Thinkpad T21 2647-8BG , it has 128 meg of PC100 ram installed, I wanted to upgrade the memory so went to crucial and they say it should take pc133 up to a max of 256 per slot, hmmmm smell a rat somewhere or will the laptop take either pc 100 or pc 133
advice would be much appreciated, can't find a user manual on the IBM website so any

G :)

  brundle 21:58 31 Jul 2007

PC133 will work, the numbers relate to the speed of the memory - PC133 is backward compatible with PC100

  cream. 21:58 31 Jul 2007

" or will the laptop take either pc 100 or pc 133 "

yes it will because pc133 is backwards compatable with pc100. So you are 100% safe.

  waylander69 22:08 31 Jul 2007

thats a relief as I thought , crucial couldn't be wrong so bought a 256 pc133,
ok now for the silly moment, if pc133 is backward compatable, can you mix it with pc100 in the opposite slot ?

many thanks for the quick response
G :)

This thread is now locked and can not be replied to.

Elsewhere on IDG sites

Dell XPS 13 9370 (2018) review

No need to scan sketches into your computer with Moleskine's new smart pen

HomePod review

Streaming : Netflix ou Amazon Prime Video ?