Question about an IBM Thinkpad 390E

[freakflag]

My 390e uses PC66 SODIMM's. Can I use PC100 as well?

Also, can I put any old 2.5" HD in here? Like maybe a 7200rpm?

thanks in advance for helping out a laptop n00b.

:beer:

 

[Frightcrawler]

1) "We searched 20,000 systems to find only the memory upgrades guaranteed to work in your IBM ThinkPad 390E." and only PC66 dimms showed up. So, I guess its safe to say that you cant use pc100 dimms. (Crucial memory finder)
2)Yes, I believe so, but the BIOS will most likely (99% sure) say that the hard drive is too big and not recognize it. There may or may not be a way around this.