Change/upgrade PC motherboard

I have two old PCs. One is IBM Aptiva PII 400 MHZ. Another is Toshiba M500 PIII 500 MHZ. Can I Change/upgrade PC motherboard using P4 or AMD chip for them? If I can, please tell me what kind of motherboard I need for each of them. If you think it is too hard or take a lot of time, please tell me as well. I'll buy a new one.

What kind of CPU do you recommend between P4 and AMD?

Thanks a lot.

所有跟帖： 

• 工程浩大，胜算不高，建议直接买新电脑 -燕赵悲歌- ♂ (0 bytes) () 11/14/2005 postreply 18:19:05

• 回复：工程浩大，胜算不高，建议直接买新电脑 -yma16- ♂ (206 bytes) () 11/14/2005 postreply 18:29:19

• AMD Opteron 144 Processor S939 -Flyboat- ♀ (0 bytes) () 11/14/2005 postreply 19:22:17

• 回复：Change/upgrade PC motherboard -CCK- ♂ (378 bytes) () 11/14/2005 postreply 18:27:20

• Thank you all -yma16- ♂ (160 bytes) () 11/14/2005 postreply 19:47:05

• 回复：Thank you all -CCK- ♂ (136 bytes) () 11/14/2005 postreply 20:39:26

• 回复：Change/upgrade PC motherboa -winlinux- ♂ (110 bytes) () 11/14/2005 postreply 23:27:39

• 回复：Change/upgrade PC motherboa -2161- ♀ (214 bytes) () 11/16/2005 postreply 11:11:20