The "SP3 kills AMD" is due to some OEM's incorrectlyusing a single disk image for both their Intel & AMD offerings. After the upgrade, the intel driver can then cause issues on an AMD-based system.
either removing the intel driver before the upgrade, or going into save mode after the upgrade and telling it to skip the intel driver will resolve the issue.
If you installed windows from a standard XP disk (not the OEM recovery disk) you'll be fine as well.
another common cause for crashed SP installs is spyware -- some of the low-level malware can interfere with windows' normal behavious, so It's always strongly recommended to do a spyware scan before applying a servicepack.
either removing the intel driver before the upgrade, or going into save mode after the upgrade and telling it to skip the intel driver will resolve the issue.
If you installed windows from a standard XP disk (not the OEM recovery disk) you'll be fine as well.
another common cause for crashed SP installs is spyware -- some of the low-level malware can interfere with windows' normal behavious, so It's always strongly recommended to do a spyware scan before applying a servicepack.