Hi,Does anyone know whether there could be or will be any need to re-install Windows XP after upgrading to a faster CPU ?At least older operating systems used to have hard coded timing loops which they tuned during O/S installation, perhaps even device drivers did that. Not sure whether this is still the case. Then these loops would be too short and may cause trouble.I guess there must be quite a number of people who have done CPU upgrades and can report here on their experiences.Regards,Siggy

Wouldn't make any difference that I can see. I have upgraded CPUs without reinstalls.. :)

I've done many CPU upgrades & have never had to re-install windows afterwards.Now a new motherboard is usually another story.....

Thank you both for your replies.That sounds good, may do an upgrade then.Better than a new box in many respects.Regards,Siggy

Shouldn't be necessary if you're upgrading within the same "family" of CPUs.I have read in several places that if upgrading from an older AMD Athlon to an Athlon XP, a reinstall of Windows XP may be beneficial, although not required.Dan

Hi,if you want to change your Board- oder CPU-Type under Win2K or WinXp, then you can run into the following Problem:Your actual HD-, PCI- and Board-Drivers had replaced the following Windows-Files (or parts of them): - Atapi.sys - Intelide.sys - Pciide.sys - Pciidex.sysIf your Windows-Directory is named win2000, then, you find the Files at: c:win2000system32drivers. Be sure, your Explorer-Options dont hide the System-Files (not default !).For Win2K you find the Orginal-Files in the Servicepack 4For winXP you