Re: CPU upgrade (hyperthreading issue)

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: William \(Bill\) Vaughn (billvaRemoveThis_at_nwlink.com)
Date: 01/07/05 

Date: Fri, 7 Jan 2005 15:26:57 -0800

Well, I just did this (moved from 2.06GHz to 3.2GHz 800fsb 1MB C2 cache),
but I had to change motherboards too (875 to 865 as the 875 did not support
the 1MB cache). I did NOT have to reinstall the OS, but it was NOT an OEM
install (it was installed from MSDN Universal). I DID have to reactivate
though. My IBM laptop also went through a motherboard/CPU change with the
same hard drive image and I just had to reregister. In this case it WAS an
OEM install version (at least I think so). 

-- 
____________________________________
William (Bill) Vaughn
Author, Mentor, Consultant
Microsoft MVP
www.betav.com
Please reply only to the newsgroup so that others can benefit.
This posting is provided "AS IS" with no warranties, and confers no rights.
__________________________________
"Yves Leclerc" <yleclercNOSPAM@maysys.com> wrote in message 
news:OCLa8MN9EHA.4072@TK2MSFTNGP10.phx.gbl...
> Here is the simple answer:
>
> If you are just replacing the P4 2.25GHz CPU with the 3.06GHz, then you 
> might not have to re-install.  However, you may not get HT working.
>
> If you have to replace the motherboard, when changing to the 3.06GHz, then 
> YES, you will have to re-install.  Also, if you have an OEM version of XP, 
> then you will need to buy another copy of XP for the re-install.  OEM 
> versions are forever tied to the first motherboard/PC that the software 
> gets installed onto.  As per the End-User License Agreement (EULA), OEM 
> versions can not be transferred.
>
>
> "Dean" <Dean@discussions.microsoft.com> wrote in message 
> news:ECF74364-4639-46EB-90BD-40CD4600405B@microsoft.com...
>> Currently I have a P4 2.26GHz CPU, I'm about to upgrade to a P4 3.06 GHz
>> (with hyperthreading). Will I have to reinstall Windows XP in order to 
>> enable
>> hyperthreading? I've heard a million different stories about this, but 
>> I'd
>> like a definitive answer.
>
>

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