Do you need to reformat when going from single core to dual core (amd64)

[chibislick]

I heard when going from p4 to p4 hyper-threading with Intel you needed to reformat Windows (xp-sp2) to get running at maximum potential.

Is it the same with single core to dual core with AMD64?

Thank you,

 

[ta8689]

Heck idunno.. i went from 3200 winchester to 165 opteron... both cores run good, but i need new memory to overclock... In order for it to work no... u dont need to format

 

[JC]

XP adjusted from uniprocessor to multiprocessor automatically for me when I upgraded my 3000 Winnie to an Opterpwn 165.

 

[ElFenix]

reformating is a geek badge of honor. it is often pointless. i've benched fresh installed windows vs old installs when switching hardware underneath windows and the differences are astoundingly minute.

 

[ta8689]

Usually you notice speed increase when you have only the o/s on it Then you put all your useless junk back on and hey... back to normal!!

 

[chibislick]

So there sould be not software side to dual core operation, opposed to this..

quote
Although Windows 2000 is compatible with Hyper-Threading Technology, we expect customers will get the best performance from Hyper-Threading Technology using Windows .NET Server. This is because the Windows .NET Server Family is engineered to take full advantage of the logical processors created by Hyper-Threading Technology.
/quote

right?

thanks,

 

[RichUK]

Its advisable to reinstall so you don?t have any issues with any software drivers etc. But saying that myself and a lot of other people on here, found when switching to a dual core you did not need to reformat. Reason being as JC has said:

Originally posted by: JC
XP adjusted from uniprocessor to multiprocessor automatically for me when I upgraded my 3000 Winnie to an Opterpwn 165.

Windows XP will simply detect the change in hardware and load the correct HAL accordingly.

I only recommend reformatting if you have any issues after installing the correct drivers and updates etc. Otherwise just leave it be, it saves a lot of time and hassle.