Need advice on NB and SB voltage

Dealz

Dealz

Dealz

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Joined
21 Dec 2008
Posts
126
Location
UK
I have OC'ed my CPU and i posted my settings on here to see if everything was okay with my setting....but i have been told that i shouldnt keep my NB at auto but the person doesnt know what i should change it to.....i need to know if i should just leave it or change it

these are my settings again as you can see my NB is set to auto so is my SB

pic_1.jpg

http://www.picfront.org/d/nbWTdPg6b/pic_1.jpg
pic_2.jpg

http://www.picfront.org/d/IrcBE82Q7/pic_2.jpg
pic_3.jpg

http://www.picfront.org/d/Tk5vvABQann/pic_3.jpg
pic_4.jpg

http://www.picfront.org/d/X1nOZZJ2b/pic_4.jpg
pic_5.jpg

http://www.picfront.org/d/3ktonNOF/pic_5.jpg

Thanks for all advice given
 
okay thanks for getting back to me....i was wondering what changing this will do? will i get better proformance?
 
okay i will check now what they are....so i wont gain no proformance but it just good to not have it on auto right?

UPDATE.....i just had a look on that program and it says that the NB and SB are at 1.1v
 
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okay i see...i have gone and changed it LoL and right now my NB is at 1.4 and SB at 1.1 and i upped my FSB by 5 to 455 now my CPU speed has gone up to 4.322 from 4.275 can i keep upping the FSB by 5 till i wont POST?....then do a stress test
 
Woah - you shouldn't really need anything like 1.4v on the NB on a P5Q Pro. I'm currently running 438 FSB using 1.26v on the NB, and reports are that 1.3v is taking people past 500. Try somewhere around the mid/high 1.2s as a starting point.

I think Everest only reports what the default vNB should be, not what it actually is.
 
o right okay....so i can get my FSB to 500? is that right? if so with what Vcore voltage....mine is at 1.325v at the moment....i will set my NB to 1.3v

UPDATE....NB now at 1.3v with FSB still at 455 with 1.325v
 
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You have an E0 chip - mine is an older C0 which generally don't overclock as well (I need 1.4v vCore to get to 438 x 9.5 stable which is as high as I'm comfortable with voltage wise).

Try using something like Intel Burn Test (use search on the forums) to test for stability each time you increase the FSB and only increase in small steps. Waiting until the machine doesn't post may result in you corrupting your Windows install.

There's loads of useful info on overclocking E8400/E8500/E8600 chips in these forums - take some time to read through some of the threads and it'll give you a much better idea of how to proceed. General rule of thumb is change one thing at a time and go in small steps, testing stability each time. Time consuming, but if you're going to do it, may as well do it properly :) /lectureover ;)
 
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