***The Official Wolfdale 8200/8400/8500 Overclocking Thread ***

[pastymuncher]

That's a better chip than mine. What's that Linx thingy in the top left? Some sort of stress tester?

 

[gurusan]

yeah its an interface for Linpack....a pretty highly regarded stress tester.

http://www.xtremesystems.org/forums/showthread.php?t=201670&highlight=linx

I usually start orthos and get it going for about 1-2 min, then fire up linpack for 250-300 runs. If the puter is unstable at all it will tell me by the time linpack is finished, either linpack or orthos will error.

If you just run orthos on its own it can take up to several hours to error...this rapidly speeds my process of clocking.

 

[gt_junkie]

Hey gurusan,

Got that chip going - for some reason CPU-Z and OCCT don't show the 0.5x multi but core temp's reading it right as the extra half multi is enabled in bios.

Just the northbridge in the loop on a PA120.2 so very happy.

Thanks a bunch matey!

gt

 

[Iraklis F.C.]

and its damn quick!!!bye bye Q6600

thats on a DFI p45 plus , aircooled with a zalman 9700nt, 4gigs mushkin 996599

 

[gurusan]

did some fine tuning at 4.5ghz

 

[Dealz]

4.750....how you get it stable so long at the clock speed gurusan....or is it 4.503 as theres to different speeds

 

[gurusan]

4.5ghz is the correct speed, the chip does run at 4.75ghz game stable but needs 1.44V and is not prime stable, also temps are very high.

 

[Dealz]

okay i see so in bios your PC is set to run at 4.5? am right.... if so if you had lower temps for 4.7 would you run your PC in bois at [email protected]? or do you think 1.44v is just to high

 

[gurusan]

Well if I had known my chip could do 4.5ghz prime stable at only 1.360V then I would have been running that since it's sort of the chip's sweet spot....instead of 4.6ghz 1.408V as I have been for the last several months.

 

[Dealz]

i might just try your [email protected] and see how stable i can be....at the mo am at [email protected] (CPU-Z) its not 100% stable but i can play my games without crashing however i am sure it may crash if i try to play a more demanding game which i havent done yet as i dont have any yet

is 1.40v and 1.41 at load in CPU-Z 4.7 worth it?

 

[gurusan]

1.44V is probably fine but I like to keep around 1.4ish for 24/7 use

 

[.:SAmSuNG:.]

Cant be bothered to leave PC on all night testing but is IBT stable (max stress) 4.4Ghz @ 1.392v.

 

[Dealz]

kk so lets say up to 1.45(CPU-Z) for non 24/7 for a chip that will be replaced between 6 to 12months is okay?

 

[Lumeycom]

Voltage does have an impact on processors as Gurusan states, but it is heat that will generally kill them/degrade their lifespan. Sensible voltages are upto 1.5v providing that your cooling is sufficient (so 1.5 on water, 1.7 on phase and 1.40-1.45 on air)

People are tooooo paranoid about voltages!!!

Some of those 'paranoid' people are the ones that understand about electrical migration and how it affects components, especially small fab items like 45nm chips. You could cool the cpu to absoloute zero and still suffer migration issues above 1.4v

 

[gurusan]

necrobump

 

[chippy08]

Q826A402

How old is that chip ?

 

[gurusan]

I sold that chip awhile ago. My current CPU is an E8400, that was an E8500.

Anyway I managed to bring down the voltage a tad on my E8400

 

[gurusan]

Finally settled on my 24/7 clock....got a nice balance between CPU freq., vcore, and memory performance

 

[chippy08]

I sold that chip awhile ago. My current CPU is an E8400, that was an E8500.

Anyway I managed to bring down the voltage a tad on my E8400

Why did you go from E8500 to E8400 ?

 

[gurusan]

I've been through a bunch of wolfdales just to mess about really. Happy with this E8400 though so will be keeping it for some time to come. Would like to upgrade the GPU setup next but that won't happen for a little while.