Finally did it :)

dr4g0nf1y · 24 Dec 2009 at 00:59

after having some trouble before... I've finally got my 955 stable at a low 3.8GHz

I have seen others use 20 multipliers and lower buses but I couldn't seem to get anything earlier when I was try for 4.0GHz

didn't go beyond 1.5v and maybe that was all I needed but the red colours put me off.

I don't like this crosshair's settings though, these too many noob settings about that I have to change before seeing numbers. my 775 socket was much easier to overclock.

everything looking alright?

p.s idle temp's are cpu 32, nb 35, sb34 degrees on idle. doesn't go above 38 degrees on load

DavyBoy · 24 Dec 2009 at 01:04

Have you done any stress testing to check if it's stable yet?

dr4g0nf1y · 24 Dec 2009 at 01:06

in all honesty I don't know how to use prime95.

I've been using this as normal since 21:30 and it's still running. been playing l4d2 for a good hour.

jeckulz · 24 Dec 2009 at 08:33

dr4g0nf1y said:
in all honesty I don't know how to use prime95.

Im no expert.
But if youre doing any kind of CPU OC, I think it's time that you learned.
As will I when I decide its time to OC.
Not being funny, but this OC lark, it doesnt seem to just be a case of adjusting multipliers and hoping nothing dies.

Take heed man.

cahonis · 24 Dec 2009 at 08:37

dr4g0nf1y said:
in all honesty I don't know how to use prime95

If you can start an application , go to a menu item in that application and click it then you can use prime95.

Just go to Options - Torture Test select which of the 4 tests you want to run (they each have a little description of what is being tested & to what degree), select the number of threads to run (1 per CPU core) and then click OK.

blaineoliver · 24 Dec 2009 at 08:39

Nice one so far, i would look at 1.5v, depending on how good your cooler is, my cpu volts dont go to red till past 1.6v :O

tankskun · 24 Dec 2009 at 08:55

Congrats on the OC. Nows the time to prime it.

kevbiss1 · 24 Dec 2009 at 09:41

thats a good o/c. somethin im still to achieve with my 720,it is wise to stress test for a couple of hours or so.occt is another good programme for stress testing jeckulz, our components are more forgiving nowadays, however it is worth doin some research before diving into O/C ing

dr4g0nf1y · 26 Dec 2009 at 22:22

well I got close to 4.0GHz earlier but I think I was running off 1.55 volts which I wasn't too happy about. I can get some stability off multipliers up to 20x but nothing over.

doesn't seem that many people have actually overclocked this cpu by changing the bus, most have simply just changed the multiplier and saying that most say they've reached 3.8 on stock voltage which I find it hard to believe.

tried a different overclock to the above with 200x 19 = 3813MHz @ 1.450v

Other than increasing voltage I can't seem to get anything from just changing the bus

ideas?

lemzip · 27 Dec 2009 at 11:35

a lot of issues come from the HT link being above what it can cope with, it usually causes issues with stability when overclocking. Try knocking your HT link down to 9 or 8x and see if that improves stability. You need to look at keeping it around 2000Mhz, anything above is overkill on a usual system. Can you do as a screenie of the memory tab in CPU-Z

mmj_uk · 27 Dec 2009 at 14:07

An excellent and easy to use stress test is LinX based on the Intel Linpack benchmark. All you need to do is open it up, change the amount of memory to 90% of available memory to keep it busy for a while and then click start.

It will very quickly expose any instabilities in your overclock, but is necessary if you intend to use your computer for any intensive tasks which require accurate processing, or if you just want peace of mind of having a stable system.