My First Overclock - Input?

[BloomerzUK]

Hi Guys,

I've recently got my new kit in, and up and running.. I'm running at at 4.3GHz stable (I believe soon) - cooled with a Corsair H60 (well, a Coolit, but it's the same OEM). I'm new to Overclocking on Sandybridge.. any tips? I've noticed in CPU-Z, underload the multiplier goes from 43 to 41 and then back again from time to time, any reasons?

Here is a screenshot and a pic of my rig:

Specs:

2500K @ 4.3GHz cooled with a Corsair H60 (one fan cotroller Tuniq Fan) - Should I do Push/Pull with this?

8GB XMS3 @ 1600MHz

ASRock Extreme3 Gen3

4850 @ Stock

Antec TruePower New 650W

Xigmatek Utgard Case

I am soon getting a SSD and a new graphics card (for BF3 and other upcoming titles).

Thanks for looking,

Jake

 

[Scoob]

Hi,

Looks like you're off to a good start. Can I ask what you changed to get stable at 4.3?

The reason I ask is because I've seen LOTS of people, maybe those who have experience overclocking the prior gen of chips, changing umpteen different settings to get to that point. Generally speaking they don't need to plus they cannot know which change made the difference if they've done several at once...

To get to 4.5 on my 2500k I adjusted the Multi to 45 and bumped up the offset vCore by 0.040v. Done. To get to 4.6 I set the Multi to 46 and bumped the offset vCore by 0.050v and turned LLC up 1 notch above default.

I was helping a friend OC his 2600k and he kept on changing loads of other stuff each time. I asked him why I'd he'd reply "I'm sure it must need this changing as well"...no reasoning other than that. In the end we did it my way...by changing two values lol.

I will say that in my experience (three 2500k's and a 2600k overclocked) going beyond 4.6ghz does involve changing other things. However for a good, stable 4.5 I've only ever needed to change multi and vCore offset. I ensure stability using Prime 95 initially, then IBT (which is really hard on a CPU) and I also run tests loading LESS than the full four cores as this simulates gaming far better. I.e. cores' #1 and #2 loaded, cores #0 and #3 near-idle. This method has highlighted instabilities where a game might crash but ALL other benches pass with flying colours. I actually made a post on it Here if you'd like to have a read.

Btw: you've posted this in the Graphics Card Overclocking sub-forum by mistake, not sure if a Mod can move this for you or not.

Cheers,

Scoob.

 

[marsey99]

im not sure what you're after dude :s

do you want to get your oc higher or are you just showing off

 

[BloomerzUK]

Hi,

Looks like you're off to a good start. Can I ask what you changed to get stable at 4.3?

The reason I ask is because I've seen LOTS of people, maybe those who have experience overclocking the prior gen of chips, changing umpteen different settings to get to that point. Generally speaking they don't need to plus they cannot know which change made the difference if they've done several at once...

To get to 4.5 on my 2500k I adjusted the Multi to 45 and bumped up the offset vCore by 0.040v. Done. To get to 4.6 I set the Multi to 46 and bumped the offset vCore by 0.050v and turned LLC up 1 notch above default.

I was helping a friend OC his 2600k and he kept on changing loads of other stuff each time. I asked him why I'd he'd reply "I'm sure it must need this changing as well"...no reasoning other than that. In the end we did it my way...by changing two values lol.

I will say that in my experience (three 2500k's and a 2600k overclocked) going beyond 4.6ghz does involve changing other things. However for a good, stable 4.5 I've only ever needed to change multi and vCore offset. I ensure stability using Prime 95 initially, then IBT (which is really hard on a CPU) and I also run tests loading LESS than the full four cores as this simulates gaming far better. I.e. cores' #1 and #2 loaded, cores #0 and #3 near-idle. This method has highlighted instabilities where a game might crash but ALL other benches pass with flying colours. I actually made a post on it Here if you'd like to have a read.

Btw: you've posted this in the Graphics Card Overclocking sub-forum by mistake, not sure if a Mod can move this for you or not.

Cheers,

Scoob.

Thanks for the input dude!

I've changed the multi to 43 and put the offset of +0.020 I believe.

Sorry about putting in wrong section, can a mod move it please?

 

[Ibanez81]

how long did you run prime for?

Only reason i ask is because The picture you put up only shows you ran it 6 minutes so far, did you leave it for an hour ect?

 

[BloomerzUK]

Left it for about 8 hours overnight.

 

[equk]

Looks nice

what's windows loader? (top right corner of screenshot)

 

[NoKz]

Looks nice

what's windows loader? (top right corner of screenshot)

It's used to crack Win7. Not something I'd put out in the open if I were him.