Help overclock i7 2600K

sandeep · 7 Jun 2011 at 20:06

Hi everyone,

I've just upgraded my system to sandybridge.

I have:

- Core i7 2600K
- Gigabyte Z68X-UD3P-B3 Mobo

I've just basically upped the CPU Clock ration to 40x to get 4Ghz but I want to understand it a bit more.

There's also the turbo ratio's how can I use these with my overclock, or is it best just to disable Turbo Boost while overclocking?

tronath · 7 Jun 2011 at 21:49

As the processor is unlocked, all you do is increase the multiplier.

Here is a thread with info about turbo boost & overclocking: http://www.tomshardware.co.uk/forum/266293-11-turbo-boost-overclocking-sandy-bridge

sandeep · 7 Jun 2011 at 21:56

tronath said:
As the processor is unlocked, all you do is increase the multiplier.

Here is a thread with info about turbo boost & overclocking: http://www.tomshardware.co.uk/forum/266293-11-turbo-boost-overclocking-sandy-bridge

I didn't really understand that.

If I overclock with the multi, I'm just getting my full speed, e.g. 40 x 100 (4Ghz).

Turbo Boost won't essentially work then won't it. It's just using the power saving states?

antipesto93 · 7 Jun 2011 at 22:17

change it to 40
if it dosent work
slowly increase your vcore a bit
then thats it

sandeep · 7 Jun 2011 at 22:22

antipesto93 said:
change it to 40
if it dosent work
slowly increase your vcore a bit
then thats it

Oh right, I've come from using AMD Phenom II's and got used to overclocking by the multi, just thought there was something different with Sandybridge.

Also do you know what the stock voltage is?

I'm currently going at 4Ghz ~ 1.265v

Moothead2 · 7 Jun 2011 at 22:30

sandeep said:
Oh right, I've come from using AMD Phenom II's and got used to overclocking by the multi, just thought there was something different with Sandybridge.

Also do you know what the stock voltage is?

I'm currently going at 4Ghz ~ 1.265v

Not sure what stock is but OCUK recommend you don't go over 1.35v.

sandeep · 7 Jun 2011 at 22:33

Moothead2 said:
Not sure what stock is but OCUK recommend you don't go over 1.35v.

Oh right ok, I just want a moderate overclock, im happy with 4Ghz but would like 4.5Ghz, any pointers?

Speed · 7 Jun 2011 at 22:52

Trial and error basically, take it slow. This guide here is good and applies to Z68 exactly the same as P67. It explains the basics, just remember the voltages given are just a guide. YMMV: http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html

sandeep · 7 Jun 2011 at 22:56

Speed said:
Trial and error basically, take it slow. This guide here is good and applies to Z68 exactly the same as P67. It explains the basics, just remember the voltages given are just a guide. YMMV: http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html

I have read that one, he's using 1.25v to get 4.5Ghz, and I'm here with 1.265v and unable to get higher than 4Ghz with that voltage, could I just try and but it to 1.3v and see if I can get the 4.5?

Speed · 7 Jun 2011 at 22:59

Indeed, hence YMMV.

Yup, up it a bit see what happens, go in steps, use the BSODs to help you identify what needs more voltage: http://www.overclock.net/general-pr...0091-complete-list-bsod-codes-when-ocing.html

You are not going to damage anything with those sorts of volts anyways. So up it one step at a time until it is stable. Make sure the Ram is manually set to the rated timings and voltage on the side of the module. I tend to use LinX All Memory and Prime95 Blend in short bursts, say 20 minutes of each one after another. I use LinX first as I find it is more stressful but Prime95 picks up on things that LinX misses and vise versa. If it passes an hour of each it is a good sign you are heading in the right direction.

sandeep · 7 Jun 2011 at 23:43

Speed said:
Indeed, hence YMMV.

Yup, up it a bit see what happens, go in steps, use the BSODs to help you identify what needs more voltage: http://www.overclock.net/general-pr...0091-complete-list-bsod-codes-when-ocing.html

You are not going to damage anything with those sorts of volts anyways. So up it one step at a time until it is stable. Make sure the Ram is manually set to the rated timings and voltage on the side of the module. I tend to use LinX All Memory and Prime95 Blend in short bursts, say 20 minutes of each one after another. I use LinX first as I find it is more stressful but Prime95 picks up on things that LinX misses and vise versa. If it passes an hour of each it is a good sign you are heading in the right direction.

Ok thanks for the help.

I can see that in realtemp and cpuz i'm getting 1.35v obviously vdroop, how can I manage this.

I've set the CPU vCore to 1.24v @ 4Ghz and have been keeping it at that.

sandeep · 8 Jun 2011 at 15:42

OK guys.

I set the Multi-Steps Load Line to Level 6 as I read in a few posts that this is the best setting.

I put the CPU vCore to 1.315v and my multi to 45 for 4.5Ghz

I stressed with Prime and everything seems great, turbo boosting up to 4.5Ghz.

But when the CPU reaches 4.5Ghz it gets to 1.3711v is this normal?