2600K + P8Z68-V Overclocking Help

Legless · 6 Dec 2011 at 23:10

I've just upgraded to a 2600K and Asus P8Z68-V motherboard and would love to overclock it to the max, i've also installed the Corsair H80 to cool it.

I'm a bit worried what the max volts on this chip are and also the max temp you should be lookling at. At the moment all i did was raise the multiplier to 44 and left the FSB @ 100 so i have an effective overclock of 4.4Ghz, but obviously want more. At load in Prime95 i hit 60 degrees and the volts read 1.312v (in CPU-Z), is this safe temps and volts? Obviously, the more i overclock the multiplier, the higher the volts will go (currently set to auto in bios). so whats safe...

Any help on overclocking more would be much appreciated...

IvanDobskey · 6 Dec 2011 at 23:40

Those temps and volts sound safe to me

I personally wouldn't let the voltage go over 1.4v myself though.

Legless · 6 Dec 2011 at 23:56

Thanks for reply m8, what i'd really like is someone with a similar setup that could post their bios settings, so i can get more out of this cpu...

IvanDobskey · 7 Dec 2011 at 00:24

No problem

I'll be giving my system an overhaul with an i5 2500k very soon so I will be doing some more reading up on SB clocking. Board I have on order is pretty similar to yours: P8Z68-V PRO Gen3. How easy is it to overclock? How are you finding the new bios gui?

bedazzled · 7 Dec 2011 at 00:31

I've got a 2500k on the pro version of the board and these are my settings for 4.6 GHz prime stable for 8 Hrs and 20 runs of IBT on maximum. They should at least provide a starting point for you.

BCLK 100
Multi 46
internal pll enabled
LLC medium
VRM frequency auto
VRM spread spectrum enabled
phase standard
cpu current 100%
cpu voltage offset mode
offset sign -
offset 0.010v

on full load the max vcore is 1.286V

IvanDobskey · 7 Dec 2011 at 00:34

bedazzled said:
I've got a 2500k on the same board and these are my settings for 4.6 GHz prime stable for 8 Hrs and 20 runs of IBT on maximum.

BCLK 100
Multi 46
internal pll enabled
LLC medium
VRM frequency auto
VRM spread spectrum enabled
phase standard
cpu current 100%
cpu voltage offset mode
offset sign -
offset 0.010v

on full load the max vcore is 1.286V

Cheers for the info, looks good. What temps do you get with those settings?

pgi947 · 7 Dec 2011 at 07:35

I have pretty much an identical setup, can put some screens up later if it would help, I have allot of different settings compared to bedazzled, for example I have vrm set to 350, phase and dutyto extreme, LLC to u high and CPU compat to 120%

bedazzled · 7 Dec 2011 at 08:40

After 30 min prime95 I get temps ranging from 61C - 64C but thats with a custom water loop. I used to have a Corsair H60 and at the same vcore could only get 4.4GHz before temps hit the high 70's running prime95.

Legless · 7 Dec 2011 at 08:50

pgi947 said:
I have pretty much an identical setup, can put some screens up later if it would help, I have allot of different settings compared to bedazzled, for example I have vrm set to 350, phase and dutyto extreme, LLC to u high and CPU compat to 120%

If you could do that m8, it would be fantastic, as i'd like to hit 4.8Ghz like yourself and keep the volts and temps down...

pgi947 · 7 Dec 2011 at 09:30

Ill do it when I get home tonight, remember not to copy my voltage or ram settings, all chips are different, a good chip for 4.8 you will only need around 1.32v, average around 1.38v and poor in excess of 1.4v.

If 4.8 isn't running at a low enough voltage just down clock a little, most are happy with 4.6 with lower volts. My temps with a pair of vipers on the h80 under ibt load sit around 65-70c.

Legless · 7 Dec 2011 at 20:45

pgi947 said:
Ill do it when I get home tonight, remember not to copy my voltage or ram settings, all chips are different, a good chip for 4.8 you will only need around 1.32v, average around 1.38v and poor in excess of 1.4v.

If 4.8 isn't running at a low enough voltage just down clock a little, most are happy with 4.6 with lower volts. My temps with a pair of vipers on the h80 under ibt load sit around 65-70c.

Any chance of those photo's or overclock info m8, would be much appreciated...

pgi947 · 7 Dec 2011 at 20:54

Read my mind, just uploading them now, will edit this post with them once done

here you go!

Apologies for the bmp files.

pc_monkey · 8 Dec 2011 at 02:54

Oops sorry wrong entry

pc_monkey · 9 Dec 2011 at 17:49

@pgi947

few questions, you have a 2600k, can your settings be applied to a 2500k ?

what is your cpu's load voltage when running IBT?

cheers

pgi947 · 9 Dec 2011 at 19:14

Yes all settings are exactly the same, apart from of course HT/hyperthreading which will be greyed out on the 2500K. The BIOS revision is 0401, which is the stock base version, newer versions may have other options, but until I need to update (SRT) its staying at 0401.

Full IBT load hits 1.32v at peak, P95 load hits 1.312v at peak, temps after a few hours are in the high 60's in stress, usually around 47c while gaming.

Bos · 9 Dec 2011 at 23:27

pgi947 said:
Yes all settings are exactly the same, apart from of course HT/hyperthreading which will be greyed out on the 2500K. The BIOS revision is 0401, which is the stock base version, newer versions may have other options, but until I need to update (SRT) its staying at 0401.

Get that bios updated

Sleep mode with PLL Overvoltage enabled has worked perfectly since 0706 that was released in September + other stability updates, ram compatability etc.
I'm using the latest 1101 bios and all is good.

pgi947 · 9 Dec 2011 at 23:38

I may do at some point, I've just not had any issues at all with 0401 so stuck with it, as it stands the only reason I have for updating is when I finally pull my finger out and buy another SSD for SRT duties.

My PC never sleeps, its either on or off, nothing in-between

Also that is an incredible clock for 1.33v I must say

Bos · 9 Dec 2011 at 23:44

Your not looking too shabby on vcore either considering its an i7 with HT enabled