Worse benchmark after OC

[Trev_pHi]

Hi all,

Just wondering if any of you have experienced this before: When I run 3d mark 11 with my i7 2600k @ stock I get ~p9000 then when I overclock from 3.4 to 4.4 with a manual voltage of 1.275 I get ~p9200 on 3dmark which is expected but when I OC further to 4.6ghz with manual voltage of 1.33 I only get ~p8900....

next I OC back to 4.4 but this time using an offset voltage of -0.050 and this time I only get ~p9000 in 3dmark instead of ~9200 as I did with a manual vcore of 1.275.

So Basically:

Stock = p9000
4.4ghz manual Voltage 1.275 = p9200
4.6ghz manual voltage 1.33 = p8900
4.4 offset voltage -0.05 = p9000

I thought maybe I need to up the voltage but with an offset of -0.050 4.4ghz draws around 1.275 under load just the same as it does when i manually set it to a constant 1.275. I'm a novice OCer and thought maybe I need to play around with vrm frequencies or phase control but was hoping a more experienced OCer or someone who has encountered this before can point me in the right direction.

Currently I'm running:
multiplier: 44
LLC: 75%
offset: -0.050

core temps max 60 degrees during 3dmark

everything else untouched.

i7 2600k
ASUS p8p67 evo
4x4GB corsair vengeance @ 1600mhz 8-8-8-24 1.5v
2 x gtx 560 sli

 

[Tradesman1]

Ocing is all about experimentation to get best results, can have it where it's perfectly stable at say 1.25 then leave all same and actually go up or in cases even down just a touch and have a performance jump... I recommend keeping track of settings and test results so you have a comparison base and fallback so you can always go back to last known good (i.e. you are happy with performance wise) config

 

[Trev_pHi]

Ocing is all about experimentation to get best results, can have it where it's perfectly stable at say 1.25 then leave all same and actually go up or in cases even down just a touch and have a performance jump... I recommend keeping track of settings and test results so you have a comparison base and fallback so you can always go back to last known good (i.e. you are happy with performance wise) config

OK I'll muck around with it. I only need to play with offsets and multiplier though? Would phase control or vrm etc make any difference?