Hi guys,
Looking for some advice from some more knowledgeable minds as I've been out of the OC scene for some time, last post here was in 2009.
Just finished building my new setup - i5 3570k, Asus P8Z77-i Deluxe Motherboard, XFX 7950 Double Dissapation Edition, 8Gb 1866Mhz Crucial Ballistix Tactical ram all wrapped up in a Bitfenix Prodigy itx case. Comming from an AMD X2 550be (Unlocked 4 core) and 4850 card lol was getting long in the tooth.
Everything has been superb so far, got a good OC from the 7950, and I'm happy with how far my i5 can go. Managed 4.5Ghz earlier @ 1.145v but was not happy with the temps (85c load) so backed down to 4.3 @ 1.125v.
I will try to explain this the best I can..sorry if it gets confusing
My problem is both these Overclocks were done with manual cpu voltage in the bios the old fashioned way i.e gradually increasing the multi till wall is hit then raising the voltage slightly to counter act. I would like to have the cpu downclock when idle as it does standard so went about messing with the offset. I have LLC set to ultra high (75%), Phase control at Optimised and the rest left at auto. From what i understand you boot with offset mode check idle and load voltage then subtract your previous stable voltage from the load reading i.e cpu-z reported vcore @ 1.288v load and I know i only need 1.125 for 4.3Ghz so 1.288 - 1.125 = -0.163 offset?...Is this correct as this would also mean idle voltage would drop from 0.976 - 0.163 = 0.813?
either way whenever i tried to set negative offset pc would fail to post and I would have to reset CMOS.
When overclocking with manual voltage i had big vdroop even with 75% LLC, I would set 1.125 bios and cpu-z would fall as low as 1.112v this was with speedstep disabled of course. I dont know how to factor vdroop in to the offset equation?.
Also a weird occurrence i have just tried offset again, I booted to windows to get my load voltage then went back to the bios and noticed voltage was displayed as 1.120v, so I thought perhaps I'm doing this wrong and I need to apply my stable OC voltage to this reading. 1.120v need 1.125 for 4.3Ghz so a + 0.005 offset. I set this and booted into windows with speedstep enabled only to find my voltage is now at 1.096v. I benchmarked using IntelBurnTest v2.59 for 20 passes on maximum stress setting and PASSED???? 4.3Ghz @ 1.096v this cant be right as I found via manual voltage control I needed 1.125v for this, the temps seem to back this voltage up though.
In short....I'm lost....I'm scared....and I'm very very confused
can anyone shed some light on any of this?
Looking for some advice from some more knowledgeable minds as I've been out of the OC scene for some time, last post here was in 2009.
Just finished building my new setup - i5 3570k, Asus P8Z77-i Deluxe Motherboard, XFX 7950 Double Dissapation Edition, 8Gb 1866Mhz Crucial Ballistix Tactical ram all wrapped up in a Bitfenix Prodigy itx case. Comming from an AMD X2 550be (Unlocked 4 core) and 4850 card lol was getting long in the tooth.
Everything has been superb so far, got a good OC from the 7950, and I'm happy with how far my i5 can go. Managed 4.5Ghz earlier @ 1.145v but was not happy with the temps (85c load) so backed down to 4.3 @ 1.125v.
I will try to explain this the best I can..sorry if it gets confusing
My problem is both these Overclocks were done with manual cpu voltage in the bios the old fashioned way i.e gradually increasing the multi till wall is hit then raising the voltage slightly to counter act. I would like to have the cpu downclock when idle as it does standard so went about messing with the offset. I have LLC set to ultra high (75%), Phase control at Optimised and the rest left at auto. From what i understand you boot with offset mode check idle and load voltage then subtract your previous stable voltage from the load reading i.e cpu-z reported vcore @ 1.288v load and I know i only need 1.125 for 4.3Ghz so 1.288 - 1.125 = -0.163 offset?...Is this correct as this would also mean idle voltage would drop from 0.976 - 0.163 = 0.813?
either way whenever i tried to set negative offset pc would fail to post and I would have to reset CMOS.
When overclocking with manual voltage i had big vdroop even with 75% LLC, I would set 1.125 bios and cpu-z would fall as low as 1.112v this was with speedstep disabled of course. I dont know how to factor vdroop in to the offset equation?.
Also a weird occurrence i have just tried offset again, I booted to windows to get my load voltage then went back to the bios and noticed voltage was displayed as 1.120v, so I thought perhaps I'm doing this wrong and I need to apply my stable OC voltage to this reading. 1.120v need 1.125 for 4.3Ghz so a + 0.005 offset. I set this and booted into windows with speedstep enabled only to find my voltage is now at 1.096v. I benchmarked using IntelBurnTest v2.59 for 20 passes on maximum stress setting and PASSED???? 4.3Ghz @ 1.096v this cant be right as I found via manual voltage control I needed 1.125v for this, the temps seem to back this voltage up though.
In short....I'm lost....I'm scared....and I'm very very confused
can anyone shed some light on any of this?