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post #1081 of 3170
Quote:
Originally Posted by Admiral Mudkipz View Post

Is it better to increase turbo or offset voltage? I kept offset around +.005V but pushed turbo pretty far. Final Vcore was around 1.36 V and highest temp was around the 93*C area and even then, it failed P95 at 11 hours. I don't understand how I can't pull off low voltage, high overclocks while other people can.

I don't touch turbo voltage personally, I just increase offset and let it sit. I'm currently sitting at 4.5 with +0.045 offset, rock solid in terms of stability. PLL is as low as it can go, VTT is 0.955. I increased my RAM voltage by 0.005 v so it's currently at 1.55v just for a bit of extra stability. Make sure you use the BSOD resource to check what's causing your stress tests to fail.
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post #1082 of 3170
Quote:
Originally Posted by Erakith View Post

I don't touch turbo voltage personally, I just increase offset and let it sit. I'm currently sitting at 4.5 with +0.045 offset, rock solid in terms of stability. PLL is as low as it can go, VTT is 0.955. I increased my RAM voltage by 0.005 v so it's currently at 1.55v just for a bit of extra stability. Make sure you use the BSOD resource to check what's causing your stress tests to fail.

Thanks for the help. Most of my BSOD's state that I require more VTT or more Vcore. I will try just playing with offset. It seems most people are playing around with that setting only.
post #1083 of 3170
I went back to using fixed voltage, found it to be more stable. There is definitely something weird about leaving VTT and PLL voltages on auto, regardless of fixed/offset Vcores, these two will create instability even after you pass prime95 24+hrs. I have seen everything from freezes when browsing (low load situations) and bluescreens / crashes when gaming (medium - high load). So definitely recommend setting a static value for VTT and PLL. The UEFI will tell you what the 'default' values are for your current OC, what I did was lock them to the value closest to the default, and I've been crash free for 4/5 days now.

Also took aar0nsky's advice and turned off speedstep (and C1E state). I initially thought turning them off completely removes any power savings but thats not true, the package wattage jumps between 10W ~ 80W, depending on load, even though my multi is maxed out all the time now. It may not be as efficient as stock power savings, but this chip barely uses any power anyway smile.gif
Edited by zerocraft - 7/9/12 at 6:59am
post #1084 of 3170
Quote:
Originally Posted by zerocraft View Post

I went back to using fixed voltage, found it to be more stable. There is definitely something weird about leaving VTT and PLL voltages on auto, regardless of fixed/offset Vcores, these two will create instability even after you pass prime95 24+hrs. I have seen everything from freezes when browsing (low load situations) and bluescreens / crashes when gaming (medium - high load). So definitely recommend setting a static value for VTT and PLL. The UEFI will tell you what the 'default' values are for your current OC, what I did was lock them to the value closest to the default, and I've been crash free for 4/5 days now.
Also took aar0nsky's advice and turned off speedstep (and C1E state). I initially thought turning them off completely removes any power savings but thats not true, the package wattage jumps between 10W ~ 80W, depending on load, even though my multi is maxed out all the time now. It may not be as efficient as stock power savings, but this chip barely uses any power anyway smile.gif

I see. Did you do VTT and PLL levels higher or lower than defaults to allow for extra stability?
post #1085 of 3170
building my buddy a rig with a z77 extreme 4 (originally bought pro3 without realizing the second x16 slot was only pinned for x4 :'( ) these black boards are so damn beauiful
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post #1086 of 3170
Thread Starter 
Quote:
Originally Posted by Daveleaf View Post

I can only seem to OC using that asrock oc utility, is this normal ?
I set all the OC settings in BIOS, but once in windows, it seems to only lock to whats set in the OC utility.
If I set BIOS multi to 40, and boot into windows and run prime 95, it will only clock up to 3.4 gigs.
I have to open the utility and set the multi there to 40, and it will go to 4 gigs.
Just curious, if I missed something, that allows the utility to override BIOS setttings.
thanks
edit: OK oddest thing, what are you guys using to monitor mulitplier ?
Its seems like real temp and CPU-Z are reporting 40x when running P95, but different when idle.
right now with just broswer open, CPU-Z is reporting 16x, while readl temp shows anywhere from 23x to 40x constantly jumping around, but never back to 16x(which it did without having the asrock OC utility active)
Also CPU-Z seems to only report either 40x or 16x, nothing in between.
so confused......
Research Intel SpeedStep. It is the reason you see this deviation.
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post #1087 of 3170
Thread Starter 
Quote:
Originally Posted by zerocraft View Post

I went back to using fixed voltage, found it to be more stable. There is definitely something weird about leaving VTT and PLL voltages on auto, regardless of fixed/offset Vcores, these two will create instability even after you pass prime95 24+hrs. I have seen everything from freezes when browsing (low load situations) and bluescreens / crashes when gaming (medium - high load). So definitely recommend setting a static value for VTT and PLL. The UEFI will tell you what the 'default' values are for your current OC, what I did was lock them to the value closest to the default, and I've been crash free for 4/5 days now.
Also took aar0nsky's advice and turned off speedstep (and C1E state). I initially thought turning them off completely removes any power savings but thats not true, the package wattage jumps between 10W ~ 80W, depending on load, even though my multi is maxed out all the time now. It may not be as efficient as stock power savings, but this chip barely uses any power anyway smile.gif

I am glad you tried it out. I prefer it even though some argue it may be ok.
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post #1088 of 3170
Quote:
Originally Posted by Admiral Mudkipz View Post

I see. Did you do VTT and PLL levels higher or lower than defaults to allow for extra stability?
My 'auto' VTT value was 1.059v (i think), so I chose the closest one to it (1.057v) from the menu. So no, I am not going higher, lower in fact, but not by much. Just picking the closest to stock to make sure they stay stable, and it seems to help.
post #1089 of 3170
Thread Starter 
Quote:
Originally Posted by zerocraft View Post

My 'auto' VTT value was 1.059v (i think), so I chose the closest one to it (1.057v) from the menu. So no, I am not going higher, lower in fact, but not by much. Just picking the closest to stock to make sure they stay stable, and it seems to help.

If problems persist I would recommend lowering/increasing VTT. Different people have had mixed results. I lowered mine and it has been working great.
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post #1090 of 3170
I'm daunted by the amount of factors that go into the stability of an overclock. I used to think it was as simple as just increasing and decreasing Vcore/multiplier tongue.gif.
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