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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 767

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post #7661 of 9534
So I have been redoing my overclock with fixed voltage now that i got my ram figured out and I'm hitting 4.5 Ghz with a offset of 0.005V and a turbo voltage of 0.004V, CPUZ is reporting 1.232V which hasnt changed much from the start of overclocking today. Do I have a golden chip or something? i was expecting to up my turbo voltage at least a few times to hit 4.4 Ghz but its been passing a 5 minute prime test with no trouble and temps are in mid 60's (Celsius). I guess I'll just have to see how far this chip can go with a real overclock.
post #7662 of 9534
Quote:
Originally Posted by nubki11a View Post

Hey guys,

just spent a couple of hours on overclocking my 2500k with my Extreme 3 Gen 3 mobo. It's at 4.5 GHz now and I think it's stable. I had one quick question though - Should I have increased the Offset at all? I just did exactly what the guide told me to do and increased the Turbo Boost Voltage and left the offset at +0.005v.

EDIT: Might be worth mentioning that PrimeTest only found an error once. All the other times I just got a BSOD, could that be because of the high Turbo voltage?

What is your idle vcore in CPU-z with the +0.005 offset? Yes if prime 95 fails then you will increase additional turbo voltage to stabilize your full load.

If you are receiving BSOD's or if a worker stops while running prime 95 then you are not stable yet. You wont get a BSOD from high turbo voltage, you will usually receive a BSOD because your voltage is too low.
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post #7663 of 9534
Quote:
Originally Posted by thymedtd View Post

Screen Shots of current overclock (stable after 12 hours of prime)



When trying to use the offset method I started at +0.005v and kept adding turbo voltage but to no avail. Im also realizing now that my memory wasnt set to the proper XMP profile and thats giving me problems now. Might be better off to start over at least i have my settings saved now.

EDIT: went back and tried to get offset to work, i think my ram voltage was causing me to crash, after setting XMP profile on my Gskill trident (2400 mhz) the voltage was staying at 1.515v and not adjusting to 1.65 like the trident ram needs. Right now im redoing my overclock with offset voltage instead of fixed and im running prime so I think i found my BSOD culprit in the ram voltage. However im still using auto for my C state i guess ill see if i get a problem

Make sure you set your RAM voltage to 1.65 in bios if that is what your ram requires. When using offset voltage you will need Speedstep and C1E enabled. All other C-states can be disabled.

Start with a +0.005 offset and +0.004 turbo. If you can't make it to the desktop then you will need to increase the offset otherwise leave offset at +0.005.

What is your idle and full load vcore in CPU-z?
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post #7664 of 9534
Quote:
Originally Posted by thymedtd View Post

So I have been redoing my overclock with fixed voltage now that i got my ram figured out and I'm hitting 4.5 Ghz with a offset of 0.005V and a turbo voltage of 0.004V, CPUZ is reporting 1.232V which hasnt changed much from the start of overclocking today. Do I have a golden chip or something? i was expecting to up my turbo voltage at least a few times to hit 4.4 Ghz but its been passing a 5 minute prime test with no trouble and temps are in mid 60's (Celsius). I guess I'll just have to see how far this chip can go with a real overclock.

5 minutes is not enough to determine whether your OC is stable or not. I would recommend running Prime 95 for 6 hours minimum for the final test

What multiplier are you trying to hit? 4.5?
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post #7665 of 9534
Quote:
Originally Posted by Lucky 23 View Post

Make sure you set your RAM voltage to 1.65 in bios if that is what your ram requires. When using offset voltage you will need Speedstep and C1E enabled. All other C-states can be disabled.

Start with a +0.005 offset and +0.004 turbo. If you can't make it to the desktop then you will need to increase the offset otherwise leave offset at +0.005.

What is your idle and full load vcore in CPU-z?

I manually set RAM voltage to 1.65 so that shouldnt be an issue. But i guess i spoke too soon before to get 4.6 i finally had to adjust turbo. Currently I'm running 4.6 Ghz with 0.005V offset and 0.059V Turbo.
VCore at load: 1.296v
Temp at load: 74C

VCore at Idle: 0.848v
Temp at Idle: 27C
post #7666 of 9534
Quote:
Originally Posted by thymedtd View Post

I manually set RAM voltage to 1.65 so that shouldnt be an issue. But i guess i spoke too soon before to get 4.6 i finally had to adjust turbo. Currently I'm running 4.6 Ghz with 0.005V offset and 0.059V Turbo.
VCore at load: 1.296v
Temp at load: 74C

VCore at Idle: 0.848v
Temp at Idle: 27C

Excellent. Your idle voltage is great. If your going to stick with a 46 multiplier then just let prime95 run. If it fails then increase additional turbo voltage.
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post #7667 of 9534
Quote:
Originally Posted by Lucky 23 View Post

5 minutes is not enough to determine whether your OC is stable or not. I would recommend running Prime 95 for 6 hours minimum for the final test

What multiplier are you trying to hit? 4.5?

When i run my final test ill do a 12 hour run of prime 95 the 5 minute run is just a quick check to make sure its about right. As far as my person goal i wanted to find 2 different settings. Highest mutiplier with lowest volts (which i got at 4.5 Ghz and turbo voltage of 0.004 and offset voltage of 0.005) From there i started pushing my chip to its upper limits. I think I've found my sweetspot though. Currently im doing a 20 minute run in prime with these settings and tonight before i go to bed ill set it up for a 12 hour run while i sleep.
Current settings and readings:
Multiplier: 48
Turbo Voltage: +0.078V
Offset Voltage: +0.075V
Vcore at Load: 1.400V
Vcore at Idle: 0.928V
Temp at Load: 83C
Temp at Idle: 26C

Edit: How do i make it so only C1E is enabled? do i just enable level 1 in my CPU LLC? Also BSOD'd on boot after restart so had to up the offset by 0.005V
Edited by thymedtd - 1/5/14 at 2:19pm
post #7668 of 9534
Quote:
Originally Posted by thymedtd View Post


Edit: How do i make it so only C1E is enabled? do i just enable level 1 in my CPU LLC? Also BSOD'd on boot after restart so had to up the offset by 0.005V

LLC and the C-states are two different things.

Here is a screen shot of my bios to help you. C-state support is also disable but I didn't have any issues with auto either. You also might need to enable PLL overvoltage when increasing the multi passed 46.

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post #7669 of 9534
Quote:
Originally Posted by Lucky 23 View Post

What is your idle vcore in CPU-z with the +0.005 offset? Yes if prime 95 fails then you will increase additional turbo voltage to stabilize your full load.

If you are receiving BSOD's or if a worker stops while running prime 95 then you are not stable yet. You wont get a BSOD from high turbo voltage, you will usually receive a BSOD because your voltage is too low.

The voltage hovers a bit above 1V. It dipped to 0.992 a couple of times and up to 1.120 aswell.

If I understand you correctly I should've increased the offset instead of the Turbo Boost, as Prime95 didn't really fail on me, I just got x0124 BSOD everytime (note, not related to my temps.).
I'm currently at 4.4Ghz (4.5 GHz resulted in a BSOD after about an hour of prime) with Turbo Boost at +0.105V.
post #7670 of 9534
If your temps are good I'd give your offset a generous boost. That will definitely get you over the line.
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