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The ULTIMATE Sandy Bridge OC Guide + P67A-UD7 Performance Review - Page 25

post #241 of 713
Hy guys, hy Sin.
Great post you have here, gtz.

I have a problem in OC my 2600k, and maybe u can help me.
My system: MB P67A-UD4-B3, CPU 2600k, Geforce GTX 580 3gb, 6GB DDR3 Corsair 1600 mgh, CPU Coller Noctua D14.

I am new in OC, and I was following your review in order to OC my CPU at, at least 4.5
For 4.5 I just change the multiplier (x45), everything looks ok in BIOS (Vcore 1.365), but when i start the CPUz, for some reason it showing the CPU it's working at 3.5 GHz.
I'm blend stressing the CPU with Prime95, but the frequency is still the same.
Sometimes, when i start the CPU Z, it's showing at the beginning (for 1-2 seconds) the same value like in BIOS (4.5 GHz) but after it's going back at 3.5.

Any idea what i'm doing wrong?

I tried at also at 4.8 GHz (Vcore 1.380) and at 4.9 GHz (same like 4.8, 1.380), and still the same thing.

Thank You.
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post #242 of 713
You need more Vcore Try 1.42 if not 1.44 and see if you have the same issue at 4.8

My chip needs 1.4 to do 4.8 + but only 1.32 to do 4.7
post #243 of 713
Quote:
Originally Posted by Barbulex View Post
For 4.5 I just change the multiplier (x45), everything looks ok in BIOS (Vcore 1.365), but when i start the CPUz, for some reason it showing the CPU it's working at 3.5 GHz.
What version of CPU-Z are you using?

Also, which multiplier did you change? If you only changed the first (single core) multiplier, then it would only run at 4.5 GHz while running a single-threaded program. If you want to use turbo, you have to set all four of the turbo multipliers to 45.
Edited by valvehead - 3/23/11 at 4:09pm
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post #244 of 713
Quote:
Originally Posted by valvehead View Post
What version of CPU-Z are you using?

Also, which multiplier did you change? If you only changed the first (single core) multiplier, the it would only run at 4.5 GHz while running a single-threaded program. If you want to use turbo, you have to set all four of the turbo multipliers to 45.
1.57 .. CPU-Z is up to date

I changed only the first one .. because I was trying to make it only 4.5
In bios everything looks ok (it showing the 4.5 GHZ), and the OS is running ok ... the only thing i don't know why CPU-Z is showing 3.5...


Later Edit:
After 5-6 hours of trying , I think, I solved the problem.
I just uninstalled the utility from Gigabyte .. "Smart6" or smth like that.. and now the CPU-Z is showing the real value.
Now I will try to bring it up more.

Thank you for your answers.
Edited by Barbulex - 3/23/11 at 4:14pm
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post #245 of 713
nice guide
    
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post #246 of 713
Quote:
Originally Posted by Sin0822 View Post
But i can answer a few questions, first don't worry go ahead and install your OS, it wont restart in the middle for no reason. You have a POST codes display which displays numbers/letters while the computer is starting up. You want to watch that, if you try to install and OS and boot from the CD ROM then it will go all the way to FF. The mobo rebooting itself is part of systems check, it wont happen often, nor will it occur after the post screen.
Finally had some time to sit down and resolve the issue. The reboot issue was tied to using the reset button. I installed the OS without a problem and everything runs as it should. I haven't used the reset since I installed the OS and the shutdown/restart at the post screen hasn't happened in 30-40 system shutdowns. I had a b*tch of a time getting my system to detect both graphics card but I finally got it to after 4 hours of trying but I guess that's another story.....thanks for the help!

Now to stress test, overclock and benchmark.
post #247 of 713
Thread Starter 
yea that is very odd, i have two GTX 570 and had no problems with setting up SLI. I found that on some boards if you switch around the cards, it fixes a lot of SLI problems, i have no idea why. Good luck on the OCing part it should be a great experience, SB is fun to OC.
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post #248 of 713
It was 4 hours of switching the cards back and forth, trying them individually, removing and reinstalling drivers, testing pcie 1, pcie 2 etc etc NOT FUN

I'll be using your OC guide so hopefully everything will go well. I'm just looking for a modest 4.5 24/7 OC. Nuthin crazy.
post #249 of 713
Great guide btw. Got me to where I am. Nice work. Couple questions though.

Current settings: The rest left to default/auto

CPU Clock Ratio: 44x
CPU PLL Overvoltage: Disabled
Real-Time Ratio Change in OS: Disabled
Turbo Boost: Disabled
C1E: Disabled
C3/C6: Disabled
EIST: Disabled
CPU Vcore: 1.375

In Windows I have 1.344V at idle, and 1.284V at load.

Edit- Max temp on the hottest core was 64

First Question, is that high for 4.4? 1.375V. I will try to lower it but if I remember correctly I tried 1.365 and it did not work.

Also, Is that a lot of Vdroop? 1.375 in Bios, yet its 1.344 and 1.284 in windows?

And last, I want to enable the power saving features, so I guess just enable them and run stability tests again ? Thanks Again !!!!
Edited by OneSlickDeal - 3/29/11 at 7:21am
post #250 of 713
Quote:
Originally Posted by OneSlickDeal View Post
Great guide btw. Got me to where I am. Nice work. Couple questions though.

Current settings: The rest left to default/auto

CPU Clock Ratio: 44x
CPU PLL Overvoltage: Disabled
Real-Time Ratio Change in OS: Disabled
Turbo Boost: Disabled
C1E: Disabled
C3/C6: Disabled
EIST: Disabled
CPU Vcore: 1.375

In Windows I have 1.344V at idle, and 1.284V at load.

Edit- Max temp on the hottest core was 64

First Question, is that high for 4.4? 1.375V. I will try to lower it but if I remember correctly I tried 1.365 and it did not work.

Also, Is that a lot of Vdroop? 1.375 in Bios, yet its 1.344 and 1.284 in windows?

And last, I want to enable the power saving features, so I guess just enable them and run stability tests again ? Thanks Again !!!!
Looks normal to me. What board are you using?
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