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Help beginner with i7 950 4,5 Ghz overclock

post #1 of 9
Thread Starter 
Hey guys,

I have finished my first build and now i'm ready to overclock it.
I am totally new with overclocking so i need some help please.
The whole system is watercooled with a 480mm radiator, so i can get a high overclock right?!

I want to achieve 4,5 Ghz with the i7 950 on my Rampage 3 Extreme.

What are the maximum temps?

Can you guys give me some information on how to achieve that 4,5 Ghz?
What settings should i change in the BIOS and what voltages do i need to change?

I am first ocing my cpu and then my gtx580.
Edited by musi - 2/2/11 at 1:24pm
My System
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i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
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3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
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My System
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i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
Hard DriveOptical DriveOSMonitor
3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
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post #2 of 9
You won't get there, the 12GB of RAM is holding you back, and you would need either Sandy Bridge or a 980x to reach 4.5Ghz (or sub-zero).
    
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post #3 of 9
Like TurboHertz said, 12gb will be holding you back from getting there, but there still is a chance. What I would do, is follow this great guide: http://www.overclock.net/intel-cpus/...920-930-a.html It just the same thing with your i7 950. After you hit 4ghz, then just keep uppig the fsb by about 5-10 at a time, and stress test in prime. For tempatures, you should stay under 80c.
    
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post #4 of 9
Slight hijack, why is the amount of RAM a limiting factor? I'm stable at 4.25 gHZ (on air) with 12gb of RAM.
Home-build #1
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i7 950 @ 4.254 GHz 1.32v Asus Sabertooth x58 nVidia GTX 460 12gb Crucial 1333 
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Home-build #1
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post #5 of 9
Quote:
Originally Posted by musi View Post
Hey guys,

I have finished my first build and now i'm ready to overclock it.
I am totally new with overclocking so i need some help please.
The whole system is watercooled with a 480mm radiator, so i can get a high overclock right?!

I want to achieve 4,5 Ghz with the i7 950 on my Rampage 3 Extreme.

What are the maximum temps?

Can you guys give me some information on how to achieve that 4,5 Ghz?
What settings should i change in the BIOS and what voltages do i need to change?

I am first ocing my cpu and then my gtx580.
Not all CPU's are great OCers, but if you chip has what ittakes to get to 4.5 GHz here is another good guide that will get you there...
http://www.techreaction.net/2010/09/...-and-gulftown/
Good luck and have fun!!
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post #6 of 9
Quote:
Originally Posted by musi View Post
Hey guys,

I have finished my first build and now i'm ready to overclock it.
I am totally new with overclocking so i need some help please.
The whole system is watercooled with a 480mm radiator, so i can get a high overclock right?!

I want to achieve 4,5 Ghz with the i7 950 on my Rampage 3 Extreme.

What are the maximum temps?

Can you guys give me some information on how to achieve that 4,5 Ghz?
What settings should i change in the BIOS and what voltages do i need to change?

I am first ocing my cpu and then my gtx580.
Absolute max temp is 100 C, as others have said you should optimally stay under 80 C.

You'll have to up your CPU Vcore, QPI voltage, and possibly/probably your IOH voltage to have a prayer of hitting 4.5. You'll probably need something around ~1.45 vcore to hit 4.5, which is pushing it, even under water. As long as your temps are alright, though, you should be okay.

Quote:
Originally Posted by Keymaster4225 View Post
Slight hijack, why is the amount of RAM a limiting factor? I'm stable at 4.25 gHZ (on air) with 12gb of RAM.
The amount of memory isn't the limiting factor, it's the number of DIMMs you're using. Most people would get 12 GB by populating all the DIMM slots. That puts more strain on the IMC, which makes it much harder to stabilize at high clocks.
    
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post #7 of 9
Thread Starter 
I just use 3 DIMMs of memory, 3 times 4GB.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
Hard DriveOptical DriveOSMonitor
3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
PowerCase
Corsair AX1200 Little Devil PC v8 
  hide details  
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
Hard DriveOptical DriveOSMonitor
3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
PowerCase
Corsair AX1200 Little Devil PC v8 
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post #8 of 9
Your fine with 12GB. Heck I hit 4.4 with 6 X 2GB.
I would follow the guide posted above. It will be a good place to start.

As far as temps go, 80c is usually my maximum. If your at 80 after a few hours of Prime 95 then your good on that front.

Keep us updated with your progress please.
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Project BWR
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post #9 of 9
Thread Starter 
I will definately keep you guys updated. I will give it a try today..
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
Hard DriveOptical DriveOSMonitor
3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
PowerCase
Corsair AX1200 Little Devil PC v8 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.5Ghz 24/7 1.47v. Asus Rampage 3 Extreme (watercooled) GTX580 950/1900/2150 mhz Corsair Vengeance 12GB 1600Mhz 
Hard DriveOptical DriveOSMonitor
3* Samsung F3 1TB RAID Plextor 890SA Windows 7 Ultimate 64bit BenQ XL2410T 
PowerCase
Corsair AX1200 Little Devil PC v8 
  hide details  
Reply
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