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i7 950 stable at 4GHz? - Page 2

post #11 of 25
Sun, at 4 GHz all my voltages are in auto except dram which is set at 1.63v without VDroop.

my vcore in bios is showing 1.175 which is stock settings i think.

btw, i have an evga mobo and i am using 23 X 175. at this setting i can either turn on/off HT. With it on my temps are like 5 -7C higher.
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post #12 of 25
Thread Starter 
Getting a 0x4C BSOD every time.
post #13 of 25
I have the same motherboard but with an i7 930 D0 and 1600 MHz Corsair RAM. Dont know if it'll help but i posted some of my bios settings below..
Code:
CPU PLL Voltage........................[1.80]
QPI/DRAM Core Voltage..................[1.218753]
IOH Voltage............................[1.12]
IOH PCIE Voltage.......................[1.50]
ICH Voltage............................[1.20]
ICH PCIE Voltage.......................[1.50]
DRAM Bus Voltage.......................[1.64]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[800mv]
CPU Clock Skew.........................[300ps]
    
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post #14 of 25
Thread Starter 
Quote:
Originally Posted by Twitch18;15227794 
I have the same motherboard but with an i7 930 D0 and 1600 MHz Corsair RAM. Dont know if it'll help but i posted some of my bios settings below..
Code:
CPU PLL Voltage........................[1.80]
QPI/DRAM Core Voltage..................[1.218753]
IOH Voltage............................[1.12]
IOH PCIE Voltage.......................[1.50]
ICH Voltage............................[1.20]
ICH PCIE Voltage.......................[1.50]
DRAM Bus Voltage.......................[1.64]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[800mv]
CPU Clock Skew.........................[300ps]

What's your vcore? Same as your signature or just auto?
post #15 of 25
Hi,

Run a 930 and here's settings for my summertime or high ambient clock.

Might help, as use them all the way to 4.51.
Disregard the (in the yellow and red settings) as run three Rads at
600.5 and run cool at these clocks.

Run 4.51 in the winter as cool ambients;)
But 1.41 CPU and 1.31 Dram voltage.
Last pics High and low ambient setting.

You shouldn't have any trouble at all with that chip:)

Later:D
Edited by Irocing - 10/8/11 at 5:05pm
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post #16 of 25
Quote:
Originally Posted by SunOfStorms;15228328 
What's your vcore? Same as your signature or just auto?

my vcore for 4.0GHz was set just higher than 1.20v I believe..
    
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post #17 of 25
Thread Starter 
The i7 930 seems to hit 4GHz at a much lower vcore than the i7 950 (from what I've read.)
post #18 of 25
were you able to get it stable at 4GHz?? around 1.30v for 4GHz is pretty normal.

Try the settings I posted earlier (added below what you should set values to), maybe having the voltages as auto instead of having set values is messing with your overclock... also the last 2, amplitude and skew, should help with stability (according to the 920 and 930 overclock thread)
Code:
IOH PCIE Voltage.......................[[B]1.50[/B]]
ICH PCIE Voltage.......................[[B]1.50[/B]]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[[B]800mv[/B]]
CPU Clock Skew.........................[[B]300ps[/B]]

Edited by Twitch18 - 10/9/11 at 8:40pm
    
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post #19 of 25
Quote:
Originally Posted by SunOfStorms;15219419 
Thanks for the information. Will check it out!



I've only used the x21 multiplier because everywhere I read they always use it and they always say it's the most stable.

That 21x is used for the 920's and 930's in there overclocking guides. I have my 950 at 4ghz on my work pc. I will upload my bios settings for you tomorrow and you can compare. I use 23x 174blck and only need 1.250v with a cooler master V8 and stay under 76c under load. the 23x is much easier to use than 21x. I've tried 20x 200 and that needed 1.325v and was hitting 85c, and it wasn't really any faster. I use Autodesk Inventor Suite 2012 and that's multi threaded and uses all 8 threads when creating 3d models and rendering video/pictures.

23x 174 is real easy compared to the other settings. On my tech bench at home on water I had a 950 running at 4.44ghz and under 80c load, but I don't have those bios settings any more.

What kind of cooling you using?
Edited by Hambone07si - 10/9/11 at 9:01pm
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post #20 of 25
http://www.overclock.net/intel-cpus/959172-i7-950-4-0ghz.html - go down to like the 10th post; i uploaded all the links that i used to get mine over 4.0. Hope it helps.
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