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My i7 950 4GHZ OC and Power Saving...

post #1 of 10
Thread Starter 
Hello guys.
I just oc'd my cpu to 4 ghz. And after stable settings founded , I turned on power saving options like C1E and EIST. (No Bsod since I turned them on , 2 weeks)
HT is ON.
After I turned on C1E AND EIST , my idle temps reduced to 42-38 C. (Before , it was 46-41 C while power savings OFF).

It idles at 2285 MHZ. 190*12.
I dont know the minimum IDLE working MHZ on I7 950's. Is there a way to reduce the working MHZ little bit more ? Something like 1500 MHZ or something ?

My vcore is 1.280 V. 21*190.
QPI is 1,3.
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post #2 of 10
12 is the lowest multiplier your cpu can use. Have you you already set Vcore with offset voltage ? If not then C1E probably isn't able to use lower Vcore when idling.
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post #3 of 10
Thread Starter 
Sorry but whats the meaning of offset voltage ?
I set my vcore at 1.275~ at BIOS myself , its not auto. I think you mean that.
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i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
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post #4 of 10
What I mean is Cpu Voltage Control option in bios ( both my Asus X58 boards have this ) from where you can choose to use Manual or Offset option. C1E only works properly with Offset option.
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post #5 of 10
Thread Starter 
OK I use manual option with 1.275~ vcore.
If I set it to auto , then will it reduce the MHZ while idling ?
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i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
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post #6 of 10
Thread Starter 
All I tried to find the optimum voltage while overclocking but if I set it to Auto , why did we all try to find the min voltage before ?
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post #7 of 10
You are talking about Cpu Voltage option in bios, Cpu Voltage Control option is just above that if your bios has it.
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Shinobi XL
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Raven RV03
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post #8 of 10
Thread Starter 
There is CPU VOLTAGE OCP in the BIOS and its enabled. I couldnt find cpu voltage control
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Thermaltake Frio win 7 x64 ACER H235H thermaltake element g 
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Night Crawler
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CPUMotherboardGraphicsRAM
i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
CoolingOSMonitorCase
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post #9 of 10
I do remember that I saw someone with Rampage III Extreme complaining about that option missing from his bios, maybe it's the same with Rampage III Formula. In that case your out of luck, there is no way to make C1E lower Vcore while idling. You will just have to settle with speedstepping only.

edit. Found it : http://www.asusrog.com/forums/showth...h-manual-Vcore
Edited by mm67 - 6/18/11 at 1:03pm
Shinobi XL
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CPUMotherboardGraphicsRAM
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CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
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Shinobi XL
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Cosmos 2
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Raven RV03
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CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
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post #10 of 10
Thread Starter 
Hmm , so it will keep the 190 BCLK all the time and reduce the multiplier itself only.
So the minimum idle MHZ for me is the 2285 MHZ. 190*12 when I turn on the power saving options.
THANKS DUDE
Night Crawler
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
CoolingOSMonitorCase
Thermaltake Frio win 7 x64 ACER H235H thermaltake element g 
  hide details  
Reply
Night Crawler
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHZ (21*200 & 1,36V HT Off) Rampage III Formula GTX680 6 GB / 8-8-8-20 KINGSTON 
CoolingOSMonitorCase
Thermaltake Frio win 7 x64 ACER H235H thermaltake element g 
  hide details  
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