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P95 8Hrs+ Stable i7 930 @ 4Ghz - Want Some Feedback & Advice from OCN

post #1 of 13
Thread Starter 
Okay Guys, So I finally got my i7 930 Stable @ 4Ghz under Prime 95 using my H70 with 1.282V. Now I need some Feedback from you on my Overclock settings. Please take a few mins to look at them below and tell me what do you think, and do advice me if or how I should tune them and if I should go for higher clocks. (I wanted to try for 4.2GHz )


- Prime95 Stable, Tested for 8 Hrs 30 Mins. Case Side Panel is Off, Temps Fluxcuate between 64 ~ 67C, but mainly stays under 70C. Idle Temps are in the high 20C's and low 30C's in Bios, High 30's in Windows / Real temp. And Immediatly After Shutting down Prime95 after a 8Hr Test the Temps drop to the low 40s or below.

- CPU Z shows Core Voltage is at 1.223V at 100% CPU load in Prime95. No Multiplier Drops, No Downclockng.
But at Idle / 0% load the CPU Z shows Core Voltage 1.282V



Components & Settngs
Motherboard - EVGA X58 LE / SLi3
Processor - i7 930 (D0)
CPU Cooling - H70
RAM - G.SKill RipJaws 1600Mhz 12GB DDR3 (6 Stiicks)


Quote:
Frequency Control
Dummy O.C. [ Disabled ]
Extreme Cooling [ Disabled ]
CPU Clock Ratio [ 21 X ]
CPU Host Frequency (Mhz) [ 191 ]
Target CPU Frequency 4018Mhz (191x21)
Target Memory Frequency 1530Mhz
MCH Strap [ Auto ]
CPU Uncore Frequency (Mhz) [ 3061MHz (16 X) ]
CPU Clock Skew [ 0 ps ]
Spread Spectrum [ Disabled ]
PCIE Frequency (Mhz) [ 100 ]
OC Recovery [ Disabled ]
Turbo Performance [ Disabled ]


Memory Feature
Memory SPD [ Standard ]
Memory Control Setting [ Enabled ]
Memory Frequency [ 1067Mhz / 2:8 ]
Target Memory Frequency 1530Mhz
Channel Interleave Setting [ 6 Way ]
Rank Interleave Setting [ 4 Way ]
Memory Low Gap [ Auto ]
tCL Setting [ Auto ] 11
tRCD Setting [ Auto ] 11
tRP Setting [ Auto ] 11
tRAS Setting [ Auto ] 88
tRFC Setting [ Auto ] 764
Command Rate [ Auto ] 2T



Voltage Control
EVGA VDroop Control [ With VDroop ] (Same as LLC)
CPU VCore [ 1.28750V ] 1.28750V
CPU VTT Voltage [ +125mV ] +125mV
CPU PLL VCore [ Auto ] 1.800V
QPI PLL VCore [ 1.250V ] 1.250V
DIMM Voltage [ 1.650V ] 1.650V
DIMM DQ Vref [ +0mV ] +0mV
IOH VCore [ 1.150V ] 1.150V
IOH/ICH I/O Voltage [ Auto ] 1.500V
ICH VCore [ Auto ] 1.100V


CPU Feature
Intel SpeedStep [ Disabled ]
Turbo Mode Function [ Disabled ]
CxE Function [ Disabled ]
Execute Disable Bit [ Enabled ]
Virtualization Technology [ Disabled ]
Intel HT Technology [ Enabled ]
Active Processor Cores [ All ]
QPI Control Settings [ Enabled ]
QPI Link Fast Mode [ Enabled ]
QPI Frequency Selection [ 4.800 GT/s ]


PnP/PCI Configuration
Maximum Payload Size ( 4096 )

Power Management Setup
ACPI Suspend Type [ S1(POS) ]
HPET Support ( Enabled )
HPET Mode ( 64-bit )


PC Health Status > SmartFan Function
CPU Fan Type [DC FAN (3 Pin)
CPU Fan Speed Control [Manual]
Manual Fan Speed, % [100]

Edited by TheBirdman74 - 10/19/11 at 5:03am
post #2 of 13
Yeah, I get the same thing on my computer. The voltage drops when its being worked more, may just be a CPU-Z thing? For cooling, however, you want to leave you side panel on. This helps with a more controlled air flow for your case. Not sure about the cooling that you have but it doesn't seem bad, I am more familiar with the SB series though.
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post #3 of 13
Is it an 11,11,11 memory kit? Apart from that I don't think there's much you really need to change if it's stable. I need a massive voltage increase to get from 4.0 to 4.2, you may have a better chip though.
Not SLi any more
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Not SLi any more
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post #4 of 13
Thread Starter 
Quote:
Originally Posted by B-rock View Post
Yeah, I get the same thing on my computer. The voltage drops when its being worked more, may just be a CPU-Z thing? For cooling, however, you want to leave you side panel on. This helps with a more controlled air flow for your case. Not sure about the cooling that you have but it doesn't seem bad, I am more familiar with the SB series though.
Thanks, well looks like its a vDroop or whatever they call it that causes the volts to drop under stress. I just found out about it myself ..Check this out for more info http://www.anandtech.com/show/2404/5

Quote:
Originally Posted by Darren9 View Post
Is it an 11,11,11 memory kit? Apart from that I don't think there's much you really need to change if it's stable. I need a massive voltage increase to get from 4.0 to 4.2, you may have a better chip though.
The memory kit is a all niner / cl9. I left the timing on auto, should I set them to 9 from 11? And what do you think of the rest of the settings ?

thanks
Edited by TheBirdman74 - 10/19/11 at 5:33am
post #5 of 13
Yep, if it's a 9,9,9 at 1600 kit you should set that. It looks like your well inside what's considered safe for everything voltage wise, you could try for more BCLK - if you manage to get over 200 you may need to loosen the memory from 9's. If your at 70C at now though make sure to keep an eye on it.
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post #6 of 13
Thread Starter 
Hey, Thanks man. Well I tried the below settings, had to raise the vCore a bit but after 10 - 20 mins of prime the temps go in the mid 70s and the cpu downclocks as the multiplier throttles back to 12X.

Here's what I tried,
196 x 21X = 4.1GHz
CPU VCore [ 1.3250V ] 1.3250V
QPI PLL VCore [ 1.275V ] 1.275V
IOH VCore [ 1.20V ] 1.20V
Core Voltage in CPUZ @ 1.247V

Why does this chip throttle / down clock at 70s? Isn't that a bit low? I mean the TJ Max is high 90's right? Unless I can stop it from throttling at 70's, I dont think i will be able to go any further. Any suggestions?
Edited by TheBirdman74 - 10/19/11 at 9:53pm
post #7 of 13
Quote:
Originally Posted by TheBirdman74 View Post
Hey, Thanks man. Well I tried the below settings, had to raise the vCore a bit but after 10 - 20 mins of prime the temps go in the mid 70s and the cpu downclocks as the multiplier throttles back to 12X.

Here's what I tried,
196 x 21X = 4GHz
CPU VCore [ 1.3250V ] 1.3250V
QPI PLL VCore [ 1.275V ] 1.275V
IOH VCore [ 1.20V ] 1.20V
Core Voltage in CPUZ @ 1.247V

Why does this chip throttle / down clock at 70s? Isn't that a bit low? I mean the TJ Max is high 90's right? Unless I can stop it from throttling at 70's, I dont think i will be able to go any further. Any suggestions?
Try to turn of all power-saving features. And 1.32 for 4.0 is too high. I can run 4.25 on 1.35.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by Shooting Star View Post
Try to turn of all power-saving features. And 1.32 for 4.0 is too high. I can run 4.25 on 1.35.
Typo sorry. I can run 191x21 = 4GHz on 1.282v.
But 4.1GHz (196x21) requires 1.325v. But then My Temps go above 70C ~ 75C and my CPU throttles. I disabled any power saving feature I could find, but its the motherboards Thermal Management that kicks in early, (its supposed to kick in around 90C but kicks in around 70C for me)



Just tightened the memory timings to 9-9-9-25-74 and now my temps have risen 4C at load.
post #9 of 13
Quote:
Originally Posted by TheBirdman74 View Post
Typo sorry. I can run 191x21 = 4GHz on 1.282v.
But 4.1GHz (196x21) requires 1.325v. But then My Temps go above 70C ~ 75C and my CPU throttles. I disabled any power saving feature I could find, but its the motherboards Thermal Management that kicks in early, (its supposed to kick in around 90C but kicks in around 70C for me)



Just tightened the memory timings to 9-9-9-25-74 and now my temps have risen 4C at load.
Turn off the motherboards & CPU's temp monitor program in BIOS.
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by Shooting Star View Post
Turn off the motherboards & CPU's temp monitor program in BIOS.
turned off all of them, Cx1, Turbo, Speedstep, you name it
Cant find any other options in the bios. its a EVGA board. Asked at the EVGA official topic at OCN. Sad it might be a BIOS bug or something.
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