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Overclocking and speedstep

Post Date: 2009-12-09

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Kevin View Drop Down
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  Quote Kevin Quote  Post ReplyReply bullet Topic: Overclocking and speedstep
    Posted: 09 Dec 2009 at 9:31pm
Hey all,
 
Recently got my new computer and it came with an i7 920 overclocked to 3.57 GHz. However, each time i turned on my computer it would freeze afte the starting windows page. I'd restart the computer holding down on the power button and it would work perfectly. The event log showed this error:
 
"Performance power management features on processor 1 in group 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware."
 
This would show up for all 8 processorss. Now I search the internet and it was pointed out that disabling speedstep sometimes caused this problem, but if it didn't cause restarts or freezes to ignore it.
 
I went into the BIOS and enabled speedstep. This seems to have corrected the error above. The BIOS still had all the original OC settings. Upon entering windows it showed that my processor was at 2.79 GHz.
 
Now my question is this, is the 2.79GHz my lower speed and it will increase back to 3.57GHz under load or do I need to change my overclock specs to something else?
 
Thanks,
Kevin
 
 
Overclocked Processor Settings

Processor Speed GHz: 3.75
CPU Multiplier: 20
Voltage CPU VCore: 1.35
VDroop Control: Yes
i7 - BCLK MHz: 179
i7 - Voltage QPI\DRAM: auto
i7 - Voltage QPI\PLL: auto
i7 - Voltage CPU VTT: 150
i7 - Voltage IOH Vcore: auto
i7 - Voltage ICH Vcore: auto
i7 - Voltage IOH/ICH I/O: auto
i7 - PWM Frequency: 800
780i/790i - Memory Clock Mode:
780i/790i - CPU FSB MHz:
780i/790i - Voltage FSB:
780i/790i - Voltage SPP:
780i/790i - Voltage MCP:

Motherboard BIOS: SZ2U
Video Card Driver: 191.07
Chipset Driver: CD
Sound Card Driver: CD
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Clinton View Drop Down
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  Quote Clinton Quote  Post ReplyReply bullet Posted: 09 Dec 2009 at 9:38pm
It will go back up under load. It only drops down whenever the CPU is idle.
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DST4ME View Drop Down
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  Quote DST4ME Quote  Post ReplyReply bullet Posted: 09 Dec 2009 at 9:55pm
speedstep does just that, it lowers the speed when its idle and when the power is needed it shoots it right back to 3.7
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venom View Drop Down
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  Quote venom Quote  Post ReplyReply bullet Posted: 09 Dec 2009 at 11:59pm
Even if that fixed your issue, you probably need a bit more vcore to avoid freezing issues in the future.
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Kevin View Drop Down
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  Quote Kevin Quote  Post ReplyReply bullet Posted: 10 Dec 2009 at 6:08pm

Thanks for the responses.

I also turn on the computer today afte the speedstep change and had the it freeze again. This time the error after the critical for rebooting without cleanly shutting down first, was "Audit events have been dropped by the transport. 0".
 
How much VCore would you suggest? And do you think that would stop the freezing upon startup?
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Kaleliar View Drop Down
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  Quote Kaleliar Quote  Post ReplyReply bullet Posted: 10 Dec 2009 at 6:15pm
With Vcore, one increment at a time. You really don't want to fry it.
Rock: "We're sub-standard DPS. Nerf Paper, Scissors are fine."
Paper: "OMG, WTF, Scissors!"
Scissors: "Rock is OP and Paper are QQers. We need PvP buffs."
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Kevin View Drop Down
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  Quote Kevin Quote  Post ReplyReply bullet Posted: 11 Dec 2009 at 8:42pm
By one increment at a time I assume you mean from 1.35 to 1.36 and so on? Keep increasing until it no longer freezes?
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DST4ME View Drop Down
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  Quote DST4ME Quote  Post ReplyReply bullet Posted: 11 Dec 2009 at 8:46pm
I would call DS and have them walk you thru this, you can fry your chip here and if you do, it won't be covered under warranty.
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Alex View Drop Down
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  Quote Alex Quote  Post ReplyReply bullet Posted: 11 Dec 2009 at 8:53pm
@Kevin,
 
You can push it up to 1.45v perfectly fine.
 
Jump it to 1.40v and see how that performs.
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venom View Drop Down
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  Quote venom Quote  Post ReplyReply bullet Posted: 14 Dec 2009 at 12:45am
Also try CPU VTT +175mv if that doesn't fix the freezing.
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Kevin View Drop Down
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  Quote Kevin Quote  Post ReplyReply bullet Posted: 22 Dec 2009 at 6:37pm
I bumped the VCore up to 1.4v and the CPU VTT to +175mv. Still freezing up right after the starting windows screen. Should I go up to 1.45v?
 
Any other ideas why it's freezing up?
 
Thanks,
Kevin
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justin.kerr View Drop Down
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  Quote justin.kerr Quote  Post ReplyReply bullet Posted: 23 Dec 2009 at 8:42pm
freezing is usually RAM related, or QPI speed related. Can you post more BIOS settings? all voltages QPI multi, RAM multi, CPUz screen shots of all the tabs?
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