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i7 3820 - 4820 Overclock Club - Page 331

post #3301 of 6491
Quote:
Originally Posted by X79Extreme7UK View Post

So we are going for low Vcore @ 5Ghz...ok typer.gif ......I got this helmetsmiley.png


I will try for anything lower for this chip later...
Btw; ambient was 29~30 C

Now run that voltage through IBT & Prime95.
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post #3302 of 6491
Thread Starter 
Quote:
Originally Posted by Wookieelover View Post

Now run that voltage through IBT & Prime95.
He can and he will trust me dude wink.gif
post #3303 of 6491
Some advice please.

I have core LLC set to medium, which gives me some vdroop (High always increases vcore under load, so figure that isn't the point of it) I have vtt and vcssa set to 1.15v. CPU PLL set to 1.65.

Running on a RIVF I can get 4.75GHz with 1.37v on the core.

However, to get to 4.875GHz I have to set the vCore to 1.41v. So that is +0.04v extra to get IBT to run 30times on High. Underload it vdroops down to about 1.392-1.400v

Does that sound like I've hit the wall of the processor when it needs so much more vcore?

Temps with an Antec 920 are 78-71-70-74
Edited by lnoton - 6/11/13 at 12:07am
2011
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CPUMotherboardGraphicsGraphics
i7 3820 Rampage 4 Formula EVGA 680 EVGA 680 
RAMHard DriveHard DriveHard Drive
TeamGroup Vertex Samsung Samsung 
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Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
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BeQuiet 750W Dark Power Pro HAF-X 
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2011
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RAMHard DriveHard DriveHard Drive
TeamGroup Vertex Samsung Samsung 
CoolingOSMonitorKeyboard
Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
PowerCase
BeQuiet 750W Dark Power Pro HAF-X 
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post #3304 of 6491
Thread Starter 
Quote:
Originally Posted by lnoton View Post

Some advice please.

I have core LLC set to medium, which gives me some vdroop (High always increases vcore under load, so figure that isn't the point of it) I have vtt and vcssa set to 1.15v. CPU PLL set to 1.65.

Running on a RIVF I can get 4.75GHz with 1.37v on the core.

However, to get to 4.875GHz I have to set the vCore to 1.41v. So that is +0.04v extra to get IBT to run 30times on High. Underload it vdroops down to about 1.392-1.400v

Does that sound like I've hit the wall of the processor when it needs so much more vcore?

Temps with an Antec 920 are 78-71-70-74
Up your LLC's to high or ultra or extreme You really don't want any vdroop wink.gif
Up to 1.22 on vtt and 2nd auto ( you don't have to you can run it with same volts as vtt )
vscca no high than 1.2v .Don't forget about the level of LLC you use this will add to vtt and vscca volts
Change multi or try 4.9 up vcore to 1.42 - 1.45 . But really you can only go so far with temps / clocks with that cooler
Are you running a costarica 3820 ? on that chip I got P95 stable 4.9@2400@1.45vcore in bios

Heres what vcore I get at that clock right now .....
http://valid.canardpc.com/2829320 wheee.gif
Havent primed it yet wink.gif
post #3305 of 6491
Thread Starter 
Quote:
Originally Posted by revro View Post

i am so so scared of homecinemas avatar eh-smiley.gif
what max temps do you guys use at your OC?

best
revro
My avatar..........an accurate depiction of meh aaevil.gif
On this chip its between 53c - 59c on core 0 @ 5 gigs@21c room temp ( winter here )
post #3306 of 6491
Thanks.

It's a malay.
2011
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TeamGroup Vertex Samsung Samsung 
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Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
PowerCase
BeQuiet 750W Dark Power Pro HAF-X 
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2011
(14 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3820 Rampage 4 Formula EVGA 680 EVGA 680 
RAMHard DriveHard DriveHard Drive
TeamGroup Vertex Samsung Samsung 
CoolingOSMonitorKeyboard
Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
PowerCase
BeQuiet 750W Dark Power Pro HAF-X 
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post #3307 of 6491
Thread Starter 
Quote:
Originally Posted by lnoton View Post

Thanks.

It's a malay.
doh.gif
post #3308 of 6491
is that not good?
2011
(14 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3820 Rampage 4 Formula EVGA 680 EVGA 680 
RAMHard DriveHard DriveHard Drive
TeamGroup Vertex Samsung Samsung 
CoolingOSMonitorKeyboard
Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
PowerCase
BeQuiet 750W Dark Power Pro HAF-X 
  hide details  
Reply
2011
(14 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3820 Rampage 4 Formula EVGA 680 EVGA 680 
RAMHard DriveHard DriveHard Drive
TeamGroup Vertex Samsung Samsung 
CoolingOSMonitorKeyboard
Antec 920 Windows 7 64-bit Benq XL2410T QPAD MK-85 
PowerCase
BeQuiet 750W Dark Power Pro HAF-X 
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post #3309 of 6491
Thread Starter 
Quote:
Originally Posted by lnoton View Post

is that not good?
I guessed wrong that's all man . Malay seems to have a better solder job on IHS better temp spread thumb.gif
post #3310 of 6491
Thread Starter 
Decided to get new pump / res . Exsisting one cuts out on boot in every now and then . X20 750 has done a good job . But with 1.8m head pressure compared to 7.7m with this one should be a significant temp drop / improvement .... I hope..... redface.gif
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