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vcore going down? help please

post #1 of 25
Thread Starter 
Hey guys,

When I stress test my Q6600 at 3.6GHz with either LinX or Prime my vcore goes from say 1.52v all the way down, slowly to like 1.44v.

I've done the pencil mod on this Asus P5K years ago and it used to help.

I've enabled load line calibration in bios but it doesn't help (and never did).

The vcore in bios is set to 1.6v and it reads 1.568v idle and then under load it trickles slowly all the way down to like 1.44v or lower, causing a blue screen 0x124.

At first i thought it was the Cooler Master Xtreme Power Plus 600w I was using but I swapped in my Antec True Power New 750w and it does the same thing on both PSU's.

I tested stock settings with 1.32v bios and 1.288v idle in windows and it passes 20 runs of LinX with half my memory selected.

So the processor itself is fine at stock, but when I overclock to 400x9 (3.6GHz) it has this problem.

Is this a case of really bad vdroop? or is my board dying? I can't even test for stability because the vcore itself doesn't stabilize at all when I test at 3.6GHz.

What is the deal? Is there anyway to rectify this problem?

Is the voltage regulation on my board toast?

Help please
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post #2 of 25
How long does it take to droop down like that?
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post #3 of 25
Thread Starter 
Mere seconds. But it only does that when I do > 1.5v at 3.6ghz

My vdroop is bad for example I set 1.4375v in bios and in windows idle it's 1.40v under load it's 1.38-1.37v load

It's vdroop right? A really bad case of it correct?

EDIT: for example in testing 3.4GHz I'm setting 1.46v bios it shows 1.44v idle and load 1.40 and now it's at 1.38v
Edited by jam3s - 12/23/10 at 9:16pm
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post #4 of 25
Quote:
Originally Posted by jam3s View Post
Mere seconds. But it only does that when I do > 1.5v at 3.6ghz

My vdroop is bad for example I set 1.4375v in bios and in windows idle it's 1.40v under load it's 1.38-1.37v load

It's vdroop right? A really bad case of it correct?
The idle voltage is actually the result of vDrop. Then the full-load voltage is the result of vDroop, because it's drooping down from the idle voltage. So your vDrop and Droop are pretty normal. But it would be much worse if you had an NVIDIA chipset!

Anyway, if it's mere seconds, then I think it's normal. I've always seen this myself. It seems like it just takes a few seconds for the load to really get going, kinda like a car trying to accelerate up to 60MPH.
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post #5 of 25
Thread Starter 
Haha yeah ok I'll report back I'm settin 1.52v bios and idle it's 1.50v

Under load I hope it will stay > 1.4v

What a bad board lol
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post #6 of 25
Quote:
Originally Posted by jam3s View Post
Haha yeah ok I'll report back I'm settin 1.52v bios and idle it's 1.50v

Under load I hope it will stay > 1.4v

What a bad board lol
Heh, it sounds fine to me. After all, you're using a pretty high voltage there.
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Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
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KeyboardPowerCaseMouse
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post #7 of 25
I think vdroop is called LLC or LCC on non EVGA boards...

and vdroop ON = LLC off
and vice versa...
post #8 of 25
Thread Starter 
yeah honestly i think it's the board crapping out on me.

I can't even get it to stably give 1.4v for 3.4GHz.

It oscillates from like 1.55v to 1.36v

It's awful.

Time for a new board
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post #9 of 25
Quote:
Originally Posted by EduFurtado View Post
I think vdroop is called LLC or LCC on non EVGA boards...

and vdroop ON = LLC off
and vice versa...
Vdroop is called vDroop.

LLC is Load Line Calibration which is a feature that manufacturers were forced to add to their motherboards due to the demand of consumers (the belief was that if it didn't have LLC, it wasn't a good board, so the manufacturers decided to avoid losing out on sales due to this). So when LLC is enabled, then it can do one of four things:
  • Reduce vDroop
  • Eliminate vDroop
  • Reverse vDroop and cause vRise instead
  • Introduce instability and other irritating problems (unlikely, but it has happened)

But when LLC is left disabled, the system is following Intel's specifications. So the only time it's really safe to use LLC is if you're using a high-end board.

Quote:
Originally Posted by jam3s View Post
yeah honestly i think it's the board crapping out on me.

I can't even get it to stably give 1.4v for 3.4GHz.

It oscillates from like 1.55v to 1.36v

It's awful.

Time for a new board
During LinX/IBT? If so, then this is normal. But if it's during one of Prime95's tests, then I would expect it to remain at the highest voltage.
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #10 of 25
Thread Starter 
Yeah im positive it's the board

Next stop: UD3P
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