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2500k processor degradation

post #1 of 53
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Ok so I'm sure most of you are familiar with processor degradation, however I've never experienced it first hand so I'm going to share my story. I had just built the rig in my sig last weekend, I was overclocking and got it to where I wanted at 5.0ghz @ 1.43v with LLC @ 100%. On this Asus Maximus IV Extreme Z there are percents for LLC, I'm used to Levels on Gigabyte boards. Anyways, so I had everything where I wanted it and ran every stress test in the book all for 20+ hrs. For example, 20+ hours of every Prime95 test possible, Small ffts/blend/etc.
500 runs of IBT at very high. Everything was good and I was very happy

So this board comes with the Probelts so you can see the actual real time voltage. I hooked them up and it's been 4-5 days now and over that course of time I've noticed the vcore increasing ever so slightly day to day.

1.434 to 1.436 to 1.439 to 1.442 etc

Now today I woke up and noticed it jumping to 1.45 at times. I feel like it's just a matter of time now until it's at 1.5v. So I just set it to stock for now until I decide what I'm going to do. Just thought I'd share my experience
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post #2 of 53
That isn't degradation in its most obvious form (loss of stability)
Maybe electron migration is making it do something weird :O
    
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post #3 of 53
yeah isn't the max core voltage of a 2500k only 1.375v? I would try to RMA it or something because once degradation starts even at stock clocks it still happens so you lose OC potential and eventually stock potential.
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post #4 of 53
The voltage should only keep going up like that if you have it set to auto. Its possible that you have the LLC set too high, try lowering it and seeing if you get smaller voltage fluctuations.

You will always get differences in cpu temperatures when in windows, mine goes from say 1.39 to 1.41.

Oh and CPU degradation is more sort of saying needing 1.30v for 4ghz, then 6 months later you require 1.35v for 4ghz. Its the needing extra cpu volts thats a sign the cpu is degrading, aswell as hardware failures such as more apparent Blue screens of death.

Theres no way your 2500k has degraded in the space of a week with those voltages you've set, so i wouldnt worry too much
post #5 of 53
Quote:
Originally Posted by DSP1 View Post
yeah isn't the max core voltage of a 2500k only 1.375v? I would try to RMA it or something because once degradation starts even at stock clocks it still happens so you lose OC potential and eventually stock potential.
The 24/7 max safe is approximately 1.425V, but some people think this is conservative and go higher for 24/7 use. The absolute maximum is supposed to be 1.520V, but some people have exceeded it with no problems.


Quote:
Originally Posted by $ilent View Post
The voltage should only keep going up like that if you have it set to auto. Its possible that you have the LLC set too high, try lowering it and seeing if you get smaller voltage fluctuations.

You will always get differences in cpu temperatures when in windows, mine goes from say 1.39 to 1.41.

Oh and CPU degradation is more sort of saying needing 1.30v for 4ghz, then 6 months later you require 1.35v for 4ghz. Its the needing extra cpu volts thats a sign the cpu is degrading, aswell as hardware failures such as more apparent Blue screens of death.

Theres no way your 2500k has degraded in the space of a week with those voltages you've set, so i wouldnt worry too much
But if it's on Auto, then why is it continually getting higher day by day?
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post #6 of 53
Quote:
Originally Posted by DSP1 View Post
yeah isn't the max core voltage of a 2500k only 1.375v? I would try to RMA it or something because once degradation starts even at stock clocks it still happens so you lose OC potential and eventually stock potential.
It's actually 1.52v per Intel themselves...where'd you get 1.375 from?Research is essential,
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post #7 of 53
Quote:
Originally Posted by TwoCables View Post
The 24/7 max safe is approximately 1.425V, but some people think this is conservative and go higher for 24/7 use. The absolute maximum is supposed to be 1.520V, but some people have exceeded it with no problems.



But if it's on Auto, then why is it continually getting higher day by day?
To be perfectly honest I just think that the OP hasnt noticed the cpu volt fluctuating when hes looked at it initially. 1.434 to 1.442 is only like 4 cpu increments of 0.002v or so. I reckon that could be happening down to LLC level too high.

Mine swings from 1.39 to 1.41ish volt with LLC 4/5.
post #8 of 53
Quote:
Originally Posted by $ilent View Post
To be perfectly honest I just think that the OP hasnt noticed the cpu volt fluctuating when hes looked at it. 1.434 to 1.442 is only like 4 cpu increments of 0.003v or so. I reckon that could be happening down to LLC level too high.

Mine swings from 1.39 to 1.41ish volt with LLC 4/5.
But kskwerl said that he has a Probe hooked up to it (a physical probe). On day one it was showing about 1.434V. On day 2, it was showing about 1.436V. On day three, 1.439V. On day four, 1.442V. Today, it is sometimes reaching 1.45V

I think that if he were still seeing 1.434V today, then he would be like "But I'm still seeing 1.434V too".
Edited by TwoCables - 10/28/11 at 1:20pm
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post #9 of 53
Thread Starter 
Thanks for all the input guys, it just worried me because I have a multimeter hooked up and day to day the voltage is increasing even if it's by very small amounts.
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post #10 of 53
Thread Starter 
vcore is also not set to auto its 1.43 in BIOS
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Haswell
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Sandy bridge
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All 290 Everthing
(45 items)
 
CPUMotherboardGraphicsRAM
i7-4770 Asus Maximus VI Gene Z87 Asus GTX780 DirectCU II Corsair Dominator Platinum 16GB (2x8GB DDR3 1600) 
Hard DriveOptical DriveCoolingOS
Corsair Force GS 240GBx2 ASUS CD/DVD-RW Corsair H80i Windows 8.1 64-bit 
MonitorKeyboardPowerCase
ASUS VG248QE HHKB Professional 2 Corsair AX860i Silverstone Fortress 
MouseMouse Pad
Roccat Kone XTD XTRAC PADS Ripper XXL 
CPUMotherboardGraphicsRAM
i5 2500k Asus Maximus IV Gene-Z Gen3 MSI N570GTX Twin Frozr III Muskin Radioactive 8GB (2x4GB) 1600 7-9-8-24 
Hard DriveCoolingOSMonitor
Crucial M4 64gb Phanteks PH-TC14PE_RD Windows 7 Ultimate 64-bit Samsung SyncMaster P2770 
PowerCaseAudio
Corsair HX850 NZXT Phantom 410 CA-PH410-B1 Red Steel Schiit Bifrost DAC -> Schiit Lyr -> LCD-2 Rev.2 
MotherboardGraphicsGraphicsGraphics
Asrock Pro BTC Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 Sapphire Tri-x 290 MSI Gaming 290 MSI Gaming 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 
GraphicsGraphicsGraphicsGraphics
MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 Sapphire Tri-x 290 
GraphicsGraphicsGraphicsGraphics
MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 MSI Gaming 290 MSI Gaming 290 MSI Gaming 290 
GraphicsGraphicsGraphicsGraphics
MSI Gaming 290 MSI Gaming 290 Sapphire Tri-x 290 Sapphire Tri-x 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 
GraphicsGraphicsGraphicsGraphics
Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 Sapphire Tri-x 290 
Graphics
Sapphire Tri-x 290 
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