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3770K Degradation? <SOLVED>

post #1 of 6
Thread Starter 
I've had this chip for a couple months now and have run a lot of stress tests (a real lot) I've tested stability using Prime95 and Aida64 no problem but the other day I tried OCCT. No matter what settings I used I could not get 4.7GHz stable. On my last attempt the system crashed and rebooted but the LED showed error 55 (no RAM) After playing around with it for a while I got it to boot but it would constantly crash at 4.7GHz. I set the BIOS to defaults and ran Aida64 for 6 hours to make sure.

Today I set the BIOS to my 4.7GHz settings but it blue screened with a WHEA_uncorrectable_error. I'm running Aida64 now but had to increase the offset to +0.06v (it was stable at +0.04v) I'm wondering if this is an indication of the chip degrading due to putting it under too much stress. I saw a video of an ASUS rep saying that tests like Prime95, OCCT etc are no good for Ivy Bridge chips (http://www.youtube.com/watch?v=4mkGQhE1o2w) High temps are not an issue for me. At 4.7GHz temps are around low/mid 40s.

What do you think?

UPDATE: 4.7GHz crashed @ +0.060v. I'm going to try a fixed voltage and see what happens. Hope I don't need to buy another chip
Edited by tw33k - 5/29/13 at 8:33pm
post #2 of 6
It still passes Prime and Aida, but fails OCCT now, or it fails them all now?
Ivy 5.0
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Ivy 4.8
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i7-3770k 5.0 24/7 Maximus V Formula EVGA GTX 690 G.Skill Trident X 2400 (2x8gb) 
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Ivy 5.0
(14 items)
 
Ivy 4.8
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-3770k 5.0 24/7 Maximus V Formula EVGA GTX 690 G.Skill Trident X 2400 (2x8gb) 
Hard DriveOptical DriveCoolingOS
Samsung 840 Pro 512GB Pioneer BD-RW Swiftech H220 Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
2 x NEC 30" Logitech G15 Corsair AX1200 NZXT Switch 810 
MouseAudio
Logitech G9x Logitech G51 
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post #3 of 6
Thread Starter 
I'm thinking there's something else wrong now. It crashes no matter which program I use at any OC. I'm going to switch to BIOS 2 and re-flash BIOS 1 and see if that helps.
post #4 of 6
Thread Starter 
I was right. The problem was not that the chip is degrading, it was the BIOS that was broken. I changed to a fixed voltage and after a few unsuccessful tests I left it idle and noticed that the voltage dropped to under 0.9v. Although the settings were correct for some reason it wasn't working. Switched to Bios 2 and re-flashed BIOS 1 and all is good again.

I used to be able to achieve this with LLC level 3 and an offset of +0.040v. Now at LLC level 3 the offset needs to be +0.020v but the VID remains 1.286. Looking at all my past results the problem occurred with the +0.040 offset. It appears +0.020 is accurate.
Edited by tw33k - 5/30/13 at 2:30pm
post #5 of 6
Chip degradation happens over many years with over clocks. Even then it will only require slight increases in voltage to keep it at the OC.

The processor will be the last part to go out - if ever.
post #6 of 6
Good news. Don't want to think my stability tests cause issues.smile.gif
Ivy 5.0
(14 items)
 
Ivy 4.8
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-3770k 5.0 24/7 Maximus V Formula EVGA GTX 690 G.Skill Trident X 2400 (2x8gb) 
Hard DriveOptical DriveCoolingOS
Samsung 840 Pro 512GB Pioneer BD-RW Swiftech H220 Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
2 x NEC 30" Logitech G15 Corsair AX1200 NZXT Switch 810 
MouseAudio
Logitech G9x Logitech G51 
  hide details  
Reply
Ivy 5.0
(14 items)
 
Ivy 4.8
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-3770k 5.0 24/7 Maximus V Formula EVGA GTX 690 G.Skill Trident X 2400 (2x8gb) 
Hard DriveOptical DriveCoolingOS
Samsung 840 Pro 512GB Pioneer BD-RW Swiftech H220 Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
2 x NEC 30" Logitech G15 Corsair AX1200 NZXT Switch 810 
MouseAudio
Logitech G9x Logitech G51 
  hide details  
Reply
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