High Vcore for stabilitly, new BSOD's, time for new CPU??

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SkruDe

SkruDe

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Hello,

I've been running a 3930k now for about about 20 months at 4.5GHz. Unfortunately, when I did my original overclocking some 20 months ago, I was not for the life of me able to get stable at 4.5GHZ at under a 1.42 Vcore. Which, the number I have come to learn is acknowledged as being almost unacceptably high for 4.5Ghz. So, my assumptions was just I didn't get lucky on the CPU chip lottery.

Lately (started about 2 months ago), I started getting CPU related BSOD's. "A clock interrupt was not received on a secondary processor.........."

Removing my overclock solved the BSOD's, which to me made me think, the CPU chip has slowly but surely started degrading over time, and now it's time to up the voltage on it to get it back stable. But, at 1.42 Vcore already, is my chip bad enough to justify buying a new one to replace it? And save this one for a non-overclocked machine.

Currently, I have my rig halfway disassembled on my kitchen table as my power supply recently failed on me and I ordered a new AX1500i to replace my X1250, so while I have it apart I am going to flush and inspect watercooling loop, reapply some thermal paste, clean up everything inside (not too much to clean), and I am heavily considering replacing the 3930k I have inside it with a new chip.

Don't think of this so much as spending money, rather if it would be beneficial for me considering the obvious (or at least what I think and assume to be obvious) degrading of my CPU chip. I don't want $$ to be an issue, I just want whats best for me and my rig and performance.

Thanks


Current Specs:
ASUS Rampage IV Extreme MoBo
i7-3930k @ 4.5Ghz (1.420 Vcore)
G.Skill 1600 Mhz 32GB Trident-X RAM (4x8GB)
Sapphire 7970 Ghz Edition 6GB Graphics cards (x2 Crossfired) @ 1200Mhz O.C.
Intel SSD (Windows, Boot)
Samsung 850 SSD (Games, Programs)
WD 1TB (Bulk Storage)
WD 1TB (Back-Up)
XSPC Custom CPU watercooling loop /w push/pull radiator
New to be installed Corsair AX1500i Power Supply

Thanks.
 
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nikoli707
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nikoli707

nikoli707

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1.42v with xspc with i assume 240mm rad? that is more than acceptable. 1.35v and 1.40v go completely out the door with an extreme cooling setup. sandy bridge is not ivy/haswell, it can handle voltage much better.

a dying power supply can very easily affect voltage regulation causing bsods for your overclock. i would restart the overclocking process with your new power supply and run your chip out to its end.
 
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SkruDe

SkruDe

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Hello Nikoli, thank you for your response.

Yes, I do have the XSPC RX240 radiator, and only my CPU is on the loop. Push/Pull with 2 fans below and 2 fans above radiator.

My new power supply is installed as of last night. The components I ordered for my water loop maintenance won't be here till middle next week, so I'm going to go ahead and hook the rig back up and see how it goes for the next half week with my new PSU. Next weekend I'll have to take it down again for flush and clean of loop when my stuff gets here.

That's good to hear that I may be okay on voltage. I'll probably run Prime again when I hook back up after work and see how far I make it. And up voltage accordingly to get stable again (that is if the PSU doesn't fix the problem).

Thanks for your reply and help.

 
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nikoli707

nikoli707

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i would restart the overclocking process all over. first seeing how far you can get with stock svid automatic voltage while being stable. then manually adjusting the vcore up for each ratio/multiplier you move up, one step at a time.
 
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SkruDe

SkruDe

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You may have been right. I replaced my, what appears to be dying Seasonic X-1250, with a brand new Corsair AX1500i power supply and the last couple days I have been running flawlessly. It appears my PSU was causing havoc on my system. Going to give it a couple more days to be sure, but I haven't been able to replicate my crashers, power shut offs, and BSOD's since I swapped PSU's. I could usually force that stuff playing ESO on Ultra with 7680x1440p resolution, but now it runs perfectly. So looks like I am good now :)
 
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nikoli707

nikoli707

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you should still start over with the overclocking process to net yourself the lowest possible vcore while being stable at each multiplier stepping starting at 4.4ghz, 4.5ghz, 4.6ghz etc. after 1.35v@80c, your going to want to taper down your max temp, like 1.40v@72c or 1.42v@68c.
 
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SkruDe

SkruDe

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Thanks for the help Nikoli. I gave your last post best answer as it has a quote with all the information in it.

Basically, as you said the PSU seems to have been messing with voltage regulation, and when replaced I can't replicate the BSOD's or crashes.

I will take your advice and try to see if I can level off Vcore now to a lower number through revisiting the process of overclocking for stability.

Again, thanks for the help and advice.
 
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