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4 months, won't boot to 4.25 anymore

post #1 of 44
Thread Starter 
This morning, my computer would not boot to 4.25 GHz. I have lowered it to 4GHz and am rerunning stability tests. I have used this computer since August at the specs listed in my sig rig. I have run it at 100% load for about 6-16 hours a day on molecular dynamics simulations. This is the first time I have had any trouble with it.

So, be aware, your computer (don't know if its the cpu or mobo or ram or psu) isn't assured to run oc'ed for years, could only last months.

I'm going to search the forum for some possible causes to this issue, but if you have an idea, let me know. Thanks guys.
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Big Dog
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post #2 of 44
cpu degration?
   
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The Singularity
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post #3 of 44
Quote:
Originally Posted by xioros View Post
cpu degration?
degradation, you mean.

And that sucks to hear bro.
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post #4 of 44
Thread Starter 
I don't know yet. I'm trying to hold off on saying that. I had to lower my clock today to post. Beyond that, its all conjecture.
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Big Dog
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post #5 of 44
Seems to be the only logical explanation if you havent changed any settings and havent updated any drivers or things like that...

Only other thing I could say is if you fold, your pc might be getting new work units that may cause instability.
post #6 of 44
Could be the VRM on your motherboard could be degrading, or cpu degradation. I vote the first, only way to test is by using the cpu on a different board with the same settings.

Are your temps already to high, bumping up the vcore should solve the problem, unless your temps are already pretty high, then i would just settle for the 4ghz mark.
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Casmatic
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post #7 of 44
Thread Starter 
I don't fold, and haven't touched the BIOS in probably at least 3 months.

I'm thinking its either the mobo or the cpu at this point. RAM would probably still be giving me trouble, and I seem to have stability at 4GHz with the RAM running faster than before (higher multiplier with lower base clock).

EDIT: My temps were sitting at 65 under full load at 4.25. At 4 they are barely hitting 59.
Big Dog
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Big Dog
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CPUMotherboardGraphicsRAM
4790k at 4.5GHz Asus Maximus VII Hero AMD Firepro W7000 Silicon Power 2 x 8Gb 2400 
Hard DriveHard DriveOptical DriveCooling
2xWD 1Tb 64Mb RAID 1 Samsung 840 Evo 250Gb Samsung DVD Under water 
OSMonitorKeyboardPower
Linux Mint / Win7 Pro Dell U3011 and 2007WFP  Filco Ninja Tenkeyless, red switches Crosair TX950W 
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post #8 of 44
To be honest my cpu seems to have its arse twitching at the minute, seems to keep crashing, and ive had to increase the vcore, ive only had it 7 months myself. but I have been folding and stuff on it, even then its only been at 1.28v and never goes over 75C.
post #9 of 44
If it is the CPU.. this is why I've been telling the Sandy Bridge buyers they're only asking for trouble with ~1.5vcore. This wasn't safe for 45nm, let alone 32nm.

Low temps do not make a chip impervious to high voltage.
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Why upgrade?
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Why overclock?!
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post #10 of 44
Thread Starter 
I just passed 20 runs of ITB at maximum (5345Mb). I'm at 160x25 and 1.368vcore. My memory is running at 1604 with 6-6-6-18 timing. I'm gonna start walking the base clock up and see if I get back to 4.25 or not.
Big Dog
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CPUMotherboardGraphicsRAM
4790k at 4.5GHz Asus Maximus VII Hero AMD Firepro W7000 Silicon Power 2 x 8Gb 2400 
Hard DriveHard DriveOptical DriveCooling
2xWD 1Tb 64Mb RAID 1 Samsung 840 Evo 250Gb Samsung DVD Under water 
OSMonitorKeyboardPower
Linux Mint / Win7 Pro Dell U3011 and 2007WFP  Filco Ninja Tenkeyless, red switches Crosair TX950W 
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CM HAF932 Razer Death Adder Asus Essense STX, HD555 
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Big Dog
(16 items)
 
  
CPUMotherboardGraphicsRAM
4790k at 4.5GHz Asus Maximus VII Hero AMD Firepro W7000 Silicon Power 2 x 8Gb 2400 
Hard DriveHard DriveOptical DriveCooling
2xWD 1Tb 64Mb RAID 1 Samsung 840 Evo 250Gb Samsung DVD Under water 
OSMonitorKeyboardPower
Linux Mint / Win7 Pro Dell U3011 and 2007WFP  Filco Ninja Tenkeyless, red switches Crosair TX950W 
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