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6700K - how far is safe?

Sixense

Sixense

Sixense

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28 Aug 2014
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177
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Lancs
Right now I'm running it at 4.4GHz at 1.308v, it needs something like 1.34v for 4.5 and over 1.36v for 4.6 (benches stable more or less, games crash in < 5 min, basically it can only POST under those frequencies), is mine just not a good clocker or just needs even more volts? How much volts is safe for 6700K? It crashes if I put anything less than 1.25v while stock 4.0 GHz.

I guess it's cool at 65'C under AIDA Stability test for 10 minutes, cooled by Alpenfohn Matterhorn in Phanteks Evolv ITX case, stock 200mm fan and one top 140 intake and rear 140 exhaust Akasa Vipers, plenty of airflow I think. Thinking of swapping front 200mm for 1 or 2 Vipers, can't put 2nd fan on top, needs like 2mm more clearance top of cooler >.<
 
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I think anything under 1.4v is pretty safe.

Sounds a high voltage for 4.4ghz though. I have mine at 4.6ghz and 1.29v. Maybe i got a good chip.
 
I have similar voltages, mine isn't a particularly good oc'er but it runs cool at perfectly stable fully realbenched at 4.5 with around 1.35v

If temps are low enough I'm more than happy with that
Wouldn't notice the 0.1 extra oc in real world performance anyway!
 
Drollic said:
I wouldn't go beyond 1.35v for long term 24/7.
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Define 'long term' :D My pc is usually on twice a day a few hours each time, before and after work. Then there's weekends, pc is on for like 60-70 hours straight. I guess I'll see how high it can go up to 1.4v, if I can get 4.6 (or 4.7 :o) stable, I'll be a happy bunny :D

I'm relieved it can go higher volts than Haswell, I was a bit unsure trying 1.36v, read too much about how anything over 1.3v can damage the CPU.
 
Sixense said:
Define 'long term' :D My pc is usually on twice a day a few hours each time, before and after work. Then there's weekends, pc is on for like 60-70 hours straight. I guess I'll see how high it can go up to 1.4v, if I can get 4.6 (or 4.7 :o) stable, I'll be a happy bunny :D

I'm relieved it can go higher volts than Haswell, I was a bit unsure trying 1.36v, read too much about how anything over 1.3v can damage the CPU.
Click to expand...

As in you intend to use that voltage setting permanently.
 
So, tried 1.4v, 4.6 crashes 10 seconds into Realbench, Cinebench crashes straight away, didn't even try any games lol, 1.35v 4.5GHz passed Realbench and Cinebench (959 yey), will probably keep it for now, try some gaming, maybe dial down voltage if I can a bit. I noticed it's a R0 stepping, what's that mean?
 
Seems a bit pointless to increase the voltage so much for an extra 100 MHz that you're never gonna notice in 24/7 use. However, if you're just trying to find your chip's limits then fair enough.
 
Sixense said:
So, tried 1.4v, 4.6 crashes 10 seconds into Realbench, Cinebench crashes straight away, didn't even try any games lol, 1.35v 4.5GHz passed Realbench and Cinebench (959 yey), will probably keep it for now, try some gaming, maybe dial down voltage if I can a bit. I noticed it's a R0 stepping, what's that mean?
Click to expand...

Sounds like you got a real potato of a CPU there.

Most 6700K's do 4.6 with 1.29-1.32v. Mine does 4.7 @ 1.33v
 
Mine does 4.7 @ 1.38v. I can get away with lower volts and everything seems to run fine under normal usage but I wasn't satisfied with stability. I could get a two hours into a stress test but then it would just give an error. This is why I have it at 1.38v. I get fairly high temps like this though (85C+ when stress testing) but under normal loads it is fine. I also had no issues during the summer where temps were in the 30C range in my room.

I should point out that this is all with adaptive voltage, so I get much lower voltage when the system is not being stressed. 1.38 is like the max.
 
Potato CPU, I like it, I should rename my pc to 'Veggie Paella', as I got a potato gpu too, won't do more than 1420/2150 stable, throwing 1.21v at it atm xD
 
I have a potato 6600k which I got as an RMA replacement for a golden 6600K sadly. I push 1.45v through it daily for 4.6GHz, any less and it crashes. I plan on switching to Zen anyway so it won't be around long enough to experience degradation but I have no temperature issues at all.
 
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