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i7 8700K @ 5300MHz achieved, advice needed on temps

evo4ever86

evo4ever86

evo4ever86

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6 Feb 2016
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236
Location
Liverpool
I've managed to achieve this staggering speed at Adaptive vcore 1.380v + LLC7 (vcore comes in at around 1.420v) -2 AVX. Could get the vcore lower with better cooling but the temps are way too high. Done a Cinebench run and it went into the mid 90s surprised it didnt BSOD! Should I de-lid using liquid metal and will it make a difference? I need at least 20c shaven off at full stress if I were to run at 5.3GHz 24/7.

Currently I'm running at 5200MHz @ Adaptive vcore 1.350v LLC6 (-1 AVX) and im 99% sure its stable. Ran countless Cinebench runs, AIDA64 stress, all the usual suspects, hours of gameplay and no BSODs. HandBrake wont run at 5200 but applying a -1 offset on AVX sorts it.

Cooling: Corsair Hydro Series H115i Extreme with Coollaboratory Liquid Ultra Thermal Paste.
Mobo: Asus ROG Maximus X Hero Z370 (0505 BIOS).

Any suggestions? Input much appreciated
 
I think it varies from model to model but I think chips throttle and shut down at around 100c.

So you are running too warm for sure.
Delidding replace the TIM and relid is the answer here, it's a very cheap way of knocking a good few degrees.

I doubt delidding would save you 20c, probably more like 10, but that would mean the difference between far too hot, and a bit on the warm side.

What's your peak temperature during gaming or whatever cpu intensive task you normaly do, rather than stress tests?
 
Thats a fairly good result, Delid will 100% help. however i would if you really want to be pushing those volts/speeds 24/7 be looking at a custom loop. failing that get a decent air cooler. you will get better temps on a good air over that 115i.

I would certainly consider a custom loop with a delid and liquid metal. I would expect to knock 20c off with that setup. i.e with the delid and custom loop.

P.S thank you to whomever deleted my duplicate post
 
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My current 5200MHz OC temps r 25 idle (18 ambient. I've seen it go as low as 16c on a cold night with my window open. My rig sits right by the window on wooden flooring).
mattyfez said:
I think it varies from model to model but I think chips throttle and shut down at around 100c.

So you are running too warm for sure.
Delidding replace the TIM and relid is the answer here, it's a very cheap way of knocking a good few degrees.

I doubt delidding would save you 20c, probably more like 10, but that would mean the difference between far too hot, and a bit on the warm side.

What's your peak temperature during gaming or whatever cpu intensive task you normaly do, rather than stress tests?
Click to expand...

My current 5.2GHz idles at 22c-25c (18c ambient). I've seen it go as low as 16c on a cold night with my window open, my rig sits just under the window. Gaming around 55c, full stress, around 70c-75c.

5.3GHz idles at 31-32c, gaming about 65c-70c, full stress mid 90s. I think ive got the vcore spot on its just the temps.
 
That's not too bad then but do bear in mind it's winter so ambient temps are lower, you could get into difficulty when the weather is warmer.

I think I'd just delid for now and see how it goes, it's probably the cheapest way to shave off a good few degrees.

Idle temps are pretty much meaningless really, it's peak temps you want to be concerned with.
 
mattyfez said:
I doubt delidding would save you 20c, probably more like 10,
Click to expand...

Have to disagree with that every intel cpu I have delided has seen drops of around 20 degrees, you would have to have a good sample that ran really cool not to see such drops , if the op is getting into the 90's in cinebench delidding would bring that down to 70 to 75 going of my own experience.
 
Maybe so, I'm not disagreeing, I dropped 10c by delidding, but I used kryonought rather than kondukrternought, as I didn't fancy liquid metal.

YMMV.
 
in my own experience i feel stress tests hit the cpu with unrealistic workloads so the temps that aida, prime95 or whatever give you way higher temps than you're likely to see in any realistic scenario, you said yourself that stress tests were hitting 90 but gaming etc 65-70. a full loop while that would drop your temps considerably seems like far too much £ for marginal oc gains, if i were in your position i'd probably sell off the aio, buy a decent air cooler and delid the chip.
 
The think simply delidding would be enough to bring him back into the comfort zone, it's the path of least effort and cost for a decent improvement. Use liquid metal if you want to maximise that benefit.
 
daveyb said:
in my own experience i feel stress tests hit the cpu with unrealistic workloads so the temps that aida, prime95 or whatever give you way higher temps than you're likely to see in any realistic scenario, you said yourself that stress tests were hitting 90 but gaming etc 65-70. a full loop while that would drop your temps considerably seems like far too much £ for marginal oc gains, if i were in your position i'd probably sell off the aio, buy a decent air cooler and delid the chip.
Click to expand...

Are you saying a HSF is better than a high end AIO? First ive heard. I de-lidded my 7700K and got around 15c off. But those kaby lakes do run hot anyway. I'm not into custom loops too much messing and too much money. De-lidding is a no brainer isnt it
 
1) A high end Air cooler is better than any AIO and can be quieter than the pump/fans, look at the Noctuas!

2) Deliding and using Liquid Metal on both Core and IHS to Heatsink could net you 10-30C as othes have proven on some Intel Chips (depending on how bad your TIM application was to start with).
 
Seen review of it a while back not sure TBH as their first air Cooler was like "Hens Teeth" trying to order it anywhere so I stuck To Noctua.

You can however seen many review charts with the Noctua up top if not no1 above other air cooler and AIO's
 
That was/is the air king but I have the newer "U" model due to clearance for Memory and top PCI-E slot.

You can now get nice fans and covers to make them look like like puke. :p
 
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