[SOLVED] 4690k running too hot?

edgeno · Nov 10, 2018

Hi,

So I noticed that my CPU was running very hot this week, and decided it was time to replace the termal paste. At this time I also noticed that the cooler block had actually come loose from the CPU itself. No wonder with the temps then!

After reapplying, I saw definite improvement(was idling at around 80c before), but it's still running a lot hotter than it used to.

Currently I'm only running a 4GHz clock done by just changing the multiplier, and it's idling around 40-50c, and I have to stop prime95 for fear of killing the chip when it reaches the high 90c mark. What's weird is that I used to run it at 4,3GHz with temps well under 80 when running prime95. My cooler is a Corsair h100iGTX.

So main question is, has running it for a while with the cooler loose just damaged the CPU beyond fixing? And if not, what can I do to lower the temps a bit, and potentially get a bit more speed?

Thanks!

feelinfroggy777 · Nov 10, 2018

You may have an issue with your cooler. AIO's tend to degrade over time and their performance drops. I RMA'ed a Corsair H115i this year.

Ambient temps impact idle temps and I dont know what your ambient temps are, but 40-50C is pretty high idle temps. 30-40C is "normal". If you are in a hot room, then it will be higher.

I dont think your CPU is damaged from running hot. They have built in protections that prevent damage. I would bring your CPU back to stock settings and see what your temps are. You should not be in the 90C range at stock. If so, I would suspect your cooler is not operating properly.

In Corsair link what is the pump rpm?

amd4lif3 · Nov 10, 2018

yeah sounds like a bad cooler man, either bad pump flow or perhaps the liquid has reduced over the years

edgeno · Nov 10, 2018

feelinfroggy777 :

So I'm in Norway, and ambient temps are pretty low at the moment, so it's definitely not that.

Right now I'm running the pump in performance mode to try and keep the temps down, so its around 3000rpm. When I was running 4,3GHz previously, i had it in quiet mode, which is around 1800rpm, and it was fine then, so something has changed. I am noticing that the difference in pump setting is worth 5-10c though, depending on the load.

I'll have a go at reverting back to stock and see what happens. Thanks for the reply!

amd4lif3 · Nov 10, 2018

I assume you are low on liquid inside your AIO, so it may be time to buy a new one or RMA it if u have warrenty

edgeno · Nov 10, 2018

Alright, so after reverting to 3,5GHz, the cpu is hitting about 80c when running prime95. Voltage is all the way down to 1.03 (auto setting; was at about 1.16V@4GHz). I still feel this is pretty high, though.

I think the AIO is about 3 years old, not sure if this puts it out of the warranty time?

amd4lif3 · Nov 10, 2018

will be out of warranty, your best bet is to buy a new cooler because for 1.03 v it shouldn't be hitting 80 degrees under load

amd4lif3 · Nov 10, 2018

either that or if you are good at DIY open it from the pump side and add some more distilled water and close it all up again

edgeno · Nov 10, 2018

Yeah, no DIY for me.. I did find someone saying that Corsair AIOs had 5 years warranty though, so I sent them a message first to see if they will do anything.

Thanks to you both for your answers though! Think I'll just run my CPU at 3,5GHz for the time being, just to avoid the noise. Hopefully I can avoid too heavy framedrops..

feelinfroggy777 · Nov 10, 2018

Corsair has a 5 year warranty. All you need is the receipt of purchase and you will be good to go.

edgeno · Nov 15, 2018

So, lately the temps have actually been a bit better, idling in the high 30s, and reaching about 60 under load, reaching about 70 with OCCT. This is however while running the pump in performance mode(around 3000rpm), and I have also recently installed an extra intake fan, which probably is of help. Running at stock turbo speed(3,9GHz@1,16V).

If I put the pump into quiet mode(17-1800 rpm), the idle goes up to the low 50c-area however, and OCCT drives the CPU to 85c before stopping.

Could this just be the thermal compound "settling in", or has all my tinkering loosened something in the pump to allow for better flow? The pump temperature now rarely reaches much more than 10c over ambient(30-35c), where it would reach 25c+(45-55c) over ambient previously.

Sorry for the disorganized post, I there are too many moving parts for my head to keep track of.. Very tempted to pull the trigger on a Noctua D15 or something now.. seems like a more stable solution.

feelinfroggy777 · Nov 15, 2018

When I had an issue with my pump I went through a lot of troubleshooting first. I think I had a clog. First I changed the thermal paste and it was a lot cooler, for awhile. Then it got hot again. I changed the paste again, it got cooler then hot. What I think was happening was when I was removing the cooler, whatever particulates were clogging the tube moved. Then later they would get hung up again.

I don't know for sure, Corsiar accepted the return and I have not though much about it. One thing I did notice on mine was that my pump was running a little over 3000rpm in performance mode which is above its rated speed. It used to no do that. I don't know if the clog increased pressure which also increased the pump speed. I don't know the inter workings, but when I changed coolers, the problem went away.

Zerk2012 · Nov 15, 2018

Thermal paste has to cure a bit after applying it. Your temps seen fine now. I stoped using a AIO cooler a long time ago air is a much better cooler you get right at the same performance with nothing to go wrong except a fan failure that can be replaced cheap.

I run my 4790K@4.6 1.26 volts with a Cryorig R1 cooler.

edgeno · Nov 15, 2018

I see. I don't know if the GTX has a higher rating for the pump speed, but it has at least always gone to about 3000 whenever I have put it in performance mode. It's possible it's been struggling all this time though, as I have largely had idle temps >40c, and only lately did it start spiking, and I had to reduce my OC.

Hopefully Corsair will get back to me soon, and thank you so much for your help (so far?)!

edgeno · Nov 17, 2018

Alright, so Corsair has now decided they won't help me, since the cooler was bought as part of a second hand computer. At the moment it seems to work though, but if I can get a good deal on on black friday, I'll replace it.

Sorry for not replying, Zerk, I guess I wrote while you posted your reply! Yeah, I'm definitely interested in more trouble-free ownership, especially now I have invested in all Noctua case fans which should keep it nice and airflowy. My only worry is if I go for something like the NH-D15, my EVGA Hybrid radiator won't have a place to live (Also looking to replace, but money..). Maybe I could fit it as a top outlet though, not sure how much room a big CPU-cooler like that would leave me in my case (CM Mastercase 5)?

edgeno · Nov 30, 2018

So just as a happy(-ish) ending, I ended up getting an NH-D15, and I'm currently running at 4,4GHz@1,25V and barely touching 70c during Prime95 small FFTs, and the fans aren't even having to speed up! I never got 4,4 stable on the Corsair, so this is a bit of a revelation for me! Also a LOT quieter! Maybe I didn't lose the silicon lottery at all? I was also able to fit the GPU rad as a top exhaust, although I had to drop the push/pull config. Wish Noctua made GPU-coolers as well now...

Thank you guys again for all the help, and sorry for the rant, I'm just super happy now!

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