Is my H100i Gtx semi dead?

[ChriffeR]

Hey guys, so I have a Corsair H100i GTX cooling my 5820k, it's been doing pretty OK for a year or so now, but as of lately my cooler will not work what so ever on any small type of benchmark. I've had to dial it back from 4.5ghz to 4ghz and sometimes lower to get semi-decent temps. It'll cool it on idling just fine, it does OK on gaming.

If I run Cinebench even @ 4ghz 1.18V's I'm reaching mid 80s to 90c on such a quick benchmark test. Should I just replace the cooler now? Is it this normal behavior before the cooler dies? I've tried out my buddies H115i Extreme and @ 4.3ghz on a 10minute benchmark my hottest core was only 63c.

Looking for opinions, it only seems to run overly hot on benchmarks, even semi-warm in gaming as high as 65c+ at just only 4ghz. If you recommend to replace it, do you recommend an H115i Extreme, or NZXT Kraken x61/x62?

 

[derekullo]

I've always used the Cooler Master Hyper 212 EVO for my air-cooled builds.

If temperatures are steadily rising over the months please do check it out.

Temperatures 90 °C and higher can make the cpu age faster/die sooner.

Try going into the bios and forcing the cooler to do maximum rpms at all times.

If this doesn't work then you need to buy another cpu cooler.

I would even venture to say don't use the computer for anything more than Word till you do.

 

[ChriffeR]

Well, the idles are normal 29-32c awhile gaming If I keep it at stock speeds never really exceed 58c. Anything OVER stock temps seem to just absolutely crazy in even with a 1 minute benchmark as high as 85-90c.. I guess the pump is just on it's way out. I did use a 212 evo for awhile with my previous 5820k before it died, I got this new 5820k from intel and it just runs SUPER warm, and requires SO much voltage to run anything past 4.3ghz

 

[Shaun o]

MERGED QUESTION
Question from ChriffeR : "Is my H100i GTX Semi-Dead?"

Hey guys, so I have a Corsair H100i GTX cooling my 5820k, it's been doing pretty OK for a year or so now, but as of lately my cooler will not work what so ever on any small type of benchmark. I've had to dial it back from 4.5ghz to 4ghz and sometimes lower to get semi-decent temps. It'll cool it on idling just fine, it does OK on gaming.

If I run Cinebench even @ 4ghz 1.18V's I'm reaching mid 80s to 90c on such a quick benchmark test. Should I just replace the cooler now? Is it this normal behavior before the cooler dies? I've tried out my buddies H115i Extreme and @ 4.3ghz on a 10minute benchmark my hottest core was only 63c.

Looking for opinions, it only seems to run overly hot on benchmarks, even semi-warm in gaming as high as 65c+ at just only 4ghz. If you recommend to replace it, do you recommend an H115i Extreme, or NZXT Kraken x61/x62?

Well I dont know how long the H100i AIO has been in your system Chriffer.
But if it has been fitted for a year or more, when was the last time you took the cooling fans off the radiator and gave it a good clean from dust buildup between the aluminium fins of the radiator ?

If your answer is never then I suggest that you give the radiator a good clean with a small, clean paint brush that is dry and has not been used for painting with.

You would be surprised how hot the loop gets once air flow from the fans is restricted by a good buildup of dust trapped in the radiator fins.

It`s worth a check for the time it takes.

 

[JackNaylorPE]

One post per topic please
http://www.tomshardware.com/answers/id-3327835/h100i-gtx-semi-dead.html

There is a widespread mindset that makes peeps think that merely introducing water into the equation will somehow work wonders temperature wise. It's a false assumption. Here's the issues ...

a) testing over the years has shown that water flow doesn't mean much above 1.00 - 1.25 gpm. Much below that performanc drops precipitously... the H100i flows at about 0.11 gpm.

b) The H100i uses an aluminum radiator, which has a relatively low heat transfer coefficient compared to copper.

c) Because of that, in order to get close to competing with air coolers, the CLCs must use extreme speed fans which are very noisy.

d) Because CLCs are closed loops, you can not augment the corrosion inhibitors and agaecides which lose their effectiveness over time.

But of course, the proof is in the pudding as they saying goes.... see 17:12 mark

https://www.youtube.com/watch?v=TivNOgQqW-M

The H100i can not quite keep up with the Noctua NH-D15 which manages to keep the CPU 2C cooler than the H100i ... but it has to have the fans spinning so fat to accomplish getting that close that it is 12 times as loud.

Now all that being said .... there is more than that happening here...

a) How old is the unit ? This is what happens when you have an aluminum rad and a copper water block after corrosion inhibitors lose their effectiveness over time
https://martinsliquidlab.wordpress.com/2012/01/24/corrosion-explored/

b) I assume you have remounted the block, cleaned CPU, applied new TIM and cleaned the rads

c) Are pump / fan rpms the same as they were back when ?

 

[ChriffeR]

I've owned this cooler for well over a year, I'm OCD so it gets cleaned monthly, from the human eye I cannot see ANY dust in the fins of the radiator, or the fans. I've cleaned the chip multiple times, also tried multiple thermal pastes, as well as trying different methods, pea, larger than pea, line method. etc etc All of the RPMs are exactly the same. Pump runs at 3k, fans @ balanced run at about 1500 rpms.

Simple tasks as browsing the web, watching youtube @ 4ghz is hitting 60c. It used to NEVER do this.

 

[ChriffeR]

Okay it's decided the cooler is dying, sitting here the core #2 just hit 70c.