8700k high temps

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blowitup1985

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Dec 27, 2017
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Hi,
I have a Corsair h105 liqud cooler and an 8700k on a Gigabyte mItx MB and the temps seem to me like they are way too high. 50 - 60° at idle, under light load(15-20%) spikes up to 70°-80° and jumping between 80°-90° at load (intel etu stress test). I haven't overclocked the chip yet, but despite that i see the voltage fluctuating between 1.25V - 1.35V, wich seems kinda high to me aswell. Now i am wondering where the problem comes from (or if it is even a problem xD).
 
Solution
Karadjgne
Run a load, get the temps up and let it run for @20mins or so so the coolant climates to the load levels. Then check the hoses, one should be warmish, the other should be very warm. If not, the pump might be running, but there's little actual flow of coolant.
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marksavio

marksavio

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Dec 23, 2017
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whats your motherboard? have you gone to your BIOS and disable the MultiCore Enhanced/Turbo Enhanced? check if your idle temps are lower now. give it like 3-5mins to stabilize your temps. but even with that turned on you shouldnt have those kind of temps w/ the type of cooler u have. probably something went wrong when u mounted it? you used the stock thermal paste right? buying a better thermal paste may improve your temps a bit. are you in a hot place?
 
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krzyimprt

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Mar 25, 2013
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When installing the block, was the PC facing horizontally? Usually helps the block to sit flush with the CPU. Assuming you have everything plugged in, the pump just may be bad.
 
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Karadjgne

Karadjgne

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Dec 26, 2012
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1. Yes those temps are high, idle temps are a good indicator of airflow or lack of, and on any cpu should be pulling @ low 30's °C.
2. There's 3 usual suspects if idle (and loads) are that high. Bad install can be as simple as dried out paste, loose pump/cpu mount, air in the pump itself. Can he attributed to bad Corsair Link, but the h105 doesn't use CL, it's a straight sata/header hookup.
Bad settings, either the bios/windows/software is capped at less than full speed on the pump or fan curves are far too low. Fan curves normally affect loads not idle, but slow pump can affect either.
Bad pump/liquid levels. Requires replacement of the unit.
 
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blowitup1985

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Dec 27, 2017
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Pump and fan speeds are at normal levels (standard Gigabyte fan curve) and i have re mounted the Block three times already to make sure i didn't make a mistake. I Used Arctic Mx-4 Thermal paste. My Room ambient is ~20° and i even opened a side Panel to make sure its not bad airflow. My MB is the Gigabyte z370n Wifi.
 
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Karadjgne

Karadjgne

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Run a load, get the temps up and let it run for @20mins or so so the coolant climates to the load levels. Then check the hoses, one should be warmish, the other should be very warm. If not, the pump might be running, but there's little actual flow of coolant.
 
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blowitup1985

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Dec 27, 2017
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Ok I ran P95 for 15 min and no one of the hoses were even warm to the touch and the CPU thermal throttled (so definitely a big no-no for a 120$ Cooler) :/ So i guess it is going back.
Weirdly though the temps were semi stable at around 75-80C for the first 5 mins then i heard a lot of air bubbles going through the pump and the Temps shot through the roof (from ~75C to thermal throteling in no more than 30 secs)
Any recommendations which other one i should buy (my case can only handle 2x120mm)?
 
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Karadjgne

Karadjgne

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I'd just RMA the aio. Normally those are very good units. Everyone has duds, at times, it happens even with air coolers. Personally, I like my nzxt Kraken, the x52 I believe is 's 240mm, the fractal design s24 is also excellent. Not a fan of the Corsair H100i, but that's only because of their fans, crazy loud, but they perform well. The h105 being a thicker rad does much better than the thinner h100i. I also prefer the Asetek designs to the Coolit pumps.
 
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