pc lags when fans speed up

Butters5000

Distinguished
Aug 6, 2015
163
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hello, looking for a little help, a while ago i built my first pc, and over clocked it to 4.4ghz, but in last 8 months i've noticed the fans speeding up when cpu usage goes up, and when it happens it will lag the computer, in the time i've built it, i redid the thermal paste 4 times to try and keep the temp down, any help would be great, thanks.


PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-6600K 3.5GHz Quad-Core Processor ($219.69 @ OutletPC)
CPU Cooler: Cooler Master - Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.88 @ OutletPC)
Motherboard: Asus - Z170-A ATX LGA1151 Motherboard ($219.49 @ OutletPC)
Memory: G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory ($136.95 @ Amazon)
Storage: ADATA - Premier SP550 240GB 2.5" Solid State Drive
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.88 @ OutletPC)
Storage: Western Digital - BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($60.99 @ Best Buy)
Video Card: XFX - Radeon RX 480 8GB GTR Video Card
Case: Inwin - 503 BLACK ATX Mid Tower Case
Power Supply: SeaSonic - S12II 520W 80+ Bronze Certified ATX Power Supply ($34.98 @ Newegg)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Total: $836.75
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-26 05:59 EDT-0400
 

Butters5000

Distinguished
Aug 6, 2015
163
4
18,685
hello, thanks for the responses.

I tried occt, started to go over 85F at 100%, so stopped it and lowered it to 4.3 and same thing happened, so lowered it again to 4.2 and still getting same temps, could it be a bad fan or heatsink?, i know the case i have doesn't have enough airflow so tested it with side panel off and still same temps.

my graphics card temps are good around 60-65F when maxed out,
 

Zerk2012

Titan
Ambassador
Run OCCT to and monitor the temp it will fail at 85C i would think you have to much CPU voltage for the hyper 212 to cool.
Same answer are you lowering the voltage with the OC or are you using software to OC instead of doing it manually in BIOS like you should.
 

Butters5000

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Aug 6, 2015
163
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18,685
i played a game for a few hours, the temp was decent, 70 max for processors, but when i stopped playing the temps went up to 75, is that normal?