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CPU Temps Looping/Repeating

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RetroAech

PCHF Member
Jan 10, 2020
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Hello!

TL:DR - Reapplied Thermal Paste and now my CPU temps are looping/repeating 10 degrees at a time, nonstop at idle. according to third party software. 58c, 57c, 56c, 55c, 54c, 53c, 52c, 51c, 50c, 49c, 48c, 58c, 57c, 56c ... etc My BIOS shows a steady temp.

I just built my very first PC about a week ago, such a fun process!

My only and main hiccup was applying the wraith cooler onto the mounted CPU.

From a lack of experience and thorough directions I sloppily applied the fan and moved on.

After it has been built I downloaded some hardware monitoring stuff (HWmonitor, CoreTemp)

Everything read find, my CPU temps were often 60+ at idle and I knew I messed up.

With the thermal paste pre-applied I didn't have any of my own. When I looked I could see the paste drooling from two sides under the cooler/fan.

So I ordered some thermal paste and when it got here, I carefully reapplied paste (It was very patchy and very thinly layered)

*side note, does anyone like the AMD wraith fans?? The RGB is great, sure but I feel like they squeeze way too hard down onto the CPU, no matter how strategically I place thermal paste it always forces it to the edges when I clamp it down.*

So booting up is perfectly fine, everything shows and acts just as before. But my third party software shows my temps as repeatedly fluctuating. But my BIOS still shows a single temp with minor changes over a few minutes.

Ive reinstalled the third party software, googled until my eyes bled, and took apart and put back together my PC more than you know just to figure this out.

Any ideas of what this is? Is there something simple I'm missing out on? Any and all help will be extremely appreciated!


**CPU** | [AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor]
**Motherboard** | [ASRock X570 Pro4 ATX Motherboard]
**Memory** | [Corsair Vengeance RGB Pro 32 GB (2 x 16 GB) DDR4-3200 Memory]
**Storage** | [Samsung 860 Evo 1 TB 2.5" Solid State Drive](
**Storage** | [Samsung 970 Evo 1 TB M.2-2280 NVME Solid State Drive]
**Video Card** | [NVIDIA GeForce GTX 1080 8 GB Founders Edition Video Card]
 
Welcome to PCHF RetroAech,

The BIOS followed by any monitoring software provide by the motherboard manufacturer are the two most accurate means of checking temps and voltages, the downside to checking the info in the BIOS is that the computer is under the least load in the BIOS so the info is not really that helpful so using the MBs own monitoring software when possible is the best option.

Please note that unstable power going to the hardware can cause temperature fluctuations.

What is the brand and model name or number of the PSU.
 
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