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ryzen temperature spikes, but with a twist!

Question asked by mimo on Jul 8, 2018
Latest reply on Jul 8, 2018 by black_zion

My PC config:

Motherboard: MSI B350 PC MATE

CPU: Ryzen R5 1600

RAM: G.SKILL Sniper X  DDR4 3000MHz 16GB Kit 2x8GB XMP (F4-3000C16D-16GSXFB)

GPU: MSI Gaming X 1060 6GB

SSD: Samsung 850 EVO 250GB

HDD: WDC WD20EZRZ-00Z5HB0

OS: Windows 10 1803 (10.0.17134.112 (Win10 RS4))

 

All at stock settings except RAM using XMP profile 2 - 2933MHz.

 

Everyone knows about ryzen temperature spikes at idle or when executing simple tasks like opening new tab in browser, when temperature can spike from 38 to 47 instantly. I think general consensus on this that this is ok, this is just XFR doing it's job, bumping voltages and clocks (although i still don't understand why this is happening with xfr disabled and fixed vcore and clock, would be grateful if someone explained it).

But yesterday I finally changed my 8 gb 2133MHz ram kit for 16 3000MHz and thought that one of the best games for benchmarking would be Battlefild 1. I didn't played it until yesterday so I don't know if what I will tell you was happening before. Problem is that when playing BF1, my CPU temperature regularly spikes from 65C to 74C or even more (seen 80C once). Not only this is worrying me in terms of thermals, but in terms of *** is happening too. At first I though that this was XFR doing it's job, so I fired up hwinfo64, set poll interval to 100 ms and started logging to csv file. To my surprise this wasn't it! Nothing changes in clocks & voltages department when this spikes are occurring. Take a look at the temperature spikes on these images as an example:

https://i.imgur.com/gW3UmXu.png

https://i.imgur.com/JXPIVW2.png

https://i.imgur.com/tv3I4eD.png

 

Could someone explain to me what is happening here? I know that SOC voltage with xmp profile increases and makes temperature higher, and it does this at idle and load, but I think this spikes is something different.

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