Super Hot VR Temp and Lockup

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   Hi, I have a new Taichi X399M with a Ryzen 2990WX. When I load it up with all cores singing, the VR Temp jumps to 123C and the board locks up requiring a power off. No overclocking.
The CPU temp stays in the 70'sC. I have Enermax Liquid cooling 320mm and I strong fan on the VR heatsink. Running latest BIOS -- do I have a bad board? What temps are you seeing on your VR.

BTW: I measure the VR Temp using A-Tuning. Thanks

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Mr-Mechanical Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Oct 2018 Location: East Coast Status: Offline Points: 4	Post Options Post Reply Quote Mr-Mechanical Report Post Thanks(0) Quote Reply Topic: Super Hot VR Temp and Lockup Posted: 18 Oct 2018 at 8:27am
	Hi, I have a new Taichi X399M with a Ryzen 2990WX. When I load it up with all cores singing, the VR Temp jumps to 123C and the board locks up requiring a power off. No overclocking. The CPU temp stays in the 70'sC. I have Enermax Liquid cooling 320mm and I strong fan on the VR heatsink. Running latest BIOS -- do I have a bad board? What temps are you seeing on your VR. BTW: I measure the VR Temp using A-Tuning. Thanks

fnordie Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 22 Jul 2018 Status: Offline Points: 78	Post Options Post Reply Quote fnordie Report Post Thanks(0) Quote Reply Posted: 18 Oct 2018 at 3:23pm
	super hot vr is a nice game ;) i think you mean VRM temps (=power delivery)? i see you water cool, do you have good case air flow? maybe point a fan on the cpu socket to blow away some heat, just to see if low airflow arround the socket is the problem?

Mr-Mechanical Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Oct 2018 Location: East Coast Status: Offline Points: 4	Post Options Post Reply Quote Mr-Mechanical Report Post Thanks(0) Quote Reply Posted: 19 Oct 2018 at 9:53pm
	I have lots of airflow on VR chips and heat pipe temps go crazy when I am using more then 3/4 of cores. I ordered a replacement. Edited by Mr-Mechanical - 19 Oct 2018 at 9:54pm

FV304 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 Jan 2019 Status: Offline Points: 1	Post Options Post Reply Quote FV304 Report Post Thanks(0) Quote Reply Posted: 31 Jan 2019 at 1:39pm
	Just for my own curiosity, what thermal compound are you using? Also, are the CPU temps you're reporting here Tdie or Tctrl and what is the limit for the 2990wx? The 2950X is Tdie 68c / Tctrl 95c so I am curious how that chip compares.

gizmic Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 13 Jun 2018 Location: Hong Kong Status: Offline Points: 677	Post Options Post Reply Quote gizmic Report Post Thanks(0) Quote Reply Posted: 02 Feb 2019 at 10:03am
	even without a heatsink it should reach over 60C


Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 27413	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 02 Feb 2019 at 9:13pm
	I don't have a 2990wx but with my 2950x on an X399 Phantom Gaming 6 my VRM temps go up to 70c MAX when under full load (32 threads 100% use). Even then, 70c is a brief spike, average temp under full load is about 64c according to ASRock ATuning. If you are hitting 100c and above then return the board, the VRM heatsink mounting is probably damaged. This can happen with rough handling, usually in transit. As for CPU temps, the 70c reading is taken from Tdie which should be offset by -27c to get your actual CPU temp. 70c Tdie = 43c TCtl. It had me panicking with my 2950x when I saw temps reported in the 90s in A-Tuning during stress testing. As it turns out, A-Tuning reports TDie not TCtl so I was worried for nothing. Edited by Xaltar - 02 Feb 2019 at 9:23pm