X399 Taichi High VRM Temps

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   I have a X399 Taichi running a 1950x Threadripper at 1.375v at 4ghz, LLC is at level 3 SOC is at 1.05 and when I run Prime 95 Blender I hit 109c when it does small 8K FFT test and around 86c for the rest of the test. My CPUs Tdie are around 60c and do not exceed 80c for the small FFT test but my VRMs are super toasty. Is this normal? What are the limits of the VRM? I am running in a Corsair 540 with a Enermax Liqtech 360 infront as intake and ambient temperature is around 20c. 

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Tbonephile Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Mar 2018 Location: Boston Status: Offline Points: 7	Post Options Post Reply Quote Tbonephile Report Post Thanks(0) Quote Reply Topic: X399 Taichi High VRM Temps Posted: 12 Mar 2018 at 6:09am
	I have a X399 Taichi running a 1950x Threadripper at 1.375v at 4ghz, LLC is at level 3 SOC is at 1.05 and when I run Prime 95 Blender I hit 109c when it does small 8K FFT test and around 86c for the rest of the test. My CPUs Tdie are around 60c and do not exceed 80c for the small FFT test but my VRMs are super toasty. Is this normal? What are the limits of the VRM? I am running in a Corsair 540 with a Enermax Liqtech 360 infront as intake and ambient temperature is around 20c.

TANWare Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2017 Status: Offline Points: 120	Post Options Post Reply Quote TANWare Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 6:58am
	I can say no that is not normal. Highest I see @4GHz 1.35v on P95 is 55C for the VRM. I took CB R15 and for 30 minutes bashed the CPU and max VRM was 45C. At 1.35v P95 set to just small FTT crashed so I set to 1.375. After 15 minutes this was the result; Edited by TANWare - 12 Mar 2018 at 7:44am
	x399 Taichi, 1950x, 32GB 3466 DDR4 2x500GB 960EVO,Asus 1080TI Passmark

Tbonephile Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Mar 2018 Location: Boston Status: Offline Points: 7	Post Options Post Reply Quote Tbonephile Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:00am
	I just checked CPUID HWmonitor and I am also getting 49c, however in HWInfo64 I get those high temperatures (Highest 115 after 10 min Prime Small FFT) under VR T1 and VR T2. Now which is correct...

Tbonephile Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Mar 2018 Location: Boston Status: Offline Points: 7	Post Options Post Reply Quote Tbonephile Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:11am
	Seems like the reading from HWInfo64 are for the IR35201, or the digital multiphase controller, how is the VRM controller temperatures so much higher then the VRM? Any idea how high it can go? http://www.irf.com/product-info/datasheets/data/pb-ir35201.pdf

TANWare Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2017 Status: Offline Points: 120	Post Options Post Reply Quote TANWare Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:25am
	HWinfo64 does not list the ir35201, which value are you looking at? my VR1 and VR2 only get in the 80c or so range. Nothing in the 100c or so except 107c on the CPU under ASRock x399 Taichi also (tctl) and that is the offset the CPU will display as AMD uses that plus value there of what seems to be +27c. Ok, edit now did a 10 minute run and VRT1 and T2 got to 95c. I think CPU id reads the entire VRM and all rails where as the T! and T2 are just for the CPU rail. Edited by TANWare - 12 Mar 2018 at 8:46am
	x399 Taichi, 1950x, 32GB 3466 DDR4 2x500GB 960EVO,Asus 1080TI Passmark

Tbonephile Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Mar 2018 Location: Boston Status: Offline Points: 7	Post Options Post Reply Quote Tbonephile Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:31am
	Right here, I have the newest version of HWInfo64 and cupid hwmonitor, both downloaded today Edited by Tbonephile - 12 Mar 2018 at 8:38am

TANWare Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2017 Status: Offline Points: 120	Post Options Post Reply Quote TANWare Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:46am
	Can't see your pic, see my edit above though. Edited by TANWare - 12 Mar 2018 at 8:47am
	x399 Taichi, 1950x, 32GB 3466 DDR4 2x500GB 960EVO,Asus 1080TI Passmark

Tbonephile Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Mar 2018 Location: Boston Status: Offline Points: 7	Post Options Post Reply Quote Tbonephile Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 8:47am
	I have hit as high as 110 now, running Prime 95 at 1.388v, I am sure people have run 1.40v in Prime for longer so I won't worry about it for now, but still a bit hot for my liking...

ssateneth Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19 Oct 2017 Status: Offline Points: 129	Post Options Post Reply Quote ssateneth Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 9:30am
	I have absolutely zero airflow in my PC (except for 1 exhaust as part of the power supply) and I'm looking at 100C VRM after about 10 minutes of prime95 small inplace fft, 4.1GHz @ 1.35v, no LLC (about 1.29v under P95), ~310 watts across CPU. With moderate airflow, it'd be in the area of 80-90C. So yeah if you are overclocking and using a lot of power, it's going to get hot. Like I said, I don't use LLC (don't believe in it, causes more dangers than it solves) so my load temperatures are lower. Edited by ssateneth - 12 Mar 2018 at 9:34am
	MB: X399 Taichi, UEFI L3.32 VGA: EVGA 1080 Ti FTW3 PSU: Seasonic PRIME 1300 W PLATINUM CPU: AMD Ryzen Threadripper 2950X MEM: 4x16GB, 3600MHz G.Skill Trident Z F4-3600C17Q-64GTZKW

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 12 Mar 2018 at 10:03am
	If either is using water cooling, it is REQUIRED to place an aux fan over the VRM section of the board. Most AiO Kit manuals I have read state so. AMD does also.