Ryzen 3700x + Corsair H100i Platinum = 95’C

Danthus · 26 Jul 2019 at 13:31

I installed the CPU and AIO last night onto an Asrock Taichi x570.

Idle temps were around 40’C.

I then ran a Prime 95 Blended test and within about 20 minutes the temperature hit 95’C.

I’ve removed the AIO block. There appears to be good contact between the CPU and block. There is a nice square of thermal paste on the block and CPU.

Why did I get such crazy temperatures?

Tee Hee Johnson · 26 Jul 2019 at 13:39

Don't the new Ryzen CPUs run a bit on the hot side.

What was the fan profile set as for the H100i?

Danthus · 26 Jul 2019 at 14:36

I was set to balanced then I changed it to extreme as the temperature increased.

Tee Hee Johnson · 26 Jul 2019 at 16:31

Balanced should be enough. Even quiet should do the trick ok.

Danthus · 26 Jul 2019 at 17:08

Clearly not.

LoadsaMoney · 26 Jul 2019 at 17:28

OldCoals said:
I installed the CPU and AIO last night onto an Asrock Taichi x570.

Idle temps were around 40’C.

I then ran a Prime 95 Blended test and within about 20 minutes the temperature hit 95’C.

I’ve removed the AIO block. There appears to be good contact between the CPU and block. There is a nice square of thermal paste on the block and CPU.

Why did I get such crazy temperatures?

Oh dear, was looking at getting one of these for my 3700x rig im gettin, as just been reading about the Kraken x62s not working with the new Ryzens yet (which i was going to get), something to do with the CAM software, so they are getting slaughtered lol.

Danthus · 26 Jul 2019 at 20:05

I’ve just got and and started the PC.

Ryzen Master is showing the vCore at 1.48v hitting 1.5v.

Why is it doing that!!!!

Ollie_B_2000 · 26 Jul 2019 at 20:11

Currently using the stock cooler with a 3700X and getting the same temps as you as I forgot to check if my H100i had the AM4 mounting kit. :rolleyes:

I'm thinking to just go ahead and get a Noctua DH-15 now though as the noise from the H100i and really bad CUE software have been driving me up the wall for too long.

OldCoals said:
I’ve just got and and started the PC.

Ryzen Master is showing the vCore at 1.48v hitting 1.5v.

Why is it doing that!!!!

Still can't work it out myself, I'm hoping it's something that can be resolved with future updates as I'm not comfortable running at around 90c under load

havenrl · 26 Jul 2019 at 23:12

My idle temps around 40C-60C. On auto settings/volts.
My old sandy i2500k, was idle around 35-45C.
I think the more cores is hotter, so that's ok.

Smaller case and different cooler, from NHD14 Define R4 to Mugen 5 Define C TG.

ltron · 27 Jul 2019 at 01:37

If you manually disable PBO in the Bios instead of leaving it on auto, does it make any difference?

Danthus · 27 Jul 2019 at 10:43

I’ve disabled it and it now hits 1.5v. vCore.

Gee · 27 Jul 2019 at 11:23

https://www.reddit.com/r/Amd/comments/cbls9g/the_final_word_on_idle_voltages_for_3rd_gen_ryzen/

Ross Thomson · 27 Jul 2019 at 13:12

what temp does it hit on normal day to day uses rather than an unrealistic test? Dial in some -ve offset voltage and forget about prime95

Gee · 27 Jul 2019 at 17:07

Offset voltage is pointless and costs you performance.

Ross Thomson · 27 Jul 2019 at 18:35

only if you go below a certain point. Both the new ryzen and navi units benefit from a bit of under-volting.

Danthus · 27 Jul 2019 at 19:59

Ross Thomson said:
what temp does it hit on normal day to day uses rather than an unrealistic test? Dial in some -ve offset voltage and forget about prime95

Everything is back together now, sides on, under my desk and it is idling anywhere between 35'c - 45'c

The Dirts · 31 Jul 2019 at 00:06

I don't know if it helps any, but there was some sort of update ~~today~~. Yesterday as it's past midnight now
https://community.amd.com/community/gaming/blog/2019/07/30/community-update-5-let-s-talk-clocks-voltages-and-destiny-2
couple of downloads at the bottom.
For me, AMD Master now shows CPU Volts around the 1.0 / 1.1 mark where before they were 1.48 / 1.5

Hotwired · 31 Jul 2019 at 00:32

OldCoals said:
I’ve just got and and started the PC.

Ryzen Master is showing the vCore at 1.48v hitting 1.5v.

Why is it doing that!!!!

https://old.reddit.com/r/Amd/comments/cjzax5/amd_cant_say_this_publicly_so_i_will_half_of_the/

It's using what it is designed to use and watching monitoring programs is causing the cpu to raise voltages to apply boost because monitoring programs keep poking the cpu for updates which looks like a work request.

Basically it's not like the last cpu that anyone had so 1.5V being wrong is wrong and it's not doing what you think it's doing with the voltage.

If you manually put it on 1.5V that's a different matter because that's extremely crude unlike the cpu automatically flicking voltages up and down by itself.

muon · 31 Jul 2019 at 01:27

Pump definitely running at 100%?

A 3700X uses less power than a 2700X.

theoneofgod · 1 Aug 2019 at 04:02

Did you sort this out?