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What are your Ryzen VRM temperatures

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3 Oct 2014
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I've had issues with the VRM MOS temperature on my Gigabyte Gaming 3 motherboard and found this to be limiting my overclock.

At 4.0ghz the extra volts needed pushed my VRM temp to over 125c and crashing my system.

I'm interested to know what kind of temperatures you guys get for your motherboards.

I've resorted to having this duct printed to help cool the VRMs. It definitely helps, replaced my case exhaust fan. I managed to mod the design for 140mm fans which I'm now using.

120mm Fan
http://www.thingiverse.com/thing:1492961

140mm x 55mm - http://www.thingiverse.com/thing:2208560
140mm x 40mm - http://www.thingiverse.com/thing:2208591

Download the latest HWinfo beta to check the temperatures.
https://www.fosshub.com/HWiNFO.html

VRM duct test

1700 @3.9ghz 1.31v - Gigabyte Gaming 3 Motherboard
Premiere exporting video.

VRM Duct + 140mm Fan (1/2 max speed) - 80c max
No VRM Duct - 110c + (temperature was still climbing)

LL


20170324_232117.jpg
 
Last edited:
Hmmm, on C6H here and my temps on VRM are not going above 70, level 4 LLC, Auto switching, phase response FAST. 1.5Vcore!
 
Like you 4ghz at 1.4v was sending VRM over 125C.

MSI Tomahawk B350.

I think more phases = more even loads which results in lower temps.

How would the duct help?
 
It seems the B350 and lower end boards with only ~6 VRMs are getting toasty. While the higher end boards with 8-12 VRMs can spread the load.

I'd imagine the boards are designed with the 'Spire' cooler in mind where it pushes air out across the board and into the VRM heatsinks.
 
It seems the B350 and lower end boards with only ~6 VRMs are getting toasty. While the higher end boards with 8-12 VRMs can spread the load.

I'd imagine the boards are designed with the 'Spire' cooler in mind where it pushes air out across the board and into the VRM heatsinks.

Heat is also proportional to I^2 x R isn't it? So it quickly escalates as the current increases.
 
I was having the same problem with my Gigabyte AB350m Gaming 3, thankfully I had an old Antec Spot Cool laying around and fitted that, under stress now, the VRM's dont go over 80oC, only reason ive not pushed beyond 3.9ghz, is I cant get a straight answer out of how much voltage is going to my chip, my bios says 1.225v and AIDA64 says 1.36v, you dont want to know what hardware info says, and CPU-z just doesnt work because im running RAID.
 
And some people on this forums said:
Naaa You dont need extra phases of VRM's that Asus And ASRock got....

Low phase count + bad radiators = VRM BBQ
 
There's no way I'd approach a Ryzen (with a view to overclocking) without the Taichi or Crossfire at the moment.
As to which of those wins is still up in the air but my money is on the Taichi.
 
Most I've seen was 116c on my ab350 gaming 3, as reported by easytune software. 3.9ghz 1.46v encoding video for around 45 mins or so, if it had run longer the temp might get higher still. But this is with all my case fans at full blast though so it sounds like a plane taking off.
 
There's no way I'd approach a Ryzen (with a view to overclocking) without the Taichi or Crossfire at the moment.
As to which of those wins is still up in the air but my money is on the Taichi.

Latest Tomahawk bios allows higher OC headroom now, everyone should be able to get 4Ghz, LLC is a lot better and latest microcode update included.

Long list of memory modules which can get 3200mhz now as well.

Even options like bclk adjustments are now available.

Unless you need lots of SATA ports, PCI-E lanes etc. X370 at up to double the price doesn't look like good value to me.
 
Latest Tomahawk bios allows higher OC headroom now, everyone should be able to get 4Ghz, LLC is a lot better and latest microcode update included.

Long list of memory modules which can get 3200mhz now as well.

Even options like bclk adjustments are now available.

Unless you need lots of SATA ports, PCI-E lanes etc. X370 at up to double the price doesn't look like good value to me.

Wish Gigabyte would pull there figure out of there A**e, As soon as its in stock im changing to the Mortar, bye bye Gigabyte.
 
A stock cooler would provide airflow into the vrm heatsink, using an aio without a fan providing airflow over the vrm heatsink will increase temps

But the duct looks like it's helping too fair play.
 
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