Gigabyte GA-990XA-UD3 north bridge / VRM temperature

Mairu Ryuunuu

Reputable
Apr 19, 2015
7
0
4,510
Hello THW society!

I'm here again to again ask you for help - because you are helping in most of cases.
What's my spec?
MoBo: Gigabyte GA 9990XA UD3
CPU: FX 8320 @stocked frequency
GPU: Gigabyte GTX 970 OC
RAM: Ballistix 2x4GB
few HDDs & 1 SSD
700W PSU
CPU Cooler: Arctic A30 (Big & Good)

What's my problem?
While GPU is holding its normal temperature ~40 degrees @idle and up to 51 when im pressing games on, and my CPU is holding its normal temperature ~20-40 @idle-normal use-gaming, some apps to measure temperature are showing that some part of MoBo is reaching high temperature of ~45 degrees!

Measurement in SpeedFan 4.51:
GPU: 40-50 Degrees - showing same temp. as OC Guru & Speccy app
Temp1: 34 Degrees - no idea which part of MoBo is it
Temp2: up to 47 Degrees - thats problem! Also dont know which part of MoBo is it
HDD temp 1
HDD temp 2
HDD temp 3
Core: 20-40 - showing CPU temp. Same temp. as in Speccy

HWMonitor, and others less knowned apps are showing same results. The problem is, I have no idea what Temp1 and Temp2 is. I'm a bit worried that it's VRM or North Bridge, and it looks pretty hot. Also i have no idea what USUALL and CRITICAL temperature for both North Bridge & VRMs are.

Does anyone have any info about it? Also: solution "put a fan on VRM" will not work. Why? That's why: http://i.imgur.com/mKIJUH2.jpg CPU cooler is pretty big. But works well, as producent says it can get out much much more heat than it's necessery... And if cant, you can put there faster fan, it's not like you need to buy new cooler ^^ But thats another story!

Air flow:
Rear fan is pumping air onto CPU Cooler which blows everything to top. On top additional 2 fans are blowing hot air outside case. Underpressure/vacuum sucks air inside through bottom hole(between HDD case & PSU) and through whole front panel(I can sense wind on hand).

What would be a solution? Changes in air flow? Moving one of two top fans somewhere else? What are "normal" and "dangerous" temps for North Bridge & VRM on that MoBo?


Sorry for causing problems, sorry for no screenshots, sorry for poor photo, sorry for long post and no tl;dr version :) Right now can't put much more >.<


And... Thank you very much in advance for any help & info :3

[Edit:] MoBo rev3.0
 
Solution


No piece of silicon should run at or above 90C imo. That is enough to cause breakdown in structure if left unattended. As far as the CPU cores, run AOD and watch thermal margins. That will show you the distance remaining until the CPU throttles to save itself. http://www.techspot.com/downloads/4645-amd-overdrive.html
It may also show AMD chipset temps, I can't remember offhand.


No piece of silicon should run at or above 90C imo. That is enough to cause breakdown in structure if left unattended. As far as the CPU cores, run AOD and watch thermal margins. That will show you the distance remaining until the CPU throttles to save itself. http://www.techspot.com/downloads/4645-amd-overdrive.html
It may also show AMD chipset temps, I can't remember offhand.
 
Solution
90 degrees? Dear god, its probably unreachable temperature for me :)

FX 8320 i hear it's throttle above 58-60 degrees, so no need to worry about it. I can barerly take it over 40 degrees, once i reached 50. That's max...
Only different info AOD provide me is TMPIN1 in Thermal Margin tab. It's showing 55.4 Degrees on something and it's NOT a GPU or Core. I will take it as a VRM(90 max as you said) or socket temp(70 max).

Even if, I will assume that my temps are OK, and if they don't jump up by 10 degrees I don't need to worry about anything. Just keep monitoring.


Thanks for help~~!



I've got in touch with some people with info:
Temp1 = MoBo
Temp2 = CPU
Temp3 = NorthBridge

MoBo sensor is somewhere nearby Northbridge-CPU-VRM as it's hottest spot on this MoBo
CPU can be described as Socket Temp, but im not sure about it.
NB is NB, no doubt.