AMD Northbridge temperatures

GuillaumeM

Commendable
Apr 3, 2016
18
0
1,520
Hello all,
So after succeeding to overclock my AMD FX-8350 to 4.4GHz at 1.408v I was quite happy since my Cooler Master Seidon 120v keeps it under 60°C at Prime95 small ffts.
Yesterday though, I did notice my northbridge was getting really hot. I could barely touch the heatsink ( I have a MSI 970 Gaming motherboard) so I decided to re-apply the thermal compound on my northbridge. So today I took off the heatsink, removed the overload of thermal compound and added some Cooler Master thermal compound that was delivered with my Seidon 120v ( great thermal compound, stays cooler then AS5). I just rebooted and saw my nortbridge temps going down by 12°C, is that normal? I'm using CPUID Hardware Monitor pro, and according to the TMPIN1 the northbridge temps went from somewhere in the 50°C to 38°C, and also, it feels quite colder actually.
 
Possibly can make a difference mate , never tried personally , some cheaper boards use sticky thermal pads for the nb heatsinks meaning changing paste is impossible.

Assume the nb sink on the MSI board is spring clip loaded though so makes it easy??

Nb temps are fine up to & over 70c by the way so 50c wasn't particularly hot.

Bear in mind software solutions aren't particularly great for accurate temps - you need an infrared thermostat to be 100% sure.
 

GuillaumeM

Commendable
Apr 3, 2016
18
0
1,520
Well 50°c wouldn't be hot if it would be under load, but that was after idle for about a hour haha..
Under load ( so Prime95 small ffts) it reached temps going up to 75°C, which I found a bit warm. Max temp I've reached so far today was 54°C after some Prime95 according to CPUID Hardware Monitor pro. I'm just kind of surprised that there is such a big difference in temperatures just by changing the thermal compound.
And yes, the MSI heatsinks are attached with 2 mounting screws on the backside with springs on them, which makes it easy for the compound to spreak on the nb.