Assistance with cooling VRMs and MOSFETs
Assistance with cooling VRMs and MOSFETs
I just found out the reason for my CPU underclocking at safe temperatures is due to the VRM. When I touched the chokes, it was extremely hot—hard to touch for more than a second. I’m considering this change and need a 120mm fan. Will that work? I also checked the price on Shopee and found this RGB 120mm fan. During a stress test at P95, my temps spiked to around 72°C when idle, which is in the high 50s to mid-60s. I’m not sure if that’s from VRM or something else, but I hope this helps.
_Wolfie_Chan_
06-16-2016, 12:18 AM #2VRMs can handle temperatures up to 110°C. Running at 80°C is fine. Generally, most heat sinked VRMs need only the case flow and CPU cooler for cooling, and a fan will also work.
ikerlu1103
06-21-2016, 08:12 AM #4It's really odd I ended up purchasing a superior CPU cooler just to avoid cooling the VRMs.
xXJay_BugXx
06-28-2016, 05:50 AM #5You can cool your VRM without heatsinks by using proper case fans and ensuring good airflow. Just placing two fans on top won’t be enough if the VRMs aren’t properly ventilated. A dedicated case with adequate fans is usually better.
Sheik1soul
06-28-2016, 07:27 AM #6I'd start by checking the temperatures, perhaps with a tool like hwinfo64
_Flame_PvP
06-28-2016, 04:23 PM #7it doesn't display VRM or related components like MOSFET. However, I believe my temperature 4 is the VRM since it's around 55-60 when idle and about 71°C during stressing, which I think is a suitable temperature for a VRM based on my research. Please confirm if this is correct.
Sheep_Boss
06-28-2016, 04:48 PM #8Looking to reduce your VRM temps using this thermal pad from Shopee. It comes with adhesive, so you don’t need to apply glue for PC use.
Pad thickness matters a lot. Inexpensive thermal pads often perform worse than what most motherboards and laptops include by default. You don’t have to apply glue unless the other side of the pad has a heatsink or heat-conducting surface (otherwise, you can’t use thermal paste and leave it unconnected).
))"
Usually your PC doesn't need a high-end VRM cooling system because it rarely exceeds 80°C. Yes, it can significantly reduce the temperature of the VRM. Just ensure proper installation. (Reminder: Avoid liquid thermal paste for VRM) Since the VRM isn't critical, we'll opt for a budget thermal pad to cut costs. Yes, the link you shared works well for VRM. Make sure the pad matches the VRM size ))"