Is it safe to cover your CPU without VRM heatsticks?
Is it safe to cover your CPU without VRM heatsticks?
CPU model: RYZEN 5 1600AF
Motherboard: ASUS PRIME B450 A-M
My motherboard lacks VRM cooling, no heatsinks, and no cooler.
I increased the clock speed of my RYZEN 5 1600AF to 3.9 GHz using 1.3V.
Everything runs smoothly, but I’m worried the VRM might be overheating.
Unfortunately, I don’t have a thermal gun.
Can I try lighting the OC without any VRM heatsink?
I could also install some heatsinks, but would that really make a difference?
I recall seeing a TechTuber pushing an 1800X to 4.1Ghz on certain boards to achieve that performance, despite the extreme heat it generates on the FETs. Absolutely include heatsinks—it makes a noticeable difference. While it won't be a game-changer, since the board can still overclock and the stock clocks are already too low for any first-gen Ryzen, the AF chip will definitely run much higher.
I generally dislike bare FETs because proper heatsinking is crucial to maintain consistent temperatures. Stable FET temps lead to more reliable regulation even outside of extreme limits. Placing a fan directly on the component area also helps. A modest 50mm fan setup works well...
You don't need a "thermal gun" to track VRM temperatures; you can use HWINFO64 for that.
Both your CPU and overclocking aren't as intense as they could be to really stress the VRM's limits.
I'd be more concerned about your CPU temperatures and cooling setup.
A reasonable response is no.
An extreme reaction would be to pursue it for the sake of science.
The expert suggests using thermal adhesive, copper heatsinks, and 40mm fans to build your own HSF solution.
I recall seeing a TechTuber pushing an 1800X up to around 4.1Ghz on certain boards to achieve that performance, despite the extreme heat it generated on the FETs. It’s important to include heatsinks for this purpose. Although the impact won’t be massive, since the board can indeed overclock and stock clocks are already quite low for first-generation Ryzen, the AF chip will definitely run much higher. Personally, I find bare FETs problematic; any form of heatsinking is beneficial to maintain stable temperatures. Consistent FET temperatures lead to more reliable regulation even outside the operational limits. Placing a fan directly on the component area also helps. A modest 50mm fan with tie straps should suffice, securely mounted. I built a bracket using an old rear blanking plate to attach a CPU heatsink, which features a push/pull fan design that enhances airflow in the VRM region. The cooling solution doesn’t need copper; in fact, aluminum could be preferable. This is because aluminum excels at dissipating heat into the airflow, whereas copper is superior at conducting it away. Therefore, larger, more finned, all-copper sinks are recommended to match or exceed aluminum performance. This approach also reduces risks, as heavy copper heatsinks secured with tape could fail under stress, potentially causing damage.