nightmarelullaby Posted March 14 Share Posted March 14 Hi, this is my build Asus a320M-k Ryzen 5 3400g (65W) RX 5700 XT (220W aprox) 16GB RAM DDR4 Samsung M.2 Nvme 980 PRO 1TB HDD 256 5.2" The fans of psu doesn't spin up after gaming for 2-3 hours. They spin up for secs when booting and shut down pc, so they should be working fine. My question is: is this a normal behavior?. I toched psu under heavy load and it seems very very hot. Until now my pc has no experienced any shut down or something, its working normal. I have read Corsair manual and they say it should start colling at 40% load (300W) and, come on, i think my build is consuming 300W at least, i have read similar question in this forum and the answer is the same. Link to comment Share on other sites More sharing options...
LeDoyen Posted March 14 Share Posted March 14 it's normal. the fan control is a bit more involved than just load % and you have a rig that doesn't pull a ton of power so the PSU can run passively without problems. A temperature like ~60°C will feel very hot to the touch but it's relatively cool for the PSU. So if you pull even 3 or 400W but the PSU is not hot enough to be needing active cooling, the fan will stay off. Link to comment Share on other sites More sharing options...
nightmarelullaby Posted March 14 Author Share Posted March 14 Thanks for the answer. Have you experienced any similar behaviour with this psu before? Link to comment Share on other sites More sharing options...
LeDoyen Posted March 15 Share Posted March 15 I only used a RM750X briefly on a build i made for a family member, and the fan never spun once, only doing the spin test at startup as you saw. My HX1200i never spins either in game despite pulling 6-700W. They pretty much all do that. As long as they are cool enough they won't start their fan. "cool enough" being often in the 55-65°C region which is uncomfortably warm to the touch. Very hot to the touch isn't a good indicator, since the switching chips inside can happily run over 100 - 110°C all day if they had to. Link to comment Share on other sites More sharing options...
nightmarelullaby Posted March 15 Author Share Posted March 15 4 hours ago, LeDoyen said: I only used a RM750X briefly on a build i made for a family member, and the fan never spun once, only doing the spin test at startup as you saw. My HX1200i never spins either in game despite pulling 6-700W. They pretty much all do that. As long as they are cool enough they won't start their fan. "cool enough" being often in the 55-65°C region which is uncomfortably warm to the touch. Very hot to the touch isn't a good indicator, since the switching chips inside can happily run over 100 - 110°C all day if they had to. Umm, interesting... Which was your family member build ? Link to comment Share on other sites More sharing options...
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