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PSU Fan Revving Up & Down

Post Date: 2021-01-13
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itskrude View Drop Down
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Posts: 3 		  Quote itskrude Quote  Post ReplyReply bullet Topic: PSU Fan Revving Up & Down
    Posted: 13 Jan 2021 at 8:14pm
**UPDATE** It's the PSU fan that keeps revving. I feel the air and it's not even warm.

I just got my new Lumos, it has watercooling for the CPU and GPU, but a fan is revving up and down every minute or less. Seems to make no difference. Benchmarked it and the cpu temps reach 65c, gpu reaches 55c.. so why is this happening?

I went into bios and set all the fans I could to pwm and quiet setting. Didn't seem to help. What do?

Edited by itskrude - 14 Jan 2021 at 9:39am
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Gldigital View Drop Down
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Posts: 18 		  Quote Gldigital Quote  Post ReplyReply bullet Posted: 14 Jan 2021 at 7:37am
The LL or ML fans are best for cooling efficiency and extremely quiet too.
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itskrude View Drop Down
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Posts: 3 		  Quote itskrude Quote  Post ReplyReply bullet Posted: 14 Jan 2021 at 9:38am
So it turns out it's not a case fan, it's the psu fan. which makes even less sense. it's 1200w and even when I'm just surfing it revs.
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Calibrator View Drop Down
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Posts: 20 		  Quote Calibrator Quote  Post ReplyReply bullet Posted: 14 Jan 2021 at 8:54pm
Originally posted by itskrude

So it turns out it's not a case fan, it's the psu fan. which makes even less sense. it's 1200w and even when I'm just surfing it revs.


Yup. Same issue here. Velox build. At first I thought it was the case fans or liquid CPU fans. It IS the power supply fan and I too have the 1200W PS. Every few minutes, even at idle, the fan revs up for a seconds or two and then quiets back down. It's more annoying than anything. Any help on this topic would be greatly appreciated.
Velox
i9-10980XE
Nvidia RTX 3090 Founders
ASUS ROG Strix X299-E GamingII
64GB DDR4 3000MHz Corsair
SSD M.2 512GB 970 PRO NVM
SSD M.2 2TB 970 EVO NVM
4TB Western Digital HD

ASUS PG43UQ 43" 4k 144Hz
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bprat22 View Drop Down
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Posts: 20391 		  Quote bprat22 Quote  Post ReplyReply bullet Posted: 15 Jan 2021 at 3:16am
Only thing I can suggest is to make sure the pc is sitting on a hard surface, no rug underneath. The psu intake is on the bottom and the psu turns the fans on/off by temp control.   Restricting the cooling air could cause this.

After that it could be a faulty psu.   Lots of issues at times with different batches. Call DS and see if it’s a problem they’re seeing.

Good luck.
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itskrude View Drop Down
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Posts: 3 		  Quote itskrude Quote  Post ReplyReply bullet Posted: 15 Jan 2021 at 6:00am
It was definitely a faulty psu, it also had bad coil whine when running a game. I replaced it myself and all is well.

I have to say, considering I paid a few thousand and never contacted them to rush the job, I don't like that they would send this to me 2.5 months after I ordered it. Not a very good first impression.
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