Seasonic PSU Fan at 100% Speed

[imVicces]

Hardware:

- Gigabyte B550m DS3H
- Ryzen 7 3700X
- GTX 1070
- Kingston NV1 500GB
- Samsung 240GB SATA SSD
- Seagate Barracuda 1TB 3.5 HDD
- 2x8GB 3200Mhz Kingston Fury
- Seasonic Focus GM850

 

Context: Before, whenever I turn on my PC, case fans at max speed, PSU Fan spins normally (quiet mode I guess?). A few weeks back, I streamed PUBG at 6000Kbps bitrate, for around 2-4hrs, inside my room with AC set at 18°C. This streaming session happened 2-3 times at different days. Then just last night, upon powering on my PC I noticed an unusual fan noise, like running at max speed, first I thought it was one of the case fans, but upon careful inspection it was the PSU fan, WHICH did not stop or even slowed down throughout a 3hr usage time (I only updated steam games since I can only use my PC for 2-4 times a month)

So my questions are:

1. Is the PSU Temp sensor broken? If yes, Can it really break with just that kind of load?
2. Will Seasonic grant RMA for this?
3. Are there any possible causes?
4. Any basic troubleshooting tips that I can do to check the actual issue?
5. Can I still use it normally or should I process it for RMA?

[seon123]

1 hour ago, imVicces said:

1. Is the PSU Temp sensor broken? If yes, Can it really break with just that kind of load?

That would be my guess. Anything can break at random, I wouldn't think it's because of a normal loaf.

1 hour ago, imVicces said:

2. Will Seasonic grant RMA for this?

I would expect them to. You could just ask for an RMA.

1 hour ago, imVicces said:

3. Are there any possible causes?

Just the PSU thinking something has gone wrong.

1 hour ago, imVicces said:

4. Any basic troubleshooting tips that I can do to check the actual issue?

You could try restarting, or trying the PSU in another system.

 

Despite what some virtue signalling Right to Repair-people will claim, you can not disassemble your PSU without voiding your warranty. Here's Jonnyguru on the issue.

 

2 hours ago, imVicces said:

5. Can I still use it normally or should I process it for RMA?

Since the PSU thinks something is wrong, it would probably be best to RMA it.

[imVicces]

18 hours ago, seon123 said:

That would be my guess. Anything can break at random, I wouldn't think it's because of a normal loaf.

I would expect them to. You could just ask for an RMA.

Just the PSU thinking something has gone wrong.

You could try restarting, or trying the PSU in another system.

 

Despite what some virtue signalling Right to Repair-people will claim, you can not disassemble your PSU without voiding your warranty. Here's Jonnyguru on the issue.

 

Since the PSU thinks something is wrong, it would probably be best to RMA it.

Thanks for the answers. I already contacted the shop where I bought it and luckily they will process the RMA for me, I just need to send it back to them.