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How is the GPU plugged in? With a 600W cable that came with the GPU.
I've looked in the BIOS, I could set the CPU fan speeds against temp there, but for the AIO pump (called PUMP in the BIOS) there was a graph but it looked kinda messed up tbh, just 4 dots in a very rough rising slope that I couldn't edit. I will try to get a photo of it. I tried Fan Control software this morning, when it ran the auto detection as it starts it only detected my GPU fans so I couldn't change the AIO fans etc.
No, the fans that are making the noise.
With the 3 pin (molex?) connectors, they are black. I unplugged them and they stopped spinning so must be the cable.
jesus, why didn't I buy my PC guts at overclockers, never had a problem upgrading PC's from here, I bought my 5090 from here so I am customer and not a forum free loader 
yes i was going to comment saying you plugged it into the pump header and thats a full speed one by default, i use argus monitor to control fan speeds in windowsFan speeds normal now according to HWmonitor :
FANIN1 was 3000+ before I edited the fan curve in the BIOS for the PUMP, yet it's still damn noisy.
Can you show us the fan speeds for the 5090 in HWmonitor, the above photo is just the fan headers from the motherboardFan speeds normal now according to HWmonitor :
FANIN1 was 3000+ before I edited the fan curve in the BIOS for the PUMP, yet it's still damn noisy.
Is that how they were plugged in before you replaced the PSU?With the 3 pin (molex?) connectors, they are black. I unplugged them and they stopped spinning so must be the cable.
On the left image, notice Smart Fan Control option, after some mouse/keyboard kung-fu I got it to toggle on and I can now edit the PUMP fan graph, which I did, and now the fans are on about 900RPM at idle *according to the BIOS* BUT THE DAMN HOOVER SOUND REMAINS
Ah right ok thx, I set it back to default value then, cheers.
Sure, will do it when I'm at my hoover I mean PC next, will be tomorrow. Pretty sure its 0% and I can see they aren't spinning.
They are the same as far as I know. Tbh I've contacted a local pc repair specialist, going to speak to him in the morning, would love to solve it without him.
The plot thickens! I was convinced my GPU fans were at 0%, I thought I seen them not spinning
unless I can alter the fan profile. It's been noticed now that the gap between the underside of the GPU and the PSU cover is very small, wonder if there's no airflow.It is totally dependent on the fans really, you can have 2000 RPM fans that are silent. 1150 RPM would not normally be that loud (probably inaudible) with a large fan. Note that fans will sometimes run for an extended period if you were previously gaming.The plot thickens! I was convinced my GPU fans were at 0%, I thought I seen them not spinning
but I must be wrong, here they are when my PC is idling (well, chrome is open) :
Would 1150 RPM sound like a quiet hoover? It would explain a lot and mean a return back to OC
Through Palits Thundermaster software I 100% stopped the GPU fans spinning, confirmed it on the display in the software and I physically checked, yet the fan noise remains, so it's not the GPU fans. It must be the new PSU, and when I put my head to the PC it seems likely the noise comes from there. There is very little room between the GPU and PSU cover for air to circulate, not sure if that's relevant. But the fan noise happens as soon as I boot from cold, so it can't be a case of getting hot then the PSU fan kicking in. I guess I just might have a very noisy PSU, it was one of the cheapest, a 1200W Phanteks on OC for £159 iirc. I'm just going to live with it, relieved it's not the GPU with it being nearly £2k, I thought I'd never be ever to sell it on if it was that noisy.
It is... possible, but very unlikely. PSU fans are usually quiet at low load and the Phanteks AMP GH and the original AMP are both fanless at low load/idle. There's a switch on the back of both PSUs to turn that mode off.
The plot thickens! I was convinced my GPU fans were at 0%, I thought I seen them not spinning
but I must be wrong, here they are when my PC is idling (well, chrome is open) :
Would 1150 RPM sound like a quiet hoover? It would explain a lot and mean a return back to OC
If your case allows you could try flipping the PSU 180 degrees so the fan is on the other side to see if you still have the same noise issues.
Thanks I will have a look at the back of it tomorrow now, cheers. I'm at a loss to know what else it can be because as mentioned I've been able to set all GPU fans, case fans, and AIO fans to 0% but the humming remains.
I will have a look tomorrow and will get a photo of how close they are, thanks.
Cheeky, but to be fair, it really is very difficult to do this without being able to look at it.
Yep
but will check!Bit harsh! I've messed about with computers for years, done IT support and software development, why do u think I'm 'tech illiterate'? Sorry I have things to do away from the forum.when someone is this tech illiterate its really hard to do this on a forum with slow replies and we cant see whats going on easily
True!
