RX 580 has "Abnormal Power Supply"?

JoshToMorgan · May 20, 2017

Specs are:

AMD Ryzen 1600
MSI B350 Mobo
Vengeance LPX 8gb (Single stick, currently)
WD 1tb HDD
Gigabyte RX 580 8gb
SeaSonic 520W 80+ Bronze-Cert Fully Modular

After inserting all parts in my case (I should have assembled parts outside first, I know) all GPU fans power on, and GPU's Gigabyte logo on the side lights up.

However, the B350's EZ Debug LED indicates "the booting device is not detected or fail." The GPU led, which is also on the mobo but separate from EZ Debug LEDs, also lights up, indicating "CPU's IGPU is not detected and you need to install a graphic card." Additionally, the GPU has a small light which is blinking intermittently, indicating "Abnormal Power Supply."

PC Part Picker and another site showed that my rig would use 350-360 watts, so my 520 watt PSU should be enough, but I don't have any other GPU's or PSU's to rule anything out.

Anyone have any ideas?

DRagor · May 20, 2017

Did you connected power plug(s) from PSU to the GPU and monitor to GPU not to motherboard? Also I would not worry about Boot LED - if you don't have Windows installed on HDD, then there's nothing to boot from, so the led should be lit.

JoshToMorgan · May 20, 2017

Yes, I have connected power from GPU to PSU, and I have swapped out that cable, I have swapped positioning of the cable in the PSU, but all the same.

I have plugged My GPU into an LG monitor via HDMI, but I am met with an error message that reads "No signal for current input device. Check the status of external equipment. Try other available inputs."

DRagor · May 20, 2017

Something is down then. It could be GPU, it could be PSU failing at 12 V line or it could motherboard failing at PCIe slot. If mobo has another PCIe x16 slot, try installing GPU there.

JoshToMorgan · May 20, 2017

Mobo has a PCIe x16, and PCIe x4, neither of which work. I would be inclined to think that the GPU is faulty, but the Gigabyte logo on the side is lit up, and cycling through the RGB spectrum, and both fans are spinning.

Another thing, the on-board GPU light doesn't shine when there are no problems, and blinks when there is an abnormal power supply. The light will blink 2-5 times, then stop for about 1-2 minutes, then repeat.

DRagor · May 20, 2017

It takes only few W of power to make fans and leds work on GPU, way more to make it run.
On board GPU LED might be blinking when GPU is not detected or otherwise found not working by motherboard, since Ryzen has no iGPU it would be expected behavior.

JoshToMorgan · May 20, 2017

Perhaps, do you think ~170W overhead is not enough? Here is my PC Part Picker list, with estimated wattage usage.

https://pcpartpicker.com/user/halfpressshift/saved/DCThMp

I really thought 520W would have been enough, but the seemingly random light patterns may be indicative of power spikes, if that is a possibility.

maxwellmelon · May 20, 2017

are you sure cpu is installed correctly and heat sink? nothing is on the cpu socket pin area? have you tried it with the hard drive disconnected and any other item not needed? are you sure you had no extra standoffs? have you tried to reset the cmos? just some things to check

DRagor · May 20, 2017

JoshToMorgan :

PSU wattage is fine. Guess my wording was not good - card can still be faulty even if fans/leds work on it as it does not take much power to make them work.

JoshToMorgan · May 20, 2017

Maxwellmelon - I reinstalled my CPU/heatsink and tried your other suggestions with no changes in performance. Any other ideas that I can try?

DRagor - Do you know of any ways to test for faulty GPU's? I don't want to have to buy a new one to check or send it back to the carrier if possible.

DRagor · May 20, 2017

Put the GPU in other comp - fastest and cheapest way to test it.

JoshToMorgan · May 20, 2017

I don't have any other desktops, just laptops.

DRagor · May 20, 2017

A friend with desktop would do. It takes few minutes to test GPU.

JoshToMorgan · May 20, 2017

I just moved to a new town a few weeks ago, and don't know anyone with a desktop I could use, already checked. :/

DRagor · May 20, 2017

And you can't run Ryzen build without GPU. Stalemate.
Ok, last chance attempt then. Minimal build outside case: just motherboard, PSU, CPU and cooler, GPU and 1 stick of ram. No USB things, no drives. If still nothing, I'm afraid, at that point you will need to look for a service of comp shop. Without spare components, there's not much else that can be done.

JoshToMorgan · May 20, 2017

I attempted your suggestion, and the problem persisted, so I went to Best Buy, and picked up a Corsair CX650M PSU and an XFX Radeon RX 460 4gb GPU. I swapped out my PSU and GPU with the new variants, and I'm still having this problem.

So now it's down to mobo, cpu, or just some weird, unknown loophole that is causing my system to fail.

I'm at wit's end, this is becoming much more difficult than I imagined it would be.

DRagor · May 21, 2017

I think you can assume it's not CPU. You would see CPU debug LED lit if motherboard was ok and CPU not.

Yorick_2000 · May 30, 2017

I also had the same problem. I had my PSU connected to a socket box *(don't know if that is an english word). I changed the plug to a normal socket and not a socket box.
this fixed the problem for me, hopefully it helps you.

gamerangeres · Nov 17, 2017

Can u solved the problem? i have the same :/

JohnnyChimpo123 · Dec 10, 2017

Also having this issue, nothing randomly shuts down and I'm not having any other issues, just randomly blinking white LED above the GPUs power plug. I've given up and just decided it must be a false blinking and am ignoring it for the time being.

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