Monitors Shutting Down When Stressing Graphics Card?

Hello, Everyone (new on the forum )!

I have an issue with my monitors shutting down when stressing a bit the graphics card (usually 5 to 10 mins.), the PC stays on but I lose sound as well, almost as if it freezes. So, this started to happen when I added a 3rd monitor screen to the GPU ports (the GPU supports 2 HDMI´s, 2 DP´s and 1 VGI). Also, the keyboard LEDs start to flicker as if it struggled to get power.

*The only way to restore the monitors or PC is by manually shutting down the PC.

Power Supply Calculator says that based on my PC specs I need a 364 Watts Power Supply (I have a 600W).


I made some tests:

Tested the CPU cores for overheating (reached 80° as peak) during the higher test, also tested the GPU temp and it didn´t get beyond 74°. I also tried to remove almost all the power units from the outlet power bank except for the PC (maybe it didn't have enough power?). So I think it might be an issue either with the GPU or with the PC Power Supply...

PC Specs:

Motherboard: AORUS ATX H370 GAMING 3, S-1151, Intel H370, HDMI, 64GB DDR4

Processor: Intel Core i7-8700, S-1151, 3.20GHz, 6-Core, 12 MB Smart Cache (8th Generation Coffee Lake)

RAM Memory: 4x HyperX FURY Red DDR4, 2400MHz, 16GB, CL15

Video Card: Sapphire AMD Radeon RX 590 Nitro, 8GB 256-bit GDDR5, PCI Express 3.0

Hard Drive: Seagate Barracuda 3.5'', 2TB, SATA III, 6 Gbit/s, 7200RPM, 64MB Cache

Operating System: Windows 10, 64-bit Edition

Power Supply: Thermaltake 600W Smart 80 Plus White Atx

*Besides this, have the following stuff always connect to the PC:

1 Huion Kanvas Pro 16 inch Led Monitor Screen
1 Sharp 32" Plasma TV (old model)
1 23" Led Horizontal Monitor
1 USB Audio Interface: M-Audio Fastrack C400
1 Steinberg Lock (USB)
1 Led Keyboard
1 Mouse
1 Multi USB 3.0 hub which has its own power supply, this powers 4 Hard Drives, and 1 MIDI Keyboard
1 Ipad connected to the PC

I would appreciate any insight!

Thanks! https://forums.tomshardware.com/styles/bom/smilies/smile.gif

 

Sounds like your asking too much of your GPU, other hardware aside?

A great GPU Troubleshooter here!