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occasional white screen RX570 Mojave

Joined
Dec 26, 2018
Messages
7
Motherboard
ASRock H370M-ITX/ac
CPU
i5-8400
Graphics
RX 570
Mac
MacBook Pro
Mobile Phone
Android
Hi everybody,
I've build a hackintosh machine with these hardware.

CPU: i5-8400
Motherboard: ASRock H370M-ITX/ac
GPU: ASRock RX570 4G Phantom Gaming
SSD: SAMSUNG 970 EVO 250G NVMe
Memory: Team DDR4 2400 16GB
Wi-Fi: Lenovo BCM94352Z


Everything looks like perfect, including Wi-Fi, Bluetooth, GPU, .etc.
So I used it as work computer, and took three 1920x1080 moniters with three DisplayPort in ASRock RX570.
I put it to sleep at night instead of shut done it.

Now the problem is that it occasional white screen in all three moniter and the mouse cursor is gone too. But the machine is still running, and I have to force it to restart. One of them happened after working for five days, and the other happened after working for nine days.

It looks a bit like the gpu crashes, but I'm not sure.
At first I used the Sapphire RX580 8G when I install the Mojave. Later, for a smaller case, I changed to ASRock RX570 4G Phantom Gaming without reinstall Mojave. I am not sure if it is related to this.

Any advice will be appreciated!
 
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