Question Bought used RX 480, random black screens

Oct 23, 2019
4
0
10
0
Hi all! I just bought a used RX 480 4GB (Sapphire Nitro, not Nitro+).

I installed it last Sunday by doing this: I downloaded the latest RX 480 drivers from AMD's site, rebooted into safe mode, used DDU to uninstall all graphics drivers, shut down PC, replaced my GTX 750 TI with the RX 480 and connected my PSU's 6+2 pin PCIE connector.

So I booted up my PC, everything was working great with no problems, I did some web browsing and a couple of Dota 2 games. I don't have direct access on my PC right now since I'm only home on weekends. My brother uses it on weekdays though, mostly just browsing, web development and Dota 2. So my brother told me that this Monday and Tuesday, the PC had no issues, but just this Wednesday, it had random black screens (literally, NOT "No Signal" black screens) that lasts for a second. It occurred about 5 times while playing Dota 2, and a few more afterwards while doing web development. He shut the PC down but later that night, when he played Dota 2 again, black screens occurred again about 5 times.

Specs:
Motherboard: Asrock H61M-DGS rev 2.0
CPU: Intel i5 3470
Memory: 8GB DDR3
PSU: Thermaltake Smart SE 530W
GPU: Sapphire Nitro RX 480 4GB (was Palit GTX 750 TI)
OS: Windows 10 x64

Some background on where I got the gpu from: A shop that sells used parts from Korea. I had the gpu shipped to me, they gave a 1 month warranty, so it can be replaced if proven faulty. It makes me wonder though why they were selling Sapphire Nitro for RX 480, and not Nitro+. I searched the net for Sapphire RX 480, and very rarely does Nitro (non plus) come up, at this point I'm starting to suspect that the gpus they are selling have been used in mining. I found out though, that the random black screens have been an issue with AMD gpus these past few years, so maybe the gpu I got isn't faulty after all and that my issue is maybe just the same as everyone else's.

Still, I'm not really sure how to diagnose the real problem, I mean how do I tell if it's because of the gpu being faulty, something software related (drivers, win10), or something else entirely. Would a stress test like Furmark help determine if its a hardware issue? I can only list down things to do before I get home on Sunday. Any help would be greatly appreciated. Thanks! :)
 
Oct 23, 2019
4
0
10
0
black screen is driver <> gpu communication fail, nothing rare
can u try another PSU? yours isnt really great unit

btw hit win+ctrl+shift+b to reset gpu driver, screen should kick back in
Hi kerberos_20, thanks for the reply! So is it most likely a driver issue rather than the gpu being faulty? If so, then I'm feeling more positive.

I don't really have a spare PSU right now, and it's not on my plan to buy a new one soon either, but if it's the one causing issues, then I'll buy a new one.

About win+ctrl+shift+b, when should I hit it, whenever the screen goes black?

Thanks again! :)
 
Oct 23, 2019
4
0
10
0
Those symptoms are indicative of a cheap display cable. I had the same problem and swapped out a cheap HDMI cable for a higher quality one that resolved my issue. Your cable might be different, but i'd start there.
Hi SgtScream, thanks for the reply! I've been using the same DVI cable before with my GTX 750 TI and didn't have issues though but yeah, I might buy a new good HDMI cable. My brother has just said that no black screens have occurred since then though, but he hasn't done any fix yet. Hmm, that makes it even harder to diagnose the issue.

Still, I think I have to verify whether I got a faulty gpu or not, so I could still return it while it's in the 1 month warranty period just in case.
 

ASK THE COMMUNITY

TRENDING THREADS