New RX 470; black screen

thestaggy

thestaggy

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I helped my brother build a new PC last night.

Upon completion we fired it up, the lights came on, the fans spun in to life, but we just get a black screen. We tried fiddling with the RAM (RAM gave my new PC issues), nothing changed. Then we removed the GPU and the PC booted up perfectly, allowing us to install windows.

We shut the PC down, reconnected the GPU again, fired her up and once again we just get a black screen.

Could BIOS be an issue here? It is a Gigabyte B150 mobo which is considerably older than the ASUS Strix RX 470 GPU. Potential compatibility issues?

Only other thing we can think of is a faulty GPU or Mobo PCI slot, but the GPU seems to be getting power and spinning/lighting up.
 
You are not trying to use vga monitor by any chance?

None of new cards support vga, even if the converter fits. Cards only supports digital monitors.
 
Check the setting in the bios that tells the PC whether to use onboard or the external graphics adapter...it should be on AUTO or PCI-E graphics first but maybe it's set to on-board, disabling the external graphics adapter.

tbh, don't even know why that setting is there.
 
I had to do a bios update to my Motherboard to get my RX 480 to work on my old pc, it was pretty easy downloaded some gigabyte app and it auto updated everything.

Plugged everything back in and it worked.

Also try a different HDMI cable you never know when those things are faulty.
 
Scary_Turtle said:
I had to do a bios update to my Motherboard to get my RX 480 to work on my old pc, it was pretty easy downloaded some gigabyte app and it auto updated everything.

Plugged everything back in and it worked.

Also try a different HDMI cable you never know when those things are faulty.
Click to expand...

He got everything from Rebel Tech and they claim they updated BIOS to ensure compatibility with the new Kaby Lake CPU. Probably wouldn't hurt to have a look ourselves though.

HDMI cable is fine as we took it from my setup.
 
Neoprod said:
Check the setting in the bios that tells the PC whether to use onboard or the external graphics adapter...it should be on AUTO or PCI-E graphics first but maybe it's set to on-board, disabling the external graphics adapter.

tbh, don't even know why that setting is there.
Click to expand...

Plenty good reason why, the one being that when upgrading to Windows 10, it automatically looks for onboard graphics and completely bypasses your secondary card, which will always end up giving you a blank screen. This only happens on some pc's though
 
Purply said:
Plenty good reason why, the one being that when upgrading to Windows 10, it automatically looks for onboard graphics and completely bypasses your secondary card, which will always end up giving you a blank screen. This only happens on some pc's though
Click to expand...

I get you but that's not what I was meaning...the BIOS still needs to report to Windows what the graphics adapter is (like it does with all hardware) but the setting should be automated. If there is an external graphics adapter present, set the display preference accordingly and pass to OS.
 
thestaggy said:
I helped my brother build a new PC last night.

Upon completion we fired it up, the lights came on, the fans spun in to life, but we just get a black screen. We tried fiddling with the RAM (RAM gave my new PC issues), nothing changed. Then we removed the GPU and the PC booted up perfectly, allowing us to install windows.

We shut the PC down, reconnected the GPU again, fired her up and once again we just get a black screen.

Could BIOS be an issue here? It is a Gigabyte B150 mobo which is considerably older than the ASUS Strix RX 470 GPU. Potential compatibility issues?

Only other thing we can think of is a faulty GPU or Mobo PCI slot, but the GPU seems to be getting power and spinning/lighting up.
Click to expand...

Hey bud.

Best to try another GPU first and the another pcie slot. If other gpu works but rx doesn't then pretty save to say rx is not being a nice player.

Here to help :)

Thanks
 
It could also be a dud out of the box, wont be the first time that happened.
 
UPDATE:

Stripped the whole thing and rebuilt it. Fired up first time. . .

We can't pinpoint it, but obviously something was not seated correctly. Only the second PC I have built and mine didn't work the first time because of a poorly seated RAM card. Now I know, check, and check again before you hit panic stations.
 
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