Gigabyte GA-Z87X-UD4H - BIOS Startup - Black Screen

[Munnerlyn]

Good Morning,

Last night I built a computer with a Gigabyte GA-Z87X-UD4H motherboard. My specs are as follows:

Motherboard: Gigabyte GA-Z87X-UD4H
CPU: G3258
Ram: (2x4 GB) Corsair LP 1600 MHz 1.35 Volts
PSU: Corsair TX650
SSD: Samsung 850 EVO
HDD: Seagate 1 TB
Chassis: NZXT S340
Cooler: Hyper 212 EVO
GPU: MSI 7870 Hawk
Monitor: Samsung 42in 1280x720 (TV)
OS: Windows 10 64 Bit
BIOS Ver. (10A or 10B)

I was able to successfully install Windows without any problems. I have no issues with video output during the BIOS Splash Screen or with Windows 10 loading. The problem starts when I try to enter into the BIOS. The screen goes completely black (It doesn't say "no device connected" so I know it's doing something.) I'm using the HDMI output on my GPU to the TV. I've tried Display Port to HDMI as well with no luck. I've also tried using the integrated graphics HDMI output with no success. My next step is going to hookup a 1920x1080 monitor and see if that's supported in the BIOS.

My question is: Any ideas on what might be causing the black screen when I boot into the BIOS?

I think it could be that the resolution of 1280x720 is not supported in the BIOS but I'm not sure. Thanks again for any insight offered!

 

[Munnerlyn]

I pulled this comment from another member on Toms Hardware

raja@asusac100Ĉ ASUS ac105V Motherboard March 14, 2013 6:07:25 AM

"The issue for you guys not getting a display is a handshaking problem between your GPU and monitor. The only resolution supported by UEFI is 1280X1024. If for some reason your GPU and TV/monitor don't handshake at that resolution, you'll see the splash screen but either get a garbled display or no display in UEFI. You'll also find you're fine when in Windows (for obvious reasons).

There is no fix for this from our side. The GPU VBIOS and monitor native resolution are where the problem lies. If the display you've connected does not handshake correctly with the GPU for whatever reason, it will likely default to its native resolution, and if that's anything other than 1280X1024 you've got a problem displaying UEFI. This happens with some TVs, projectors and monitors with certain GPUs. Older displays are more likely candidates for such problems, as are very high res monitors that use new conections ( DP 1.2 daisy chaining two monitors can create problems) . I suspect a VBIOS update from the GPU vendor might help, but chances of GPU vendors making specific VBIOS versions for this are unlikely. Only workaround is to connect a display that allows you to see UEFI or try using another method of connecting the GPU to the display (DVI instead of HDMI for example). Obviously, the latter is not a guaranteed workaround, as it depends how the display and GPU handshake on that output, too."

I do have a spare 24 inch 1920x1080 ASUS Monitor im going to try tonight...

 

[Munnerlyn]

Another post to confirm a possible solution:

Praz-1abĈ ASUS abV Motherboard July 9, 2013 6:38:00 PM

"The UEFI (BIOS) only supports a single fixed resolution. Using a TV as a display can be problematic as most TVs do not support the resolution the UEFI is set to. The only real workaround is to temporarily connect a regular monitor."