Flashed AMD Won't Display On Boot, Only in OS

barkovandrey04 · Jun 6, 2018

Hello everyone, my specs are as follows,
E5 2670 xeon
Non branded Matx x79 motherboard
16gb ddr3 ecc ram
480 GB SSD
750w psu
Be quiet Shadowrock LP cooler
Xfx Rx 580.
American megatrends bios on the motherboard

I recently flashed both bios on my GPU with ATI flash. Made the low power even more low power and increased the clocks and power consumption of the OC bios. After doing this to both bios, I can no longer see the bios of the motherboard or anything until windows 10 is done loading and I am at the lockscreen only then does the display turn on. This is an issue because I need to go back and change some of my motherboard bios settings but I'm unable to see it. Any ideas?

cin19 · Jun 7, 2018

Try this method to see you can save your rx 580 or not. http://www.overclock.net/forum/74-graphics-cards-general/593427-how-unbrick-your-bricked-graphics-card-fix-failed-bios-flash.html

If you can't work it out, contact xfx to see what they can help you.

barkovandrey04 · Jun 7, 2018

cin19 :

barkovandrey04 · Jun 7, 2018

Maybe I'm not asking correctly. But both the flashes are stable, I tested them within windows 10, ran superposition, played rainbow 6 siege, and fortnite for a couple hours each. So the 580 only begins to output, when the windows 10 login screen shows up. So it doesn't display anything before that, like the boot sequence, or the motherboard bios if I spam del. This isn't my first overclock so I know that the bios flashed settings are not the problem. Any ideas? I tried flashing the original bios back on the card and still, no video output until windows 10 login screen. I discovered that in the x79 motherboard CMS parameters, if I set the video oprom to legacy, then I can see the boot sequence and I can see the bios on the monitor, I had to use a different GPU that wasn't flashed to be able to do this and set the csm setting. The other GPU was a gt 640.

cin19 · Jun 7, 2018

Do you use two monitors or one? If you use two, make sure the HDMI cable is connected into the main monitor.

barkovandrey04 · Jun 7, 2018

I only use one monitor. I have the Rx 580 plugged in to it with an HDMI cable.

cin19 · Jun 7, 2018

Any ideas? I tried flashing the original bios back on the card and still, no video output until windows 10 login screen. I discovered that in the x79 motherboard CMS parameters, if I set the video oprom to legacy, then I can see the boot sequence and I can see the bios on the monitor, I had to use a different GPU that wasn't flashed to be able to do this and set the csm setting. The other GPU was a gt 640.

Sorry I don't know, it should be related to that you flash the GPU's BIOS.

Or try clear the CMOS to set the BIOS setting, or may try update the MB BIOS, if you want to try, because that will rewrite the BIOS to the newer one.

barkovandrey04 · Jun 7, 2018

Yeah I've narrowed it down to the GPU flash. Sincey motherboard is an x79 one from Ali express, there actually isn't any way for me to update the bios. It also might be a motherboard issue since it's so outdated. I tested the rx580 on my dad's system that was built just a couple years ago, and it shows new everything just fine, I can see the bios, and the boot sequence. I'll be picking up a new x79 motherboard from a reputable manufacturer and I'll update if there is any difference.

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