No BIOS display booting newly build machine

Ken 7850K · Mar 28, 2014

I have just built a new machine with a Gigabyte G1.Sniper A88X MB and AMD 7850K APU. But nothing shows on startup, I've tried the VGA, DVI and HDMI ports. The fans start on power up and I can shut it back down by holding the power button for a few seconds.

So re-reading the Gigabyte site I find:-

"To enable AMD FM2+ APU support, please update your motherboard with latest version of specific BIOS and driver in Motherboard's Download section once available"

So how do I do that with no BIOS prompts I can see?

Malignant PC · Mar 28, 2014

First, work through the steps in this thread:

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

Without display you will have to blind navigate the BIOS prompts. Check this link out for flashing your bios:

http://www.gigabytenordic.com/wordpress/flash-update-bios-gigabyte-fm2-motherboards-support-new-kaveri-apu/

James Mason · Mar 28, 2014

Or buy a temporary processor to get it running so you can update the bios:
http://pcpartpicker.com/part/amd-cpu-ad4000okhlbox

Ken 7850K · Mar 28, 2014

Malignant PC :

Interesting troubleshooting guide, I haven't tried bread boarding it yet. But removed memory and it beeps like a good un, I also hadn't mentioned that the CPU fan starts fine and the power led comes on.

Thanks for the posts, I'll keep working through them.

Malignant PC · Mar 30, 2014

check back with us if that thread doesn't help

Ken 7850K · Mar 30, 2014

Malignant PC :

Thanks - I will. I stripped it right back to just MB, Memory, Processer, speaker and the power switch cable connected. Same result, I borrowed some memory out of my current machine in case the 2400 memory I bought was a problem - same result.

So I've just order a cheap FM2 APU and I'll borrow a PSU from work, then build it all outside of the case. As the cooler I bought is easier to fit with the MB out.

Oh - And I've raised a ticket with Gigabyte - I don't know how responsive they are.

But if I solve it, I'll post back anyway.

Thanks

Ken 7850K · Mar 31, 2014

So bought a £30 A4 5300, dropped it in and it booted first time. Updated the bios to F7 from the boot USB created from your instructions. Swapped back to my proper A10 7850K and it booted fine.

I think Gigabyte should make this clearer, I'm still waiting for an answer to my case with them...

So warning to everyone, don't get this G1.Sniper A88X board and an FM2+ processor, unless you'd like to also buy my temporary A4 5300 or similar i.e. an older FM2 processor.

Hopefully later motherboards will have BIOS F7 or later.

Thanks

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