Vega 64 black screen on boot - AM3+ board

[Varwen]

Hi All,

Caved and bought a vega 64 in the black friday sales with the intention of sticking it in an old AM3+ rig. Intention was to set it up in there and set it mining for a month or so while I collect parts to build the rest of a new system. Trouble is I've stuck the new card in and I'm getting no output to the monitor - can't even get into bios. Lights and fans are all okay, just nothing on the screen.

The motherboard is an Asus RoG Crosshair V Formula (990X chipset), with a Phenom II 955 Black Edition CPU and 8 gigs of ram. PSU is a decent 750w corsair, so no issues there.

I've read that a mobo bios update should allow the board to recognise the PCie3 card, but without the old card to stick back in I have no way of testing that theory. I can borrow my old card back if that's likely to fix, but just wondered if anyone here had experienced similar! What do you guys reckon - should a bios update sort, or do I need a new mobo?

 

[ubersonic]

It should work with the latest BIOS, people are using them on older AM3 boards. How are you connecting the monitor?

 

[Yardbird]

I am on 1150 mb and i had issues with it recognizing VEGA with 96 error code sometimes ( which would give me black screen on boot ). Since i changed PCI to GEN 2 from auto in BIOS settings its booting 100% ( card is showing PCI 3.0 16x in GPU-z and Hwinfo )

Hello forum

 

[Varwen]

Thanks both - as I had hoped! Will see if I can borrow the old card back and have a dig around in the BIOS.

Have tried two monitors and had the same result with both, one via HDMI and one VGA with a displayport -> VGA adapter.

Welcome Yardbird!

 

[ubersonic]

Have tried two monitors and had the same result with both, one via HDMI and one VGA with a displayport -> VGA adapter.

Just a note, normal DP > VGA adapters don't work with modern AMD cards (or 10 series NVIDIA IIRC) as the cards don't support analog. It has to be the more expensive "active" converting adapters.

HDMI should have worked though.