GA-Z68XP-UD4 , Irregular boot loop issue after installing Gigabyte 7850 GFX card

[sam0t]

Another dissapointment.  

GV-R785OC-2GD card at VBIOS F31 and MB GA-Z68XP-UD4 on F6 BIOS made no change, again one day without issues then boot loops resumed.

Next I though to give the MB UEFI BIOS (U1g) another go now with the GFX updated to VBIOS F31 . Unfortunately this combination does not give any video output at all so had to revert back to BIOS F6 again!  I find this odd as the 7850 VBIOS F31 especially mentions that it is a "UEFI BIOS" , http://www.gigabyte.fi/products/product-page.aspx?pid=4155&dl=1#bios

The older 6850 again works alright with motherboard with UEFI BIOS U1g.

Will ask Gigabyte support for input on this matter and recommendation on how to proceed.

[sam0t]

Adding my latest test results with the with the GV-R785OC-2GD card with tests systems:

My own system, Gigabyte GA-Z68XP-UD4 rev 1.0 motherboard, Intel i5-2500K
processor:
* Boot loops occur randomly during boot with GV-R785OC-2GD card installed.
* Works alright with the older Sapphire 6850 GFX card

Friends older system, Asrock G41MH/USB3 R2.0 motherboard, Core2Duo processor:
* With GV-R785OC-2GD system produced graphical corruption on one boot out of ~20.
* System works alright with older Nvidia 580 card.

Loan system, Dell Aurora R4 with Intel mATX X79 motherboard, Intel i7-3939K
processor:
* System does not give picture from DVI connector with GV-R785OC-2GD card installed.
* System works fine with its own NVIDIA GeForce GTX 580 card installed.

So far the 7850 card now has now demonstrated out of normal behavior in three different systems. The Dell Aurora R4 system's no display being the strongest indicator that there is something wrong with the card. I will bring this up with the reseller where I got the 7850 card.

[ex58]

Did you try latest U1L BIOS?

[sam0t]

Gigabyte support provided me with U1L beta bios, unfortunately it made no difference to boot loops.

I took the GFX card back to retailer and going to receive a new card within a week. Will update this thread once I have had few days to test stability with the new card.

[sam0t]

Update as promised,

Received a new Gigabyte 7850 card last Wednesday, 27 March and system has been stable with the new card. I believe it is safe to say this problem is now resolved.

[dmdilks]

Glad you got it fix and sometimes it isn't the board.

Here is a little program to check everything. HWiNFO64