gigabyte motherboard can't enter into BIOS setup withn XFX R7850

[ajimohan]

I had a gigabyte mobo with XFX R7850 core edition, my problem is when i connect to the graphics card's DVI icant enter into bios setup, monitor shows no signal, but it connect to on board VGI everything works fine. Please give me a solution

My RIG:
Mobo :Gigabyte GA-78LMT-S2PT
CPU :Amd FX 4300 3.8GHz
Ram : Corsair Vengeance DDR3 4 GB (1 x 4 GB)
Gpu : XFX ATI Radeon R7850 2 GB DDR5 core edition

Thank you in advance for any help,
AJI MOHAN

 

[sourodip]

Well, your motherboard does support the fx4300 only with the rev. 4.x.I suppose u have that rev. version of the mobo.
Have u plugged the 6-pin pci-e connector from the psu to the gpu(graphics card)? What psu do u have?give it's details.

 

[ajimohan]

yes, I use corsair VS550, and connected PCI-E 6 pin connecter to the graphics card and also the fan in GPU is working.

 

[sourodip]

Have u plugged in the DVI-VGA adapter properly and the power cable of monitor properly?
Is there any display? i mean, is the case like this i.e., "U cannot enter the bios during booting but u are getting the display when u are logging in",is this the case?