bios display problem

Hi to all,

I just bought an ECS rx480-a motherboard (supposed new) and a Nvidia
quadro fx1400 (used) graphic card.

When I boot, some displayed characters are mixed up and/or flashing.
E.G, Some letters like a 'D' will be replaced by @, sometimes not. An
'a' will be replaced by a 'q', sometimes not. If I enable the default
booting image, 'presenting the motherboard', some pixels of the image
are flashing. At every boot, the same pixels are flashing. Inside the
bios setup, same problem occurs.

I installed both windows and linux with the nvidia drivers. and the
display is no problem once in the OS. I flashed the bios and it did
not solve the problem. In linux, if I exit the X server and fall back
on the vga display, the problem occurs again. Note that the fx 1400
card has a dvi output interface, not a vga...

I don't have a second graphic card to test the motherboard and as the
display is fine once in the OS, I tend to assume that the problem is
from the motherboard. Am I right?

Should I buy a new 'cheap' graphic card, just to compare the boot
process? I need a little guidance on how to troubleshoot my problem.

Thanks,

Olivier Henley
.

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