MSI R7850 Computer not posting when plugged into HDMI

[dedeaux]

I have a PC that has been using a MSI R5770 for several years, and I upgraded to a MSI R7850 about four months ago. Recently the computer began acting strangely, in that it wouldn't bootup/post sometimes.

I narrowed it down to this: when I unplug the HDMI cable from the card, the computer will post -- giving the beep and then booting up the OS. I have the computer connected to a Samsung LED HDTV.

My setup is:
MB: MSI 890MX-GXM-G65
CPU: AMD 1055T
RAM: Gskill 2x4gb ddr3
PSU: CMPSU-550VX (Corsair 550)

As far as I am aware, I am up2date on BIOS for the MB.

I don't have any other way to connect the computer as all I own are HDMI hd TVs. I have put the olde MSI R5770 back into the machine and it boots just fine.

Any help would be appreciated.

 

[dedeaux]

We'll see how this goes, but after noticing that the MB BIOS version was being reported as 'Unkown' inside Windows, I decided to download and flash the latest BIOS again. This seems to have cured the issue. If the problem returns, I will seek further assistance.