Vertical grey bar screen of death

[Jonathan Wright]

Hi all
My 20 inch LG VGA monitor is running off an Powercolor R9 270 graphics card and my other 19 inch LG VGA monitor is running off my A8-3850 integrated graphics, the 6550D from AMD. While playing Dota 2 or War Thunder (two VERY different games performance wise and game engine wise), the 20 inch monitor will suddenly go into the bar screen. Sound will cut out and the entire PC will hang, never to recover until I push the magic reset button. The second 19 inch will continue to display whatever was last on it like nothing has happened.
The card has been tested from where I bought it without error.

This link is to a google image which is what I get: http://tinypic.com/view.php?pic=34qpsnr&s=6#.U4xIiPmSySo

PC specs are:
Powercolor R9 270
AMD A8-3850 with 6550D
8GB DDR3 RAM
1TB Seagate HDD
Coolermaster 500W PSU
ASUS A75 motherboard

 

[i7Baby]

Sounds like a problem with the R9 270

Overclocked? temps? fan speed, gpu MHz, Memory MHz, Voltage?

download and run hwinfo - sensors

also give cpu temps, Vcore, MHz, fan speed

and psu 12v, 5v and 3,3v readings

 

[Jonathan Wright]

Not overclocked (by me or factory). Temps don't see to be an issue (I've had the card since December last year, only in the last two weeks this happened). Will try hwinfo.

 

[Jonathan Wright]

Sounds like a problem with the R9 270

Overclocked? temps? fan speed, gpu MHz, Memory MHz, Voltage?

download and run hwinfo - sensors

also give cpu temps, Vcore, MHz, fan speed

and psu 12v, 5v and 3,3v readings

What am I looking for should the PSU be faulty? The 3.3V rail is not running at less than 3.3V, the 5V rail not less than 5V, while the 12V rail runs at an average of 11.998...

 

[i7Baby]

OK - those voltages are OK

gpu temps? fan speed, gpu MHz, Memory MHz, Voltage?

cpu temps, Vcore, MHz, fan speed?

 

[Jonathan Wright]

OK - those voltages are OK

gpu temps? fan speed, gpu MHz, Memory MHz, Voltage?

cpu temps, Vcore, MHz, fan speed?

My card maxes at 95% usage with an average of 85% with the very demanding War Thunder Ground Forces graphics on max. Temperature averages 65 degrees celsius and fan speed at no more than 40% average. CPU chugs along at 85-95% usage being the nimble AMD APU it is, temps never exceed 62 degrees celsius and the Vcore sits at 1.4*V max and is stable at that value during gameplay. I did some live monitoring through ASUS AI Suite II, and the 12V rail drops as low as 11.4V at times, with the 3.3V and 5V remaining perfectly fine.

 

[i7Baby]

Can you try another graphics card or try your graphics card in another pc?

What if you swap monitors around?