my sapphire r7 260x videocard wont work on my gateway dx438og desktop

twistedx · May 31, 2014

i ben trying for 3 hrs to install my video card i disabled the on board graphics and even uninstalled it but still no signal to the monitor

ThatVietGuy · May 31, 2014

Obvious question: did you make sure to plug in the 6-pin power connector? Is your PSU at the recommended wattage (500W)?

twistedx · May 31, 2014

twistedx · May 31, 2014

my power supply is an ultra atx 550

ThatVietGuy · May 31, 2014

Pull the CMOS battery for 10-15 seconds and replace.

ThatVietGuy · May 31, 2014

You can also try this: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

Also, for future reference, post the exact specs of your computer.