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PC Drivers & Software

sagi
Journeyman III

black screen issues

my mobo is      Ga  890 gpa ud3h version 2.1

prossecor  1090t

ram 16

psu 300   works well

video card is 4290 built in works fine

monitor syncmaster 1930b .. works well with at 1920  1080 through hdmi cable converter

however

when i try to install hd 5450  or 6770 graphic card    sometimes... driver will install correctly but it makes my screen resolution stuck at 1366 768   the 1920 1080 is still available but when i check it monitor goes off and i had to restart pc

and sometimes when i try to install the driver for 5450 or 6770 it comes to installing the display driver the screen goes black and i hear like a restart but nothing happenes...... any fix for this problem?

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