Sapphire radeon hd 5450 crashing

for the past one week i have been trying to resolve this issue...but dont know what went wrong..
my monitor just shows a red screen and then goes black and just blinks the signal light....even if we restart the system,the blinking LED with
black screen continues...then i have to remove pc from power ,wait for 5 minutes then everything goes fine..
whats interesting is that even if the computer is at idle this happens .I checked the gpu aswell as cpu temperatures and they are at 52 and 45..
if i switch to integrated graphics everthing goes fine..
i updated my CC to latest and no change..
I am pretty sure that my psu can handle the card.
Pls help
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More about sapphire radeon 5450 crashing
  1. list hardware.......... don't forget make and model ps.
  2. swifty_morgan said:
    list hardware.......... don't forget make and model ps.

    CPU:Core2duo E7400@2.80GHZ
    MoBo: Intel DG41RQ
    RAM: 2Gb Ddr2 Kingston
    GFX Card: AMD/ATI Radeon HD 5450 1GB DDR3
    HD: 250GB Segate Barccuda
    OS: Windows 8 x32
  3. PS?.......... ( power supply ) make and model.

    check for dust build up on heatsinks and fans.

    have another card to try?

    have another cable to try?

    if you are using the vga socket............. do you have a dvi to vga adapter so you can try a different (dvi ) connection?
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