Naveen Vijay said:
but i tries s many ways... i connected Sapphire 1GB ddr5 to Asus M2n mx se plus motherboard. But display didn't came when i connected my monitor cable to card. power supply is suffificient( hytec 550W)
Welcome to the world of shady psu units.
That hytec is most likely NOT a 550w unit.
I suggest testing the card with an actual proper power supply.
You also should update to the newest bios available for that motherboard from the manufacturer's website.