My brother recently tried putting his 5770 in his computer. This is all inside this case(http://www.newegg.com/Product/Product.aspx?Item=N82E16811129146). Specs to best of my knowledge:
2.4Ghz Quad Core CPU
4GB DDR2 RAM
320GB HDD
300W PSU
Since the 300W PSU couldn't power all of that and the 5770, he got one of these(http://www.newegg.com/Product/Product.aspx?Item=N82E16817104054&cm_re=independant_power_supply-_-17-104-054-_-Product) just for the 5770. After hooking everything up correctly, and pressing the power button on the PC, everything seems to turn on(including the 5770 with its loud fan), but there is no signal to the monitor. He tried both DVI slots on the card, but neither of the HDMI slots. He also tried a different monitor. I honestly have no idea what the problem is and would really like to get this resolved ASAP so I can be done helping him with his PC problems. Any feedback is appreciated. Thanks ahead of time.
2.4Ghz Quad Core CPU
4GB DDR2 RAM
320GB HDD
300W PSU
Since the 300W PSU couldn't power all of that and the 5770, he got one of these(http://www.newegg.com/Product/Product.aspx?Item=N82E16817104054&cm_re=independant_power_supply-_-17-104-054-_-Product) just for the 5770. After hooking everything up correctly, and pressing the power button on the PC, everything seems to turn on(including the 5770 with its loud fan), but there is no signal to the monitor. He tried both DVI slots on the card, but neither of the HDMI slots. He also tried a different monitor. I honestly have no idea what the problem is and would really like to get this resolved ASAP so I can be done helping him with his PC problems. Any feedback is appreciated. Thanks ahead of time.