Hellow i have his video card MSI R6570-MD1G/LP Radeon HD 6570 1GB 128-Bit DDR3 PCI Express 2.1 x16 HDCP and y turn on the pc and my gpu card have a 50 °c , in games is up to +/- 56°c , i cant find the normal temperature of the video card so you can tell me if this is normal temperature? and something more , there is no problems whit the power souce , and it starts to go black , and then its go back , and black , over and over again , can you tell me what is goin on in my pc?my pc have a , intel core 2 dual 2.54 ghrs , 2 gb of ram , 580 watts power supply.