I recently bought a Radeon 5770, but could not work. I did connect properly, bought a bigger power, but the PC does not even start. The fans were working but the monitor was stand by and nothing happened, so I went back to my card and get another, but this time nvidia and here comes my problem in this: I changed it to a top 460 asus 768 MB but still I have problems with it, I have a resolution of 640x480 with 4 bit color and cannot be changed. Windows cannot see my card correctly; the device manager wrote there are problems of supply.
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