Yesterday I bought some new part for my PC:
Asus M4A785TD-V EVO/U3S6
AMD Phenom II X6 1055T
Saphirre HD 5770
Zeppelin DDR3 2x2GB
And the problem is, when I start my PC first time, everything is OK. But after reboot nothing happens. I can see only a black screen with a small flashing cursor in top right corner. It is no possible to go to bios.
Then I must turn the PC off for cca 30 minutes, and then happens the same. After reboot I can see black screen