MOBO: 845(socket 478), J3160MP(modern CPU, 1151)
OS: DOS 7.1

The video cards are: FX5500, MX440, Gefore210(modern PCI-E cards, without power supply, Intel HMA 3000 within 1151)

From the beginning of powering up my PC to DOS Menu, the LCD screen will TURN BLACK IN ONE MINUTES AND COMES BACK TO NORMAL, with use of the these cards: FX5500, MX440, Intel HMA 3000(on J3160MP).

But, when I use G210, it works perfect!! The LCD screen will not turn black, will not on any game, apps.
IMO, is this related to the high rate of G210 to be matched with LCD rate??