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I Have a HDTV coneccted via hdmi.
screen goes black for 2-3 seconds at random and then come back. This also happens in Bios & when play games.
I have tested the HDMI Cable & HDTV with other system and works fine.
I use the onboard intel hd graphics 4000, no other graphic card installed.
latest drivers for the graphic card & latest Bios are installed.
This is my system:
ASUS P8Z77-V Deluxe
Intel Core i7 3770K
Hope someone can help