Hi, yes i tried the 4 tunner ( TBS6984 ) card and 2 of the tunners are dead, the first 2 always dies, its like firmware corrupted on them, it shows me SNR100% and Signal 0%, even if no cable is hooked up. i tried 4 pci-e cardson 1 computer , i open 12 Muxes ( Tunners ) works Fine, as long as i open ...