A FRIEND GAVE ME A TOSHIBA X505 QOSMIO Q8100X THAT HE HAD BEEN WORKING ON. EVERYTHING WORKS EXCEPT SCREEN FLASHES AND WON'T COME ON. HE HAD DIGITIZER REPLACED. STILL DIDN'T COME ON. HE HAD A USED MOTHERBOARD AND CPU THAT HE INSTALLED. NEITHER WAS PART# OF ORIGINAL FROM MANUFACTURE. I KNOW THE CPU WAS FOR A 988 SOCKET AND MOTHERBOARD IS A 989. JUST WONDERING IF ANYONE COULD TELL ME IF MOTHERBOARD OR CPU WAS NOT COMPATIBLE COULD THAT CAUSE SCREEN NOT TO COME ON. ANY ADVICE, THANKS GUYS