ok hello well i have 4 sticks of ram all are 2gigs per stick which adds up to 8 now when i put 2 sticks of ram in the mobo which adds up to 4 gigs everything is fine now when i put the other two sticks in the mobo which adds up to 8 gigs when i turn on my pc it powers up but my moniter doesnt turn on and i have windows 8.1 x64 oem