Ill give as much information as I can. I have a Dell 530 Desktop Quad core with 2 extra gigs of ram I added by myself as well as an 8800 GT I added.

I turned it off for the first time in a good week or 2 and when I tried to turn it back on it would try and the fans would jerk and continue to do so but it would never get full power.

I took out 2 of the ram sticks, turned it back on an it worked fine. Then I put both back in turned it on and it worked fine again. Well after 2 days I shut it off again and had the same problem when I attempted to turn it on.

Again after I took 2 of the sticks out it turned on, this time though it would not turn on with either or both of the sticks in. I tried every combination possible but the only way I could get it to turn is with both ram sticks out.

PS this computers obviously a few years old and had everything "aftermarket" since the day I got it and ran flawlessly since that time until now.

Thanks in advance for help