If that computer is turned on it will make
one hell of a racket, do you know why?
The Power Cables are over the cpu cooler
causing the fan to be stopped by the cable force.
Both HDD and CD Drive are not connected to the
motherboard. and the HDD would be much safer horizontally as there is no FDD so put it there temporarily.
Thats About it, oh and it could also do with a bloody
good clean LOL