I have build a PC before, but this time I'd like to build my PC into my desk. The problem is, it's made out of wood. What are the risks other then it catching fire ? And are there any ways of working around these problems ? I was going to water cool the CPU, since it's my first watercooled system, and the rest would be cooled by fans. The motherboard is going to lie on it's back, with the GPU facing to the side. It's a gaming PC that will have an i5 4670k and a msi GTX 970 4gb, 8 gigs of ram and a 600W PSU.