Can you Quad CrossfireX 4870's

I believe you would be looking at a pair of 4870 x2's, in that case.

As far as power consumption, the number that pops in my head is 260 watts under load. Though I may well be completely wrong on that, and will shortly suffer gleeful correction on that at the hands of someone else.

So, 260 watts x 2, plus whatever else you need for the rest of the comp.

Personally, I'm one of those a$$holes who figure out their actual 'needs', then doubles that. And I also believe in buyng top tier components. So if you're looking to save some cash, I'd be a pretty poor reference.

I'll excercise a little restraint on the output end of things, and say it'd be really hard to go wrong with a PC Power and Cooling QB750, $139 at newegg: http://www.newegg.com/Product/Prod [...] 6817703009

Are there any Quad PCI-Express motherboards that support 2.0 and are Crossfire to use 4 Radeon 4870 X2, and with a Intel 9450 CPU and about how much power would that consume. Would a Thermaltake Toughpower 1200 Watt PSU that is Crossfire certified power-supply be the option?

Thermaltake is a rather good brand, and anything that's 1kW or higher should provide sufficient juice to run pretty much any rig you can plug it into.

And as a note, there technically aren't any motherboards capable of using four PCI-express slots together at once; there is a motherboard or two that has four slots, but they can only be used to drive separate displays. Quad CrossFire and Quad SLi rely on using a pair of dual-GPU boards, like the 4870X2.

Could you bottle-neck on 2 4870 X2 with a Intel 9450 processor, and (3) VelcoRaptops in RAID 5?