Looking for some advice on PSU choice for the following system:
Gigabyte GA-EP45-DS5 (iP45 Express)
Intel E8500 - Looking to overclock this as much as I realistically can (Thermalright 120 eXtreme heatsink)
BFG 1GB GTX280 OCX
4GB OCZ PC2-8000 at 1000MHz
2x74GB WD Raptor HDD
1x750GB WD Caviar HDD
1xDVD/RW
4x120mm 2000RPM Sharkoon fans
7-8 USB devices, all of which rely on the computer for their power
Probably a sound card at some point
2.1 speakers
The various PSU calculator tools i've tried have come out at about 400-500W, though the BFG tech website says the following about the graphics card:
'575W PCI Express®-compliant system power supply with a combined 12V current rating of 42A or more (Minimum system power requirement based on a PC configured with an Intel Core®2 Extreme QX9650 processor)'
I'd guess I'm looking at at least a 700W power supply. I've searched around, but opinions vary considerably as to the best PSU for this kind of setup.
Will I be looking for a single 12V rail or multiple? A modular unit is vital for me as I don't have the biggest case.
http://www.scan.co.uk/Products/700W-...s80-Efficiency
http://www.scan.co.uk/Products/800W-...s80-Efficiency
http://www.scan.co.uk/Products/850W-...fficiency-RoHS
http://www.scan.co.uk/Products/850W-...ire-X-Quad-SLi
I've been looking at that lot...quite a variety of pricing there, and I'm no expert on PSU specs etc, so I'd appreciate some advice! Cheers..
(edit: On the mobo subject, what's the difference between the 'P45' and 'iP45 Express' chipsets?)