I'm about to buy some more goodies for my pc and I am wondering what kind of power supply I will need to upgrade from a low grade 500watt.
Phenom IIx4 920, overclock to 3.7GHZ
ATI sapphire 5870 1gb.
Going to add around 10, 120mm fans.
Tuniq Tower 120 cooling the CPU.
And ordering a bunch of Cold Cathodes for the new case I'm making.
The reason why I need to know what kind of good power supply I will need is because I'm pretty sure a low grade 500watt powersupply won't be able to run all the new lights/fans, and all the other things I have.
And yes I maybe upgrading to an I7/Phenom II x4 965, new DDR3 board, and another 5870 sometime, so keep that in mind.
PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in dual mode)
Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
Minimum 1GB of system memory
Installation software requires CD-ROM drive
DVD playback requires DVD drive
Blu-ray™ playback requires Blu-ray drive
For an ATI CrossFireX™ system, a second ATI Radeon™ HD 5870 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required
The sweet spot for PSU's price / power wise is the 650 watter for an OC's machine w/ one GFX card and the 850 watter for two. yes, you can do less but remember that the best efficiency point (BEP) is at the 50% load point..... furthermore OC'ing requires stable voltages and stable gets harder the farther you get from that BEP.
I'd echo the 650 watt Antec EA-650 for your rig with the Corsair TX650 as an alternate for a moderately OC'd machine.....if you are going for real high OC's, then I'd upgrade to an Antec SG series, Seasonic X-650 or Corsair HX series.