Do I need more power?

Hi,
Thanks for taking the time to help me today! :)
I am upgrading my motherboard, ram, and video cards, and need to know if i need a better power supply.

Current PSU: Ultra LSP 650w PSU

My new board: ASUS SABERTOOTH 990FX R2.0 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS

New Ram: G.SKILL Trident X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-1866C8D-16GTX

New video cards:
2x: HIS H679F1GD Radeon HD 6790 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity (with crossfireX cable)

Currently:
One Asus DVD burner
One OCZ vertex 4 128gb SSD
One 2tb WD Green 3.5" drive
one 1tb Wd black 64 mb cache 3.5" drive
AMD Phenom X4 965 Black Edition (not overclocked)
Nocturna aftermarket cooler (AM3)
8 answers Last reply
More about power
  1. Yes get a new PSU..that one is bad...Here is a chart and calculator you can look at..

    http://www.eggxpert.com/forums/thread/323050.aspx

    http://www.extreme.outervision.com/psucalculatorlite.jsp
  2. I would get a better power supply. That one doesn't have much 12v amperage compared to a quality corsair or seasonic would. Also why 6790's? Those are quite outdated at this point.
  3. It seems that you have enough power for your build, I don't think you will need to worry.

    http://support.asus.com/powersupply.aspx

    Try the link, since you are the one who knows what will be plugged in at all times. But it is wise to avoid the budget cheap brands since they are not very good. Try Seasonic, Corsair, XFX.

    (Note this is the Minimum Recommended amount, try to have about 50-100 more watts)
  4. Go with this fast single card over those 6790's. This one is nearly as fast as a 7950, which would be faster than 2x 6790's. It will be extremely faster in games with poor CF support.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16814202024

    http://www.techradar.com/us/reviews/pc-mac/pc-components/graphics-cards/sapphire-radeon-hd-7870-xt-1130535/review
  5. logainofhades said:
    I would get a better power supply. That one doesn't have much 12v amperage compared to a quality corsair or seasonic would. Also why 6790's? Those are quite outdated at this point.


    Well i was running a single EVGA 512MB 9800 GTX and a friend sold me 2 of these both for 100 bucks, so I couldn't pass it up, and the only games I play are diablo 3 and dirt 3 for now.
  6. logainofhades said:
    I would get a better power supply. That one doesn't have much 12v amperage compared to a quality corsair or seasonic would. Also why 6790's? Those are quite outdated at this point.



    Well i was running a single EVGA 512MB 9800 GTX and a friend sold me 2 of these both for 100 bucks, so I couldn't pass it up, and the only games I play are diablo 3 and dirt 3 for now.
  7. That is a nice PSU. I have the original version and it has been great. $100 for both cards was a steal. Just wanted to make sure you weren't buying them new. :D
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