Solved

New build 6990 + 8130p when it comes out how much power?

I am slowly but surely building a new rig, but do not really know how much power i am going to need. I have used a few power supply calculators and they are giving me a huge gap, some say 1200 :o some say 850? So I'm tired of the time wasting lol I've been looking for a power supply for 3 days now and 9 hours of looking at a screen and not buying is driving me crazy. So I figured I'd ask you all...

my finished rig will include a FX-8130p i will over clock it when it needs to be but june of 2011 is not that date
A ROG motherboard
8mb of ddr3 1866 to 2200 what ever is supported
a raven 3 case with all the fan slots filled
a 1 TB 7200rpm HD
a 64-120 gb SSD
4 to 5 USB powered items
either a 6990 or 2 6970s have not made my mind up yet
1dvdrw
and an aftermarket cpu cooler
some of the PSU ive been looking at include a enermax gold 900w but it says 990 peak
a ST1000
ive also looked at some 1200+w units
Point is i cant make a good decision when the calculators are giving me 350 w differences.
any help is very welcome
8 answers Last reply Best Answer
More about build 6990 8130p power
  1. Best answer
    A 6990 would require arround 300 Wats at its maximum.

    Leave another 150 W for the rest of your PC.

    And give an extra to be safe and to cover overclocking...
    So take a 650 W quality psu, it would be enough to power your PC.

    Some options:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044


    BUT IF YOU DECIDE TO GO for 2 X 6970, then things change, since 2 of these could require arround 500 W while playing...

    So in this case go for a +- 800 W PSU.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139009

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817256059



  2. For the hardware you list the calculators recommending 850watts are the ones that are closer to correct. Here you can see actual measured total system loads with different GPU's http://www.anandtech.com/show/4239/nvidias-geforce-gtx-590-duking-it-out-for-the-single-card-king/16
    (The system specs are on page 4 in the review)
  3. rolli59 said:
    For the hardware you list the calculators recommending 850watts are the ones that are closer to correct. Here you can see actual measured total system loads with different GPU's http://www.anandtech.com/show/4239/nvidias-geforce-gtx-590-duking-it-out-for-the-single-card-king/16
    (The system specs are on page 4 in the review)


    I agree with you.

    2 Nice 850 W units.


    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139009

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817256058
  4. hey thanks a lot guys...one more quick add in, when i do over clock the CPU will i still be ok with the 800 watt or should i just go with a 900 watt to be safe(ive decided on the 6970x2 for the heat issue the 6990 is having). BTW ty for the link rolli59, who in the heck needs a 1200 watt PSU if sli 580s use 620 watts?
  5. well 850 in furmark but still....1200 watts? it seams like those PSU calculators are trying to rip you off
  6. The one on newegg over rates for sure! Even with an overclock a quality 800 -850 watt should be fine.
  7. liquidchild said:
    hey thanks a lot guys...one more quick add in, when i do over clock the CPU will i still be ok with the 800 watt or should i just go with a 900 watt to be safe(ive decided on the 6970x2 for the heat issue the 6990 is having). BTW ty for the link rolli59, who in the heck needs a 1200 watt PSU if sli 580s use 620 watts?


    With a 850 W psu you won´t have problems, so don´t worry get a quality 850 W unit.
  8. Best answer selected by liquidchild.
Ask a new question

Read More

Power Supplies Power New Build Components