Looking for a good psu.

Hi im a first time builder and all that matters too me is stabilty. I am looking for a psu that can power and oc this sytem:


C2D e4300@3-3.3ghz
2x80mm case fan, 1x120mm case fan.
gigabyte-s3 mobo
2gbs of corsair xms memory 4 modules(ddr2)
1x160gb hd
1xdvd rom drive
8300gs (dx10 card)
and possibly another drive...

P.s my budget is $70 max
thanks ;D
11 answers Last reply
More about looking good
  1. Unfortunatly most of those are out of my price range besides the few 28amp psus.

    Quote:
    Now chances are with the power needs of the 8300 you can get away with abour 32A on the combined +12v rails


    When you say "combined +12v rails do you mean? Im sorry im not very educated in the PSU department. ;D

    Thanks for your help mpilchfamily I really appreciate it. ;)
  2. What do you think of these two power supplies?

    HIPER HPU-4K530-MS ATX12V v2.2 530W [37Amps??]
    www.newegg.com/Product/Product.asp?Item=N82E16817128006

    Rosewill RP550-2 ATX 2.01 550W [36Amps]
    www.newegg.com/Product/Product.asp?Item=N82E16817182017

    Both are within my price range, have good reviews, and will give me the proper amperage.

    Thanks for the help. =D
  3. I was thinking the power demands were a bit lower...

    eXtreme PSU calc"]System Type: Single Processor
    Motherboard: Regular - Desktop
    CPU: Intel Core 2 Extreme X6800 2930 MHz Conroe
    CPU Utilization (TDP): 100% TDP


    SATA HDD: 2 HDDs

    DVD-RW/DVD+RW Drive: 1 Drive

    Fans
    Regular: 1 Fan 80mm; 1 Fan 120mm;

    Keyboard and mouse: Yes

    PSU Utilization: 100 %

    Total: 171 Watts

    Went w/ the X6800 since I wasn't sure how much you want to oc. Combined with this:

    The Truth About Graphics Power Requirements V2"]nVidia Single Cards
    ---------------------------------

    8800 GTX ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 155W ^
    8800 GTS ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 115W ^

    Together that is 286w or ~24A in the absolute-worst-case-nearly-impossible-to-obtain +12v demand :wink:

    Not sure you calc'd the hiper's power demand correctly - check out the hiper's label it shows 336w on both +12's so that's 28A max output. I usually put in an 80% safety / upgrade margin so thats 22~23A so that should work... However, it is over $88 shipped! ouch!

    Check out the Antec TP3-550's label it has 42A (80% is 34A), and it's less than $90 shipped from securemart so that is a bigger bang-per-buck for an excellent quality psu. But it looks kind of bland, not as cool looking as the hiper 8)

    Recently I have used this ePOWER ZU-550W (less than $64 shipped) when budget was the primary concern, it's rated for 38A but not sure I would push it that far. Would also work well for your requirements,


  4. The Truth About Graphics Power Requirements V2"]nVidia Single Cards
    ---------------------------------

    8800 GTX ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 155W ^
    8800 GTS ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 115W ^


    The author of that post provided a link to an Anandtech article where he supposedly obtained those numbers from. While the article does provide power consumption of the entire system, it does not specify exactly how much power the GPU uses.
  5. Ive never heard of ePower before so I am hesistant to buy it. What would you recommend mpfilchfamily? Thanks ;D
  6. Yea apparently he just took the 40w difference under the prey benchmark. hwupgrade.com did a test and found a 50w difference using the sciencemark test.

    Even if an exact wattage was found, YMMV since not all cards are created equal... check out anand's GeForce 8800 Roundup the wattage variance between their GTS floats between 33w and 57w, so maybe anand's 40w isn't so bad being smack in the middle :P
  7. The new 8800GTS requires at least 26amps so that means its lesser form (8300gs) which is do out in march should require less amps. Heres a couple psu's I found on mpfilchfamily's list:

    Enermax FMA 2 460W 32A $80
    http://www.newegg.com/Product/Product.asp?Item=N82E16817194011

    and

    FSP AX 450 450W 29A $54
    http://www.newegg.com/Product/Product.asp?Item=N82E16817104954

    Theres a big price gap between the two for the difference in 10ws and 3a's what do you think?
  8. Quote:
    Hi im a first time builder and all that matters too me is stabilty. I am looking for a psu that can power and oc this sytem:


    C2D e4300@3-3.3ghz
    2x80mm case fan, 1x120mm case fan.
    gigabyte-s3 mobo
    2gbs of corsair xms memory 4 modules(ddr2)
    1x160gb hd
    1xdvd rom drive
    8300gs (dx10 card)
    and possibly another drive...

    P.s my budget is $70 max
    thanks ;D


    If all that matters to you is stability why are you OC'ing your CPU?

    Just curious.
  9. Because I want more bang for my money? A large majority of people that OC at extreme levels often find stability, my oc is nothing huge therefore stabilty shouldnt be an issue. I do not plan however to OC right off the bat, rather when its necessary (further down the road). Does that answer your question? ;D
  10. Quote:
    Yea apparently he just took the 40w difference under the prey benchmark. hwupgrade.com did a test and found a 50w difference using the sciencemark test.

    Even if an exact wattage was found, YMMV since not all cards are created equal... check out anand's GeForce 8800 Roundup the wattage variance between their GTS floats between 33w and 57w, so maybe anand's 40w isn't so bad being smack in the middle :P


    Interesting, I didn't expect the difference to be as much as 50w. More like 30w - 40w.

    I would say that in the Anandtech article the variance between the cards is really only 10w. Total power consumption with the Sparkle Calibre stands out at 301w because of the peltier cooling solution which uses more power than the typical fan.
  11. Here is the PSU that I have and it works great but with 700W I am not going to be really stressing it that much any time soon.

    http://www.newegg.com/Product/Product.asp?Item=N82E16817104015

    if you are looking for something a little cheaper then you can go with a lower wattage PSU like a 550W or a 500W and still be good.

    here is another PSU that I would recommend

    http://www.newegg.com/Product/Product.asp?Item=N82E16817189009

    and again both companies make some that are lower wattage if you want to spend less money. the Xclio 450W is a really nice PSU but if you have highend GPU and CPU then you would probably want the 500 or 600W versions. OCZ also makes some good PSUs at good prices like this one.

    http://www.newegg.com/Product/Product.asp?Item=N82E16817341002

    the key is though make sure that you have enough power for all of your components and that on the multi 12V rail PSUs you have enough current to supply video card on one of them (if you read reviews you will find that some people seemed to have problems with video cards drawing too much current from the rail that it is connected to)
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