deciding between two psu's please help

Thanks in advance for helping out a noob :)

http://www.buy.com/prod/corsair-620w-sli-certified-modular-atx-power-supply/q/loc/101/203270718.html

http://www.buy.com/prod/corsair-tx-750w-atx-12v-power-supply/q/loc/101/206178325.html


both of these are 119 after rebates. Am I better off with the 750? I would rather have too much.
I think one is a TX the other a HX, any difference?
It will be put in, but not built or ordered yet<except the case) so suggestions welcome

coolermaster stacker 830
4 gigs ram
q6600 overclocked
8800gt or hd3850
asus maximus board
22' gateway monitor
11 answers Last reply
More about deciding help
  1. the 750TX has a 140mm fan, and doesnt have modular cables. the 750 is manufactured by CWT, while the 620hx is manufactured by seasonic.

    I havnt seen any tests regarding power factor, ripple, noise, temperatures or anything really.

    the 620hx is overkill for your machine... unless your trying to run a bunch of HDDs. even the smaller 450vx (also made by seasonic) would be more than enough to run that.
  2. I tend to go for quality so I'll get the 620HX; which as skittle has pointed out, is made by Seasonic.

    It has more than enough power for future upgrades.
  3. It depends on whether you will go for SLI/XFire or not...
    TX 750W features single rail +12V, while 620HX has 3 separate rails.
    Generally TX 750W will have higher output, while 620HX should be a
    little bit more stable...at least in theory...
    If 18A is enough for your display card(s), then 620HX will be more
    suitable if you are using SLI/XFire system, otherwise TX 750W has to be
    your choice...
  4. Thats not the way it works... the 620hx can output a maximum of 50a on the 12v rail.
  5. Skittle is right! Get the 620HX if you can afford. If you are in a tigh buget, get the 520HX.

    skittle said:
    Thats not the way it works... the 620hx can output a maximum of 50a on the 12v rail.
  6. thankyou people. I will go with the 620hx. sounds like the better idea. but I do have one other question. I saw another psu thats a tier1

    http://www.newegg.com/product/product.asp?item=N82E16817703005

    pcpower and cooling silencer 610 for 118 plus 9 shipping. Im told this is the best brand but can be loud at times. anyone have any experience with it?
    btw this is going into the collermaster stacker830 case I just got from tiger. If anyone has experience with this case and or psu I would appreciate it.
    thx diehard
  7. mweidler said:

    pcpower and cooling silencer 610 for 118 plus 9 shipping. Im told this is the best brand but can be loud at times. anyone have any experience with it?


    It's probably a little loud because uses a 80mm fan instead of a 120mm fan. Basically the smaller the fan, the faster it needs to spin to move the same amount of air as a larger fan.

    BTW, Seasonic makes the Silencer 610.
  8. The 620 corsair is modular, I hear that you are better off with direct connections. Less chance of a break or a problem. So the 620 is out.
    I will look at the 520.
    does anyone else know of a psu in that price range that isnt modular but is made by seasonic oranother top brand. i want quality and stability.
    Im afraid the PC POWER AND COOLING psu will sound like an airport in a small room. anyone have experience with it?
    my pricepoint is 100-150

    you guys have given me alot of great info...thanks alot
  9. The Corsair 520HX is modular PSU too.

    If you do not want a modular PSU then get the Seasonic S12 Energy Plus which is rated at up to 88% energy efficient. It should be very quiet like all S12 series PSUs. I just received mine, but did not install it yet.

    SeaSonic S12 Energy Plus SS-550HT ATX12V / EPS12V 550W Power Supply - $120
  10. Here's a good deal on the Corsair VX550 non modular. It's also made by Cwt, but is well rated.

    http://www.buy.com/prod/Corsair-VX-550W-Power-Supply/q/loc/101/205852646.html

    Here's a link where it is compared to the 520;

    http://enthusiast.hardocp.com/article.html?art=MTQyMCwsLGhlbnRodXNpYXN0
  11. thanks for all the great info guys. I ended up going with the pcpower and cooling 750. Overkill I know, but I kept reading great things about there products and this unit in particular. its tier1 so I should be ok. pricey but worth it I think. the seasonic would have been great too, but I beleive the one I ordered is made by seasonic but not sure.
    thanks again, your all a bug help
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