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Suspicious my PSU isn't running at full capacity

http://www.microcenter.com/single_product_results.phtml?product_id=0323928

Found this locally that I could pick up today. I'm currently running a corsair TX650w with a phenomII 720 @3.1, one 500GBWD Vista 64, GTX460 (soon to be sli)

My games are horrible, things that should be smooth are stuttery and may actually be reporting 40-60FPS but still unplayable, crysis is running a lousy 22-25FPS when it should be in the 25-40FPS. I'm told it's not software like I thought so I'm guessing my PSU may not be delivering, though it should be ample for this system.

I needed modular and a little more power than I have if I'm going to get a new one.

If you have any other ideas for this problem i am listening
8 answers Last reply Best Answer
More about suspicious running full capacity
  1. Hello thecountrygoth;
    Highly unlikely your PSU is the causing the problems you're having.
    Replacing your Corsair 650TX with a Thermaltake TR2 RX 750 is a bad, bad idea.
    650TX is a solid, powerful PSU. RX 750 is a below average 600W PSU with a 750W label.
    Thermaltake TR2 RX 750 review @ Hardware Secrets: http://www.hardwaresecrets.com/article/Thermaltake-TR2-RX-750-W-Power-Supply-Review/902/1
  2. So my I'm right in my 650 being able to power the 460 in sli, by my calculations and giving a little extra wattage it comes just under 80% of the rated 650. So it shouldn't get pushed too hard running my system right?

    Just played crysis, it's extremely playable for 22-25FPS that it's giving, turned the AA from x2 to X8 and other than the jaggies being gone, no performance impact, isn't this a little odd when the system is running such low FPS
  3. Best answer
    Right now you're probably using less than 50% of that 650TX's available power, probably closer to 40%. Adding a 2nd GTX 460 is well within the 650TX's capability.
    Overclocking both GTX 460s, you might see something above 500watts being drawn from the AC power socket, but that's just over 400watts DC. And PSUs are rated in DC power, not AC.
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  5. I see Delluser got my Xmas card with the picture of me! :D
  6. Best answer selected by thecountrygoth.
  7. ct1615 said:
    I see Delluser got my Xmas card with the picture of me! :D

    I thought your's was the sloth ;)
  8. WR2 said:
    Right now you're probably using less than 50% of that 650TX's available power, probably closer to 40%. Adding a 2nd GTX 460 is well within the 650TX's capability.
    Overclocking both GTX 460s, you might see something above 500watts being drawn from the AC power socket, but that's just over 400watts DC. And PSUs are rated in DC power, not AC.


    Thanks
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