Can i run pc power supplies in tandem

I have a new Asus PC. It has 400 watts of power. Can I run another 400 watt with it or do I have to replace it?
How do I know what will fit in my machine?
10 answers Last reply
More about power supplies tandem
  1. If done correctly, shouldn't be a problem , but a single higher wattage unit is a better option.
  2. I need a video card and that requires more power. I have a very limited budget.
  3. ElwoodBlues said:
    I have a new Asus PC. It has 400 watts of power. Can I run another 400 watt with it or do I have to replace it?
    How do I know what will fit in my machine?


    Its a risky endeavour, but if you hook up the cable properly, shouldn't be a problem. However, like my fellow replier said, I single higher wattage PSU would be better, wouldn't cost as much in money/electric bill terms.
  4. ElwoodBlues said:
    I need a video card and that requires more power. I have a very limited budget.

    What video card were you thinking about ?
  5. I think I will skip the tandom power supply and find one higher power unit.
    I am looking at the Radeon HD4770 because of some reviews I have read about it. I would love to get a higher power card but I don't have extra cash to spend on it.
  6. perhaps this article will help

    Here's the "winners" from THG's latest (December) GFX Roundup
    Best Graphics Cards For The Money: December '09

    $50 - HD 4650
    $65 - HD 4670 / 9600 GSO
    $85 - 9600 GT
    $95 - 9600 GT / HD 4830
    $110 - GTS 250 512 MB
    $120 - GTS 250 1 GB
    $155 - HD 5770 / GTX 260
    $200 - HD 4890
    $240 - 2 x GTS 250
    $310 - No winner (HD 5850 Honorable Mention)
    $330 - 2 x GTX 260 / 2 x HD 5770
    $400 - 2 x HD 4890
    $410 - No winner (HD 5870 Honorable Mention)
    $465 - No winner (GTX 295 Honorable Mention)
    $625 - No winner (HD 5970 Honorable Mention)http://www.tomshardware.com/reviews/geforce-310-5970,2491.html
  7. Are the hd 4650 and 4670 able to run semi modern games? ie.. Batman Arkham Asylum, combat flight simulators etc
  8. Batman, in all it's glory, requires a PhysX card which is nVidia's territory. Read about the requirements here:

    http://www.tomshardware.com/reviews/batman-arkham-asylum,2465-11.html

    And that's where things get expensive. A single GeForce 9600 GT isn't going to cut it if you want a 30 FPS minimum frame rate. You'll need a GeForce GTS 250 to play at 1680x1050 with normal PhysX enabled, and a GeForce GTX 260 can just handle 1920x1200. With PhysX set to High, even the GeForce GTX 260 can't handle a minimum frame rate of 30 FPS at 1280x1024, so you should consider a dedicated PhysX card if you want high resolution play (and you have a free PCI Express slot available on your motherboard).

    The good news here is that a GeForce GT 220 can be had for as little as $65 online, and as a dedicated PhysX card, it will guarantee that the High PhysX setting won't bottleneck performance. Even at 1920x1200, the GT 220 produced a minimum frame rate of 36 FPS as a dedicated PhysX card. Using more expensive solutions as dedicated PhysX processors didn't produce appreciably higher frame rates, so the GeForce GT 220 is a real PhysX champion for the price.


    Decide whether PhysX is worth it here:

    http://www.firingsquad.com/hardware/batman_arkham_asylum_physx_performance/page2.asp

    So, it looks like a 260 + a 220 or about $250 at 1920 x 1200 for Batman.

    If you want ATI as your main GFX, the 220 could still work as dedicated PhysX card, but you'd need to dp a drive rhack and have windows 7.

    http://www.tomshardware.com/news/nvidia-ATI-physx-patch-gpu,8786.html
  9. Ouch.
    What happens if I run a lesser nvidia card and a 220?
    And am I donig this only for the Batman game? Or will it benefit all future games?
    Obviously I will have to upgrade power supply.

    Do I need to disable the graphics chip when I install a card?
  10. lol u have to disable the integrated graphics but it should do that by itself...
Ask a new question

Read More

Power Supplies Asus Power Components Product