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How much power to run SLI?

By pingpongmury
Nov 21, 2008
  1. im looking on new egg to update my rig and was wondering how much power i'd need to run a BFG 8800GT OC2 and a 9800GT @ 635MHz on SLI on an ASUS M3A78-T motherboard with an AMD 5400 black at 3.2GHz

    i currently have a Rosewill 550W PSU with 35a across the 12v rail... is it enough?
     
  2. tastegw

    tastegw TS Enthusiast Posts: 188

    as far as i know,


    to run sli, you need 2 of the same card's
     
  3. SNGX1275

    SNGX1275 TS Forces Special Posts: 10,715   +397

    Yeh you won't run SLI with those 2 cards. And I'd be skeptical of running any SLI setup on a Rosewill PSU.
     
  4. MetalX

    MetalX TechSpot Chancellor Posts: 1,388

    You need a good PSU to run SLI. You also need two of the same card to run SLI. However, you do not always need 600+ watts to run SLI.

    I'm running 2 8800s in SLI on a 4 year old 460 watt power supply with no problems at all, because my power supply is a GOOD BRAND.

    So first thing's first. Get a GOOD power supply. Then, if you have money left over, you can get a second video card for SLI. The power supply is the most important part. If the power supply is of low quality and you stress it too much, it might blow, and take your system with it. You wouldn't want that would you?
     
  5. pingpongmury

    pingpongmury TS Booster Topic Starter Posts: 94

    oh... i'll look into another 8800gt

    any recommendations for a "GOOD" PSU?
     
  6. SNGX1275

    SNGX1275 TS Forces Special Posts: 10,715   +397

    I always recommend anything Enermax.
     
  7. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    A Corsair 550VX would be more than enough power for you and can be found for around $75 after rebate at Newegg, although if you're into rebates, the 650TX can be had for about the same price with a rebate as well.
     
  8. pingpongmury

    pingpongmury TS Booster Topic Starter Posts: 94

    thanx rAge I'll look into it

    While I got ya herewhat do you think of the xclio A380BK or the xclio windtunnel
     
  9. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    The Antec 900 is a better choice due for its superior ventilation.
     
  10. pingpongmury

    pingpongmury TS Booster Topic Starter Posts: 94

    alright thanx
     
  11. MetalX

    MetalX TechSpot Chancellor Posts: 1,388

    Agreed. Enermax or PCP&C is the way to go in my opinion.
     
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