How much Power supply do i need for this computer

Gamer Paladin D670
Case ( PSI ArmorX Gaming Tower Case - Red )
Processor ( [=== Quad Core ===] Intel Core 2 Quad Processor Q9400 (4x 2.66GHz/6MB L2 Cache/1333FSB) )
Motherboard ( [SLI] Asus P5N-D -- Nvidia nForce 750i SLI Chipset w/7.1 Sound, Gb LAN, S-ATA Raid, USB 2.0, IEEE-1394, Dual PCI-E MB - EPU Technology )
Memory ( 4 GB [2 GB X2] DDR2-800 PC6400 Memory Module - Corsair-Value or Major Brand )
Video Card ( NVIDIA GeForce 9500GT – 1GB - SLI Mode (Dual Cards) )
Case Lighting ( Cold Cathode Neon Light - Blue )
Power Supply ( 800 Watt -- Power Supply - SLI Ready )
Processor Cooling ( INTEL Certified Liquid CPU Cooling System kit )
Video Card Brand ( Major Brand Powered by NVIDIA )
Primary Hard Drive ( 320 GB HARD DRIVE -- 16M Cache, 7200 RPM, 3.0Gb/s - Single Drive )
Data Hard Drive ( None )
2nd Optical Drive ( 16X DVD-ROM Drive - Black )
Optical Drive ( 22X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive - Black )
External Hard Drives [USB 2.0/eSATA] ( None )
Sound Card ( 3D Premium Surround Sound Onboard )
Speaker System ( iBUYPOWER 2.1 Channel Stereo Super Bass Subwoofer Speaker System )
Network Card ( Onboard LAN Network (Gb or 10/100) )
External Wireless Network Adapter ( Zonet ZEW2545 802.11n 130Mbps Wireless USB Adapter )
Floppy Drive ( None )
Monitor ( None )
Keyboard ( iBUYPOWER USB Keyboard - Black )
Mouse ( iBUYPOWER Internet Mouse - Black )
Operating System ( Microsoft Windows Vista Home Premium + [Free 60-Day !!!] Microsoft Office 2007(Word, Excel, Outlook, PowerPoint, Access ....) - 64-Bit )
Warranty ( Standard Warranty Service - Standard 3-Year Limited Warranty + Lifetime Technical Support )
Rush Service ( Rush Service Fee (not shipping fee) - No Rush Service, Estimate Ship Out in 5~10 Business Days )
Advanced Build Options ( iBUYPOWER Specialized Advanced Packaging System - Protect your investment during transportation! )
Advanced Build Options ( Professional wiring for all cables inside the system tower - Achieve exceptional airflow in your chassis )
Advanced Build Options ( Tuniq TX-2 High Performance Thermal Compound - The best interface between your CPU and the heatsinks )
Video Camera ( None )
Power Protection ( None )
Headset ( None )
Meter Display ( None )
Flash Media Reader/Writer ( 12-In-1 Internal Flash Media Card Reader/Writer - Beige )
MP3/MP4 Player ( None )
USB Flash Drive ( None )
2nd Monitor ( None )
Windows 7 Upgrade Coupon ( [*** Free Upgrade ***] Windows 7 Home Premium 64-Bit Edition )
iBUYPOWER Labs - Noise Reduction ( None )
iBUYPOWER Labs - Internal Expansion ( None )
Netbook / Notebook Bundle ( None )


Will 800W be enough power to attain good performance out of this badboy? or should i go for more. (P.S. I don't plan to OC, mostly because i have no idea how to, but i've heard it can short out your system, etc.) IDK SO LET ME KNOW.
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More about power supply computer
  1. CchRisS said:


    Will 800W be enough power to attain good performance out of this badboy? or should i go for more.

    A good quality 500 watt unit would be more than enough.
  2. even if im using dual cards?
  3. Even using those low end dual cards.
    By the way, you only need to post your question in one section of the forum.
  4. yeah sorry lol. And yeah i realize i kinda picked 2 crappy cards, Do u think using ONE 9800Gt, or something even better you could recommend, would outperform those 2 9500gts?
  5. On Nvidia's website they suggest a minimum of 350W with one card. %00W will probably run in SLi but sod that your PSU will be sweating it nuts off. Go for a 750 - 800W unit and give your system a bit of overhead.

    See link:-

    http://www.nvidia.com/object/product_geforce_9500gt_us.html
  6. They reccomend 350 watts for a single card ( psst, a 9500 GT uses about 35 watts of power ) and you believe that a 750-800 watt unit is needed to give the system some overhead :pfff:
  7. 800 watts for octosli 9500gt?
  8. In response to Dell User1 500W is still not enough to last. By the time you take into account USB devices, extra HD's etc. Perhaps I was a bit ambitious with the 750 but I always go for more. Also PSU prices in the 600W to 800W range hardly differ, you may as well have more than you need.
  9. Q9650 @ 4.05
    2 x 2 Dominators
    65nm GTX260 C216 @700/1100 ( Draws more than 2 times the power of the OP's twin 9500's )
    WD 640 Black
    DVDRW
    Floppy
    Card reader
    Sound card
    Logitech G15 , MX518 and Wingman 3D Pro ( USB devices ? )
    3 x Antec Tri Cool 120mm LED fans
    2 x standard 120mm fans
    3 x Antec Tri cool 80mm fans
    1 x 70 mm chipset fan
    1 x 50 mm chipset fan
    Lighted Fan Controller
    4 x CCL tubes
    All of the above manages to put about a 370 watt load the psu, again , 500 watts would be enough for the OP's configuration.
    Doesn't really matter , he somehow thought he would need more than the 800 watt unit in the specs he gave.
  10. @ CchRiSS: Use this:

    http://extreme.outervision.com/psucalculatorlite.jsp

    There is also others, check through Google for them.
    Also bear in mind PSU quality varies and cheap units do not always live up to their claimed specifications.
    The PSU is the heart of any stable, reliable system so try not to cut corners when making a decision: Antec, OCZ, Corsair, Pc Power and Cooling, Seasonic and the later FSP units are all highly recommended.
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