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Thread: Ocz 700w + (2) evga gtx 460 sli

  1. #1
    Join Date
    Feb 2004

    Default Ocz 700w + (2) evga gtx 460 sli

    Hey guys. Need some help. My setup is very minimal, not many peripherals besides the basics.

    OCZ Technology Technology 700W ModXStream PSU
    ASUS P6X58D-E
    Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Quad-Core
    EVGA 01G-P3-1373-AR GeForce GTX 460 (Fermi) Superclocked EE 1GB 256-bit GDDR5
    CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)

    I've already purchased a 2nd EVGA GTX460, and it's on its way. Then I started thinking about it, and started looking at the PSU itsself, and realized it only has 2 PCI-E connectors, and one 460 already uses that up. Here's the specs on the OCZ PSU:

    And here's the specs on the 460:

    EVGA | Products

    So basically, am I missing something? Was I not supposed to hook up both of the 12v PCI-E connectors to the GPU? The EVGA 460 comes with two molex to PCI-E adapters, can I just plug that into the other PSU connectors? Or was I totally wrong, does this PSU NOT work with 2 460s? The PSU IS listed as an SLI-capable unit. While digging around, I found this link for Tom's Hardware where they started discussing it:

    [Solved] GTX 460 1 Gb SLI on 700w?? - Power-Supplies-PC-Cases-Case-Mods - CPU-Components

    Other than that, I can't find many other people who use a OCZ 700W with dual GTX460s. Any help would be GREATLY appreciated, as I need to return this item ASAP if it's a no-go.

  2. #2
    Join Date
    Aug 2009
    Birmingham,Great Britain

    Default Re: Ocz 700w + (2) evga gtx 460 sli

    Are you in the UK? Whats the minimum required psu for one 460?
    Gigabyte z77x UP4-TH F11c Modded Bios
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    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
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    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
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    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
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    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
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  3. #3
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Ocz 700w + (2) evga gtx 460 sli

    Your current OCZ power supply is borderline for an SLI setup, especially if you are overclocking your cpu and gpu. HardOCP is one of the best psu review sites and their psu tests are very demanding. A general psu guideline is that a psu should not be run for extended periods where the power output is higher than 80% of its rated capacity.

    Better modern psu designs are rated with 12 volt output at 95% (or more) of the total power output.
    My power supplies have the following ratings:
    • Antec TP-750 - 80 Plus+ Bronze rating - 744 watts available on the 12 volt rails
    • Seasonic X650 - 80 Plus+ Gold rating - 648 watts available on the 12 volt rails
    Both of these power supplies were tested stable with total power output equal to 122% of their respective ratings (source: HardwareSecrets).

    Check out MSI N460GTX Hawk (1GB) Overclocking Results, post #85 to see what the total power draw is from the wall outlet when running a single 460 video card at stock and highly overclocked gpu settings. With an overclocked SLI setup, maximum psu power demands would be up to 200 - 250 watts higher, where the AC power draw would be up to ~300 watts higher.

    If your current power supply fails, some of your computer hardware might be damaged.
    The best psu review websites are: JonnyGuru, HardwareSecrets, HardOCP, and PCPER.
    You should be able to buy a top tier 650 - 750 watt psu for about $90 - $125 (USD).
    There are many name brand power supplies that are only average.
    Don't skimp on your psu, it's the foundation of your computer system.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S

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