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Thread: GA EX58-UD5. Windows will not recognize 3rd GPU in Tri SLI




  1. #11
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    Default Re: GA EX58-UD5. Windows will not recognize 3rd GPU in Tri SLI

    As that 1KW unit has plenty of juice to power three cards it's perfectly fine to use a couple of molex to PCIe adapters. They're available in 6pin and 8pin and are perfectly safe. If there are no molex, SATA to PCIE are available in some specialist outlets.

    For me it would be preferable to spending money on a seperate bay PSU. most of those things are actually pretty noisy due to having 2-4 40mm fans inside,maybe more. They're usually not too eficient either, at least compared to a regular PSU. They'll do in a pinch though.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  2. #12
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    Default Re: GA EX58-UD5. Windows will not recognize 3rd GPU in Tri SLI

    Yeah. By the numbers the 1KW can muscle it (barely, in my opinion). However, with my setup it simply does not have the available plugs. With 4 HDDs, Blue-Ray, 16-1 card reader and everything else nearly all plugs are used.

    As it is the Juice Box is silent. At first I was freaked out that it may not have been running. So far it is working pefectly and, for me, it is the preferred solution. I actually bought a second one in case I wanted to use it in the future.

  3. #13
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    Default Re: GA EX58-UD5. Windows will not recognize 3rd GPU in Tri SLI

    Could you link the product you're using?

    I do sometimes work on Dell and Packard Bell machines that are a pig for spare leads etc. Most of the time, good old Ohms Law, a calculator and some 1x molex to 2x SATA power etc can help free up some cabling. If there is a silent 5.25in unit that's up to the job and generates little heat I may consider it as an option (as long as the main PSU in said system is a non standard design ofc).
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  4. #14
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    Default Re: GA EX58-UD5. Windows will not recognize 3rd GPU in Tri SLI

    Sure. Here is a link to the NewEgg product.

    Newegg.com - ePOWER EP-450CD 450W ATX12V / EPS12V Modular Power Supply - Power Supplies

    I found them on other online retailer sites for as much as $109. Dell has them on their site for $89.
    Last edited by tgruen; 11-23-2009 at 11:07 AM.

  5. #15
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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