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  1. #1
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
    CaseG20AJ
    Keyboard Asus
    Mouse Asus
    OS Win 8.1 Core Single Language
    Accessory #1 Logitech G27 Racing Wheel

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    Aug 2015
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    GTX980Ti: The Ultimate PSU Solution

    Yeah well been talking on this matter for a long time, not just few members, all of us. First me and few others confirmed that Asus stoke 230W PSU can handle GTX980Ti then we realized not much and during peak usage GPU shuts down. Then Dell 330W PSU was brought up as a solution which proved to be not as much it glows on paper with 330W power, me and few others tested it, my own experience showed although it has 330W power, it doesnt work as good as Asus 230W psu.

    Last week something hit my mind: Can we use an internal PC PSU for the GTX980Ti? on theory it`s very much possible as it`s simply 1x 6pin + 1x 8ping power PCI-E power sockets but there were two other things to consider:

    -Those internal PC PSU`s have a 20/24 pin sockets which attaches to the motherboard and power off/on commands are taken from the motherboard using that socket. So in short, we have to make the PSU work Directly on its own to power off and on using the power button behind it.

    -How to pass the PCI-E power cord from the G20 case so that Graphics Card Bracket sits properly on its place?

    ================================================== =======================

    I first started by ordering a Green 600A HP Internal PSU which has by standard 600W power and 45 Ampers. One of the best things about this product was that the wires were so soft and could be bent easily without being damaged. So I simply plugged the 6+8 pins sockets and placed the out going power cord at the edge of the case which has a small hole.

    Click image for larger version. 

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    As you can see it really nicely fits there. So now only remained one more thing which was making the PSU work Direct.
    On that 20/24 pin socket there are 2 holes which behind one of them is a Green wire and the neighboring hole has a black wire. You need to use a U-bent Insulated small wire connecting these two so that you PSU work as soon as you press the power button behind it.


    Click image for larger version. 

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    So doing that, you are set to go.

    How it works?
    Starting up: first power on the PSU and then power on the case.
    Shutting down: shut down the case and 10 seconds after power off the PSU.

    Results have been amazing in the past 4 days. I can run Firestrike test in a loop for as long as I want without facing any issues. I also added 10 extra percents to the power target which is now 110%, 250+ Core clock Offset and also 300+ Memory clock offset working very nice. Here are my firestrike results: http://www.3dmark.com/3dm/10083951

    I also should thank @spartan_hoplite for sharing his ideas.

    Hope you like this.
    Last edited by a100; 01-05-2016 at 03:14 AM.

  2. #2
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
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    Great idea if you have some spare PSUs kicking around. Or you need to test a PSU, GPU, motherboard in isolation. I've seen a lot of people hook a second PSU into their rigs to run cooling pumps, but never directly to a GPU.

    I think a single mighty PSU would be somewhat more stable than a pair of lesser PSUs, though, probably better to not divide all the safeties across two discrete PSUs (unless they have linked logic controls) because they'd effectively combine all their tolerances in the worst way. At least it wouldn't constantly nuisance-trip your 15A breakers at peak loads, lol.

  3. #3
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
    CaseG20AJ
    Keyboard Asus
    Mouse Asus
    OS Win 8.1 Core Single Language
    Accessory #1 Logitech G27 Racing Wheel

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    Aug 2015
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    Yeah man, It`s rock`N roll. Its just what GTX980Ti on G20 needs. Now my GPU has enough Wattage and Amperage to handle any intense graphical situation.

  4. #4
    ROG Guru: Yellow Belt Array Ravenholme PC Specs
    Ravenholme PC Specs
    Laptop (Model)Asus G20AJ-US009S
    MotherboardAsus H97
    ProcessorIntel Core i7 4790
    Memory (part number)16GB - Kingston DDR3 1600MHz CL11 1.35v SODIMM - KVR16LS11/8
    Graphics Card #1Nvidia GeForce GTX 1080 - Founders Edition (ASUS)
    MonitorBenQ BL3201PH (4K/UHD IPS LED)
    Storage #1Samsung 850 Evo 500GB SSD
    Storage #2Seagate SSHD 1TB
    CaseAsus G20AJ
    Power SupplyAsus 180W PSU AC Adapter + Dell Y90RR 330W PSU AC Adapter
    Mouse Razer Ouroboros
    Headset Turtlebeach
    Headset/Speakers (The BenQ)
    OS Windows 10
    Accessory #1 ASUS (SBC-06D2X-U) Slim External 6x Blu-ray Combo Drive
    Accessory #2 Asus GPU Tweak II - OC: 2050 Mhz, 90°C max, 120% Power, vsync off
    Accessory #3 http://rog.asus.com/realbench/show_comment.php?id=8796
    Ravenholme's Avatar
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    hah my system hasn't shut down with the Dell 330W PSU for a long time then again i don't game as heavily as you guys. I have switched to playing ESO on the system with the GTX 980Ti and runs fine. I don't max everything but i could and see what happens.

  5. #5
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
    CaseG20AJ
    Keyboard Asus
    Mouse Asus
    OS Win 8.1 Core Single Language
    Accessory #1 Logitech G27 Racing Wheel

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    Yeah bud, I am crazy about maxing out games and the trick above paying off like crazy

    Firestrike with my rig using a i7 4790 (non K version) results in 15500 for me which is brilliant. I can overclock the GTX980Ti easily.

  6. #6
    ROG Guru: Yellow Belt Array Welsh Whoopee's Avatar
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    you could have just brought the power brick for the price of a PSU

  7. #7
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
    CaseG20AJ
    Keyboard Asus
    Mouse Asus
    OS Win 8.1 Core Single Language
    Accessory #1 Logitech G27 Racing Wheel

    Join Date
    Aug 2015
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    Which power brick? something like that stupid dell 330w?

    I tried many power bricks, none of them would give the satisfaction that this one did.

  8. #8
    ROG Guru: Brown Belt Array Vlada011 PC Specs
    Vlada011 PC Specs
    MotherboardRampage V E10 (BIOS 1903)
    ProcessorIntel®i7-5820K (4.5GHz 1.325V)
    Memory (part number)CMD16GX4M4A2666C15
    Graphics Card #1ASUS GTX1080Ti Poseidon
    Sound CardSound Blaster ZxR
    MonitorSamsung P2450H
    Storage #1Samsung 970 EVO PLUS 1TB
    Storage #2Samsung 850 EVO 1TB/WD Black 2TB
    CPU CoolerEK RGB Monoblock RVE10
    CaseLian Li PC-O11 WXC
    Power SupplyEVGA 1200 P2
    Keyboard Deck 87 Francium PRO - MX Brown DS PBT
    Mouse Logitech G900
    Mouse Pad Steeseries QCK
    Headset/Speakers CREATIVE T5900 5.1
    OS Windows 10 Pro x64 v1903
    Accessory #1 iPhone SE Space Grey
    Accessory #2 EK XRES D5 Revo 100 Glass PWM + CoolstreamPE 360
    Accessory #3 Noctua NF-A12x25 PWM x3 (radiator)
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    What you need AC/DC power supply with 40A and 600W because 980Ti, very hard to find.
    Even 1U PSU is hard to find in 500-600W something good. And people will ask more and more such devices.
    Last edited by Vlada011; 01-10-2016 at 04:31 PM.


  9. #9
    ROG Guru: Yellow Belt Array Welsh Whoopee's Avatar
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    yeah that gtx 980ti takes 250watts, and I bet even the G20CB-B10 model will only come with a 230watts. its a good idea but a pain to keep switching off that extra PSU lol

  10. #10
    ROG Member Array
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    Can you link where you bought this? I'm still having underpowering issues with my Power Brick 330W Dell one.

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