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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
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    Exclamation Must read: tricky situations with PSU`s and power sockets terminals

    Hey guys,

    So I got my Dell 330W the other day, didnt have much time to game so last night after quite some time I fired up the rig. Said to myself "hey lets Firestrike it for a bit " I did that and just 10 secs after the test started, GTX980Ti went offline !! so weird. I though maybe it was a sudden power outage or something so I started it again, same thing happened and GPU started counting starts lol. Something caught my eye, it was actually the Dell 330W PSU which was going down and powering off each time, in fact it was going to safe mode.

    So it got me thinking: It was virtually impossible that PSU was defective,I was sure of that. GTX also was healthy and fine. So only one other possible scenario: PSU is not getting enough juice.

    Look at the Power socket Terminal I was using:

    Click image for larger version. 

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    This is a 3 socket power terminal Into which I plug my 23" BenQ Monitor, 180W G20 PSU and 330W GPU PSU. so basically I`m asking about 600W max from that Power terminal given that the parts are overclocked and stuff.

    On the other hand, the Dell 330w psu had a weird 3 dent male sockets for which I had no proper female sockets to match.

    Click image for larger version. 

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    So I went to a store and bought that conversion for it. didnt like it from the start, cheap stuff.

    So all above said, I though maybe I should give this 330W PSU a better power flow. So I used the Power socket Terminal which I use for my Samsung Home Theater system which includes a 4k 78" TV, Samsung Seramic sorround system and a big Subwoofer. I though this is what I want to be sure.

    Click image for larger version. 

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    With this, system booted issue free and I ran 3 firestrike tests back to back .Each time I got my usual score of 15090. Conclusion: it was a weak power socket terminal not being able to feed the 330W PSU the power it needed.

    Take a look at the wire comparison between the former and latter power sockets terminals:

    Click image for larger version. 

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    All tested and verified by me and I though maybe you should know this too.

    Happy ROG`ing

  2. #2
    New ROGer Array
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    I need to buy something like that. I live in a old nyc apartment were the sockets are not that great. Might as well buy a UPS too.

    Are they sold separately ?

  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
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    MonitorBenQ XL2430T Gaming LED Monitor
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    By "I need to buy something like that" you mean a Power Sockets Terminal? yeah any electric store should have that kinda thing.

    UPS ? hmm They are not that cheap and since you arent running a server I suggest you dont waste money on that.

    Whats your rig?

  4. #4
    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
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    Reference GTX980Ti are rated for 250W and NVidia recommends a 600W+ PSU. A 330W PSU might barely run the card (along with the rest of the system) but I seriously doubt it could sustain peak power requirements. I wouldn't be surprised if your PSU keeps shutting down when a failsafe overpower protection circuit kicks in, it takes about 10-15 seconds of overheat before a slow-blow breaker kicks in.

    I think a proper PSU would cost you less than a UPS and an assortment of weird power adapters. I suspect Dell used a nonstandard power terminal precisely because they didn't want consumers to easily plug things into standard wall receptacles.

    You probably don't really *need* a UPS. But it breaks my heart every time I hear people running expensive hardware without one. You aren't running a server but that's no justification for gambling that dirty electrical power won't wreck your system, wear down your expensive GPU card, or corrupt your SSD flash.

  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
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    Hey Korth, probably you know better than me that 600W recommended PSU is the minimum for "the whole rig" The 330W PSU that I and many other people are using is a separate PSU plugged into the GPU alone so its more than enough for GTX980Ti.

  6. #6
    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
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    Holly sh. This 330w PSU I got from amazon seems to have issues. I`m gonna open a new thread see if anyone knows anything about.

  7. #7
    ROG Guru: White Belt Array GoHack's Avatar
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    Quote Originally Posted by a100 View Post
    Holly sh. This 330w PSU I got from amazon seems to have issues. I`m gonna open a new thread see if anyone knows anything about.
    Don't overclock your GTX 980Ti, but rather keep it at the standard Nvidia GTX 980Ti Reference card settings, and you should be fine w/the Dell 330W power supply. Overclocking requires more power. Outside of benchmarking, you're not gaining anything when it comes to gaming w/overclocking. The GTX 980Ti is already a fast card. I would assume you are using the 180W as the other power supply, for the rest of the system?
    Last edited by GoHack; 12-30-2015 at 05:26 AM.
    - Asus ROG G20AJ, Intel i5-4460 CPU, Crucial Ballistix 16GB DDR3L, 2x Corsair 128GB SSD's (RAID 0), Nvidia Geforce GTX 670, 180W and 230W Power Supply Bricks, Acer GN246HL 24" Monitor, Windows 10 (x64)

    - Alienware Aurora R4, Intel i7-4820K, 20GB DDR3, 2 TB HD, Nvidia GeForce GTX 760, Windows 10 (x64)

  8. #8
    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
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    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
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    Two PSUs serving the same motherboard/daughterboards ... it can be done, people do it all the time. But if the PSUs are mismatched - or their loads are mismatched - there's a sort of horseshoe transformer effect which adds line noise (phase impedance) that can produce ripples or harmonics on the weaker PSU. Probably works flawlessly for 99% of people 99% of the time, but I'm neurotic about avoiding hardware issues, lol.

  9. #9
    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
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    Tnx for sharing guys.

    Well what bugs me is that my Asus 230w PSU is doing absolutely fine with my GTX980Ti being overclocked. Works like a champ.

    Question is, Dell 330w is much more powerful than Asus 230W, how does it go down while Asus one remain up and just fine without even being heated?!!!!!!

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