Good 550W PSU + 1080 Ti?

Discussion in 'nVidia Flavor' started by sk3tch, Oct 5, 2018.

  1. sk3tch

    sk3tch [H]ard|Gawd

    Messages:
    1,383
    Joined:
    Sep 5, 2008
    Hey guys,

    My 2080 Ti FE is due to arrive today and I am faced with the reality of potentially losing my dear MSI GTX 1080 Ti Lightning Z...I have a secondary box with a 5820K (OC'd to 4.2GHz, AIO water cooled, 64GB RAM, 3 SSDs - it used to be a VMware ESX box) and an EVGA SuperNOVA G2 550W PSU (https://www.newegg.com/Product/Product.aspx?Item=N82E16817438053). MSI says 750W minimum but c'mon (https://www.msi.com/Graphics-card/GeForce-GTX-1080-Ti-LIGHTNING-Z/Specification).

    It has had a 1070 Ti and currently has a 1080 in it with no issues. Am I pushing it a bit too far with a 1080 Ti? I have bigger PSUs in the garage but I am damn lazy.

    Thinking of keeping the 1080 Ti versus selling...and instead selling the 1080.

    Thanks!

    EDIT: turns out it's not out of the question: http://www.tomshardware.com/answers/id-3503422/550w-psu-gtx1080ti.html and
     
    Last edited: Oct 5, 2018
  2. dvsman

    dvsman [H]ard|Gawd

    Messages:
    1,957
    Joined:
    Dec 2, 2009
    Just run it until it croaks. Either it will work or it won't. I ran my old Titan X (Maxwell) on a 450w PS in my NCase build and it worked fine until I took it apart for parts. Of course don't expect to OC anything since you won't have any headroom left, that's for sure.
     
  3. sk3tch

    sk3tch [H]ard|Gawd

    Messages:
    1,383
    Joined:
    Sep 5, 2008
    It's running today OC'd to 4.3GHz with an AIO water cooler plus a GTX 1080 just fine @ 550W. I believe it's a re-badged Seasonic so it's an awesome PSU.

    But yeah, you're right - it works or it doesn't and if it blows up it blows up. It's gold efficiency so it will probably actually have a bit of headroom assuming I don't OC the 1080 Ti like crazy (which it's pretty pointless to do so, anyway with NVIDIA's restrictions).
     
  4. noobferguson

    noobferguson Limp Gawd

    Messages:
    453
    Joined:
    Oct 6, 2013
    Thankfully, it's a Seasonic so even it fails it won't quite blow up (I only hear of really poor quality PSUs taking other components with them when they die).
     
  5. sk3tch

    sk3tch [H]ard|Gawd

    Messages:
    1,383
    Joined:
    Sep 5, 2008
    Decided to use the Seasonic X-1250 Gold in my garage - forgot the Z needs 3x 4 prong plugs. Couldn’t dig them up for the 550W G2.