Solved

i7 7700k with MSI NVIDIA GeForce GTX 1080 Ti GAMING X 11G GDDR5 psu questions

I was wondering if a 700 Watts - Enermax Revo DUO series 700Watts 80 Plus Gold high-efficient airflow w/ Dual Fans Power Supply is enough for an i7-7700k paired with a MSI NVIDIA GeForce GTX 1080 Ti GAMING X 11G GDDR5??
Reply to Quavooo
2 answers Last reply Best Answer
More about 7700k msi nvidia geforce gtx 1080 gaming 11g gddr5 psu questions
  1. Yes that is about a 420 watt PC.
    Reply to Zerk2012
  2. Best answer
    At stock speeds the card alone draws 305 watts ...



    Overclocked, add 17% (MSI Afterburner limit for that card) and you just under 350 watts, again just for the card

    The CPU @ stock is about 91 watts, 135 ish w/ a good OC.

    Add in 35 for MoBo, 40 for everything else and you are at 560 watts

    Let's see what nVidia says (600 watts for reference card):

    https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1080-ti/

    Quote:
    Thermal and Power Specs:
    91 = Maximum GPU Temperature (in C)
    250 W = Graphics Card Power (W)
    600 W = Recommended System Power (W)4
    One 6-pin, One 8-pin = Supplementary Power Connectors


    And Guru3D for the card in question:

    http://www.guru3d.com/articles_pages/msi_gtx_1080_ti_gaming_x_review,7.html

    Quote:
    Here is Guru3D's power supply recommendation:

    Nvidia GeForce GTX 1080 Ti - On your average system the card requires you to have a 600~650 Watts power supply unit.
    Nvidia GeForce GTX 1080 Ti SLI - On your average system the card requires you to have a 800~950 Watts power supply unit.

    If you are going to overclock your GPU or processor, then we do recommend you purchase something with some more stamina.


    So at stock (475), I'd go for a 650 watter using the old 1.25 - 1.50 times max draw rule of thumb ...if overclocking @ 560 watts "bawlz to the wall", I'd want a 700-850. The reason for this is not that you are in any way in danger of blowing things up. The reason is to get those highest OCs, you need a very stable voltage with low noise and PSU stats start to slip the closer you get to rated wattage. So what might be a 4.7 OC with plenty of headroom can sometimes become a 4.6 because noise and / or voltage wasn't as good at close to rated load.

    If you just doing moderate overclocking, a quality 650 - 750 is a good target. At stock, a 600 works ... never a good idea to go outstide manufacturers published specs.
    Reply to JackNaylorPE
Ask a new question Answer

Read More

Gaming MSI-Microstar Intel i7 Geforce Nvidia Gtx