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330W or 660W AC Adapter for 980M SLI

Discussion in 'Hardware' started by StevenMal, Jun 5, 2015.

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  1. StevenMal

    StevenMal Thread Starter

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    May 12, 2015
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    I'm considering a Eurocom X8 with 980M SLI and the sales rep I'm talking to says I'll need a 660W AC adapter instead of a 330W adapter for 980M SLI. I understand that SLI consumes extra power but both the MSI GT80 and the Sager NP9377 with 980M SLI from xoticpc.com come with 330W AC adapters, without an option for a 660W AC adapter. Is there any reason why? Should I spend the extra $245 for the 660W AC adapter or will the 330W AC adapter be sufficient for 980M SLI? Thanks.
     
    Last edited: Jun 6, 2015
  2. dustyjay

    dustyjay

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    First Name:
    Jay
    please post the rest of your system specs? If by AC Adapter do you mean Power Supply? If so then a 330w Power supply would be under powered for an discrete Video Adapter plus the rest of your system. You not only need to provide power to the Video Card but also ALL the other components of your system as well.
     
  3. StevenMal

    StevenMal Thread Starter

    Joined:
    May 12, 2015
    Messages:
    30
    120Hz display
    CPU: i7-4710MQ OR i7-4810MQ
    GPU: GTX 980M SLI
    16 GB RAM
    SSD: Micron/Crucial M500 480GB
    HDD: 1TB 7200rpm

    I've never overclocked before and I don't plan on it but I want to make use of my 980M SLI so do I NEED to spend the extra $245, if I'm not going to be overclocking? I've never used a dual AC adapter either. I'll probably end up getting the 660W but I just want to be sure.

    TLDR: How would the system perform with a 330W AC adapter?
     
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