The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    M18xR2 twin psu dilema

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by louis1978uk, Feb 18, 2014.

  1. louis1978uk

    louis1978uk Notebook Enthusiast

    Reputations:
    103
    Messages:
    29
    Likes Received:
    11
    Trophy Points:
    6
    So i'm looking to do the 2x 780m-880m upgrade and sell off the twin 680m's and i'm wondering with the [email protected] 18gb 1866ddr3 2x 500gb ssd's no conventional hd-d will i need a twin psu adapter and 2nd 330watt psu for a pair of 780's+
    i'll likely attempt to clock them at a later date but initially i want a pair of 780's stock clocks in sli.
     
    louis1978uk, Feb 18, 2014
    #1
  2. TBoneSan

    TBoneSan Laptop Fiend

    Reputations:
    4,460
    Messages:
    5,558
    Likes Received:
    5,798
    Trophy Points:
    681
    Good luck getting 4.9Ghz. Why not just shoot for 5Ghz ? :p If you were running those kinds of clocks you'd certainly need a dual PSU if you wanted any extra juice to go to your GPU.
    Try posting here next time if you want a better discussion on any Alienware 18 matters...
     
    TBoneSan, Feb 19, 2014
    #2
  3. TomJGX

    TomJGX I HATE BGA!

    Reputations:
    1,456
    Messages:
    8,707
    Likes Received:
    3,315
    Trophy Points:
    431
    Probably dual PSU's and liquid nitrogen cooling will be required lol... 4.9GHz is insane...
     
    TomJGX, Feb 23, 2014
    #3
  4. yotano21

    yotano21 Notebook Evangelist

    Reputations:
    67
    Messages:
    570
    Likes Received:
    332
    Trophy Points:
    76
    I never heard of someone going 4.9 with normal voltages, all voltages at around that clock are over 1.5 volts, insane. I'm fine with 4.5 with my 3920xm.
     
    yotano21, Feb 24, 2014
    #4
  5. TBoneSan

    TBoneSan Laptop Fiend

    Reputations:
    4,460
    Messages:
    5,558
    Likes Received:
    5,798
    Trophy Points:
    681
    Yeah, it wouldn't surprise me if Mr Fox and Johnksss have hit 4.9 with Ivy, if so it might have been in front of the AC and not exactly everyday conditions. I know Mr Fox can run 4.8 ghz with out trouble. I can do 4.6 all day long on liquid metal ultra. My thermals are fantastic and will take higher clocks but I think my silicon says no.
    Anyway I doubt the OP is very serious considering he hasn't returned.
     
    TBoneSan, Feb 24, 2014
    #5