Is my PSU adequete for this system?

build
i5 2500k oc 4.3GHz about 1.3 vcore when OCed
7950 3GB stock
asrock z68 Extreme3 gen3
8GB ddr3 1600
Antec Bp 550w plus, modular


Now I went to http://extreme.outervision.com/PSUEngine and It recommended a PSU of 389W

However, When I was running GTA IV with Icenhancer 2.1 it seemed to be stuttering almost. I don't know if this is due to a small PSU or not. Do I need to get a larger PSU or no?

Thanks
4 answers Last reply
More about adequete system
  1. as i say time and time again, a 550 watt PSU can handle any single graphics card system:
    AMD Radeon HD 7950 3GB Graphics Card Review
    with a sandy bridge-E system

    if you are stuttering in a game, any game, that is a gpu problem.
    a psu problem would be your system shuts down.
  2. What do you recommend if i notice some stutterring?
  3. that would be related to the drivers but since i have not had an AMD gpu i could not tell you how to deal with the catalyst control center.

    but i will suggest the generic uninstall the drivers, boot into safe mode and run driver sweeper to get rid of any remnants then re-install.
  4. Anonymous said:
    as i say time and time again, a 550 watt PSU can handle any single graphics card system:
    AMD Radeon HD 7950 3GB Graphics Card Review
    with a sandy bridge-E system
    http://www.pcper.com/files/review/2012-01-28/power.jpg
    if you are stuttering in a game, any game, that is a gpu problem.
    a psu problem would be your system shuts down.


    agreed. my rig in my sig uses only 330watts and thats from the wall so its less then that out of the psu
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