350w psu

hi, i have a inwin 350w psu: http://www.in-win.com.tw/US/products_power_series.php?cat_id=3&series_id=51
and i wanted to know if i can run a 7770 because in this chart it says it needs only 226: http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/51543-amd-radeon-hd-7770-hd-7750-review-14.html

i have 4 gb ram
intel pentium g620
500gb harddrive
and a cd/dvd burner

my resolution is 1080p
but i dont have to play on that resolution or with eyecandy effects.
so will it work? thanks in advance.
6 answers Last reply
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  1. You can read here that the 7770 requires at least 500W PSU:

    http://www.amd.com/us/products/desktop/graphics/7000/7770/Pages/radeon-7770.aspx
  2. For a system using a single Radeon HD 7770 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 23 Amps or greater and have at least one 6-pin PCI Express supplementary power connector.

    Total Power Supply Wattage is NOT the crucial factor in power supply selection! Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most important factor.
  3. where can i see how much amperage i need for each card?
  4. Anonymous said:
    where can i see how much amperage i need for each card?

    http://www.techpowerup.com/reviews/HIS/HD_7770_iCooler/26.html
    a reference 7770 will draw 73 watts peak and 83 under stress while benchmarking (73/12=6.1amps)and(83/12=7amps)[rounding up]. but do not forget your cpu, hard drives and other peripherals also need the 12 volt rail.
    overestimate 12 amps for that; 18 amps and to have the load be no more than 80% of the rated continous amperage 18/.8= 22.5 amps with a 6 pin connector.
  5. @OP: You're really skimming the line for the PSU. I suggest getting at least a 400W or 450W. Then you should be safe using the 7770.
  6. Well you have 22 amps to play with.

    a 65 watt cpu(MAX).
    I would almost say it would work as long as the system is not pushed hard.

    I am going with the power supply being able to deliver what it says(22A @ 12 volts)to give you some overage(The Hardware Canucks system takes MUCH more power then your system). If it cant, all bets are off

    That power supply is closer to a 300 watt then anything else.

    I would like to point out that I have a 5770(With i5 750 under volted) system with a 300 watt(FSP) power supply(and have been unable to pull over 180 from the wall ) :)
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