is it enough Huntkey Green Star 550 W psu with xfx AMD Radeon R9 280X Double Dissipation Edition 3GB DDR5

So I built a new PC and it includes
PROCESSOR: AMD FX6300 3500mhz
GPU: Radeon r9 280x 3GB
MOBO: asus m5a78l-m lx plus
RAM: Kingston HyperX FURY 8GB (2x4GB), DDR3, 1866MHz, CL10, 1.5V
and my old HDD that is seagate 500 GB
and finally the power supply Huntkey Green Star 550 W

recently i have a problem while i am playing games such as : Middle-earth: Shadow of Mordor
my problem is that my pc suddenly shuts down then restarts after a few seconds when im playing video games.

and after a few days when i turn on my PC everything turn on except for the monitor but it give white screen with blue lines in the left corner of the screen and then turn black , i turn off the PC by power button and then the monitor turn on without any problems , i should do this every time i want to turn on the PC

i think this problem related to PSU , i am looking for xfx power supply or EVGA or Corsair or

which PSU is good with this PC and do you think this problem related to MOBO im confused ?
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    System Power Supply Requirements for a single Radeon R9 280X
    AMD specifies a minimum of a 600 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
    the system power supply must also have a maximum combined +12 Volt continuous current rating of 40 Amps or greater
    the system power supply should also have at least one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors. There are some non-reference design cards that require two 150-Watt 8-pin PCI Express supplementary power connectors.

    Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

    Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

    Huntkey Green Star 550W (LW-6550SG) a.k.a. V-Power 550W (LW-6550SG)
    OEM: Huntkey
    maximum combined +12 Volt continuous current rating: 33 Amps <===== Insufficient
    two 75-Watt 6-pin PCI Express supplementary power connectors <===== Insufficient
    Modular Output Cables: No
    Official Intel Haswell Compliance: No
    • No 80 PLUS Efficiency Certification

    The Huntkey LW-6550SG will burn out if you attempt to draw 550W from it.

    It exploded during Hardware Secrets' review of the Huntkey Green Star 550W (LW-6550SG):
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