how much SMPS watt need for my new pc HELP

3deffect

Reputable
Oct 11, 2015
7
0
4,510
well i just purchased new component..and i think its not going well my pc get restart automatic anytime..without beep sounds...

my config is

CPU--------intel core i5 3450 cpu @3.10Ghz 3.50GHZ
RAM-----Corsair Vengeance DDR3 4 GB (1 x 4 GB) PC DRAM (CMZ4GX3M1A1600C9)
SMSP------ iBall 450W Computer Power Supply PPS-255 450 Watts PSU
motherboared ----- Gigabyte GA-B75M-D3H Motherboard
samsung DVD multi recoder
HDD---- WD 500GB 5200

well i m not using an GPU..but my system get restart anytime..i dont understand why this happening..