RCFProd :
The first good power supply starts at 5.1K which is the Seasonic.
Many people use Corsair power supplies because it is a popular brand. However their power supplies below 100 dollars are not so good.
As I said it will work. You might need a bit of luck to see it working after 3 years of use.
I will upgrade my gpu to high end card mayb after 2yrs.So would Corsair VS550 can handle my rig till then.
Btw here is my rig
CPU :- Intel i3 3220 3.30 GHz
Mobo:- Gigabyte H61M-S1
Ram :- Corsair Value Select 8GB (4GBx2) 1600MHz
GPU :- Sapphire Radeon HD 7770 1GB GDDR5 (Upgrading to ATI Radeon Sapphire R9 270x 2GB GDDR5 OC Edition)
HDD :- Seagate 500GB (7200rpm/16M)
PSU :- iball PPS-255 450watt (Upgrading to Corsair VS550)
Case:- iball i8298
Monitor :- Acer P196HQL 18.5" (1366x768) Wide Screen
Would this PSU help me atleast for two years?