|"i only have 550w coolermaster PSU"|
WHICH Coolermaster 550W PSU? If it's a GX, it's a damn good unit. If it's an eXtreme, it's not so good, but probably OK.
What type of case do you have - PSU mounted at the bottom or the top? Top mounted are superior & have much better cooling characteristics. Why do you need four 120mm cooling fans? Just one exhaust fan in the rear is generally sufficient. I have no idea what a "pcu cooler 130w" is?
Too bad you didn't ask questions before you built.