Do i need to replace my PSU?

[EarlyGab]

Do i need to replace my PSU? i only have a Thermaltake Toughpower Grand 650W 80+ gold. Its the second time my computer just shuts down by itself and i think its because of the PSU? it does that like once every 2months. i feel like i need to get a higher PSU wattage.

 

Im saving up for a corsair RM850W 80+ gold fully modular. Any other PSU recommendations?

 

My Rig:

CPU: AMD FX-6300 3.5Ghz Black Edition

MOTHERBOARD: Gigabyte 970A-DS3P

RAM: G.Skill RipJawsX 8GB Dual 1600 CL9

GPU: Sapphire R9-280X Dual-X OC 3GB GDDR5 384bit

CASE: Aero Cool Xpredator X1 (Black)

STORAGE: Seagate 1TB 7200RPM 64MD Sata Hard Drive 3.5"

PSU: Thermaltake Toughpower Grand 650W

DISPLAY(S): Samsung 22" LED S22D300

COOLING: Cooler Master Hyper T4

KEYBOARD: Corsair Vengeance K95

OS: Windows 8.1 SL

[AlwaysFSX]

You don't need a higher wattage psu, but I would change brands given that I'm not the only one having problems with stability on TT power supplies.

[Clyne]

evga g1 650w, it could shut down because the power cables aren't plugged in properly.  

[EarlyGab]

im really thinking of replacing it with that corsair rm850w gold 80+ or corsair for future proofing too i might crossfire dual r9 280x. thanks for the tips tho