do I need a higher power supply

[Rhyz0_0]

Is the 500w power supply enough for this build?

CPU: AMD FX-6300 3.5GHz 6-Core Processor
Motherboard: Gigabyte GA-78LMT-USB3 Micro ATX AM3+ Motherboard
Memory: Crucial 8GB DDR3 1333 MT/s CL9 @1.5V Ballistix Sport UDIMM 240 Pin Memory Module
Storage: My 350gb storage from old pc
Video Card: MSI Radeon R9 280X 3GB TWIN FROZR Video Card
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply

 

[Math Geek]

the 280x is a very high power gpu so the 500w won't be enough. 600-650 would be good enough but this one is on sale right now and a great price and more than enough power.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Rosewill Capstone 750W 80+ Gold Certified ATX Power Supply ($49.99 @ Newegg)
Total: $49.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-04 13:27 EST-0500

if you are building the pc now and have none of these parts, give us a budget and we can put something together for you. if it's just the psu you need, then this one is a great buy.

 

[tt4770]

PSU power calculator -To determine which power supply and how much W is needed.
Check out:Advance- http://www.coolermaster.outervision.com/advance.jsp
Standard-http://www.coolermaster.outervision.com/index.jsp

 

[jimthenagual]

To calculate how many watts your system needs, take each component's thermal design power (TDP) and add them up.

FX6300 TDP is 95W
R9 280X TDP is 250W
Rest of system 100W
Overhead 150W
Total recommended: 595W

Your PSU actually will run that system (if we take out the overhead in the calculation), sure. But you're PSU will be working very, very hard, especially if you try any overclocking. Never recommended.

 

[mdocod]

Approximate peak power dissipation is a combination of the peak power dissipation of the CPU, RAM, and GPU, combined with the steady state power dissipation of the chipset, cooling fans, SuperIO, USB connected accessories, combined with the idle power dissipation of storage devices, southbridge, audio sub-system etc, and finally the conversion (VRM) losses for the CPU, RAM, and other <3V devices:

FX-6300: 85-105W (prime95, varies from chip to chip characteristics)
non reference R9 280X: 250-280W (Furmark, varies from chip to chip, VRM losses are included in card TDP)
1x8GB dual rank 1.5V late generation DDR3 @1600-9-9-9: ~3W
760G chipset: ~11W
SB750 (southbridge): ~5W
"old" mechanical hard drive: ~8W
System Fans (assuming 4 total): ~8W
SuperIO, USB accessories, sound, ethernet, etc: ~5-20W (depends on many factors)
VRM conversion losses: ~15W

That's ~450W worst case scenario.

I wouldn't personally use an EVGA 500B to power any system with a peak power dissipation over ~350W. If at all possible, I would avoid the EVGA 500B on general principal (it's a mediocre quality PSU, regardless of what it is used for).

There's a perfectly reasonable chance that the 500B will never cause any problems within the useful life of the machine. It's already there, unless you suspect there is something wrong with it just keep using it.

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