Will this power supply be enough?

[Backwardsman9902]

Okay... so I just ordered a bunch of new parts.. and my power supply is

Power Supply:BFG 450 watt LS-Series

And here are all the parts I am getting..

Processor:AMD Phenom II X4 945 Deneb 3.0GHz Quad-Core
Motherboard: GIGABYTE GA-MA785GMT-UD2H AM3 AMD 785G HDMI Micro ATX AMD Motherboard
Graphics Card: SAPPHIRE Vapor-X Radeon HD 4890 1GB
RAM: 240-Pin DDR3 SDRAM DDR3 1600

I went through a bunch of different Power Supply calculators on the web, and they all said that this setup would only require around 300 watts... which seemed a little weird to me. So, I just want to make sure before I get all of my equipment and blow out my power supply again.. (It happened before, and killed the new equipment I bought , so I am being really careful this time)

Oh also.. I am using one DVD-rom drive.. One CD-Read/Write drive.. and one regular SATA hard drive (160 gb)

 

[jonnyGURU]

The PSU should be enough, but it only has one PCIe connector. That card needs two, correct?

 

[Backwardsman9902]

Well, I haven't noticed that until now.. but if I use an adapter that switches a four pin molex power connector into a PCIe connector.. here it is right here

I'm wondering if you think that will work? Or, is there even any connector in my psu that will work with that adapter?

 

[jonnyGURU]

Use one that adapts TWO Molex into ONE PCIe. Not one to one.

The graphics card didn't come with one?

 

[Backwardsman9902]

oh, alright.. cool.. I looked, and my psu has a bunch of those molex connectors.. so I found one of those adapters you were talking about and I am going to order it on newegg.. Here it is just in case you were wondering The Adapter

Thanks for all your help

Oh, and I haven't received the graphics card yet... but if it does come with one, then I'll have an extra