CPU: AMD Phenom II X4 965 3.4ghz quad-core
GPU: ATI XFX Radeon HD 5770
Motherboard: Gigabyte-78LMT-USB3 Micro ATX
RAM: 2 DDR3 2gb Ram chips (I'm not going to pay over $100 for the same amount just because it was flashy)
PSU: Ultra X4 750W 80+Bronze 135mm fan
HDD/SSD: one 1TB HDD, one external 1TB
Optical Drives: 1 CD/DVD reader and 1 CD/DVD writer/rewriter
Fans: Stock fan over the CPU, 2 Red LED 120mm fans
Case: ThermalTake V3 AMD Black Edition Mid tower
The PSU I have now was given to me and it's pretty old... like so old I opened it and it looks like the Australian outback was on the fan blades.
I used the power supply calculators and the OuterVision is telling me anywhere from 648-712w
Then I used Newegg and AsusTek and many others and they all said anywhere from 338-548w.....
Which one is correct and which one should I get? please help