#501
In that case my recommendation is building it yourself, if possible.
No idea regarding windows, sorry.
#502
That would've been my point, for 50$ you could go fanless and at least µATX, ECC RAM if you wanted to and so on. Phenom is just the complete opposite of what you'd want for a media server and no undervolting is going to change that.
The PSU should definitely be ok then, I guess you see why I don't trust the other 3 versions.
This is as low as I'd go:
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Core i5-4590 3.3GHz Quad-Core Processor ($189.95 @ SuperBiiz)
Motherboard: ASRock B85 Anniversary ATX LGA1150 Motherboard ($59.98 @ Newegg)
Video Card: Sapphire Radeon R9 270X 2GB Dual-X Video Card ($124.99 @ Newegg)
Total: $374.92
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-29 06:03 EDT-0400
It should get you enough fps, but just barely. So worst case TF2 spazzing out and you might get a CPU bound drop, 10v10 CS:GO worst case and you might get a GPU bound drop. With quite a bit of buffer (you never know when the next "performance" update hits) it would look like this:
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Xeon E3-1231 V3 3.4GHz Quad-Core Processor ($241.95 @ SuperBiiz)
Motherboard: Asus Z87-A ATX LGA1150 Motherboard ($74.98 @ NCIX US)
Video Card: PowerColor Radeon R9 280 3GB TurboDuo Video Card ($149.99 @ Newegg)
Total: $466.92
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-29 06:06 EDT-0400