Ok, so this one is a little different than the other builds on PCPP.
This PC started out as a Gateway DX-4200-009 desktop tower circa 2009. PCPP didn't have most of the exact parts that I reused from the original PC. http://www.newegg.com/Product/Product.aspx?Item=N82E16883113088
The CPU is actually a Phenom II X4 9150e clocked at a low 1.8Ghz. This is a quad core CPU with a cool 65w TDP. The MoBo is actually a Foxconn mATX with an AMD 780G chipset that supports DDR2 RAM. So the reused parts are the CPU, MoBo, and RAM.
The purpose of this machine is to replace our 10 year old laptop that runs our Multi Router Traffic Grapher (MRTG) and a program called 'Big Brother' that is used for network monitoring. So essentially, only two programs will be run on it 24 hours a day/ 365 days a year. It will mostly be used via remote access also.
The other parts of this build that are not on PCPP, and I didn't expect to find them, (but could you add rackmount cases plox!) is the 2U server case. It is actually an iStarUSA D-214 rackmount 2U server case, not a Silverstone unit. I used the Silverstone as an analog, as it looks similar, although slightly bigger than the D-214.
The original PSU was a 7 year old Coolmax VL-600 (https://pcpartpicker.com/part/coolmax-power-supply-vl600b ) but I was afraid it would exlplode and burn down our very expensive Data Pod... that houses several Cisco Switches, ASA Firewall, and Fiber Network. Yeah, not good at all as we are a large Sports Complex and those units are valued at at least 5 digits each.
I opted for a low wattage, but true 80+ bronze unit from SeaSonic. From what I understand, it would be enough for this low powered machine.
The Windows 7 was sitting around and free and the Seagate HDD was on Newegg.com FlashSale for $9.99
Comments? I know it isn't exciting but I love refurbished/re purposed PC builds