HP xw4400 Workstation ATX chassis
HP Compaq 8300 Convertible Mid-Tower motherboard
InWin Powerman 400W 80+ power supply
Arctic F9 PWM rear fan
Intel Core i5 3550 3.3GHz quad core processor
12GB DDR3 12800U RAM (3x4GB, will be upgraded to 16GB)
AMD FirePro V5900 2GB PCIe video card
LG GH24NSB0 24X DVDRW drive
SanDisk X300s 128GB SSD
Hitachi 1TB hard drive
Windows 7 Professional
2xUSB 2.0 ports rear
2xUSB 2.0 ports front
4xUSB 3.0 ports rear
Audio in/out jacks front/rear
Rear... the HP Elite 8300 had the I/O shield integrated into the original case so no shield here. It also took some cutting of the motherboard tray to get the newer motherboard to fit (originally was a 2nd generation Intel Core 2 Duo)
All sorts of wiring going on here
There’s an SSD in there, somewhere.
This is an ATX adapter required to use these motherboards with traditional ATX power supplies. You must also connect a wire from one of the pins on the white plug to the one of the pins of the CPU fan header to prevent an error on every boot.
Pinout for the power switch + LEDs.
Audio pinout... the original uses th8e old style audio header. Converted it like so, hope this diagram helps someone else in the future. The USB 2.0 header on the original front panel connector is standard.
These Arduino male to female connectors are great for extending short USB/power/audio headers or repurposing proprietary plugs. They’re really handy and you can see them being used in the above pictures for the audio and power headers.
AMD FirePro V5900
Windows 7 desktop
There it is!