MacPro4,1

Mac Pro (Early 2009)Mac Pro2009EFI 64-bitno security chip

MacPro4,1 GT 120 HD 4870 0 of 2 configurations tested Cards Matrix

Criterion	GT 120	HD 4870	Config count
Boot · a failure here makes a config Unsupported 0 of 6 passed
Stock installer boots via 64-bit EFI	Untested	Untested	2
Internal storage detected and installation completes	Untested	Untested	2
Installed system starts, restarts and shuts down cleanly	Untested	Untested	2
Graphics 0 of 4 passed
Discrete GPU acceleration	Untested	Untested	2
External display output	Untested	Untested	2
Power 0 of 2 passed
Sleep and wake	Untested	Untested	2
Audio 0 of 10 passed
Built-in speakers	Untested	Untested	2
Headphone / analog audio output	Untested	Untested	2
Line-in / analog audio input	Untested	Untested	2
Optical digital audio output	Untested	Untested	2
Optical digital audio input	Untested	Untested	2
Networking 0 of 6 passed
Wi-Fi	Untested	Untested	2
Bluetooth	Untested	Untested	2
Ethernet	Untested	Untested	2
Ports 0 of 4 passed
USB-A ports	Untested	Untested	2
FireWire	Untested	Untested	2
Storage 0 of 2 passed
Internal optical drive reads discs	Untested	Untested	2
Thermal 0 of 4 passed
Temperature sensors report under load	Untested	Untested	2
Fans respond to load	Untested	Untested	2

Research notes (unverified)

Graphics cards are PCIe cards that owners often replace; configurations cover only the cards Apple sold with the machine.
Shares its board ID with MacPro5,1; many 2009 machines have been flashed to 5,1 firmware. Wi-Fi was optional (real machines show a BCM4322). Audio is a Realtek ALC889A codec on every observed machine.

Sources (11) and identifiers

Board IDs: Mac-F221BEC8