iMac13,2

iMac (27-inch, Late 2012)iMac2012EFI 64-bitno security chip

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iMac13,2 GTX 660M GTX 675MX GTX 680MX 0 of 3 configurations tested Cards Matrix

Criterion	GTX 660M	GTX 675MX	GTX 680MX	Config count
Boot · a failure here makes a config Unsupported 0 of 9 passed
Stock installer boots via 64-bit EFI	Untested	Untested	Untested	3
Internal storage detected and installation completes	Untested	Untested	Untested	3
Installed system starts, restarts and shuts down cleanly	Untested	Untested	Untested	3
Graphics 0 of 6 passed
Discrete GPU acceleration	Untested	Untested	Untested	3
External display output	Untested	Untested	Untested	3
Display 0 of 6 passed
Internal display at native resolution	Untested	Untested	Untested	3
Display brightness control	Untested	Untested	Untested	3
Power 0 of 3 passed
Sleep and wake	Untested	Untested	Untested	3
Audio 0 of 15 passed
Built-in speakers	Untested	Untested	Untested	3
Built-in microphone	Untested	Untested	Untested	3
Headphone / analog audio output	Untested	Untested	Untested	3
Optical digital audio output	Untested	Untested	Untested	3
Audio over HDMI / DisplayPort	Untested	Untested	Untested	3
Camera 0 of 3 passed
Built-in webcam	Untested	Untested	Untested	3
Networking 0 of 9 passed
Wi-Fi	Untested	Untested	Untested	3
Bluetooth	Untested	Untested	Untested	3
Ethernet	Untested	Untested	Untested	3
Ports 0 of 9 passed
USB-A ports	Untested	Untested	Untested	3
Thunderbolt devices (storage, docks, hotplug)	Untested	Untested	Untested	3
SD card reader	Untested	Untested	Untested	3
Thermal 0 of 6 passed
Temperature sensors report under load	Untested	Untested	Untested	3
Fans respond to load	Untested	Untested	Untested	3

Research notes (unverified)

Thin redesign: no optical drive, IR receiver, FireWire or audio line-in. Audio is a Cirrus Logic CS4206 codec on every observed machine.

Sources (7) and identifiers

Board IDs: Mac-FC02E91DDD3FA6A4