iMac12,2
iMac (27-inch, Mid 2011)iMac2011EFI 64-bitno security chip
iMac (27-inch, Mid 2011)
HD 6770M
Quad-core Core i5 2.7 GHz · Radeon HD 6770M
Untested0/27 tested
Boot0/3 passed
- Stock installer boots via 64-bit EFIUntested
- Internal storage detected and installation completesUntested
- Installed system starts, restarts and shuts down cleanlyUntested
Graphics0/2 passed
- Discrete GPU accelerationUntested
- External display outputUntested back-8back-9
Display0/2 passed
- Internal display at native resolutionUntested
- Display brightness controlUntested
Input0/1 passed
- IR receiver (Apple Remote)Untested
Power0/1 passed
- Sleep and wakeUntested
Audio0/7 passed
- Built-in speakersUntested
- Built-in microphoneUntested
- Headphone / analog audio outputUntested back-1
- Line-in / analog audio inputUntested back-2
- Optical digital audio outputUntested back-1
- Optical digital audio inputUntested back-2
- Audio over HDMI / DisplayPortUntested
Camera0/1 passed
- Built-in webcamUntested
Networking0/3 passed
- Wi-FiUntested
- BluetoothUntested
- EthernetUntested back-10
Ports0/4 passed
- USB-A portsUntested back-3back-4back-5back-6
- Thunderbolt devices (storage, docks, hotplug)Untested back-8back-9
- FireWireUntested back-7
- SD card readerUntested right-1
- Port methodology
Storage0/1 passed
- Internal optical drive reads discsUntested
Thermal0/2 passed
- Temperature sensors report under loadUntested
- Fans respond to loadUntested
Hardware Configuration Detailsimac12-2-27-mid-2011-a
- CPU
- Core i5-2500S 2.7 GHz · 4-core (Sandy Bridge)
- Memory
- 4 GB DDR3-1333 SO-DIMM · max 16 GB
- Storage
- 1 TB HDD · SATA · BTO 2 TB HDD, 256 GB SSD
- Display
- 27" 2560×1440 · LED IPS
- Graphics
- AMD Radeon HD 6770M · OpenGL ES 3.1
pci:1002:6740 - Wi-Fi
- Atheros AR93xx (AR9380) 802.11a/b/g/n
pci:168c:0030 - Bluetooth
- Apple Bluetooth 2.1+EDR (USB 05ac:8215)
usb:05ac:8215 - Audio codec
- Cirrus Logic CS4206
- Camera
- Apple FaceTime HD camera (USB 05ac:850b)
usb:05ac:850b - Ethernet
- Broadcom NetXtreme BCM57765 Gigabit Ethernet
pci:14e4:16b4 - Storage controller
- Intel 6 Series SATA controller
pci:8086:1c03 · pci:8086:1c02 - Thunderbolt controller
- Intel CV82524 "Light Ridge" Thunderbolt controller
pci:8086:1513 - SD card reader
- Apple internal SD card reader (USB 05ac:8403)
usb:05ac:8403 - FireWire controller
- LSI FW643 FireWire 800 controller
pci:11c1:5901 - IR receiver
- Apple IR receiver (USB 05ac:8242)
usb:05ac:8242 - Ports
- Line in (analog) · Optical digital audio in · Headphone / line out (analog) · Optical digital audio out · Gigabit Ethernet · FireWire 800 · SD card slot · 2× Thunderbolt 1 · 4× USB 2.0 (Type-A)
- Port layout
- Download drawing (SVG)
Port methodology - Right side:1
right-1SD card slot (on the right edge of the display, below the SuperDrive slot) - Back:1
back-1Headphone / line out (analog) + Optical digital audio out2back-2Line in (analog) + Optical digital audio in3back-3USB 2.0 (Type-A)4back-4USB 2.0 (Type-A)5back-5USB 2.0 (Type-A)6back-6USB 2.0 (Type-A)7back-7FireWire 8008back-8Thunderbolt 19back-9Thunderbolt 110back-10Gigabit Ethernet
- Right side:1
- Features
- Built-in display · Built-in speaker(s) · Built-in microphone · Cooling fan · IR receiver (Apple Remote) · Internal optical drive · Audio over Mini DisplayPort / Thunderbolt
- Order no.
- MC813LL/A
HD 6970M
Quad-core Core i5 3.1 GHz or Core i7 3.4 GHz · Radeon HD 6970M
Untested0/27 tested
Boot0/3 passed
- Stock installer boots via 64-bit EFIUntested
- Internal storage detected and installation completesUntested
- Installed system starts, restarts and shuts down cleanlyUntested
Graphics0/2 passed
- Discrete GPU accelerationUntested
- External display outputUntested back-8back-9
Display0/2 passed
- Internal display at native resolutionUntested
- Display brightness controlUntested
Input0/1 passed
- IR receiver (Apple Remote)Untested
Power0/1 passed
- Sleep and wakeUntested
Audio0/7 passed
- Built-in speakersUntested
- Built-in microphoneUntested
- Headphone / analog audio outputUntested back-1
- Line-in / analog audio inputUntested back-2
- Optical digital audio outputUntested back-1
- Optical digital audio inputUntested back-2
- Audio over HDMI / DisplayPortUntested
Camera0/1 passed
- Built-in webcamUntested
Networking0/3 passed
- Wi-FiUntested
- BluetoothUntested
- EthernetUntested back-10
Ports0/4 passed
- USB-A portsUntested back-3back-4back-5back-6
- Thunderbolt devices (storage, docks, hotplug)Untested back-8back-9
- FireWireUntested back-7
- SD card readerUntested right-1
- Port methodology
Storage0/1 passed
- Internal optical drive reads discsUntested
Thermal0/2 passed
- Temperature sensors report under loadUntested
- Fans respond to loadUntested
Hardware Configuration Detailsimac12-2-27-mid-2011-b
- CPU
- Core i5-2400 3.1 GHz · 4-core; Core i7-2600 3.4 GHz · 4-core (Sandy Bridge)
- Memory
- 4 GB DDR3-1333 SO-DIMM · max 16 GB
- Storage
- 1 TB HDD · SATA · BTO 2 TB HDD, 256 GB SSD
- Display
- 27" 2560×1440 · LED IPS
- Graphics
- AMD Radeon HD 6970M · OpenGL ES 3.1
pci:1002:6720 - Wi-Fi
- Atheros AR93xx (AR9380) 802.11a/b/g/n
pci:168c:0030 - Bluetooth
- Apple Bluetooth 2.1+EDR (USB 05ac:8215)
usb:05ac:8215 - Audio codec
- Cirrus Logic CS4206
- Camera
- Apple FaceTime HD camera (USB 05ac:850b)
usb:05ac:850b - Ethernet
- Broadcom NetXtreme BCM57765 Gigabit Ethernet
pci:14e4:16b4 - Storage controller
- Intel 6 Series SATA controller
pci:8086:1c03 · pci:8086:1c02 - Thunderbolt controller
- Intel CV82524 "Light Ridge" Thunderbolt controller
pci:8086:1513 - SD card reader
- Apple internal SD card reader (USB 05ac:8403)
usb:05ac:8403 - FireWire controller
- LSI FW643 FireWire 800 controller
pci:11c1:5901 - IR receiver
- Apple IR receiver (USB 05ac:8242)
usb:05ac:8242 - Ports
- Line in (analog) · Optical digital audio in · Headphone / line out (analog) · Optical digital audio out · Gigabit Ethernet · FireWire 800 · SD card slot · 2× Thunderbolt 1 · 4× USB 2.0 (Type-A)
- Port layout
- Download drawing (SVG)
Port methodology - Right side:1
right-1SD card slot (on the right edge of the display, below the SuperDrive slot) - Back:1
back-1Headphone / line out (analog) + Optical digital audio out2back-2Line in (analog) + Optical digital audio in3back-3USB 2.0 (Type-A)4back-4USB 2.0 (Type-A)5back-5USB 2.0 (Type-A)6back-6USB 2.0 (Type-A)7back-7FireWire 8008back-8Thunderbolt 19back-9Thunderbolt 110back-10Gigabit Ethernet
- Right side:1
- Features
- Built-in display · Built-in speaker(s) · Built-in microphone · Cooling fan · IR receiver (Apple Remote) · Internal optical drive · Audio over Mini DisplayPort / Thunderbolt
- Order no.
- MC814LL/A · MD063LL/A
1 GB standard; 2 GB build to order (same chip).
Research notes (unverified)
- The Sandy Bridge CPU's integrated GPU is visible to Linux (8086:0102, i915) but does not drive any output; the AMD GPU does.
Sources (7) and identifiers
Board IDs: Mac-942B59F58194171B
- https://support.apple.com/en-us/112569
- https://support.apple.com/en-us/108054
- https://everymac.com/systems/apple/imac/specs/imac-core-i5-2.7-27-inch-aluminum-mid-2011-thunderbolt-specs.html
- https://everymac.com/systems/apple/imac/specs/imac-core-i5-3.1-27-inch-aluminum-mid-2011-thunderbolt-specs.html
- https://everymac.com/systems/apple/imac/specs/imac-core-i7-3.4-27-inch-aluminum-mid-2011-thunderbolt-specs.html
- https://github.com/acidanthera/OpenCorePkg/blob/master/AppleModels/DataBase/iMac/IM122.yaml
- https://github.com/linuxhw/LsPCI/tree/master/All%20In%20One/Apple/iMac12/iMac12%2C2