Apple iMac 21.5" A1311 AMD Radeon HD 6770m Graphics Video Card Mid-2011 HD6770M with Heatsink 661-5945 ATI
Refurbished fully tested Genuine AMD Radeon replacement Graphic/Video Card. Complete with Heatsink and sensor. System pulled from a working A1311 Mid-2011 computer, never repaired guaranteed with a 3 months warranty against failure. This is the highest rated/specification video card made for the A1311 2011 21.5" iMac All-in-One Apple computer. Stress tested, with original heatsink and with ideal core temperatures.
Apple Part No. 661-5945
Model: ATI Radeon HD6770M
Memory: 512mb GDDR5 SDRAM
Compatibility: for 21.5" iMac A1311 Mid-2011
Other Compatible systems: Also compatible with A1312 iMac 27" Mid-2011 (heatsinks differ**)
** iMac 27" however will fit with heatsink provided, except for the top right securing screw will not line up, this will not affect its performance. DO NOT replace the heatsink, as this will void your warranty, please speak to seller before attempting to remove the heatsink, be advised using normal CPU paste will not be suffice for Apple video cards**
If unsure if this part is compatible with your system please check original serial number above to see if your system matches the system the card was pulled from if unsure please contact us directly.
All parts are security etched DO NOT use our parts for testing/diagnostic purposes as refunds will not be given. We operate a fitting service at our Birmingham based repair centre and can arrange collection and return of your system anywhere in the UK. Technical support available from seller's own in-house qualified technicians.
