4 slots supporting up to 16GB of 1333 MHz DDR3 SDRAM.
AMD Radeon HD 5670 (512MB) or HD 5750 (1GB GDDR5). Display: 27-inch LED-backlit IPS, 2560x1440 resolution. Essential Technician Tools Suction Cups: For safely lifting the front glass panel.
Requires pushing through the RAM cavity for easier release. Troubleshooting & Common Issues Apple Technician Guide iMac (27-inch, Mid 2010)
Use a soft, non-abrasive surface to protect the glass and display when removed. Key Disassembly Steps
Remove eight T10 screws. Carefully tilt the panel to disconnect four critical cables: Vertical sync cable. Backlight power cable. LCD temperature sensor. DisplayPort data cable. 4 slots supporting up to 16GB of 1333 MHz DDR3 SDRAM
requires specialized tools and a methodical approach, particularly when handling the large glass panel and internal connectors. Below is a technician-focused guide based on official procedures and common repair insights. Model Identifier: iMac11,3 (EMC 2390)
Up to 3.6 GHz Intel Core i3 or i5 (Dual-Core); up to 2.93 GHz Intel Core i7 (Quad-Core). Essential Technician Tools Suction Cups: For safely lifting
Detailed, step-by-step guides are available from iFixit and PowerbookMedic .
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