The iMac A1419 logic board, equipped with the powerful 3.5 GHz i7-4771 processor and GTX 780M 4GB graphics, is a remarkable component designed specifically for the 27” iMac Late 2013 model. With part number 661-8124, this logic board enhances performance, graphics capabilities, and overall system functionality. Moreover, it ensures smooth multitasking and seamless high-resolution workflows, making it ideal for professionals and enthusiasts alike.
Key Features of the iMac A1419 Logic Board
- High performance: Powered by the 3.5 GHz Intel i7-4771 quad-core processor.
- Enhanced graphics: Features NVIDIA GTX 780M with 4GB of dedicated memory.
- Efficient design: Optimized for the Late 2013 27” iMac A1419 model.
- Apple part number: Identified as 661-8124 for easy replacement and compatibility verification.
Why Choose This Logic Board?
Undoubtedly, the i7-4771 logic board for iMac A1419 Late 2013 offers numerous benefits:
- Incredible speed: The 3.5 GHz processor ensures faster computations and efficient multitasking.
- Improved visuals: GTX 780M supports high-resolution graphics, perfect for video editing and gaming.
- Long-term reliability: Designed for optimal cooling and durability, even under heavy workloads.

Compatibility
To clarify, this logic board is exclusively compatible with:
- 27” iMac A1419 (Late 2013 model).
How to Replace the Logic Board
Fortunately, replacing the logic board is manageable with the right tools and steps:
- First, power down your iMac and unplug all cables.
- Next, place the iMac face-down on a soft, clean surface.
- Use a suction tool to carefully remove the display panel.
- Locate the logic board assembly inside the unit.
- Disconnect cables and unscrew the mounting screws holding the logic board.
- Now, replace the old logic board with the new 661-8124 model.
- Reconnect all cables, secure the screws, and reattach the display panel.
- Finally, test the iMac to ensure the new logic board is functioning properly.
Maintenance Tips for Longevity
As a result of proper care, your iMac’s performance will remain top-notch:
- Clean regularly: Remove dust from vents and internal components to prevent overheating.
- Monitor temperatures: Use software to ensure the system stays within safe operating temperatures.
- Handle with care: When replacing or upgrading, avoid static discharge to protect sensitive components.
Troubleshooting Common Issues
If you face challenges with the new logic board, consider these solutions:
- No power: Double-check cable connections and verify proper installation.
- Display issues: Ensure the display cable is securely connected to the logic board.
- Overheating: Verify that the cooling system is functioning and clean out dust buildup.
Conclusion
In conclusion, the 3.5 GHz i7-4771 logic board for 27” iMac A1419 Late 2013 (661-8124) is an essential upgrade for maintaining and enhancing your system’s performance. With its powerful processor, advanced graphics, and robust design, it ensures your iMac runs efficiently for years to come. Proper installation and maintenance will maximize its lifespan, making it a worthwhile investment.


