Chosen Solution
I bought the logic board from ifixit and followed all the instructions from this guide iMac Intel 20" EMC 2133 and 2210 Logic Board Replacement In the end, I realize the logic board I bought contains fewer components than my imac’s logic board. http://imgur.com/wgFlUJL The top pic is my imac logic board, bottom is what I bought from ifixit Now I’m stuck. Help! I need another guide to transfer the rest of components of my logic board to the new logic board
OK, @sookyee . #1, it’s very rarely the logic board. Let’s try to figure out what the problem is before just throwing money at it. Try booting up and observe the diagnostic lights to the right of the RAM slots and tell me what you observe. To do that you need to remove the frame, here’s how: iMac Intel 20" EMC 2133 and 2210 Front Bezel Replacement LED 1 - Indicates that the trickle voltage from the power supply is detected by the main logic board. This LED will remain ON while the iMac is connected to the AC power. The LED will remain on even when the computer has been shut down or put to sleep. The LED will turn off only if the AC power is disconnected or the power supply is faulty. LED 2 - Indicates that the main logic board has detected proper power from the power supply when the computer is turned on. This LED will be ON when the computer is turned on and the power supply is working correctly. LED 3 - Indicates that the computer and the video card are communicating. This LED will be ON when the computer is communicating properly with the video card. If LEDs 1 and 2 are ON and you heard the startup sound, but LED 3 is OFF, then the video card might be installed incorrectly or need replacement. LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.
Hi Sook, From the photo it looks like you have exactly the same logic boards, but there are some additional components on your old board that are probably sold separately, thus it looks like the boards are not the same. IMO it is not a complicated task to move the extra parts to the new board, I can’t see any soldering required, just removing a few screws and re-attaching the parts to the exact same location on the new board. Worths giving it a try. If you don’t feel comfortable doing it by yourself, take both parts to a computer technician, they will probably do it for you in minutes. Good luck
