iMac Intel 21.5" EMC 2389 GPU Card Replacement
Introdução
Vá para o passo 1Use this guide to replace the GPU card.
O que você precisa
Peças
Ferramentas
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Unplug your iMac's AC cord along with any peripheral devices.
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Lay your iMac face-down on a soft, clean surface as shown.
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Loosen the three Phillips screws securing the access door to the bottom edge of your iMac.
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Remove the access door.
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Gently slide the black plastic RAM pull tab out from the RAM slot.
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Pull the black plastic tab away from the bottom edge of the iMac to eject the module(s) on that side of the RAM bay.
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Ferramenta utilizada neste passo:Heavy-Duty Suction Cups (Pair)$14.95
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Stick a suction cup near each of the two top corners of the glass panel.
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If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.
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Remove the eight 8 mm T10 Torx screws securing the display to the outer case.
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Remove the following four screws:
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One 9.3 mm T10 Torx screw with a large head
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Three 9.3 mm T10 Torx screws with a normal sized head
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Lift the inner edge of the optical drive and maneuver its connector past the GPU frame attached to the logic board.
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Carefully pull the optical drive off its mounting pins on the right side of the outer case to gain clearance for disconnecting the optical drive cable.
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Allow the optical drive to hang down as you de-route the optical drive thermal sensor connector from behind the GPU heat sink.
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Remove the single 13 mm T10 Torx screw securing the optical drive fan to the outer case.
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In the proceeding steps, you will disconnect the following cables:
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SD Board and microphone
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Left/Right Speaker
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Wi-Fi Antenna
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Bluetooth/Ambient Light Sensor/Camera/Left Temperature Sensor, Hard Drive Temperature Sensor and Hard Drive Fan
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CPU Fan/Ambient Temperature and Power Button
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IR Sensor
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Remove the following four screws:
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One 9.3 mm T10 coarse-threaded screw
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One 25 mm T10 coarse-threaded screw
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Two 22 mm fine-threaded screws
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Pull the upper right and lower left corners of the power supply away from the rear case to dislodge the mounting posts attached to the power supply's corners.
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Carefully lift the power supply out of the outer case and rotate it to expose the cable lock as shown, minding the DC-out and AC-in cables still attaching it to the iMac.
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Disconnect the DC-out cable by depressing the locking mechanism on the connector while you pull the connector away from its socket on the power supply.
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Once the locking mechanism has cleared the socket, pull the DC-in connector away from the power supply.
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Remove the strip of tape securing the GPU thermal sensor cable to the logic board.
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Remove the four 6.5 mm T8 Torx screws securing the GPU heat sink to the GPU.
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It may be necessary to use a #1 screwdriver to hold the sockets on the GPU heat sink stationary as you loosen the T8 Torx screws.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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20 comentários
Hi everyone,
Which GPUs can you use as upgrades for this 2010 model? Mine has a Radeon 5670 512mb and I'd like something a bit more powerful...
Thanks!
lucky, i have a 256 mb card
Heh. I just replaced the 512mb 5670 card with the 256mb 4670 card.
Why, you might ask? Because of Mojave support. The 4670 is supported under Mojave but the 5670 is not…
One question:
i can put this GPU: NVIDIA GeForce GTX460M
on my iMac Mid 2011?
or i will have problems with the Drivers?
Wonderful guide! First time I opened a imac.
I need to replace the LCD cable connector on the motherboard. It is broken and it caused a short circuit on the motherboard. On the motherboard, underneath the grafic card, I've found a fried SMD inductance (L9000 on the motherboard) in the powerline of the grafic card. I restored the powerline with some solder leaving the inductance out. Should be no problem.
