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Mac mini Model A1176 PRAM Battery Replacement

Introducción

The time and date, as well as other settings, are kept by the PRAM battery when your machine is off.

Qué necesitas

  1. Mac mini Model A1176 PRAM Battery Replacement, Top Housing: paso 1, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement, Top Housing: paso 1, imagen 2 de 2

    • Power down your Mac mini, disconnect all of the cables, and flip it over.

    • Insert the Jimmy into the crack between the aluminum top housing and the plastic lower housing.

    • The Jimmy should reach a stop about 3/8" down.

    Traducir

  2. Mac mini Model A1176 PRAM Battery Replacement: paso 2, imagen 1 de 3 Mac mini Model A1176 PRAM Battery Replacement: paso 2, imagen 2 de 3 Mac mini Model A1176 PRAM Battery Replacement: paso 2, imagen 3 de 3

    • Gently bend the Jimmy outwards to pry the crack open a little larger and lift the lower housing up a small amount.

    • There are several plastic clips on the lower housing that fit into a channel in the aluminum top housing. Your goal is to use the Jimmy to push these clips inward enough to free them from the channel, while gently pulling up on the lower housing.

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  3. Mac mini Model A1176 PRAM Battery Replacement: paso 3, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 3, imagen 2 de 2

    • Once you have the first side free, rotate the Mac mini and start prying up on the front edge.

    • Use the same prying motion to both bend the clips inward and lift the lower housing up out of the top housing.

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  4. Mac mini Model A1176 PRAM Battery Replacement: paso 4, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 4, imagen 2 de 2

    • You may need to move the Jimmy along the edge to pry up all of the clips. Be patient and do a little bit at a time.

    Traducir

  5. Mac mini Model A1176 PRAM Battery Replacement: paso 5, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 5, imagen 2 de 2

    • Keep working around the perimeter, freeing the clips along the final edge.

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  6. Mac mini Model A1176 PRAM Battery Replacement: paso 6, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 6, imagen 2 de 2

    • Flip the Mac mini back over and lift the top housing off of the lower housing.

    Traducir

  8. Mac mini Model A1176 PRAM Battery Replacement, Internal Frame: paso 7, imagen 1 de 3 Mac mini Model A1176 PRAM Battery Replacement, Internal Frame: paso 7, imagen 2 de 3 Mac mini Model A1176 PRAM Battery Replacement, Internal Frame: paso 7, imagen 3 de 3

    • Later in this guide you will remove several recessed Phillips screws. Bit drivers are generally too large to fit in the recesses, so be sure to have a thin shafted Phillips screwdriver on hand.

    • First remove the AirPort antenna (the larger of the two), located near the power button.

    • Slightly squeeze the two retaining arms toward each other and lift the AirPort antenna off its post.

    • Squeezing the two posts excessively will surely break them off the internal frame. Work delicately.

    • During reinstallation, you will have to slightly squeeze the two posts together so they fit into the openings on the AirPort antenna board.

    Traducir

  9. Mac mini Model A1176 PRAM Battery Replacement: paso 8, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 8, imagen 2 de 2

    • Use the tip of a spudger to slightly lift the left side of the ZIF cable lock up from its socket.

    • The ZIF cable lock will lift about 1 mm and stop. Do not try to completely remove the ZIF cable lock.

    Traducir

  10. Mac mini Model A1176 PRAM Battery Replacement: paso 9, imagen 1 de 1

    • Lift the audio board ribbon cable up out of its socket.

    • If it refuses to lift from its socket, the ZIF cable lock is not fully released. Make sure it is evenly lifted about 1 mm from the socket on the interconnect board.

    Traducir

  11. Mac mini Model A1176 PRAM Battery Replacement: paso 10, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 10, imagen 2 de 2
    Herramienta utilizada en este paso:
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    • Rotate the mini so that the SuperDrive slot loading mechanism is facing you.

    • Use a pair of tweezers to lift the hard drive thermal sensor cable connector up off its socket on the logic board.

    • Use tweezers to grab the connector (as seen in the picture), not the wires.

    • The connector is located under the optical drive opening, next to the PRAM battery.

    Traducir

  12. Mac mini Model A1176 PRAM Battery Replacement: paso 11, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 11, imagen 2 de 2

    • In the next few steps, you will remove the four Phillips screws securing the internal frame to the bottom case. Included in each step is an overview picture showing the general location and a closeup showing the actual screw.

    • Remove the recessed Phillips screw near the power button securing the internal frame to the bottom housing.

    Traducir

  13. Mac mini Model A1176 PRAM Battery Replacement: paso 12, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 12, imagen 2 de 2

    • Remove the recessed Phillips screw near the sleep light securing the internal frame to the bottom housing.

    • This screw is the longest of the four screws securing the internal frame to the bottom case.

    Traducir

  14. Mac mini Model A1176 PRAM Battery Replacement: paso 13, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 13, imagen 2 de 2

    • Remove the Phillips screw from the internal frame near the Bluetooth antenna.

    Traducir

  15. Mac mini Model A1176 PRAM Battery Replacement: paso 14, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 14, imagen 2 de 2

    • Remove the Phillips screw near the audio ports securing the internal frame to the bottom case.

    Traducir

  16. Mac mini Model A1176 PRAM Battery Replacement: paso 15, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement: paso 15, imagen 2 de 2

    • Gently lift the internal frame up from the bottom housing, minding the AirPort antenna and any other cables that may get caught.

    • It may be necessary to pull up near the interconnect board to separate it from the logic board.

    Traducir

  17. Mac mini Model A1176 PRAM Battery Replacement, PRAM Battery: paso 16, imagen 1 de 2 Mac mini Model A1176 PRAM Battery Replacement, PRAM Battery: paso 16, imagen 2 de 2

    • Push the PRAM battery toward the center of the logic board and pull it up out of its holder. You'll have to push the battery in further than you'd expect in order to get it to pop free.

    • Don't bend the metal finger too much or it will break off, requiring a new logic board.

    • When inserting the new battery, make sure the side with writing along the edges faces the black plastic holder. You should also insure that the metal connectors make contact with the battery (you can bend them forward if they do not).

    Traducir
Conclusión

To reassemble your device, follow these instructions in reverse order.

43 personas más completaron esta guía.

3 comentarios

The battery in question for this model of Mac mini (and many other Macs and PCs) is a CR2032 lithium 3V.

Jake Errs - Contestar

I used this guide, to replace the two 256mb ram cards with the max. two 1gb cards, because of the great photos...much better than a video. But if I didn't have to upgrade the memory, all I would've done is remove the airport antenna, the frame screws and the thermal sensor cable and lift the drive up enough to clear the battery. And I did replace the CR2032 battery while I was at it.

Thanks Walter, good job!

lamarhavard - Contestar

Im Replace Battery rasembli a n Black Screen how to fix? Sorry mi english is too bad

Nicolás Garcia Galván - Contestar

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