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If your battery is dead, the computer will run fine off the power adapter, but will turn off when unplugged. Select your model for logic board options: Core Duo, Core 2 Duo (Late 2006), Core 2 Duo (Mid 2007), Santa Rosa, Penryn, or Early/Mid 2009.Īs soon as you unplug the computer from a power source, it shuts off. Be sure to read the part description to ensure you are purchasing the correct logic board for your machine. The 2 GHz Core 2 Duo logic board has 2 options: Energy Star and non-Energy Star. For example, the 1.83 GHz Core Duo logic board has 2 options: 3-wall or 4-wall heat sink connectors. There are some variations within specific processor speeds of MacBook logic boards. We carry logic boards for every MacBook model. If replacing the DC-in board and battery doesn't fix your problem, then you need a replacement ( Core Duoor Core 2 Duo) logic board. Compatible power adapters are IF113-046 and IF113-045. If you have the same problem with another power adapter, your problem is most likely the logic board. The easiest way to test this is to borrow either a battery or power adapter to test in your machine. If your battery is too low, it will be difficult to diagnose a bad power adapter. If your power adapter is bad, the computer will run off a battery, but it won't charge. If this is the case, you must replace ( Core Duo or Core 2 Duo) the DC-in board.
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It may or may not run on the battery and the light on the power adapter will not light up at all (some power adapters do not have lights, so this may not apply to your computer). If your DC-in board is bad, you will not be able to start your computer when it's plugged into the wall. If none of these work, you may have a bad logic board. If that doesn't work, try one chip at a time to see if one of the chips prevents the machine from booting. If you have two chips, first reseat them and try again. First, access ( Core Duo or Core 2 Duo) the RAM slots and ensure you have RAM installed. Either you have insufficient RAM to boot, or the RAM you do have is faulty. If your computer beeps three times, there is a RAM issue. The MacBook replaces the iBook, with a Intel processor, magnetic Magsafe power connector, integrated iSight camera, and 13.3" widescreen display. My screen looks black, but I can see faint graphics on it