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Apple Computing Products:
macOS - Desktop Hardware
Plleeassee Need Help Now -cpu Upgrade Gone Bad!
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<blockquote data-quote="dtravis7" data-source="post: 529652" data-attributes="member: 8287"><p>There should be a small button on the motherboard very close to the PRAM battery. Press it and hold it for 5 seconds. </p><p></p><p>It's now called the PMU Reset. Here is some info on what to do. Let us know if this works.</p><p></p><p></p><p></p><p>Resetting the PMU Chip Procedure</p><p></p><p>1. Disconnect the power cord and check the battery in the battery holder (BT1). The battery should read 3.3 V to 3.7 V. If the battery is bad, replace the battery, wait ten seconds, and then reset the PMU (refer to the next step). If the battery is good, go to the next step.</p><p></p><p>2. Press the PMU reset switch (S1) once on the logic board. Do not press the PMU reset switch a second time because it could stop the PMU chip from responding.</p><p></p><p>3. Wait ten seconds before connecting the power cord and turning the computer on. If the computer turns on, go to the next step. If the computer does not turn on, there is something else wrong with the computer.</p></blockquote><p></p>
[QUOTE="dtravis7, post: 529652, member: 8287"] There should be a small button on the motherboard very close to the PRAM battery. Press it and hold it for 5 seconds. It's now called the PMU Reset. Here is some info on what to do. Let us know if this works. Resetting the PMU Chip Procedure 1. Disconnect the power cord and check the battery in the battery holder (BT1). The battery should read 3.3 V to 3.7 V. If the battery is bad, replace the battery, wait ten seconds, and then reset the PMU (refer to the next step). If the battery is good, go to the next step. 2. Press the PMU reset switch (S1) once on the logic board. Do not press the PMU reset switch a second time because it could stop the PMU chip from responding. 3. Wait ten seconds before connecting the power cord and turning the computer on. If the computer turns on, go to the next step. If the computer does not turn on, there is something else wrong with the computer. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Plleeassee Need Help Now -cpu Upgrade Gone Bad!
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