- 2008 MAC PRO POWER SUPPLY REPLACEMENT HOW TO
- 2008 MAC PRO POWER SUPPLY REPLACEMENT INSTALL
- 2008 MAC PRO POWER SUPPLY REPLACEMENT FULL
“If that doesn’t work then try to remove one RAM memory and switch places and the method” If for some reason the above method does not work, the original forum poster does state the following possible workaround involving moving a RAM module to a different slot (if applicable): This MagSafe power button pressing solution was found on iFixIt forums and it worked for me, so if you’re in a similar scenario with an older MacBook Pro then try it out yourself. Sometimes simply plugging in the proper higher wattage power adapter will allow the MacBook Pro to boot. These older model year MacBook Pro computers use 85W power adapters, whereas the MacBook and MacBook Air of the same generation used 60W power adapters. Also, Check the Power Adapter Wattageįor what it’s worth, in some scenarios where the battery appears dead but is not actually (ie, the charge is long drained but the battery itself isn’t completely useless yet), then you may be able to successfully boot the MacBook Pro with a proper wattage MagSafe power adapter of 85W. With some other internal component replacements, sometimes simply plugging in the MagSafe adapter and holding the power button for 10 seconds is enough to cause the MacBook Pro to start. Powering Up a MacBook Pro After Replacing Battery, Logic Board, Hard Drive, RAM, etc tooĪpparently the same aforementioned scenario of the MacBook / MacBook Pro not starting up can also unfold when replacing other internal components on these older model year MacBook Pro (2006, 2007, 2008, 2009, 2010, 2011, etc), including replaced logic boards, internal hard drives, RAM, battery, and perhaps other hardware components too. Nonetheless, Snow Leopard still runs well!Īs you can see in the screenshot below, the “No Battery” indicator is visible, but the MacBook Pro is booted and working.Īnd indeed, this particular MacBook Pro has no physical battery installed as you can see the internals in this picture:
2008 MAC PRO POWER SUPPLY REPLACEMENT FULL
However, the above method of disconnecting and reconnecting MagSafe while holding the Power button was successful in starting up the Mac – with fans running at full speed and at reduced clock speed however. Once the battery was removed you can press the power button but nothing happens. I experienced this scenario on an old MacBook Pro 2010 model after removing a swollen battery.
2008 MAC PRO POWER SUPPLY REPLACEMENT INSTALL
The only way to stop the fans from running at full speed and to return the clock speed to regular performance is to install a new battery into the MacBook Pro. When the MacBook Pro does boot, the fans will be blasting at full speed for the entire time you are using the Mac ( resetting SMC or PRAM does not stop the fans running, only replacing the battery will).Īlso it appears that the MacBook Pro will reduce its own clock speed in this situation, thereby reducing performance. Release the Power button, then press the Power button as usual to power on the computer and boot the Mac.While still holding the Power button, connect the MagSafe power cable to the MacBook Pro and continue to hold the Power button for another 10 seconds.Hold down the Power button for 10 seconds and continue to hold it down.In this case, you can force the MacBook Pro to boot by following these steps: Then, when attempting to boot the Mac or pressing the start button, nothing happens. We are assuming the MacBook Pro has no battery installed in the computer, meaning there physically is no battery installed.
2008 MAC PRO POWER SUPPLY REPLACEMENT HOW TO
How to Boot MacBook Pro with No Battery Installed So let’s discuss how to boot an older MacBook Pro when there is no battery present at all. Of course if you happen to have a replacement battery then you can typically just replace the missing battery with a working battery and the MacBook Pro will boot, but that is not always an option. It turns out that some model year MacBook Pro computers will not boot with a simple power button press after the battery has been physically removed or disconnected. In this situation, if a battery is removed or totally dead and you attempt to start the MacBook Pro, nothing happens – there is no sound, no system boot, no startup chime, nothing.
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