AGMacBook: Difference between revisions
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*Not responding to lid closing. Sleep indicator not coming on, HD still spinning. | *Not responding to lid closing. Sleep indicator not coming on, HD still spinning. | ||
*Will force-shutdown, but turns on again immediately. Can force-shutdown by holding power key. | *Will force-shutdown, but turns on again immediately. Can force-shutdown by holding power key. | ||
===Stage 3 symptoms=== | |||
*Automatically turns back on on shutdown. This is only recurring symptom after jamming in the RAM. | |||
===Current status=== | ===Current status=== | ||
After I replaced the extra memory, noticing how hard it was to jam them in all the way. Maybe the memory wasn't seated well before? | After I replaced the extra memory, noticing how hard it was to jam them in all the way. Maybe the memory wasn't seated well before? | ||
| Line 17: | Line 19: | ||
*'C' during startup starts from DVD. | *'C' during startup starts from DVD. | ||
*Disk utility reports file system has no problems. | *Disk utility reports file system has no problems. | ||
* | *Powers on and off properly. | ||
==Steps to recovery== | ==Steps to recovery== | ||
;Read Apple article on no-power-on macs:http://support.apple.com/kb/ts1365 | ;Read Apple article on no-power-on macs:http://support.apple.com/kb/ts1365 | ||
| Line 28: | Line 29: | ||
;Attach an external monitor:No response. | ;Attach an external monitor:No response. | ||
;Try caps lock key:No light on key. | ;Try caps lock key:No light on key. | ||
;Attach external keyboard again, see if key combos like PRAM zap or Target Disk Mode work: | ;Attach external keyboard again, see if key combos like PRAM zap or Target Disk Mode work. | ||
;Change power settings:To fix the automatic turn-back-on, I told the SMC, using the System Preferences Energy Saver pane, to turn on automatically on Wednesday at 7AM, then shut down at 7:15AM. This put things straight, it seems, because now it shuts down and stays down until I ask it to turn on. | |||
==Next steps== | ==Next steps== | ||
;Apple Hardware Test:Computer reports last test on April 6, 2008, passed. We need the install disks for this particular model. http://support.apple.com/kb/HT2644 | ;Apple Hardware Test:Computer reports last test on April 6, 2008, passed. We need the install disks for this particular model. http://support.apple.com/kb/HT2644 | ||
Revision as of 21:18, 30 August 2010
Original problem
Our friend AG has a MacBook, ~2007, that didn't turn on. Battery didn't charge. Screen was black.
Stage 2 symptoms
After I removed the memory.
- Screen only flashes for a millisecond at power on, then stays black.
- Caps lock, num lock keys don't light.
- No power to ethernet port.
- Nothing on external video port.
- Not responding to lid closing. Sleep indicator not coming on, HD still spinning.
- Will force-shutdown, but turns on again immediately. Can force-shutdown by holding power key.
Stage 3 symptoms
- Automatically turns back on on shutdown. This is only recurring symptom after jamming in the RAM.
Current status
After I replaced the extra memory, noticing how hard it was to jam them in all the way. Maybe the memory wasn't seated well before?
- Startup chime.
- Goes to login panel.
- Caps key works.
- A bit slow while Finder and Safari (automatically) launch.
- 'C' during startup starts from DVD.
- Disk utility reports file system has no problems.
- Powers on and off properly.
Steps to recovery
- Read Apple article on no-power-on macs
- http://support.apple.com/kb/ts1365
- Reset PRAM
- not helping, since power button doesn't work.
- Attach external keyboard, press power
- Not working.
- Resetting SMC by detaching battery, detaching power, pressing power button for 5 s
- Nothing.
- Removing extra memory
- Yay! Well, something, since now the power button is responsive, but not the rest of the keyboard. Caps lock isn't working, FireWire Target Mode isn't. PRAM reset is now working, but not helping.
- Starting with Leopard install DVD
- Disk taken in, spun, but not much action. At least none on the screen
- Attach an external monitor
- No response.
- Try caps lock key
- No light on key.
- Attach external keyboard again, see if key combos like PRAM zap or Target Disk Mode work.
- Change power settings
- To fix the automatic turn-back-on, I told the SMC, using the System Preferences Energy Saver pane, to turn on automatically on Wednesday at 7AM, then shut down at 7:15AM. This put things straight, it seems, because now it shuts down and stays down until I ask it to turn on.
Next steps
- Apple Hardware Test
- Computer reports last test on April 6, 2008, passed. We need the install disks for this particular model. http://support.apple.com/kb/HT2644
- Jiggle cords
- Requires going further into innards.
