Ally, lets start off with what Apple suggest :"
1. Reset SMC and Clear PRAM to set default startup device to internal hard disk drive (HDD).
Yes
User hard drive bootable, issue resolved default settings.
No
Customer system not starting up, go to step 2
2. Is system indicating a memory error with repeated sleep LED 1 or 3 flash sequence and beep tones if sound is enabled?
Yes
Troubleshoot memory issues, go to step 3
No
Continue with startup sequence verification go to step 4
3. Reseat customer memory and/or swap in known good memory to isolate bad memory and replace defective parts.
Yes
Customer memory defective and replaced. Continue to verify startup process. Go to
step 4
No
Should known-good memory fail in one or more slots, replace logic board.
4. Hold the Alt (Option) key during startup and verify there is a bootable hard drive shown in Startup Manager. Choose customer hard drive. Does start up from this drive work?
Yes
System starting up from customer hard drive. Startup issue resolved
No
Customer hard drive not present or does not start up from this drive. Continue to
find bootable device. Go to step 5
5. Insert product OS install disc in optical drive. Install disc is bootable and should be
present in Startup Manager. Can system start up from OS install disc?
Yes
Starts up from optical drive - customer hard drive not yet bootable, go to step 8
No
Computer has no internal bootable devices. Test external startup devices, go
to step 6
6. Boot from a known-good bootable copy of product OS on a USB drive or network
server to start up and verify internal mass storage devices are available using System
Profiler and Disk Utility.
Yes
System started up from external device and reports data regarding internal SATA
devices. Go to step 7
No
No startup devices available Replace logic board" hope this helps, good luck.
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7 Comments
Can yo give us the last three digits of your serial number so we can correctly identify which model.
by Dan
What does the charger LED show (Orange or Green)? What does the battery tester on the battery show (how many green dots)? Do you have a second Battery?
by Dan
Hi Dan
Thanks for replying ...serial number worn off at back and can't put my hand on the receipt. LED shows orange. No lights on battery.. Unfortunately I don't have another battery.
by Ally
led has now gone green, but its still not powering up.
by Ally
Ally, it would really help if you give us the last three digits of your serial number. That way we can correctly identify which model.
by oldturkey03
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