iMac (21.5-inch, Late 2009) Symptom Charts — Mass Storage 59
2010-11-18
7. Test with known-good hard
drive. Verify if system boots
successfully and Disk Utility
“Verify” function reports no
errors.
Yes Reinstall user’s hard drive, go
to step 8.
No SATA cable veried or
replaced and known-good
hard drive installed. Replace
logic board.
8. Reboot computer. Verify if
system boots successfully and
that Disk Utility “Verify” function
reports no errors.
Yes Issue resolved.
No User’s hard drive appears to
be defective. Go to step 9.
9. Replace user’s hard drive. Verify
if drive formats correctly with a
GUID partition map and installs
Mac OS without errors.
Yes Issue resolved by replacing
user’s hard drive.
H03
No SATA cable veried or
replaced and new hard drive
did not resolve issue. Replace
logic board.
M19
Hard Drive Noisy
Unlikely cause: LCD panel, logic board, power supply, speakers, camera, microphone
Quick Check
Symptoms Quick Check
Hard Drive Noisy
• Noise during start up
• Noise during operation
• Noise when drive is copying or
saving data
1. Boot from Install DVD. Use Disk Utility to verify
S.M.A.R.T. status of hard drive.
2. Use Disk Utility to repair disk.
3. Determine if noise is comparable to another
machine of the same model.
Deep Dive
Check Result Action Code
1. Boot from the Install DVD and
run Disk Utility. Verify if user
hard drive is available for Disk
Utility to repair.
Yes Go to step 2.
No
Go to Hard Drive Not
Recognized symptom ow.
2. Run Disk Utility ‘Repair Disk’
function and verify if it
completes successfully.
Yes Go to step 3.
No Go to step 4.
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