Apple Mac Pro - Page 49

Mac Pro (Mid 2010) Symptom Charts — Memory Issues/Kernel Panic and Freezes 49
2010-08-31
Deep Dive
Check Result Action Code
1. Remove and reseat all DIMM’s.
If any memory diagnostic
LEDs are illuminated on the
processor board, refer to
Troubleshooting Memory
LEDs before proceeding.
Verify the computer starts
without issue.
Yes Reseating the DIMMs
appears to resolve issue.
Verify computer continues to
function without freezing or
kernel panic.
No Computer had kernel panic
or freeze during boot. Go to
step 2.
2. Disconnect all peripherals and
PCIe cards. Install known good
and compatible video card
(ensure the card goes into PCIe
slot #1 (16x), and has booster
power cable connected if
required)
Yes Suspect peripherals or PCIe
cards as cause. Reconnect one
at a time, verifying computer
operation at each stage
No Computer had kernel panic
or freeze during boot. Go to
step 2
3. Reset SMC and verify that unit
starts without issue.
Yes Corrupt SMC state causing
stability issues. Reset SMC has
resolved.
No Computer had kernel panic
or freeze during boot. Go to
step 3
4. Verify all fans are spinning and
adequate airow around the
computer.
Yes All fans are spinning, and
adequate airow. Go to step 4
No One or more fans are not
spinning. Go to Computer
Runs Slow with Fast/Failed
Fans.
5. Attempt to boot with original
install media or from an
external hard drive with
compatible OS X installed.
Verify the computer is able to
successfully boot to the Finder.
Yes Computer boots without
kernel panic or freeze using
external drive. Corrupt OS
installed or damaged internal
boot drive. Run ASD/Disk
Utility drive test and replace
hard drive if test fails.
Complete a Clean Install with
compatible Mac OS X.
H03
No Computer had kernel panic
or freeze during boot. Go to
step 5