Mac Pro (Mid 2010) Symptom Charts — No Video 55
2010-08-31
6. Boot from known good and
compatible Mac OS X. Verify
video quality observed is OK.
Yes Video quality observed is OK.
Problem isolated to software.
Clean install the customer
hard drive with known good
compatible Mac OS X or use
the media supplied with the
computer.
No Move the video card into
PCIe slot #2 to determine if
backplane board PCIe slot #1
is defective. Retest.
If video quality OK in PCIe slot
#2, replace backplane board.
If still poor quality in PCIe slot
#2, replace video card.
M04
7. For testing, dual-processor
computers require only one
processor installed in socket A.
For dual- and single-processor
computers, reseat processor in
socket A. Verify video observed.
Yes Go to step 2.
No Go to step 8.
8. If dual-processor computer,
swap out processor in socket
A and retest. Verify video is
observed.
Yes Replace defective processor. M03
No Replace processor board. M03
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