Apple Mac Pro - Page 54

Mac Pro (Mid 2010) Symptom Charts — No Video 54
2010-08-31
Deep Dive
Check Result Action Code
1. Disconnect all internal drives.
Attach a known good display
to the video card. Power ON
the computer and verify video
is observed on the display.
Yes Video observed. Go to step 2.
No No video observed. Go to
step 3.
2. Verify the video quality
observed is OK
Yes Video quality OK. Go to step 5.
No Video has poor quality, e.g.
dim, distorted, etc. Go to step
4.
3. Reset SMC and PRAM. Reseat
memory, processor tray, video
card. Verify video is observed.
Yes Video observed. Go to step 2.
No Move the video card into
PCIe slot #2 to determine if
backplane board PCIe slot #1
is defective. Retest.
If video observed in PCIe slot
#2, replace backplane board.
If no video observed in PCIe
slot#2, replace video card.
Alternate: Go to step 7.
M03
4. Reset SMC and PRAM. Reseat
memory, processor tray, video
card. Verify video quality
observed is OK.
Yes Go to step 5.
No Replace video card. Alternate:
Go to step 7.
M03
5. Reconnect an internal boot
drive. Allow the computer to
boot (video software drivers
will load). Verify video quality
is OK
Yes Video quality observed is
OK. Problem maybe with
the customer display, or the
customer display may not be
compatible.
No Video quality problem
evident after booting. Verify
video card fan operating,
and is not clogged with dust
preventing adequate cooling.
Go to step 6.