Mac Pro (Mid 2010) Symptom Charts — No Video 53
2010-08-31
No Video
Unlikely cause: Power supply, fans, speaker, AirPort card, Bluetooth card
Quick Check
Symptoms Quick Check
No Video
• No power perceived
• No video
• Dim video
1. To prevent replacing graphics cards unnecessarily,
refer to http://support.apple.com/kb/HT4279.
Note that graphics cards have three ports.
However, if using more than one Mini Display-
Port to Single-Link DVI adapter, only two displays
are supported across the three ports. (Three
displays are supported if using Mini Display-Port
to Dual-Link DVI adapters or Mini Display-Port to
VGA adapters.)
2. Reseat all DIMMs. Refer to Memory Diagnostic
LEDs.
3. Attach a known good and compatible DVI or
Mini-DP monitor to computer’s video card. Verify
video cables and connectors are free from defects
(including bent pins). Verify power booster
cable(s) are secured to the video card.
4. Power OFF/ON the display.
5. Verify the video card is supported in this
computer. Previous model Mac Pro video cards
may not be compatible. Cross reference the EEE
Code and GSX part number.
6. Reset RTC.
7. Conrm at least one known good and compatible
memory DIMM is installed in the computer.
8. After power ON, verify front panel power/sleep
LED illuminated and is not ashing any error
sequences indicating a memory failure. Caps Lock
LED illuminates when CapsLock key is pressed.
9. Verify the computer is alive by listening for the
drive booting sounds. If not detected go to
Power, but No Boot Quick Check.
10. Remove non essential peripheral cards
11. Reseat video card (and power boost cable(s) if
required) in the correct PCIe slot
12. Remove onboard backup battery.
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