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MP 1,1-5,1 Mac pro 2010 can't boot RI511 led will flash and then the machine will automatically shut down
- Thread starter mr.jiang
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Looks like it is a processor diagnostic LED:
page 37
You might have a broken rivets on the north bridge heatsink causing your CPU to overheat:
forums.macrumors.com
page 37
You might have a broken rivets on the north bridge heatsink causing your CPU to overheat:
Red Diagnostic LED DSI510 and Mac Pro not starting - broken Northbridge heatsink rivet
Writing this thread on my Mac Mini because my 8 year old Mac Pro 4,1 (single CPU) is now out of order. My Mac Pro shows red LED DSI510 and is not starting anymore. No chime, but fans running, GPU and hard disks are powered. According to this manual (picture on page 32)...
forums.macrumors.com
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