Press Power Button.
Power Supply turns ON
Top Front Fan roars to full speed. Red LED near WiFi Card lights up. All 8 RAM Riser lights ON. No Logic Board Diagnosis lights on. (If I press the Diagnosis test button LEDs 2,7,8 and 9 light Up)
About 5 Seconds later the Power Supply goes to sleep and the computer boot fails to progress.
Blank monitor screen
Checked and tested PS, OK
Installed 8GB New RAM, No difference
Changed GPU, No difference
Tried a different HDD with ElCapitan installed, No difference.
Removed and reseated CPUs, No difference
Tried different CPUs, No difference
Has anyone else had similar symptoms and fixed the problem?
Thanks in advance.
Ian McGregor.
Australia.
Power Supply turns ON
Top Front Fan roars to full speed. Red LED near WiFi Card lights up. All 8 RAM Riser lights ON. No Logic Board Diagnosis lights on. (If I press the Diagnosis test button LEDs 2,7,8 and 9 light Up)
About 5 Seconds later the Power Supply goes to sleep and the computer boot fails to progress.
Blank monitor screen
Checked and tested PS, OK
Installed 8GB New RAM, No difference
Changed GPU, No difference
Tried a different HDD with ElCapitan installed, No difference.
Removed and reseated CPUs, No difference
Tried different CPUs, No difference
Has anyone else had similar symptoms and fixed the problem?
Thanks in advance.
Ian McGregor.
Australia.