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Conditions to verify
Board is:
• Present
• Installed in the correct slot
• Well-seated
• Not visibly damaged
All fan and ribbon cables on the board are:
• Present
• Firmly connected in the correct connectors
• Not visibly damaged
Each CPU is:
• Present
• Installed in the correct socket
• The correct speed (CPU speeds must match)
• Well-seated
• Not visibly damaged
The CPU cooling unit is:
• Ready for efficient thermal transfer
• Well-aligned
Each fan is:
• Properly positioned (not backwards)
• Installed in the correct connector
• Not visibly damaged (fan, fan cable, cable connector, and
motherboard connector)
The power supply is:
• Present
• Correctly installed
• Not visibly damaged
Cable connectors are:
• Firmly connected
• Not visibly damaged
• Installed in the correct devices
T
ROUBLESHOOTING
Part and additional page references
Graphics board,
page 69
(Not pictured; model and appearance of board may
vary between systems)
CPU and CPU cooling assembly,
Fans,
page 107
Power supply,
page 113
145
page 102
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