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Current System
Suspect Component
Operation
POST
• Display
• Motherboard
• Peripheral
Boot Time
Boot Media
(HDD, LAN)
System State
Power LED
Stopped Prior to
ON
Boot
ON
Disk Activity
Corrective Action
LED
Flashing
No Display:
1. Check for power to
(1/Sec)
display if no display
2. Check cable
connection between
Motherboard and
display
3. Check for properly
functioning display
4. Replace Motherboard
Display Working:
1. Use display to
determine failure
point via onscreen
message and BIOS
Setup
OFF
HDD is Boot Device:
1. Check HDD status in
BIOS Setup
2. Check connections
between HDD and
Motherboard
3. Replace or re‐image
HDD
4. Replace Motherboard
LAN is Boot Device:
1. Check for LAN link
and activity LEDs on
the Back Panel
2. Check LAN cable
3. Replace Motherboard
Diagnostics
3
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