Chapter 5: Troubleshooting
Motherboard Verification
90
Motherboard Verification
Obtain a 300 Watt or greater ATX PC power
supply, or build a test fixture per instructions
Using
ATX power
supply?
Plug test fixture onto sense cable
of power harness.
No
Disconnect AC power.
Plug motherboard connector of
power harness into motherboard.
Plug motherboard
connector of ATX
supply into
motherboard power
connector.
Yes
Plug AC power into power
supply being used.
Push power button on front of
instrument.
No
Yes
Does operating
system boot?
Motherboard OK.
Do fans
turn on & does
motherboard beep
(@10 sec)?
A
Go to
Yes
Replace motherboardNo
See Figure 5-13
See Figure 5-14