IBM Aptiva 2159, Техническое обслуживание оборудования

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(continued)
005 (continued)
Go to Step 007.
006
Go to Step 011 on page 2-55.
007
(From step 005)
– Power-off the system unit.
– Disconnect the riser card and any adapter card cables or connectors
from the system unit.
Notes:
1. When removing adapter cards, be careful not to change any jumper
or switch settings on the card.
2. Do not remove the riser card. The system generates multiple error
codes when the riser card is removed and the system is powered on.
– Power-on the system unit.
DOES THE SYSTEM UNIT WORK CORRECTLY BY ITSELF?
Yes No
008
Go to “Start” on page 2-2.
009
– Power-off the system unit.
– Reconnect (reseat) the riser card.
– Do not install any adapter cards on the riser card.
– Power-on the system unit.
– Check the voltages at pins B3, B5, B7, and B9 on the top of the riser
card.
B3 =
+
5 V dc
B5 =
−
5 V dc
B7 =
−
12 V dc
B9 =
+
12 V dc
2-54
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