IBM Aptiva 2159 Manual

Also see for Aptiva 2159: Hardware maintenance service

(continued)005 (continued)Go to Step 007.006Go 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 connectorsfrom the system unit.Notes:1. When removing adapter cards, be careful not to change any jumperor switch settings on the card.2. Do not remove the riser card. The system generates multiple errorcodes 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 No008Go 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 risercard.B3 = +5 V dcB5 = −5 V dcB7 = −12 V dcB9 = +12 V dc2-54