IBM Aptiva Series Hardware Maintenance

2-38
005 - DOES THE SYSTEM UNIT WORK CORRECTLY BY ITSELF?
(YES, READ AHEAD. NO, GO TO STEP 019.)
− 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 ISA slots and
A1, B2, B5 on the PCI slots of the riser card.
ISA Slots
PCI Slots
B3 = +5 V dc A1 = -12 Vdc
B5 = -5 V dc B2 = +12 Vdc
B7 = -12 V dc B5 = +5 Vdc
B9 = +12 V dc
Figure 2- 5 Riser Card Voltage Testing Points
006 - ARE THE VOLTAGES CORRECT? (YES, GO TO STEP 007.
NO, GO TO STEP 019)

IBM Aptiva Series Specifications

General

Expansion Slots	ISA, PCI
CPU	Intel Pentium
Operating System	Windows 95
Sound	Integrated Audio
Optical Drive	CD-ROM
Ports	Serial, Parallel, USB