Lenovo PC 300PL Technical Information Manual 6275, 6285 - Page 29

Riser Card, Type 6275/6862, Connectivity, Each ISA-expansion

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Chapter 2. System-Board Features Riser Card, Type 6275/6862 The riser card in your computer has two ISA slots and three PCI slots. The third PCI connector from the top shares a slot with the ISA connector directly below it. The other slots are dedicated to either the ISA or PCI bus. You can install only one adapter in the shared slot, for a total of four slots. The following illustration shows the expansion slots and connectors on the riser card. PCI PCI PCI Shared ISA ISA CD Audio SCSI Hard Drive LED Power (Back) Asset ID Connector Secondary IDE Connector Diskette Drive Connector Fan Connector 340-Pin Connector System Front Panel Connector Modem Wakeup Wake on LAN Primary IDE Connector (Back) Alert on LAN Each PCI-expansion connector is capable of driving one, low-power Schottky load. Each ISA-expansion connector is capable of driving two, low-power Schottky loads. The ISA bus is permanently set to the PCI bus speed divided by four. The PCI bus shares interrupts with the ISA bus. Free interrupts are automatically assigned to PCI devices during POST. If no interrupts are available for the PCI devices, an 18xx POST error message is generated. Connectivity Connections for attaching devices are provided on the back of the computer. The connectors are: USB (2) Mouse Keyboard Serial (2) Parallel Monitor Some models only: integrated Ethernet with an RJ-45 connector, or optional Token-Ring adapter with an RJ-45 connector and a D-shell connector Some models only: Integrated Crystal 4235 audio controller with line out, line in, and microphone connectors Chapter 2. System Board Features 17

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Chapter 2.
System-Board Features
Riser Card, Type 6275/6862
The riser card in your computer has two ISA slots and three PCI slots.
The third PCI connector from the
top shares a slot with the ISA connector directly
below
it.
The other slots are dedicated to either the ISA
or PCI bus.
You can install only one adapter in the shared slot, for a total of four slots.
The following illustration shows the expansion slots and connectors on the riser card.
Diskette Drive
Connector
Primary IDE
Connector
(Back)
Secondary IDE
Connector
System Front
Panel Connector
PCI
PCI
PCI
ISA
ISA
Wake on LAN
Asset ID Connector
SCSI Hard Drive LED
Modem
Wakeup
340-Pin
Connector
CD
Audio
Shared
Power
(Back)
Fan Connector
Alert on LAN
Each PCI-expansion connector is capable of driving one, low-power Schottky load.
Each ISA-expansion
connector is capable of driving two, low-power Schottky loads.
The ISA bus is permanently set to the PCI
bus speed divided by four.
The PCI bus shares interrupts with the ISA bus.
Free interrupts are automatically assigned to PCI devices
during POST.
If no interrupts are available for the PCI devices, an 18xx POST error message is
generated.
Connectivity
Connections for attaching devices are provided on the back of the computer.
The connectors are:
USB (2)
Mouse
Keyboard
Serial (2)
Parallel
Monitor
Some models only:
integrated Ethernet with an RJ-45 connector, or optional Token-Ring adapter with
an RJ-45 connector and a D-shell connector
Some models only:
Integrated Crystal 4235 audio controller with line out, line in, and microphone
connectors
Chapter 2.
System Board Features
17