Adding Pci Cards; Pci Bus Interrupts - Selecting Correct Pci Slot - Fujitsu Siemens Computers D1944 Technical Manual

Adding PCI cards

You can only upgrade the mainboard with a PCI card when you use the corresponding
i
riser card.
Technical data:
32 bit / 33 MHz PCI slots
5 V and 3.3 V supply voltage
3.3 V auxiliary voltage

PCI bus interrupts - Selecting correct PCI slot

To achieve optimum stability, performance and compatibility, avoid the multiple use of ISA
i
IRQs or PCI IRQ Lines (IRQ sharing). Should IRQ sharing be unavoidable, then all
involved devices and their drivers must support IRQ sharing.
PCI IRQ Lines connect AGP slots, PCI slots and onboard components to the interrupt controller. PCI
IRQ Lines are permanently wired on the mainboard.
Which ISA IRQs are assigned to the PCI IRQ Lines is normally automatically specified by the BIOS
(see description in "BIOS Setup").
Monofunctional expansions cards:
Standard AGP and PCI expansion cards require a maximum of one interrupt, which is called the PCI
interrupt INT A. Expansion cards that do not require an interrupt can be installed in any desired slot.
A26361-D1944-Z120-1-7419, edition 1
Add-on modules / Upgrading
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