Fujitsu D1931 ユーザーズマニュアル

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Adding PCI Express cards 
 
24 - English 
A26361-D1931-Z120-1-7419, Edition 1
 
Adding PCI Express cards 
The PCI Express x16 slot is intended for graphics cards, and the PCI Express x1 slot for 
PCI Express x1 cards. 
Adding PCI cards 
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 
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To achieve optimum stability, performance and compatibility, avoid the multiple use of 
IRQ Lines (IRQ sharing). Should IRQ sharing be unavoidable, then all involved devices 
and their drivers must support IRQ sharing. 
 
IRQ Lines connect PCI/PCI Express slots and onboard components to the interrupt controller. IRQ 
Lines are permanently wired on the mainboard. 
Which IRQs are assigned to the IRQ Lines is normally automatically specified by the BIOS (see 
description in "BIOS Setup"). 
Monofunctional expansions cards: 
PCI/PCI Express 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.