Adaptec AVA1515 Installation Guide - Page 8

s If your system has multiple host adapters, did you assign each host adapter a unique interrupt channel, IRQ channel, or port address? If you need replacement components, such as a fuse, jumper shunt, or terminator, see your dealer. 8 Jumper Block Settings The AVA-1515 jumper block settings are silkscreened on the board and are used to configure user-selectable options. In the diagram on page 1, the black bar covering both pins represents an installed jumper. This table shows all the possible settings on Jumper blocks J1 and J3. AS1 AS0 BIOS Address BEN Host Adapter BIOS Off Off C800h-CBFFFh On Enabled* Off On On Off CC00h-CFFFFh Off D800h-DBFFFh ALT1 Disabled AT Port Address On On DC00h-DFFFFh* On Pin Pair2 Interrupt Channel3 Off I09 Interrupt 094 SP 140h-15Fh 340h-35Fh* SCSI Parity Check I10 Interrupt 10 On Disabled I11 Interrupt 11* Off Enabled* I12 IC1 IC0 Interrupt 12 IRQ Channel3 DN SCSI Disconnection On Enabled* Off Off IRQ 09 Off Disabled Off On On Off On On IRQ 10 IRQ 11* IRQ 12 On = Jumper Off = No Jumper * = Default 1 An extra jumper is provided if you want to change the port address. If you change this option, disable the BIOS, because the host adapter BIOS supports booting only from the default port address range. 2 Place jumper on only one interrupt channel pin pair. 3 Interrupt and IRQ channels must be set to the same number. For example, if you use interrupt 12, use IRQ 12. 4 Not recommended with Windows 3.x. 7