Adaptec AHA-1540B Installation Guide download pdf (Page 10)

If you have multiple AHA-1540CP/1542CP host

adapters in your computer, use the SCSI Disk Utili-

ties to determine which host adapter you are

configuring.

Configure/View Host Adapter Settings

The Configuration screen displays these options:

Host Adapter Interrupt (IRQ) Channel, Host

Adapter DMA Channel, Host Adapter SCSI ID, SCSI

Parity Checking, DMA Transfer Rate, and Host

Adapter SCSI Termination. Highlight an option and

press Enter to select the value.

Select SCSI Device Configuration to modify the fol-

lowing options for each device on the SCSI bus:

Enable Synchronous Negotiation, Enable Fast SCSI,

Enable Disconnection, Send Start Unit Command,

and Include in BIOS Scan. You can set these options

individually for each device on the SCSI bus.

Select Advanced Configuration Options to modify

the remaining advanced options as listed on page 3.

Do not change these options unless you fully under-

stand what they mean.

SCSI Disk Utilities

Select SCSI Disk Utilities from the Main menu to

view a list of installed SCSI devices. When you select

a device, the Utilities menu appears.

Format Disk

runs the Adaptec SCSI low-level for-

mat utility. Verify Disk Media scans the selected

device’s media for defects. If it finds bad blocks, it

prompts you to reassign them.

Host Adapter Diagnostics

The Host Adapter Diagnostics option allows you to

perform a Bus Master DMA test on your PC’s mem-

ory. Not all PC systems are fully ISA compatible and

properly support Bus Master DMA transfers-

which are necessary for optimized performance

under multitasking operating systems like OS/2,

Windows 95, and NetWare.

The diagnostic program performs a memory transfer

test and then repeats the process. If the test fails, try

changing the DMA transfer rate to a lower setting in

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Adaptec AHA-1540B Installation Guide Page 10