Adaptec AHA-1740A Instruction Manual

adaptec

AHA-1740A/1742A

Instructions

for

Installing

EPROMs

Installing the BIOS and Firmware

EPROMs

Proceed with the following steps to install your new

BIOS and firmware EPROMs.

CAUTION

Turn off power to the system and all external de-

vices. Serious damage to your system unit and

options can occur if you leave the power on.

Adaptec recommends that you unplug your system

from the AC outlet.

1. Remove the cover of your EISA personal computer

to expose the expansion slot containing your

AHA-1740A/1742A adapter.

CAUTION

The AHA-1740A or AHA-1742A, like all electronic

equipment, is static sensitive. Discharge the static

electricity from your body by touching an un-

painted metal surface of your computer frame or

rear panel before handling the board.

2. Remove all cables from the host adapter.

3. Remove the screw that is securing the adapter’s

bracket to your EISA system frame and gently lift

the adapter board from the slot with a rocking, up-

ward motion.

4. Using an EPROM extraction tool, remove the BIOS

and firmware EPROMs using a gentle, rocking, up-

ward motion. Note the pin orientation of the

EPROMs and sockets. The BIOS EPROM is lo-

cated in position U47 and the firmware EPROM is

located in position U10.

CAUTION

Be certain you have the proper alignment of the

EPROM and socket before installing a new

EPROM. Damage to the EPROM may occur if it is

incorrectly inserted.

5. Insert the new EPROMs by aligning each EPROM

with it’s corresponding socket and using a gentle,

rocking, downward motion, taking care to avoid

bending the pins.

6. Firmly plug the adapter card back into its expansion

slot and use the screw you previously removed to

secure the adapter’s bracket to your EISA system

frame.

7. Plug in all previously removed cables.

8. Replace the system cover to prevent personal injury

before applying power to the system.

❐

adaptec •691 south milpitas blvd. •milpitas, california •95035

Stock No.: 510376-00 Rev A GM 1/93

Printed in Singapore

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