ATTO Technology Celerity FC-42XS Troubleshooting Manual page 2

The host adapter may be improperly seated. Power down the computer and
reseat the host adapter.
Try putting the host adapter in a different PCI slot.
Verify that the latest version of the computer BIOS is installed. Use caution
when updating the computer's BIOS. A mistake could leave the system in an
unusable state.
Remove any non-vital PCI cards from the system to determine if there is a PCI
port conflict.
Disconnect any Fibre Channel devices from the host adapter and reboot the
computer. If this resolves the issue, investigate the Fibre cable, SFP and Fibre
target devices as described in the section below.
If the computer still does not boot, try installing the host adapter in a different
computer. If the host adapter works in the new computer, try updating the flash
on the host adapter as described in the "Installation and Operations" manual.
Then try it again in the original computer.
o If it still fails, report this as a possible interoperability issue between the
host adapter and the computer.
o If the problem follows the host adapter, replace it with a new adapter.
The computer freezes when the ATTO Banner is displayed during the system
BIOS scan.
Disconnect all devices from the Fibre card and reboot the system.
If the system still freezes:
Remove any non-vital PCI cards from the system to determine if there is a PCI
port conflict.
Remove the Celerity host adapter and test it in a different computer (not the
same model). If the card works properly, enter the ATTO CelerityFC Utility during
the system BIOS scan by hitting Control-F when prompted. Enter the host
adapter configuration menu and disable the BIOS (note: this will need to be done
for each channel). There may be a BIOS conflict between the ATTO host adapter
and the original computer. Place the host adapter back into the original machine
and reboot.
If this resolves the issue, report this as a BIOS conflict. Note that you can
continue to operate. Disabling the BIOS will only prevent the computer
from booting from an external drive connected to the host adapter.
If the computer still hangs, replace the host adapter with a new one.
If the system no longer freezes after disconnecting the Fibre devices:
Check the Fibre devices to see what type of connection mode and data rate they
are set to. Some devices use "auto" for these settings. Manually setting the
speed (1gig, 2gig, 4gig) may allow for proper negotiation between the devices.
You may also want to force these settings on the card. This can be done by
using the ATTO Configuration Tool or entering into the ATTO CelerityFC Utility
(CTRL-F).
Page 2 of 9 Atto Technology, Inc. April 9,2007