Adaptec 3940UW User's Guide Page 23

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Installing the Host Adapter and SCSI Devices
AHA-3940U/3940UW/3940UWD User’s Guide
Stock Number: 511041-00, Rev. B Page: 2-3
Print Spec Number: 494569-00
Current Date: 2/14/97 ECN Date: 2/17/97
Inserting the Host Adapter in a PCI Slot
WARNING:
Be sure the power is turned
OFF
before you con-
tinue. Ground yourself by touching an unpainted surface on
the computer chassis before you open the computer case.
1
Remove the cover from the computer case.
2
Carefully remove the host adapter from the antistatic bag. If
you need to set the adapter down, put it on top of the bag.
Caution:
Keep the host adapter in its antistatic bag
until you are ready to install it. Before you pick up the
adapter, ground yourself by touching an unpainted
surface on the computer chassis. Even a little static
electricity can destroy a host adapter component!
3
Find an unused 5-volt PCI bus expansion slot that supports
bus mastering. Make sure this slot is unobstructed.
Some computers have both bus master and non-bus master
PCI slots. Read your documentation to find out which kind
1
50-pin on AHA-3940U, 68-pin on AHA-3940UW/3940UWD only.
2
See Appendix A,
Multiple Computer Configuration
.
3
68-pin on AHA-3940UWD only.
AHA-3940U AHA-3940UW AHA-3940UWD
Description
J1 J1 J1 Internal SCSI Connector—Channel A
1
J2 J2 J2 Internal SCSI Connector—Channel B
1
J3 J3 J3 Multiple computer termination jumper,
Channel B
2
J4 J4 J4 External LED Connector
J5 J5 J7 External SCSI Connector—Channel A
1
- - J5 External SCSI Connector—Channel B
3
J6 J6 J6 Termination Jumper—Channel A
U6 U8 U8 AIC-7880 Controller—Channel A
U8 U10 U10 AIC-7880 Controller—Channel B
U10 U12 U12 PCI-to-PCI Bridge
U11 U13 U13 SEEPROM
U12 U14 U14 BIOS ROM
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