HP J3420B -HSC ATM/155 Installation Manual page 22

Installing the HP-HSC ATM/155 Adapter
Installation Steps
Step 8. If you are not installing the HP-HSC ATM/155 adapter in a Model 743i
Single Board Computer, go to step 9.
If you are installing the HP-HSC ATM/155 adapter in a Model 743i
sytem, upgrade (if necessary) the boot ROM on the 743i's CPU board.
NOTE Upgrade the boot ROM in your 743i Single Board Computer only if the
revision number of the existing boot ROM is lower than the revision
number of the boot ROM supplied with the ATM adapter. The revision
number is clearly marked on the boot ROM.
To replace the boot ROM in a Model 743i system, follow these steps:
a. Remove the boot ROM from its socket on the 743i system by using the
Figure 2-1 Removing the 743i Boot ROM from Socket
b. Align the new boot ROM in its socket at location U54, with the keyed
c. Carefully press the new boot ROM into its socket.
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IC removal tool, as shown in Figure 2-1 below. Note that the boot
ROM is located at location U54 (shown on the board).
Keyed Corner
corner matching the socket's keyed corner.
U54
Chapter 2