Specifications

Memory Replacement Instructions for the Network Processing Engine and Input/Output Controller 39
Installing New Boot ROMs
Installing New Boot ROMs
The following sections explain how to install a new boot ROM on the I/O controller and on the
NPE-175, NPE-200, NPE-225, or NPE-300.
Installing a New Boot ROM on the I/O Controller
To install a new Boot ROM on the I/O controller, complete the following steps:
Step 1 Remove the new boot ROM from its packaging.
Step 2 Align the new boot ROM with the U20 socket on the I/O controller, and note the notch at
the end of the socket and boot ROM. Match the notch at the end of the boot ROM with
the notch on the socket. If the boot-ROM notch is not aligned with the socket notch, the
boot ROM will be damaged when power is turned on.
Step 3 Applying pressure evenly, gently press the boot ROM pins into the holes in the
U20 socket. (See Figure 30.) Take care not to bend any pins.
Caution To prevent bent pins, push the boot ROM straight down into its socket, applying pressure
evenly.
Figure 30 Inserting the DIP-Type Boot ROM into the Socket
Step 4
When you have inserted the new boot ROM all the way into its socket, check around the
boot ROM for any bent pins. Pins bent underneath the boot ROM are difficult to see.
If any pins are bent, remove the boot ROM, use the needlenose pliers to straighten the
pins, and reinsert the boot ROM as described in Step 2 through Step 4. Note that a broken
pin means that the boot ROM is unusable, and you must order a new one.
If all pins are inserted correctly, and the boot ROM notch is aligned with the socket notch,
the boot ROM is properly installed.
This completes the steps for installing a new Boot ROM on the I/O controller. Proceed to the
“Replacing the Input/Output Controller” section on page 40.
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