Nortel Networks 100 Series Switch User Manual


 
Firmware Upgrade Instructions for the BayStack 100-series Hubs
6 893-00945-A
b. With the extraction tool in place, pull straight up on the PROM until it
disengages from its socket.
3. Install the new PROM.
a. Grasp the sides of the PROM between your thumb and forefinger.
b. Gently place the PROM into the socket at location U17 on the
motherboard, being sure to align the beveled corner of the PROM with
the beveled corner (a pointer is visible) on the PROM socket.
c. Push the PROM straight down until it seats into the socket.
4. Replace the cover on the hub.
Reverse the procedure in step 5 of “Accessing the PROM on the 100-series
Motherboard” on page 4.
CAUTION:
Be careful that the extraction tool you use does not bend
or put pressure on the chips adjacent to the PROM socket.
NOTE:
Do not force the PROM out of its socket. If the PROM is
difficult to remove, gently wiggle the PROM back and forth a few
times to loosen the teeth, being careful not to damage the PROM
socket. When the PROM is loosened, pull straight up on the PROM
using the IC extraction tool. The PROM should lift out of its socket
without damage to the socket or the PROM.
NOTE:
Do not force the PROM into its socket. If the PROM is
difficult to install, verify that the teeth of the PROM are straight
before inserting the PROM into the socket. Be careful not to damage
the PROM or the socket while pushing the PROM into place.