Removal/Replacement of Card Components
Replaceable card components are socketedto facilitate their removal and replacement.
PROM and Termlnation SIPS
CAUTION | Observe antistatic precautions when handling thesecomponents. When |
| removed from the board, thesecomponentsshould be placed in antistatic |
| containers (such asconductive box 15404929 with antistatic foam insert |
| 92112794). Minimize touching the connector pins. |
It maybe necessaryto remove ProgrammableRead Only Memory (PROM) devicesand termination resistors for the following reasons:
nThe components may be faulty.
H PROMS must be replaced when upgrading to newerversions.
Note | The PROM firmware version is displayed during systemboot and can |
| also be determined from the,scsipbadiagnostic. |
To remove these components, proceed asfollows:
1.Remove the card from the hostcomputer asdescribed earlier in thii chapter.
2.Use a “chipextractor” or similar tool to gently pry and remove eachcomponent from its socket.
CAUTION | Excessiveprying and pressure can damagethe component or its socket. |
| Use care during removal. |