The failing component is the RIO, HSL, or 12X controller.

1. Do you have a location code for this FRU in the serviceable event view?
   • No: Continue with the next step.
   • Yes: Go to step 4.

2. Is the first half of word 7 of the reference code greater than or equal to 0680?
   • No: Continue with the next step.
   • Yes: This is a valid loop number and can be correlated to an adapter location in the server using the procedure Converting the loop number to RIO/HSL/12X port location labels, or see "Converting the loop number to RIO/HSL/12X port location labels" in the service guide for the server on which you are working. Record the location code and go to step 4.

3. Because the first four characters of word 7 are less than 0680, they represent the system bus number. Do you have access to a system configuration listing?
   • No: Contact your next level of support. This ends the procedure.
   • Yes: Use the system configuration listing to determine which HSL, RIO, or 12X loop number the system bus is connected to then determine the FRU location code using the tables in Converting the loop number to RIO/HSL/12X port location labels, or see "Converting the loop number to RIO/HSL/12X port location labels" in the service guide for the server on which you are working. Once you have the FRU's location, continue with the next step.

4. Use the following table to find the replacement FRU part number for the FRU location identified previously in this procedure.

   CCIN or FFC	Type and model	Part number	Description	Location code
   	9406-MMA, 9117-MMA	39J0792	RIO/HSL-2 adapter	Un-P1-Cx
   	9406-MMA, 9117-MMA	42R6849	GX DUAL-PORT 12X HCA	Un-P1-Cx
   	9406-MMA, 9117-MMA	42R7352	I/O backplane	Un-P1

This ends the procedure.