IBM 7026-H80 - RS/6000 - 256 MB RAM - Diskette Drive

8. Remove the screws from the four backplane connectors (V/S COMM, RIO1&2,
and JTAG) at the rear of the backplane assembly.
9. Remove the screws from the backplane assembly and remove the backplane
assembly.
Replacement
Replace in reverse order.
446 Service Guide