IBM Power Systems 775 Manual page 321

Figure 5-2 Original QCM layout
Figure 5-3 on page 308 shows that a non-compute QCM0 use for GPFS fails. The QCM0
functionality is moved to QCM1, QCM0 is redefined as a compute QCM, and resides in the
defective A+ resource region.
307
Chapter 5. Maintenance and serviceability