$ /usr/platform/sun4u/sbin/prtdiag
System Configuration:  Sun Microsystems  sun4u SUNW,Ultra-Enterprise-10000
System clock frequency: 100 MHz
Memory size: 4096 Megabytes

========================= CPUs =========================

                    Run   Ecache   CPU    CPU
Brd  CPU   Module   MHz     MB    Impl.   Mask
---  ---  -------  -----  ------  ------  ----
 1     4     0      400     8.0   US-II    10.0
 1     5     1      400     8.0   US-II    10.0
 1     6     2      400     8.0   US-II    10.0
 1     7     3      400     8.0   US-II    10.0


========================= Memory =========================

           Memory Units: Size
           0: MB   1: MB   2: MB   3: MB
           -----   -----   -----   -----
Board 1     1024    1024    1024    1024