我这样双xeon算能用了吗？

emylekao

# dmesg |grep "CPU"
CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2392.95-MHz 686-class CPU)
  Hyperthreading: 2 logical CPUs
Warning: Pentium 4 CPU: PSE disabled
CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2392.95-MHz 686-class CPU)
  Hyperthreading: 2 logical CPUs
FreeBSD/SMP: Multiprocessor motherboard: 4 CPUs
Warning: Pentium 4 CPU: PSE disabled
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
SMP: AP CPU #3 Launched!

可是这个Warning: Pentium 4 CPU: PSE disabled是什么意思？