CPU Utilization

[gushim]

Dear Kind friends,

I need a help or an opinion, why my server HP Pro DL380 G7 (System:Hardware: Intel64 Family 6 Model 44 Stepping 2 AT/AT COMPATIBLE -
Software: Windows Version 6.1 (Build 7600 Multiprocessor Free)) not using all CPU. On our cacti graph CPU utilization work on even CPU (CPU 0, 2, 4, 6 until 22) but on odd CPU not too many usage (almost 0% usage).

This server running OS windows server 2008 with MSSQL for navision.

Is that normal CPU utlization run on even CPU not odd CPU? or other configuration on our server that miss configuration?

Really appreciate for answer and suggestion

Regards,