An administrator has ordered a new server and setup a dedicated RAID 1 array for the application database. While troubleshooting with performance monitoring tools， the administrator is receiving lowerread/write speeds than expected. 
Which of the following would be the MOST likely cause for the lower performance？（）

A. The BIOS needs to be upgraded.
B. The administrator did not add the right amount of memory.
C. There is a cooling issue with the server.
D. The administrator did not order high enough RPM drives.