Has this ever happened to you? You open the
System Properties dialog box and notice that the processor speed
reported in the Computer section on the General tab is slower than
the actual speed.
If so, don't worry. One of the adjustments made
to the operating system from a January 2002 patch configures
Windows XP to use the currentspeed value reported by the CPU rather
than the maxspeed value. Microsoft made this change because the
maxspeed value was reporting inconsistent values.
There are two situations where the currentspeed
value would be slower than the maxspeed value:
- If you open the System Properties dialog box
immediately after booting the computer, no programs have really
used all the processor cycles. Therefore, the CPU itself hasn't
really reached maximum speed.
- If you're running a laptop on battery power,
the laptop may be using a system (such as Intel SpeedStep or AMD
PowerNow! Technology) that throttles back the CPU in order to
reduce power consumption.
But regardless of what value the System
Properties dialog box reports, you can always find the maximum
processor speed value in the System Information tool.
Follow these steps:
- Go to Start | All Programs | Accessories |
System Tools | System Information.
- Select System Summary in the left pane, and
locate Processor in the right pane.