Runtime Power Management, v 1.0

7
System Properties - EIST
The System Properties window displays current processor speed on computers installed with an EIST-capa-
ble processor and Windows XP Service Pack 2 that are using an adaptive power scheme. The following
images illustrate a drop in processor speed for an Intel Pentium 4 system (3.4 GHz) under throttled condi-
tions with EIST both enabled and disabled.
Maximum Processor Speed
You can check the maximum speed setting for systems with EIST or Cool’n’Quiet enabled by performing
the following steps:
1. Click Start > All Programs > Accessories > System Tools > System Information.
2. Locate the Processor listing.
The maximum speed of the processor (listed in MHz) displays in the right pane next to Processor.
The System Information screen reports only the maximum speed of the processor.