HP dx7208 Runtime Power Management v1.0 - Page 8

System Properties - Cool'n'Quiet The System Properties window displays current processor speed on computers installed with a Cool'n'Quiet-capable 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 AMD Athlon 64 3800+ system (2.4-GHz) under throttled conditions with Cool'n'Quiet enabled and disabled. How will EIST and Cool'n'Quiet impact HP Customers? HP tests its images and deliverables for EIST and Cool'n'Quiet compatibility. These tests include: • Applications bundled with HP bPC computers • Operating system images bundled with HP bPC computers • Peripheral drivers bundled with HP bPC computers • Samples of popular applications and games By default, the Home/Office Desk power scheme that is shipped with the HP image is non-adaptive. This means that under normal circumstances, a system will not see any power saving benefits with an EIST or Cool'n'Quiet capable processor. HP resolves this issue by making the Home/Office Desk power scheme adaptive using the Microsoft supplied powercfg.exe utility. During unbundling, if the system contains an EIST or Cool'n'Quiet- capable processor, the Home/Office Desk power scheme is modified. 8