HP dx7208 Runtime Power Management v1.0 - Page 3

Processor Intel's 600 and 800 series processors support EIST. AMD's Athlon 64 line of processors support Cool'n'Quiet. Both technologies may become a standard feature for future processors. Chipset EIST requires the Intel 915 or later chipset. Current HP business desktop systems with qualifying chipsets include: Intel 915: • dc5100 • dc7100 • dx6100 (not available in North America) Intel 945: • dc7600 • dx7200 (not available in North America) Cool'n'Quiet requires the ATI RS480/SB400 (Radeon Xpress) chipset. Current HP business desktop systems with qualifying chipsets include: ATI RS480/SB400: • dx5150 System BIOS You can enable or disable the Runtime Power Management (RTPM) option in the BIOS of Intel 915 and 945-based systems. This option is located in F10 Setup in the Power/OS Power Management section. The default EIST BIOS support setting depends on several factors: EIST Support Yes No No TM2 Support Yes Yes No Default Runtime Power Management (RTPM) Setting RTPM Option Shown in F10 Setup - Enabled RTPM Option Shown in F10 Setup - Disabled RTPM Option Not Shown in F10 Setup Thermal Monitor 2 (TM2) is an older Intel processor feature that allows CPU throttling to slow down the processor. EIST will replace TM2. Some older processors support TM2, but do not support EIST, while even older processors do not support either TM2 or EIST. All processors shipped with HP i915 and i945 systems support both EIST and TM2. You can enable Runtime Power Management (RTPM) on systems that only support TM2. This setup allows the BIOS to control processor throttling. EIST uses the operating system to control throttling. 3