Throttlestop software and Core2 Extreme are related technologies.
Throttlestop software and Core2 Extreme are related technologies.
I am about to examine Throttlestop software. It's a complimentary tool that manages CPU multiplier limits and adjusts LGA775 voltage settings directly within Windows.
Throttlestop aims to prolong laptop battery life by restricting CPU speed and voltage when full power isn't necessary. The utility also offers comprehensive monitoring and some testing capabilities. It functions similarly to Speedstep, but it can establish a lower CPU multiplier threshold than Intel's maximum. Core 2 Extreme processors lack a fixed upper limit (or have an extremely high one), allowing this program to adjust the multiplier beyond what the BIOS permits.
Throttlestop provides real-time temperature readings for all cores and the GPU, along with voltage and actual voltage displays. It indicates processor utilization as a percentage. The software includes benchmark features that run a 30-second stability test and a 15-minute temperature monitoring session. It records the highest temperature reached, so you can see CPU temperature spikes even if they aren't visible during gameplay.
There is a modest learning curve involved, so it's recommended to familiarize yourself with the program before attempting overclocking. You'll need to launch it twice before making any adjustments. CPUZ can display system status when Throttlestop isn't active, which is useful for monitoring without overclocking. Be cautious raising voltage before changing multipliers—changes are limited to whole numbers on 65nm CPUs. The process involves significant steps. On 45nm chips with a 333FSB 1/2 step, this program adjusts the multiplier upon selection rather than saving changes.
For optimal results, consider implementing cooling upgrades such as VRM heatsinks, chipset improvements, CPU and cooler lamination, and additional fan modifications.
The behavior differs between Windows XP and Windows 7. In XP, a taskbar display allows customization of color-coded indicators for CPU speed, temperature, and GPU temperature. You can configure it to save the VID and multiplier upon reboot or revert to defaults, which helps avoid instability from extreme settings. The "C states" option disables Speedstep and can be useful during testing. Rebooting with Speedstep enabled is beneficial for validation without CPU load. XP benchmarks typically outperform 7 in most tests.
In Windows 7, the experience varies. Windows Security prevents automatic startup of this program. Microsoft does not approve overclocking tools, but it allows pinning them to the taskbar if security settings are set low. I recommend using a robust security solution when enabling this setting. I also pin CPUZ there so I can check CPU status without activating Throttlestop. This enables running without overclocking during web browsing, though the O/C is just a few clicks away for activation. When I enable Throttlestop, voltage increases instantly, allowing me to disable Speedstep if needed. If it doesn't reach full speed, cycling EIST back on restores control.
Updated 1/14/2016
A new Throttlestop 8.00 beta version is available. It supports 6-8 core CPUs and offers improved voltage control for newer processors compared to the previous version (v6.00). Overclocking still requires an unlocked CPU. Even without a locked BIOS or Core2X processor, you can use this tool alongside Prime95 or similar utilities to monitor individual CPU cores. This helps identify whether your CPU is performing well or poorly.