CPUIdle Extreme

The official version of CPUIdle Extreme is a compact and practical CPU tool. When CPUIdle Extreme is running, it displays a small icon in the Windows tray bar that shows the percentage of your CPU that is currently idle. CPUIdle Extreme can enhance system stability and support display of CPU idle and cooling time.

CPUIdle Extreme software features

Taskbar icon

When CpuIdle is running, it displays a small icon in the Windows tray bar. This icon shows the percentage of your CPU that is currently idle. Moving the mouse over the icon displays a tooltip showing the CpuIdle version and actual idle percentage value.

Popup menu

​ ​ Right-click on the CpuIdle tray icon to display a pop-up menu for self-exploration. Check or uncheck the "Enable" menu item to turn idle on/off. The same action can be accomplished by double-clicking the taskbar icon.

CPU information table

​ ​ In the "CPU Information" table, various CPU parameters are shown for vendor (i.e. AMD), series (i.e. Family 5 means P5), chip stepping and clock rate. If you see the "CPUID is not supported on this machine" message, you may have a CPU that is too old to support the CPUID instruction (386,468), or your machine has been disabled (this may happen on some Cyrix or WinChip machines, but Usually CpuIdle should solve this problem).

If CpuIdle does not or does not correctly identify your CPU, or if the displayed clock rate is incorrect, the main function of CpuIdle (cooling of the CPU) will not be compromised.

​​​Startup options

​​​ CpuIdle supports the option to allow automatic startup: starting with Windows.

Other options are for enabling/disabling startup screen and CPU optimization. It is recommended to always enable CPU optimization as this may increase application performance (i.e. by enabling write allocation provided by certain CPUs).

CPUIdle Extreme main functions

​ 1. Keep the CPU running at low temperature

2. Enhance system stability

​​ 3. Convenient user interface (multi-language)

​ 4. Display CPU idle and cooling time

5. Integrated with MotherBoard monitor:

​​ ①Enable CpuIdle to read the MBM temperature sensor

​ ​ ② Take action on critical temperature (increase cooling, shut down the system)

​ 6. Universal support for all CPUs and chipsets

​ 7. Supports all current CPU types (see supported CPU list)

​ 8. Special chipset optimization support (please refer to the supported chipset list)

9. Support multi-processor systems

10. Support future free upgrades

CPUIdle Extreme supported devices

CPU

Pentium 4, Mobile Pentium 4, Xeon 4 Celeron Pentium III, Pentium III-S, Pentium III-M, Pentium III Xeon Pentium II, Mobile Pentium II Pentium, Mobile Pentium, Pentium High Speed ​​Drive 386,486,468 Overdrive

AMD

Opteron (not tested) Athlon, Athlon 4, Athlon XP, Athlon MP Duron K6-III, K6-III + K5, K6, K6-2, K6-2 + 386, 486, 468DX, 5x86

The chipset is directly supported by CpuIdle:

VIA KT600 (CpuIdle Extreme)

VIA KM400 (CpuIdle 6.0a)

VIA KT400 (CpuIdle 6)

VIA KT333

VIA KT266, KT266A

VIA KT133, KT133A

VIA KX, KX133

VIA KM266 (CpuIdle Extreme 7.0b)

VIA KN266 (CpuIdle Extreme 7.0b)

VIA PN266 (CpuIdle Extreme 7.0b)

Even if your CPU is not mentioned in this list or is not recognized by CpuIdle, it will still be used out of the box. CpuIdle will issue an HLT statement to shut down the CPU, regardless of whether the CPU can be recognized.

​ ​ Additionally, chipset optimization will be performed on the detected chipset regardless of CPU type.

CPUIdle Extreme Notes

​​​CpuIdle is written in Borland Delphi. In order to perform required chipset and CPU optimizations, CpuIdle requires direct hardware access. Under Windows operating systems, "normal" userspace software is not possible.

To work around this limitation, CpuIdle uses a special device driver to enable direct hardware access.

The application-level interface is the hardware abstraction layer provided by the Delphi TRing0 component. TRing0 provides the following functions:

​ IO port access (byte, word and long)

MSR (Model Specific Register) accesses CPU registers

PCI bus port level access

CR (Control Register) accesses the CPU control register

CPUIdle Extreme installation tutorial

​​ 1. Download the compressed package of the official version of CPUIdle Extreme software from Huajun Software Park. After decompression, double-click the exe file to enter the installation interface, select the component, and the default is enough, click next

​ ​ 2. Set the software installation location. Click browse to freely set the software installation location. It is recommended that you choose to install on the D drive, and then click next

​​ 3. Select the start menu folder, the default is enough, click install

4. The software is being installed, we are waiting patiently

5. The installation of the official version of CPUIdle Extreme is completed, click next

​​ 6. The installation is successful, click finish.

How to use CPUIdle Extreme

​​ 1. Run the cpuidle program; right-click on the desktop taskbar icon and click "Options";

​​ 2. In the "Startup" column, check "Run with Windows startup" and "Optimize CPU/Chipset" in the "Startup Options" box; check "S1 State (Standard Cooling)" in the "Cooling Mode Options";

3. In the "Task Bar", check "Number Display";

​​ 4. In the "Auto Disable" column, you can enter the name of the program that needs to disable cooling when running the program to avoid affecting the running effect of the program, such as games, etc.;

5. Confirm and you will see the percentage of CPU idle in the lower right corner of the desktop;

​ ​ 6. Double-click the cpuidle icon on the taskbar to stop cooling, and double-click again to continue cooling.

CPUIdle Extreme FAQ

   Q: How can I determine if the official version of CPUIdle Extreme is actually working on my computer?

A: A simple method is to manually test the temperature of the air blowing from the CPU fan. After running the official version of CPUIdle Extreme for a few minutes, it will definitely feel cooler than running without CpuIdle.

            If you are wondering how much of a difference CpuIdle makes on your system, and you have a motherboard with an LM 78 or a compatible sensor that displays the system temperature in the BIOS settings, then you can try using Motherboard Monitor or Hmonitor.

Q: Well, I believe the official version of CPUIdle Extreme is effective, but is it safe?

A: Of course. Linux and other operating systems use the same technology as the official version of CPUIdle Extreme to reduce power consumption. However, a cheap PC with low-quality components may be crashed by CpuIdle as well as any other application.

   Q: When I start the official version of CPUIdle Extreme, the CPU usage immediately climbs to 100% - what's wrong?

A: When CPUIdle Extreme is running, it will use all other idle time to keep the CPU cool by executing HLT commands. Unfortunately, Windows doesn't recognize the difference between normal CPU usage and CpuIdle's cooldown command, which only consumes "idle" time. This does not affect normal application.

CPUIdle Extreme update log

​​​Added support for VIA KT600;

​​​Added/updated support for SiS chipsets 730, 733, 735, 746,748, 755;

                                                         Window search function has been added, which can disable CpuIdle activities when a certain win program is running to reduce possible software conflicts;

The user interface has been redesigned to make the layout simpler and easier to use;

​​​​Added -ON and -OFF command line switch parameters to allow control of CpuIdle from batch files.