IBM风扇控制器--fan control

--------------------------------------------------------------- PLEASE READ THIS UNLESS YOU WANT TO FRY EGGS ON YOUR THINKPAD --------------------------------------------------------------- ------------------------------- License/Use: ------------------------------- This program and source code is in the public domain. The author claims no copyright, copyleft, license or whatsoever for the program with exception of WinIO driver. You may use, reuse, abuse or distribute it's binaries or source code in any desired way or form, Usage of binaries or source shall be entirely and without exception at your own risk. Usage of WinIO is excempt from this license. The WinIO driver is (C) by Yariv Kaplan at www.internals.com. License terms for WinIO can be found at http://www.internals.com/utilities_main.htm ------------------------------- Introduction: ------------------------------- This is a early experimental fan control program for the Thinkpad T43 and other models. It has mainly been tested on my own machine (Model. 2668-97G). It may or may not work on other series Thinkpads. Some have been already been tested with success (see below), which may or may not allow conclusions about usage on your computer. THIS PROGRAM IS VERY EXPERIMENTAL. NO WARRANTY IS GIVEN WHATSOEVER. USE OF THE PROGRAM IS ENTIRELY AND WITHOUT EXCEPTION YOUR OWN RISK. If you even think about blaming the author for problems caused by the program, then just don't use it (instead ask IBM to fix their d*mn fan.) If you are not sure if you want to try, just read this carefully and think again. If you are sure that you want to try it still read this file. And please share your results (see links below). Have you realy read the above? Do you get the picture? Well, good! ------------------------------- Further Warnings: ------------------------------- There are possible caveats with this program, some may even appyl after successfully having it tested for a few days or even weeks: - In active mode the program writes to a location in the embedded controller area. Doing this on a system where the byte at this location has another meaning may do all kinds of unexpected and possibly serious things to computers where the specific location in the EC has a different meaning. - Interfering with ACPI software: ACPI aware software (including Windows XP, Thinkpad tools, Thinkpad drivers) communicates with the EC. Running TP43 Fan Control may interfere with these functions with unpredictable results. - When the program controls the fan speed and crashes it will obviously no longer be able to do so. If at the time of the crash the fan was off, it will remain so, independent of the system temperature. - Probably other nasty and undesireable things. ------------------------------- Tested Models: ------------------------------- Currently users have reported successful initial tests with the following Thinkpad machines. (Great thanks to those who were brave enough try): - Series (Model) - T23 (2647) - T40 (2373) - T41p (2373), - T42 (2373) - T43 (1871 and 2668) - T43p (2668) - A31p (2653) - R50 (1829) - R50e (1834) - X41 (tablet 1866) There are no guarantees but this indicates that trying it on T4X models may not run the risk of immediate disastrous results. Other Thinkpad Series (R, A, X, Z, etc.) may also work. A test on an X20 indicated that the program does not work on this model. ------------------------------- Links: ------------------------------- Downloads: - http://sourceforge.net/project/showfiles.php?group_id=153962 Support Thread for this tool: - http://forum.thinkpads.com/viewtopic.php?t=17715 Thread for sharing/comparing temperature results - http://forum.thinkpads.com/viewtopic.php?t=17733 Tech Background: - http://www.thinkwiki.org/wiki/Patch_for_controlling_fan_speed - http://www.thinkwiki.org/wiki/Talk:Problem_with_fan_noise - http://www.thinkwiki.org/wiki/Talk:ACPI_fan_control_script WinIO Driver: - http://www.internals.com/utilities/utilities.htm ------------------------------- Purpose/Implementation: ------------------------------- The program reads the fan control register and various temperature sensors. In active mode it allows to manually change the fan control register and it is able to dynamically switch the fan speed depending on the temperature readings. Fan control is implemented by directly communicating with the embedded controller (EC) via port numbers 0x62 and 0x66 by means of a Windows driver (WinIO, see link above). ------------------------------- Installation: ------------------------------- Unpack the ZIP file to a folder anywhere on your *local* hard drive. After that you should have the following files there: fancontrol.exe fancontrol.ini readme.txt WinIo.dll WinIo.sys (WinIO is a third party driver. Please see the links and license sections for more). ------------------------------- Test "Compatibilty": ------------------------------- So, you really did read the disclaimer above and still want to try? Please read the test instructions fully before you start the program. Open the folder where you unpacked the ZIP file. Edit the fancontrol.ini file (right click, open with, Notepad). Make sure that the "active" switch is set to zero and save the file. With this setting the program will only read values from the Thinkpad but will not make any modifications. It is still possible that this mode will will interfere with other programs, but there is no high probability of permanent damage. If there are problems, a reboot should cure the situation. Then close all programs which may do things to your CPU or BIOS. Mainly under/overvlocking, under/overvolting, temperature and speed monitoring applications. I'm speaking of tools like "Notebook Hardware Control", etc. The reason for this is that these program are also reading from the EC and there is currenty no known way to synchronize EC access between programs. Now, hold your breath and double click the FanControl.exe icon. This should give you a window named "Thinkpad T43 Fan Control". If you get an error message about the WINIO Driver, make sure that all files are in your folder and that it resides on your local hard drive (not on a network). You also need to be logged on with administrative privileges. I have no experience with that driver yet, so if you keep getting this message you'll probably need to experiment or check with the WINIO developer (http://www.internals.com/utilities/utilities.htm). Assuming that you did get the "Thinkpad T43 Fan Control" window, you'll need to check the follwing fields to see if they show meaningful values. Check 1: "Fan State" What you want to see in the first field is either: "0x80 (BIOS Controlled)" or "0x0Y (Fan Level Y, Non Bios)" with a value of 0-7 for "Y". The first value (0x80) is preferrable. Check 2: "Temp." In the second field you should find something like "Highest 47蚓" and CPU 41蚓 (0x78) APS 38蚓 (0x79) X7A 31蚓 (0x7A) GPU 40蚓 (0x7B) BAT 32蚓 (0x7C) BAT 30蚓 (0x7E) XC0 36蚓 (0xC0) PCI 43蚓 (0xC1) PWR 41蚓 (0xC2) There should be a series of values with realistic temperatures (in Celcius). For people from the Farenheit realm values from 25蚓 to 60蚓 are realistic (20蚓 is room temperature, 37蚓 is human body temperature, 60蚓 is quite hot to the touch, 100蚓 is boiling water). The meaning of the sensors is described further below. If you have a program which monitors the CPU temp. start it later (remember, such stuff should not be running on your first test) and check if the CPU value in brackets matches the tool's CPU te