SpeedFan 4.51

Operating systemsOS : Windows 98/Me,Windows 2000,Windows XP/2003/2008,Windows Vista,64-bit
Program licensingSoftware Licensing : Freeware
CreatedCreated : Apr 13, 2008
Size downloadDownload size : 1.56 MBytes
Program licensing
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Test result: CLEAN

SpeedFan 4.51 Monitor Voltage, Fan Speed And Temperat...

Fan by Alfredo Milani Comparetti is a program that monitors voltages, fan speeds and temperatures in computer with hardware monitor chips. SpeedFan 4.51 can even access S. M. A. R. T. info for those hard disk that support this feature and show hard disk temperatures too, if supported. SpeedFan [speedfan4.51.exe] supports SCSI disks too. SpeedFan - 1.56MB can even change the FSB
on some hardware (but this should be considered a bonus feature). At the lowest level, SpeedFan 4.51 is a hardware monitor software that can access digital temperature sensors, but its main feature is that it can change fan speeds (depending on the capabilities of your sensor chip and your hardware) according to the temperatures inside your pc, thus reducing noise. Several sensors, like Winbond' s and the AS99127F support fan speed changing, as well as others from Maxim, Myson, Analog Devices, National Semiconductor and ITE, but the hardware manufacturer must have connected the relevant pins to some additional, yet trivial, circuitry. This means that if you have, say, a Winbond W83782D on a BP6 then you' re ok, but not every motherboard with such a hardware monitor chip will be able to change fan speeds. From one of the very first hardware monitor chips that could be found in standard PCs, the National Semiconductor LM75 (and all of its clones, like the Philips NE1617 and the Philips NE1618 or the Maxim MAX1617) or the Analog Devices ADM1021, such chips have been greatly improved, both in their precision and in their capabilities. Current chips can monitor fan speeds, voltages and change fan speeds by using PWMs (Pulse Width Modulation). Some chips can even be programmed to vary fan speeds without any additional software intervention. If your BIOS was programmed to setup such chips this way you can still try to use SpeedFan' s Advanced Configuration to revert to manual (software controlled) mode. Winbond W83697HF, Analog Devices ADT7463, SMSC EMC6D102, ITE IT8712F, National LM85C and Maxim MAX6650 are very good candidates. Some SuperIO chips include temperature sensors too. SpeedFan can automatically detect them and use their features. SpeedFan can find almost any hardware monitor chip connected to the 2-wire SMBus (System Management Bus, a subset of the I2C BUS) Serial Interface and to the ISA BUS and works fine with Windows 9x, ME, NT, 2000, 2003 and Windows XP. It works with Windows 64 bit too. It can be minimized to the tray and is compatible with Motherboard Monitor 5.

What is new in official SpeedFan 4.51 software version? - added full support for Fintek F71811U - added full support for Nuvoton NCT6106D - added full support for Nuvoton NCT6792D - added full support for Fintek F71878A/F71868A - added full support for ITE IT8783F - added full support for Intel C610/X99 SMBus - added full support for ITE IT8620E - added support for Nuvoton NCT6683D - fixed Fintek F71808A PWM MODE setting - added PWM 4 ENABLE and PWM 5 ENABLE to advanced options for the ITE IT8620E to enable or disable PWM 4 and 5 writes - smbus access is disabled for Sapphire PC-AM2RD790 - fixed fan speed readings on the NCT6791D - SCSI Scan is automatically disabled if iastorA.sys driver is installed - use /DOSCSISCAN to force enable it - fixed Fintek F71811U PWM TYPE advanced setting - greatly improved RAM SPD decoding for SDRAM, DDR, DDR2, DDR2 FB-DIMM and DDR3 - improved identification of newer revisions of Microchip MCP9843 and MCP98243 - fixed STTS3000 and STTS2002 temperature reporting - fixed old IT8705F identification - events can now be triggered if something happens for, at least, up to 9999 times (it was 99) - battery charge is now properly updated on the EXOTICS tab - NCT6791D IO Space accessibility is now tested upon resume from suspend and fixed, if needed - restored DIMM access on latest Intel chipsets - added manifest to improve support up to Windows 10 - configuration dialog now always opens at the center of the main window. What is expected in the future? Newly-made SpeedFan 4.52 be downloaded from current page, we also looking forward to unconfirmed 4.53 release build. You may download sfdownload.php directly, estimated download time by ISDN or CDMA [~128 kbit/s] is 0:01:29. Just write the reviews of the SpeedFan. System requirements are unspecified. Program has been scanned and verified by the several antivirus and anti-spyware applications and SpeedFan found to be clean. New guides and SpeedFan tutorials are easy to follow and give you the knowledge to use SpeedFan 4.51 software. The following languages are supported by SpeedFan: English.

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