SpeedFan
Encyclopedia
SpeedFan is software
Computer software
Computer software, or just software, is a collection of computer programs and related data that provide the instructions for telling a computer what to do and how to do it....

 that can read temperatures, voltages and fan speeds of computer components. It can change computer fan
Computer fan
A computer fan is any fan inside, or attached to, a computer case used for cooling purposes, and may refer to fans that draw cooler air into the case from the outside, expel warm air from inside, or move air across a heatsink to cool a particular component...

 speeds depending on the temperature of various components.
The program can display system variables as a chart and as an indicator in the system tray.
Fully configurable user events can be defined to execute specific actions based on system status. As of version 4.37, temperatures in the event section must be specified in °C no matter if the display setting is for °F.

Hard disk support

SpeedFan also monitors S.M.A.R.T.
Self-Monitoring, Analysis, and Reporting Technology
S.M.A.R.T. is a monitoring system for computer hard disk drives to detect and report on various indicators of reliability, in the hope of anticipating failures....

 readings for EIDE, SATA and SCSI hard disks. Starting with version 4.35, SpeedFan fully supports Areca
Areca (company)
Areca Technology Corporation is a company based in Taipei, Taiwan. They manufacture RAID controllers. Areca developed their own custom ASIC, a RAID 6 engine for use on their own controllers. However, recent generations of products have abandoned this custom ASIC in favor of Intel's IOP processors...

 RAID
RAID
RAID is a storage technology that combines multiple disk drive components into a logical unit...

 controllers. Version 4.38 added full support for AMCC/3ware
3ware
3ware was founded in February 1997 by Mitch Altman, J. Peter Herz and Jim MacDonald. In April 2006, Applied Micro Circuits Corporation acquired 3ware for $150 million in cash and became a AMCC product line brand...

 SATA and RAID
RAID
RAID is a storage technology that combines multiple disk drive components into a logical unit...

controllers.

Hard disk in-depth online analysis

SpeedFan offers a feature named "in-depth online analysis" that compares your hard disk's S.M.A.R.T. data to a comprehensive database with statistical models of every known hard disk allowing early detection of potentially degraded hard disks. Full text messages inform the user of specific situations and problems, as if a human expert had looked at the data.

Risks

SpeedFan crashes some systems when it is launched, possibly causing registry corruption or loss of recent changes to the registry. This can cause recently-installed programs to disappear from Add/Remove Programs, programs to no longer function correctly, or loss of operating-system stability.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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