Noise Reduction Boxes
"The AcoustiRACK™ range of cabinets and accessories is designed to enclose noisy 19 inch rackmounted equipment such as servers, networking and audio equipment and are acoustically lined with composite soundproofing materials."
LEY ECD FEK-Pro - "Harddisk insulation for 3.5" harddisks with 1" height. Suitable for drives with up to 10.000rpm (with optimized air-flow even for 15.000rpm)." Here is a Dirkvader.de review in German. It can be translated with Babelfish.
COCOON: "Safe and Sound - Scandinavian Design Furniture for the PC!"
Woodcase: Hand-made wood ATX-size cases for PCs. At this point only in Finish, but one can e-mail questions in English.
AcoustiLock "is a new product that completely eliminates fan and drive noise in critical listening environments."
Rob Lonsdale Audio: The Double Box - "An acoustic enclosure that silences your computer so that you can retain your sanity during those long sessions in the studio."
Sound Construction & Supply
Inc: "At Sound Construction & Supply our goal is to hand-craft
only the finest furniture for your studio. We meet that goal by paying
attention to the little things. From the smooth, honey-colored finish of
our oak trim, to the integrated circuitry of our super quiet ISOBOX,
we critically evaluate each piece that goes into the construction of our
products." This is what one user has said: "The ISOBOX does a nice job
of cutting hard drive noise. However the exhaust fans it uses do
contribute their own background noise, even under low heat loads. It's
on the order of the house A/C system running continually. Some may be bothered
by it, and some may not care. It's enough of an issue in my otherwise quiet
office with my noise-obsessed personality that I'll probably look at replacing
the fans with a quieter model and putting them under control of one of
the enclosed machines at some point. With the exhaust fans off my noisy
laptop and moderately quiet desktop are inaudible."
Vexers AB: "Vexers
Noise Reduction Box - A soundproofing and functional box for most
types of personal computers. Reduces noise to a hardly audible level. The
cooling system has diagonal air flow for best cooling of the CPU. Easy
to install and locate."
"SilentDrive is a thermal and acoustic enclosure designed to reduce the
noise of a hard drive by >90% while still maintaining the drive's required
ambient operating temperatures." Read an initiated comment at SilentPCReview.
Noise-traps represent an intelligent solution for to master one of the main IT engineering problems: We want to keep the noise, but not the heat inside the machine.
Muffled Computing is dedicated to the high performance computing experience free of excess noise. To accomplish this we have done extensive research and development over several months and come up with a set of unique products that offer solutions to noise in a modern high-speed computer.
Sound Insulating Material
AcoustiPack - "is a set of specially developed, high quality, acoustic materials that can be cut and fitted to the inside of any existing computer
case to significantly reduce noise." A SilentPCReview: "The Deluxe AcoustiPack by Acousti Products represents a thorough and effective approach to dampening materials for computer cases. The variety of damping materials supplied, and the various functions they perform, as well as the comprehensive information for the end-user -- all these bespeak of a carefully researched solution not evident in other damping products."
B-Quiet: "Have a noisy computer case?"
Power Snooze: "Frustration of PC noise lead to the development of Power Snooze and with the kit, we ensure that you get a selection of the best sound-damping products available."
Akasa Pax Mate is a sound insulating material designed specifically for PCs. Here is a review by WiperLair, and here is one by Atlanta OC.
is intended for sound insulation of cars, but can be used to line the inside
of the PC case to dampen noise. It has an adhesive back making it easy
to install. It doesn't have any odor.
sells acoustic foam products that can be used to insulate PCs.
is the producer of different sound insulating materials intended for cars,
but sometimes suggested to use for noise dampening of PCs. A common complaint
with Dynamat is an odor. It will disappear after some months use.
Today there are very very few PC cases built with acoustic ergonomy in mind. It seems like the information technology industry until now has shown a bit lack of interest and fantasy to solve the rather basic problem of building PC cases able to evacuate heat at the same time as keeping noise inside. "Noise-traps" on the top of cases taking use of the physical properties of air - hot air rises - evacuating the rising hot air as chimneys, slow moving groumet mounted large fans, noise dampening material, heat-pipes, water cooling and other even more inovative solutions will in a near future most probably be seen used by many PC case manufacturers.
Here is SilentPCReview's Recommended Cases section.
The TNN 500A "is the world's first absolutely noiseless computer case for high-end systems that has been developed with Heatpipe Technology, HSC (Heat Source Contact) Power Technology, a High Capacity Extrusion Technique, and FMS (Flexible Mounting Structure) Design Technology by ZALMAN Tech Co., Ltd." Here is a Tom's Hardware review and here is the SilentPCReview.
GMC cases. A review at Modlabs.net.
Antec Sonata - SilentPCReview concludes: "In the hands of an imaginative or experienced silent PC devotee, it could easily be made extremely quiet."
AcoustiCase™ - "is a range of acoustically insulated high-quality computer cases. Used together with low-noise components, an AcoustiCase™ helps achieve a
significantly quieter computing experience."
Palo Alto Products: Their ATX cases are often regarded quiet and of high quality. Dell, well known for producing quality PCs often with a low level of noise emissions, have used them for some time. On the Palo Alto site one can find links to many reviews. Reading this now old press release it seems like Flextronics now owns Palo Alto Products.
WoodCase makes handcrafted good looking quiet wood PC cases. At this moment the site is only in Finish language, but one can request information in English.
The CALM system: "is a natural heat dissipation system that removes heat from CPU, graphic card and power supply by heat flow without fans. It is a no-noise, no-power, trouble-free computer cooling system." "The standard CALM system comes with a provided PC case which includes a fan-less SMPS, cooling sets for the CPU (Intel Pentium-series, Celeron series, and AMD K-series) and graphic chip." Arthur Gerla contributed with the first review of this interesting solution for how to build a noiseless PC.
Mustang EPP 6210
is a computer housing where conventional steel plate and plastic materials
are replaced by expanded polypropylene hard foam. "For system integrators,
the Mustang EPP 6210 computer housing represents a major timesaver in manufacturing,
excellent noise reduction..." Update: If you have problems using the link
above, the company behind this product is Pilot
Computer, and here is their German page on the Mustang
EPP 6210 case.
Addtronics: The PC-Musician
has reviewed the Addtronics 3890a Midtower ATX Case, and says: "Of course
the real point of this review is testing the quietness of the case and
my rating will primarily reflect that. In this department this case get
a resounding 'hell yeah'. Based pretty much solely on the power supply
which is nearly whisper quiet, it's pretty amazing."
have developed a system they call Whisper technology: "The patent pending
WHISPER technology enables a reduction of noise during full PC operation
to a stunning 28dB(A)*, which is far below official so-called Silent PC
classification values which require a maximum of 33dB(A). This remarkable
milestone in PC noise reduction was reached without compromising the necessary
thermal requirements of even the latest and (literally) hottest CPUs!"
(Comment: This is not the same company as developed the Swedish
Lap Power Whisper System.)
It is worth noting that also some PC monitors are making buzzing sounds; even if this used to be more common earlier. For today it is not known which companies makes noiseless or noisy monitors.
Distancing the Noise Hardware
Matrox Extio F1400 "The Matrox Extio F1400 drives up to four monitors for a resolution of up to 1920 x 1200 per display. A fanless device, Extio F1400 permits a quiet and secure environment by separating the host computer form the monitors and other user peripherals, including keyboard, mouse and audio by up to 250 meters (820 ft) of fiber-optic cable." "This product has been used in many markets that covet silent operation, especially control rooms with operators facing mission-critical information."
NTI provide a lot solutions for to use distancing to minimize PC noise. Long quality cables for the keyboard, mouse and monitor is just one of their specialities.
JUMPtec WEBasDISK: "Simply connected to a HDD port the combination of a NetARM processor and the intelligent firmware of WEBasDISK will convert the data requirements of the system towards a harddisk into TCP/IP messages, which will be sent to a server."
StarTech.com UTP Console Extender "provides convenient and remote access
to a computer located up to 150 m (500 ft.) away from a keyboard, monitor,
and mouse. Your main system box can be placed in a safe and secure location
away from where you need to access it."
VoyagerUTP could be a solution if one wants to minimize PC noise by separating
the system unit from the screen, mouse and keyboard. The system unit can
be put away between 50-300 meters depending of which model you choose.
"Voyager technology is reliable, silent (no moving parts) and delivers
premium video quality. Our customers are invariably very pleased with the
results." Here is a pdf document on VoyagerUTP.
Here is the same document stuffed as sit and
here as zip file. You will need Acrobat
Reader to read it.
Networks Hubs and Switches
Most of the simple ethernet hubs with eight or less ports makes no noise, but hubs with more ports than eight, and network switches can feature fans. When fans are used for cooling in ethernet hubs and switches are they most often small and fast moving; thus making a very distracting noise.
Since most information technology isn't yet labeled with its acoustic noise emissions, is it for the moment hard for customers to find out which hubs and switches are noisy or noiseless. The manufacturers that produce quiet hubs and switches can state this according to ISO 9296 as a sign of product quality. The ones that manufacture fanless products could at least mark that fact, since it wouldn't cost them anything at all, and possibly increase their sales.
Mixed Hardware & Resellers
Pure Silence - " Our silent cooling products for PCs are used by major recording studios, acoustic laboratories and corporate computing environments."
MR Computertechnik GmbH - www.ichbinleise.de - A German reseller.
Kool 'n Quiet - a UK based webstore - "Are you living with an excessively noisy computer? Is it running too hot? Or both?"
SilenX Corporation - "Your source for Silent PC Components!" - A Californian reseller.
PCSilent - a German reseller of noiseless computing products: among them the Verax fans, fan/heatsink combinations and their quiet power supplies.
QuietPC.Com "We offer three types
of products which address the three main sources of noise in most PCs -
hard drive, the power supply and the processor cooler." PC
Notes comments QuietPC.Com products.
Deltatronic Computer: An interesting fanless power supply among other solutions. At this point only available in German.
Muffled Computing is dedicated to the high performance computing experience free of excess noise. To accomplish this we have done extensive research and development over several months and come up with a set of unique products that offer solutions to noise in a modern high-speed computer.
Nexus: a Dutch manufacturer and reseller of quiet system units and components for to build a quiet or silent PC.
BlackNoise - a German reseller.
Silent PC Australia: "is the Proud Distributor of the Silent Systems Range of products including Q Technology ATX Ultra Quiet Power Supplies, Molex Radial Fin CPU Coolers, Silent Drive Hard Drive enclosures, and also the Range of Nexus Products including CPU / Memory Coolers, and Accessories."
endpcnoise.com - a US reseller: "All of our products are especially designed to stop computer noise at its source. You can choose to buy our silent computer products and silence your PC yourself, or, if you like, we can build you a Silent Computer System that is ready to use and quieter than a whisper."
LowNoise PC Supplies - an Australian reseller.
Carillon Audio Systems: "In an ideal world with little pressure on finances and floor space, noisy stuff like tape machines and computers are exiled to a 'machine room' which is acoustically isolated from the studio mixing area."
Silicon Acoustics: "was formed in October 2001 to become the Silent PC Enthusiast's premier source for quiet and silent computer parts and accessories. We specialize in offering hard to find and difficult to obtain products from around the world. Many of the parts we offer are unavailable anywhere else North America."
Just Cooler: "The best solution for cooling down and silent".
LEY®-Enhanced Computer Devices manufacture passive cooling solutions for PCs. At this point their site is only in German.
Koolance manufactures liquid
cooling solutions for processors, power supplies, hard disks and graphic
PC Power & Cooling among
other things sells quiet
power supplies, a computer over-temperature alarm and a 80 mm fan
with an acoustical noise level as low as 20 dBA.
Zalman Tech: "CNPS (Computer Noise Prevention System) is a system that cuts traditional computer system's noise of 30dB or higher to 20dB or lower, which is below what a normal user can usually notice. CNPS is achieved with Zalman's world first technologies such as CPU & VGA FHS(Flower HeatSink), which has shorter heat conductance path and surface area that is 3 to 10 times as large as traditional coolers, and NP(Noise Prevention) Fans. To create a full CNPS computer, you also need NP Power Supply and NP Hard Disk." OCWorkBench
has reviewed their patented copper/gold "Flower HeatSink" with fan. Here is a preview.
in 1998 bought the company Silent Systems, a world leader in PC acoustic
and thermal component solutions: "We are in the process of rolling out
several new lines of heat sinks for PC microprocessors."
SilentPC: "Over the last 9 years Silent PC has been concentrating on the environmental issues for PC’s specially working on getting the noise levels down, this in co-operation with the technical people from the different industries."
NoiseControl "is a package
of products that significantly reduce the noise produced by typical computers."
following products are designed for noise-conscious users and applications
such as music studios."
Nowhere in the information society is the need for quiet information technology more obvious than when talking on projectors. Data projectors are fast becoming affordable for most companies, Government authorities and also for many home theaters. These projectors are commonly built very small. Their lamps generate a lot unwanted heat. Heat tends to threaten their technology's reliability and does therefore have to be kept low; mostly by use of more or less noisy fans.
If being provided the choice everyone realizes that projector weight and small size is a lot less important than the attention of the audience. These pieces of information technology are most often placed in the middle of the audience in very quiet rooms. If their noise emissions don't cause speech-masking, will they clearly consciously of uncosciously become distracting at whatever possible level. Due to the projector noise issue some call them "sleeping pills".
At this point have many projector manufacturers started providing some kind of non-standardized non-comparable non-verifiable noise-data in decibels. Decibels isn't what the IT industry has aggreed upon for to state the important sound power level figures for information technology equipment, and to not state what standard has been used for noise declaration doesn't at all conform with international standardization. Most users of data projectors belong to the most educated ones in their respective countries. It is interesting to see them still finding it acceptable to be provided noise emission data in this non-comparable manner even for very expensive products.
Projector manufacturers should of course also state noise declaration according to ISO 9296 for to facilitate objective comparision between different manufacturers' products . For about a fourth of the end-customer price for just one sample of a mass produced data projector will their manufacturers be able to buy a comparable standardized proffessional noise measurement in an external accredited acoustic laboratory.
Philips Bsure SV2 was chosen the quietest ever tested projector and best projector in test by the Swedish IT hardware reviewing magazine Mikrodatorn (No 11, 2003, pp 44-51). This isn't the smallest projector in business, but its manufacturer seems to understand what to prioritize when building an intelligent product for the information society.
ASK M3: The Swedish PC hardware reviewing magazine Mikrodatorn have chosen the ASK M3 as the best product in their reviews of data projectors both year 2000 and 2001. At the same time ASK M3 was twice chosen for being the most quiet data projector. It's test result for noise emission isn't the best of all reviewed projectors in exact digits, but the quality of the sound it makes is the most comfortable. (Mikrodatorn Nr 15, Dec 2000, pp 42-52, Mikrodatorn Nr 15, Dec 2001, pp 52-59). The other projectors in the 2001 review was Epson EMP 703, Hitachi CP-X270, Infocus LP530, NEC LT155, Philips UGO X-lite, Plus U3-1100Z, Sanyo PLC-XW15, Sharp PGC20X and Sony VPL-CX2.
OptiLight is an inexpensive and quiet media projector under development.
Muffled Computing doesn't manufacture projectors, but noise mufflers that probably also can be used to quieten already bought under-designed projectors. Write to Brian Summerfield, who might start a production if there is enough interest.
Hewlett-Packard is one of the printer manufacturers that for a long time has published noise data according to ISO 9296. HP's noise data can be found below the heading Product Environmental Profiles.
Printers should of course also run as quiet as possible. Serious printer manufacturers not only build quiet running printers, but also conform with the ISO 9296  IT noise declaration standard, to help their customers make a buying decission also based on the compared products' sound power levels in different modes.
A basic recuirement for good acoustic ergonomy is that a printer is totally silent in sleep (stand-by) mode. Note that a totally silent product, for mathematical reasons, isn't declared as a zero B one according to ISO 9296: A silent object has to be declared as "inaudible" or - ∞ B, ie "minus infinity".
Virtual CD & DVD Disc Software
Running virtual CD and DVD discs on quiet hard drives is the best way to overcome the limits of todays high speed vibrating and noise generating removable media readers, and at the same time for to vastly improve access-time to the data they contain.
Hardware manufacturers interested in ergonomics can include this kind of software with their drives.
Note that you have to own the media that you copy this way: Lack of respect for copyright law makes creative people less prone to be creative.
Virtual CD is a commercial solution running on Windows® systems: "Virtual CD copies your favourite audio-, data- or video-CD/DVDs as compressed image files on the hard disk and emulates up to 22 CD drives to access and to run the CD applications. The media itself is not required." Virtual CD is made by the programmers that invented the CD caching in 1995. It's the original.
Hekko Virtual CD - freeware, runs on Windows® systems.
FarStone VirtualDrive - commercial, runs on Windows® systems.
Fantom CD is also a commercial solution running on Windows® systems to make virtual CD and DVD drives on a hard disk.
DAEMON Tools is a program for Windows® users among other things capable of running virtual CD and DVD drives on a hard disk. It's not freeware, but one is free to use it without registration for non-commercial purposes.
CD & DVD Speed changing Software
Speed changing software for CD and DVD readers will become natural to include by manufacturers aware of ergonomics.
CDRom Tool: "With many drives, it is possible to set the read speed to a value lower than the maximum speed. This makes the disc spin slower, reducing mechanical noise. Many also let you set the spindown time to a value higher than the default. This makes the disc stay spinning and ready to access data for longer spans of time. Unfortunately, most CD-ROM drive vendors do not give you the programs you need to change these settings. That's where CD-ROM Tool comes in." CDRom Tool runs on Windows® systems and is free under the GNU General Public License.
Nero DriveSpeed is a freeware program for Windows® users that can control CD and DVD drive speed and spin down time.
CD Bremse is a Windows®
program to make ones CD and DVD reader spin slower than the preset value.
This way vibrations and noise could be put to a minimum when you don't
need full speed. At this point the documentation is only in German.
A virtual disk of RAM can make it possible to avoid a local hard drive, or shut down a noisy hard disk, at least for some time.
SuperSpeed®: RamDisk, SuperSpeed and SuperCache (for Windows).
Cenatek: RamDisk (for Windows)
ARM Linux Ramdisk
AppDisk: MacOS ramdisk software.
Distancing the Noise Software
Linux Terminal Server Project: "The LTSP is all about running thin client computers in a GNU/Linux environment."
VNC - Virtual Network Computing: "It is, in essence, a remote display system which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures."
Etherboot: "is a software package for creating ROM images that can download code over an Ethernet network to be executed on an x86 computer. Many network adapters have a socket where a ROM chip can be installed. Etherboot is code that can be put in such a ROM. Etherboot is normally used for for booting PCs diskless."
Netboot: "enables a computer with an Intel compatible CPU to boot without access to a hard disk or diskette. For this the computer has to be equipped so that it can load the operating system over an IP network from a server. All tools required for this process are included in the Netboot packet."
Mastering of Heat Software
VIA FliteDeck™ is a Windows® based system control suite intended for VIA mainboards. Among other things does it monitor fan speed and temperature. It is today unclear if it also is capable of adjusting cooling according to need.
GL Temperature Sensor can be used to read out the PC system's main component's temperatures from a home-built thermal monitoring circuit. Read how to build the circuit here.
Lm_sensors: "This is the home page for the effort of building and providing some essential tools for monitoring the hardware health of Linux systems containing hardware health monitoring hardware such as the LM78 and LM75"
Wpcredit with additions from ViaHardware Dot Com: "Wpcredit (with the correct patch) allows you to view and change registers of the KT266/266A chipsets. "I will show you how to lower your CPU and ambient temperatures dramatically. I regularly experience temperature drops of up to 15C at idle and 7C at average full load *."
Radiate II is a free win32 heat calculation tool for processors.
VCool: "This little utility will cool your Athlon/Duron processor on Via KT133 or KX133(A) (VT8363, VT8361, VT82C691/693A/694 or VT8371 +VT82C686x) chipsets during idle." VCool is available in a Windows® and a Linux version (LVCool).
is a utility for Windows® users that among other things make it possible
to change how fast the CPU fans are running, based on CPU temperatures.
It's only intended for the Abit BP6 dual Celeron motherboard.
SpeedFan "is a freeware program that monitors fan speeds, temperatures and voltages in computers with hardware monitoring chips. SpeedFan can even access S.M.A.R.T. info for those hards disks that support this feature (almost all :-)) and show hard disk temperatures too, if supported. At the lowest level, SpeedFan is an hardware monitoring software, but its main feature is that it can control the speed of the fans (depending on your sensor chip) according to the temperatures inside your pc, thus reducing noise and power consumption. Most Winbond sensors and ASUS AS99127F support fan speed changing, as well as others from MYSON, ANALOG DEVICES, NATIONAL SEMICONDUCTORS and ITE, but the motherboard should make use of available pins. This means that if you have, say, a W83782D on a BP6 then you're ok. If you have a W83782D on some GigaByte's... you're not :-)."
is a freeware Windows® program which monitors voltages, temperatures and
fan speeds using hardware monitoring chip(s) available on many modern motherboards.
Jonathan Soon Yew Teh, the programmer, has considered adding fan speed
control to MBProbe. He says: "One problem here is that there are many different
types of fan control chips, so trying to get it all to fit into a common
UI could be a problem. Perhaps it would be best to work on a separate utility
(one for each different chip, maybe in the form of plugins) which works
in conjunction with MBProbe to control the fans." Jonathan welcomes anyone
that wants to participate in the work on adding fan speed control or plugins
to the program.
Linux System Hardware Monitoring
is a project with a primary mission to provide the best and most complete
hardware health monitoring drivers for Linux.
Monitor is a freeware Windows® program that can be useful for monitoring
CPU temperature. It can also be used to monitor temperature of S.M.A.R.T capable hard disks, if made capable of reporting this physical property.
Thermograph is a
shareware utility for monitoring the processor temperature of G3 or G4-based
System stressing software
These programs can be used to test if quiet systems keep stable even under maximum stress.
Hot CPU Tester Pro "is a system health and stability tester. It tests CPU, chipset and virtually all parts of motherboard for errors/bugs, defective parts and components."
HeavyLoad "is inteded to stress all resources of a PC (like CPU, RAM, harddisk, network, operating system, etc.) in order to test, if it will run reliable under heavy load." Runs on Windows systems.
CPUBurn is an open source
program designed to load x86 CPU's as heavily as possible for the purpose
of system testing. It can be useful for testing the cooling properties
of your quiet PC. A Windows® and a Linux version is available.
CPU Cooling Software
athcool is a small Linux® utility, enabling/disabling Powersaving mode for AMD Athlon/Duron processors. One user tells athcool dropped his watercooled machine from 40 C down to less than 30 C in web-surfing-use.
CpuIdle is a power management software
for Windows® users: "CpuIdle lowers the CPU temperature. This enhances CPU
life (a decrease by 10°C doubles the life span) and cuts power consumption.
It seems like the Windows® 2000 and Windows® NT operating systems have a
built-in function doing the same job as CPUIdle.
Waterfall and Rain are two older freeware Windows® programs that do the
same thing as CPUIdle: They can make the processor run cooler. Rain is
the most recent one. They don't seem to be updated anymore. Here
can one download Rain. Here is a comparison between Rain, Waterfall and CPUIdle.
ACPI related software
ACPI (Advanced Configuration and Power Interface) is an open industry specification and establishes interfaces for OS-directed configuration and power management on laptops, desktops, and servers. Windows® and Linux® systems use ACPI for their power management. Suspend to RAM (S3) is an ACPI power savings mode, that also shuts off unnecessary noise when computers aren't in use, but users want them to be faster available than when first having to perform a full start-up.
PassMark Sleeper lets you experiment with different ACPI power savings modes on your Windows machine.
Hard Disk Temperature Monitoring & S.M.A.R.T. Software
The ideas behind the S.M.A.R.T. system - Self-Monitoring Analysis and
Reporting Technology - came from IBM,
but it is now used by almost all hard disk manufacturers. It is intended to predict harddisk failiure before it occurs.
S.M.A.R.T includes a software interface when fully implemented. Strange enough has it taken some time before hard disk temperature has been included as a part of the S.M.A.R.T. system - a system intended to protect the user's valuable data: Thus many hard disks still lack the capability to measure and report temperature. If they do, it's safer to enclose them in sound insulating material.
HDD Thermometer is a freeware Windows utility that among other things show hard disks temperature indicators in the system tray.
HDDlife™ - "HDDlife works under Microsoft Windows 2000/ XP/2003 using the latest capabilities of these systems." Freeware.
HDD Health "is a full-featured failure-prediction agent for machines using Windows 95, 98, NT, Me, 2000 and XP. Sitting in the system tray, it monitors hard disks and alerts you to impending failure. The program uses Self Monitoring and Reporting Technology (S.M.A.R.T.) built into all new hard disks, and can predict failures on your hard drives."
Active Smart "is an industry leading S.M.A.R.T. diagnostic and failure prediction software for the hard drives. It uses S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) to monitor the health status of Hard Disk Drives (HDD), monitors drives temperature, prevents data loss and predicts possible drive fail using special algorithms."
Monitor is a freeware Windows® program that can be used to monitor temperature of S.M.A.R.T capable hard disks, if made capable of reporting this physical propterty. It can also monitor CPU temperature.
SMARTmon: "The only S.M.A.R.T. disk monitoring software that
supports SCSI, Fibre channel, IDE, and SSA peripherals. The program is ported to Windows® and LINUX/UNIX platforms and has extensive peripheral configuration, monitoring, and reporting capabilities."
HDD Temperature is a small and free Windows® program that resides in the system tray and there shows the current temperature of hard drives capable of reporting temperature. Here is a list of drives capable of this and supported by HDD Temperature.
SIGuardian™ "is the only tool what allows you full control over the health of your HDDs, and prevents data loss because of failures. Using S.M.A.R.T. technology included in all modern HDDs SIGuardian predicts the end date of HDD lifetime, so you can make backup copies of all your data before it's to late." SIGuardian has been developed by PalickSoft, the company that keeps HDD Temperature for free.
DTemp is a program that can show the temperature of a hard drive. Note that only a few hard drives yet feature built-in thermal sensors.
Storage Soft EZ-S.M.A.R.T. "works with S.M.A.R.T.-compliant hard drives to warn you of an impending hard drive failure, so you can back up or move your data to a safe location before the drive fails.". If ones hard drive is capable of reporting temperature to the S.M.A.R.T system then it can be checked with this software, and one will get a warning if ones drive runs too hot.
SMART Defender is a Windows® program that monitors SMART capable IBM IDE and SCSI hard disk drives. The program reduces the risk of system down time by assessing the reliability and predicting hard disk drive failures. SMART Defender is an IBM replacement for EZSMART.
Hard Disk Spin Down Software
Hard Disk Sleeper is
a Windows® shareware program that will spin down PC hard drives when not
in use. Running Windows® 98, at least in SE, the function spinning down
hard drives not in use for a specified time is built in the system. (Win
95OSR2 does not spin down disks separately.)
Sleeper is a Macintosh shareware program to spin down hard disks.
NOFLUSHD is a GNU/Linux daemon that spins down disks that have not been read from after a certain amount of time, and then prevents disk writes from spinning them back up.
Hard Disk Activity Indicating Software
Hard disks commonly emit two kinds of sounds: The sound emanating from their spinning disk(s), and the sound that comes their reading/writing head(s). When we talk about the "Idling" operating mode sound for hard disks we commonly mean their rotating disks' sound. When we talk about the "Operating" operating mode we mean the sound from their reading/writing heads' activity - superimposed on the Idling sound. The idling sound is the sound most people find bothering, while many people find the hard disk operating sound valuable - telling that there is activity.
Some people like to know when their hard disks' reading/writing heads are utilized. If they build a very quiet computer system they might find out that they can't hear this informing sound any more. Software that visually informs about hard disk activity can be a solution for them.
What still lacks to be develped is a hard disk activity indicating program that optionally also can play a sound; a typical hard disk reading/writing sound, and optionally any sound the user wants to choose.
Diskmon - a utility that captures all hard disk activity or acts like a software disk activity light in your system tray. Diskmon runs on Windows® 2K/XP/2K3 systems.
Temperature Converter: "Converts temperature values between all four standards and shows their relationships, graphically."
1. International Standard ISO 9296:1988 (E) "Acoustics -- Declared noise emission values of computer and business equipment". Further explained at the ISO 9296 page.
2. Acoustic Overview, Version 1.0, Intel Corporation, p 7, Design Goal.
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