Silent Fanless Power Supplies
This page been dedicated exclusively to the best fanlless and semi fanless computer power supplies. If you are a true Quiet \ Silent PC enthudiast then you know the silence begins here.
As you know one of the loudest most annoying components in your system is the power supply while are quiet power supplies combine a good soulution to fighty the noise our fanless
power supplies can't be beat. Providing you with 0 Db this is a quiet silent solution to your promblem.
If you prefer to have a fan available when you need it for performance reasons we sugest the Stealth PSU with its semi fanless controller or the NesteQ with the AMPS set to degree
controler.
As you know one of the loudest most annoying components in your system is the power supply while are quiet power supplies combine a good soulution to fighty the noise our fanless
power supplies can't be beat. Providing you with 0 Db this is a quiet silent solution to your promblem.
If you prefer to have a fan available when you need it for performance reasons we sugest the Stealth PSU with its semi fanless controller or the NesteQ with the AMPS set to degree
controler.
Quiet Fan Information for Power Supplies, CPU, Case and more ...
QUIET FAN and POWER SUPPLY
There are now off-the-shelf power supplies that produce in excess of 350W yet are virtually inaudible. Installing a quiet fan in the power supply can be a worthwhile upgrade, but the
procedure requires a qualified technician. Power supply capacitors can retain a lethal shock, even when unplugged. Also, the fan connector may be non-standard or may require a direct
solder connection to the board.
Special fan-less power supplies are now available such as this impressive 500 watt model made by SilentMaxx. How about '0' dbA! There are some relatively new models of fan-less
power supplies now avaiable which are very well designed and very efficient, but remember that the main source of venting for most internal case heat build-up is usually the power supply
fan so you may have to install an extra case fan anyway to exhaust the internal case heat. Also, a fan-less power supply may not need a fan because it doesn’t produce a very high output,
so you may not be able to expand your computer without pushing it over the edge. There are more elaborate silencing methods, such as water or oil cooling, but these options are
generally impractical in the typical sound production/playback environment.
When selecting a power supply, look for “sheathed” cables that supply 5V and 12V power on the ATX connector (as well as the serial ATA connectors if so equipped) to the PC’s various
components. These improve airflow and don’t have gaps that can generate noise as air goes through them.The QTechnology line of power supplies are quiet, efficient, and have sheathed
cables. The Ultra Quiet 460W Gold Series power supply unitmade by QTechnology is super quiet, generating only 17db(A), with an overall acoustic noise level range of 17 - 26dB(A).
Some power supplies have the exhaust fan mounted on the power supply’s bottom. This helps keep fan noise inside the case rather than directly out of the back where there’s a more
direct path to your ear. However, as the area at the top of the inside of the case behind the power supply gets less air flow, try to mount hard drives toward the bottom of the case to avoid
inadvertently creating “heat pockets.”
QUIET FAN and CPU COOLER
Older CPU coolers used heat sinks with a relatively small surface area, coupled with a fixed RPM high-speed fan to move air over the small surface area. Newer CPU cooling systems
may use copper instead of aluminum for better heat transfer, and elaborate heat sink designs that dissipate more heat into the air. If you couple these with a large fan, the fan can rotate
more slowly, further reducing noise levels even further. Some heat sink/fan designs, as used in some products pioneered by Zalman, don’t couple the two components directly; the fan
used in this example may be much larger than traditional designs, and suspended over the CPU heat sink by a special frame that connects to the PC chassis. This reduces noise
dramatically due to using a larger fan, and minimizing noise-causing air flow effects.
QUIET FAN and COMPUTER CASE
Case fans, CPU fans, motherboard, and video card cooling fans share the same design considerations described above in the “Power Supplies,” section and you pretty much get what
you pay for. You can also decrease case fan noise with vibration isolation. Special fan mounts will help reduce the transfer of vibrations to areas of the case that can resonate
sympathetically and acoustically amplify the noise.
Recently, Acousti Products has introduced some fairly inexpensive, yet effective, silicone gel fan mounts and fan gaskets.
Standard 80mm case fans usually come in one or two wiring configurations, and each has its own type of connector. A four-pin Molex connector (like the type that supplies power to a hard
disk drive) delivers 12V DC. It doesn’t inherently accommodate speed control. The “three-wire” type of fan allows feedback from the fan so the user can see the fan speed, and/or an alarm
can sound if the fan fails. If your three-pin fan speed isn’t controlled by the motherboard, inexpensive fan speed controls let you limit the fan speed to a lower RPM. This can drop unwanted
noise levels quite a bit, but make sure there’s still enough airflow to dissipate heat.
QUIET FAN SPECIFICATION Information
A fan spec sheet will specify air throughput in “CFM,” or cubic-feet-per-minute. As a general rule, bigger is better; a 120mm fan rotating at a low speed with usually move more air than a
smaller fan running at a higher RPM. We recommend the AcoustiFan 120mm fans from Acousti Products, which are literally inaudible. Learn to understand dB specs you read for
computer components. As a general guideline, anything 15dB or less is inaudible to most people under most circumstances. 20 dB or less is very acceptable in many situations but not
quiet enough for recording studios and other applications that require silence. Anything over 25 dB will be very audible to most people. Fan noise above 30 dB getting into the 'rude' zone.
Adapted from " How To Silence Your PC ".
QUIET FAN and POWER SUPPLY
There are now off-the-shelf power supplies that produce in excess of 350W yet are virtually inaudible. Installing a quiet fan in the power supply can be a worthwhile upgrade, but the
procedure requires a qualified technician. Power supply capacitors can retain a lethal shock, even when unplugged. Also, the fan connector may be non-standard or may require a direct
solder connection to the board.
Special fan-less power supplies are now available such as this impressive 500 watt model made by SilentMaxx. How about '0' dbA! There are some relatively new models of fan-less
power supplies now avaiable which are very well designed and very efficient, but remember that the main source of venting for most internal case heat build-up is usually the power supply
fan so you may have to install an extra case fan anyway to exhaust the internal case heat. Also, a fan-less power supply may not need a fan because it doesn’t produce a very high output,
so you may not be able to expand your computer without pushing it over the edge. There are more elaborate silencing methods, such as water or oil cooling, but these options are
generally impractical in the typical sound production/playback environment.
When selecting a power supply, look for “sheathed” cables that supply 5V and 12V power on the ATX connector (as well as the serial ATA connectors if so equipped) to the PC’s various
components. These improve airflow and don’t have gaps that can generate noise as air goes through them.The QTechnology line of power supplies are quiet, efficient, and have sheathed
cables. The Ultra Quiet 460W Gold Series power supply unitmade by QTechnology is super quiet, generating only 17db(A), with an overall acoustic noise level range of 17 - 26dB(A).
Some power supplies have the exhaust fan mounted on the power supply’s bottom. This helps keep fan noise inside the case rather than directly out of the back where there’s a more
direct path to your ear. However, as the area at the top of the inside of the case behind the power supply gets less air flow, try to mount hard drives toward the bottom of the case to avoid
inadvertently creating “heat pockets.”
QUIET FAN and CPU COOLER
Older CPU coolers used heat sinks with a relatively small surface area, coupled with a fixed RPM high-speed fan to move air over the small surface area. Newer CPU cooling systems
may use copper instead of aluminum for better heat transfer, and elaborate heat sink designs that dissipate more heat into the air. If you couple these with a large fan, the fan can rotate
more slowly, further reducing noise levels even further. Some heat sink/fan designs, as used in some products pioneered by Zalman, don’t couple the two components directly; the fan
used in this example may be much larger than traditional designs, and suspended over the CPU heat sink by a special frame that connects to the PC chassis. This reduces noise
dramatically due to using a larger fan, and minimizing noise-causing air flow effects.
QUIET FAN and COMPUTER CASE
Case fans, CPU fans, motherboard, and video card cooling fans share the same design considerations described above in the “Power Supplies,” section and you pretty much get what
you pay for. You can also decrease case fan noise with vibration isolation. Special fan mounts will help reduce the transfer of vibrations to areas of the case that can resonate
sympathetically and acoustically amplify the noise.
Recently, Acousti Products has introduced some fairly inexpensive, yet effective, silicone gel fan mounts and fan gaskets.
Standard 80mm case fans usually come in one or two wiring configurations, and each has its own type of connector. A four-pin Molex connector (like the type that supplies power to a hard
disk drive) delivers 12V DC. It doesn’t inherently accommodate speed control. The “three-wire” type of fan allows feedback from the fan so the user can see the fan speed, and/or an alarm
can sound if the fan fails. If your three-pin fan speed isn’t controlled by the motherboard, inexpensive fan speed controls let you limit the fan speed to a lower RPM. This can drop unwanted
noise levels quite a bit, but make sure there’s still enough airflow to dissipate heat.
QUIET FAN SPECIFICATION Information
A fan spec sheet will specify air throughput in “CFM,” or cubic-feet-per-minute. As a general rule, bigger is better; a 120mm fan rotating at a low speed with usually move more air than a
smaller fan running at a higher RPM. We recommend the AcoustiFan 120mm fans from Acousti Products, which are literally inaudible. Learn to understand dB specs you read for
computer components. As a general guideline, anything 15dB or less is inaudible to most people under most circumstances. 20 dB or less is very acceptable in many situations but not
quiet enough for recording studios and other applications that require silence. Anything over 25 dB will be very audible to most people. Fan noise above 30 dB getting into the 'rude' zone.
Adapted from " How To Silence Your PC ".
Looking for silence in a new Silent Fanless computer power supply or pc power supply tester? Acoustic PC stocks the leading brands in silent pc
computer power supply units (PSUs). We have SLI ready power supplys, Crossfire ready power supplys, modular power supplys, micro-ATX power
supplys and auxilliary power supplys. We have a big selection of power supply accessories like psu cables, psu connectors, psu silencers, and psu
testers.
computer power supply units (PSUs). We have SLI ready power supplys, Crossfire ready power supplys, modular power supplys, micro-ATX power
supplys and auxilliary power supplys. We have a big selection of power supply accessories like psu cables, psu connectors, psu silencers, and psu
testers.
Totaly Fanless 0 dB(A) ! Silent Computer Power Supplies
Fanless Switching External Silent Power Supplies
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