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EAP 650W ECO and Power Quiet PSU
Discontinued
EAP 550W ECO and Power Quiet PSU
Discontinued
EAP 450W ECO and Power Quiet PSU
Discontinued
More variations available Show

Rasurbo EAP Eco and Power Quiet PSUs

Rasurbo’s new ECO and Power series power supplies offers EuP/ErP and ATX 2.3 standards and complies with the statutory guidelines for increased energy and better efficiency.

Rasurbo’s new ECO and Power series power supplies offers EuP/ErP and ATX 2.3 standards and complies with the statutory guidelines for increased energy and better efficiency (less than 1% power consumption in stand-by mode). As well as the aforementioned standards, the ECO PSUs offer excellent performance and stability while remaining extremely quiet.

Energy-related Products (ErP) / Energy-using Products (EuP)

The EuP Directive 2005/32/EC established a framework for setting eco-design requirements for energy-using products. It was recast in 2009 as the Eco-Design Directive (2009/125/EC). It aims to improve the environmental performance of products throughout their life-cycle, by integration of environmental aspects at a very early stage in product design. The Directive was transposed into UK law under Statutory Instrument (SI 2007 No:2037) and came into force on 11 August 2007.

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Features

  1. New updated Rasurbo PSUs
  2. ATX 12V 2.3 support
  3. Very quiet 120mm temperature controlled fan, average 16 dB
  4. Over voltage, capacity overload and short circuit protection
  5. Excellent value for money
Show specifications and reviews for:
SpecificationsEAP 450W ECOEAP 550W ECOEAP 650W ECO
Model NumberEAP450 EAP550 EAP650
ATX12V Versionv2.3 v2.3 v2.3
20+4-pin ATX ConnectorYes Yes Yes
ATX12V (4-pin) supportYes Yes No
EPS12V (8-pin) supportNo No Yes (4+4 pin)
PCI-E support (6-pin)Yes, x1 Yes, x1 No
PCI-E support (6+2-pin)No No Yes, x1
Number of floppy drive connectors1 1 1
Number of molex connectors2 2 2
Number of SATA power connectors3 3 4
Master power on/off switchYes Yes Yes
Acoustic noise level16 dB average 16 dB average 16 dB average
Fan size120mm, thermally controlled 120mm, thermally controlled 120mm, thermally controlled
Length of motherboard power cable50 cm (approx) 50 cm (approx) 50 cm (approx)
+3.3V maximum output current18 A 19 A 20 A
+5V maximum output current22 A 23 A 24 A
+12V1 maximum output current18 A 19 A 21 A
+12V2 maximum output current17 A 18 A 20 A
-12V maximum output current0.3 A 0.3 A 0.3 A
+5VSB maximum standby current2.5 A 2.5 A 2.5 A
Mains input voltage230 VAC, 50 Hz 230 VAC, 50 Hz 230 VAC, 50 Hz
Physical dimensionsH 85 x L 150 x W 140 mm H 85 x L 150 x W 140 mm H 85 x L 150 x W 140 mm
ProtectionActive PFC, OVP, OPP and short-circuit Active PFC, OVP, OPP and short-circuit Active PFC, OVP, OPP and short-circuit
CertificatesCE CE CE
Warranty24 months 24 months 24 months
EAN barcode4716123313717 4716123313724 4716123313731
SpecificationsEAP 450W ECOEAP 550W ECOEAP 650W ECO
Model NumberEAP450 EAP550 EAP650
ATX12V Versionv2.3
20+4-pin ATX ConnectorYes
ATX12V (4-pin) supportYes No
EPS12V (8-pin) supportNo Yes (4+4 pin)
PCI-E support (6-pin)Yes, x1 No
PCI-E support (6+2-pin)No Yes, x1
Number of floppy drive connectors1
Number of molex connectors2
Number of SATA power connectors3 4
Master power on/off switchYes
Acoustic noise level16 dB average
Fan size120mm, thermally controlled
Length of motherboard power cable50 cm (approx)
+3.3V maximum output current18 A 19 A 20 A
+5V maximum output current22 A 23 A 24 A
+12V1 maximum output current18 A 19 A 21 A
+12V2 maximum output current17 A 18 A 20 A
-12V maximum output current0.3 A
+5VSB maximum standby current2.5 A
Mains input voltage230 VAC, 50 Hz
Physical dimensionsH 85 x L 150 x W 140 mm
ProtectionActive PFC, OVP, OPP and short-circuit
CertificatesCE
Warranty24 months
EAN barcode4716123313717 4716123313724 4716123313731

Customer Reviews

EAP 650W ECO
EAP 550W ECO
EAP 450W ECO

We haven't received any reviews of this product yet.

Very quiet but short on connectors

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This PSU is certainly very quiet for a PSU with a fan - barely audible.

However, power connectors seem rather sparse compared to previous PSUs I have used, and the cables are a bit short too. This means that while there are just enough connectors for my tower system with DVD, Floppy and hard drives, I will be struggling if I need to add any additional drives. Things might be better in a compact case, but this PSU is not really sufficient for a well-filled tower.

Brilliant PS

,

Very quiet, good tidy cables, good length excellent PSU.

Colour me impressed

,

Does what it says on the tin, which is provide an extremely quiet experience.

I have this in a bedroom which has very low ambient noise when other noise sources are removed. It’s not QUITE as quiet as the Nexus Value 430W I use in another machine, but it’s almost half the price, so I wasn’t expecting it to be as good (not to mention the Nexus Value, at it’s best has noise levels of only 11dB as per SilentPC Review)

Only downside is it has 3 SATA connections, but only 2 Molex (presumably for optical drives) which is a little on the low side, and if your drives are older might warrant a splitter purchase. It does have a PCI-E connector though, so this would make a good PSU for a modern office, day to day or HTPC; or anything else which doesn’t require lots of connectors, or more than 450W.

Still, extremely happy. The teller now will be seeing if it remains reliable!

Really quiet, but not enough power sockets

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There were too few 4 pin power sockets (Molex) for my system, so I am now trying to find a fix to power a fan. The information on the web and on the box was not clear (I could not understand the terminology) on how many sockets of each type were available.

Great Purchase!

,

I think this will be my new preferred brand PSU supplier from now on! Extremely impressed at how quietly it runs - I have the 450W version.

Product Resources

FAQ

  • Do high wattage power supplies cost more to run?

    No - the rated wattage of a power supply refers to the maximum amount of power it can deliver at full load, not how much power it uses. More powerful PSUs will consume around the same amount of power as lower powered power supplies in any given PC system, so your electricity bill will not be higher when using a more powerful power supply!

    The best way to reduce your electricity bill when using your PC is to use a more efficient power supply or make your PC consume less power by removing components which are not needed, such as extra drives and expansion cards, or by choosing a cooler-running processor or graphics card.

  • My brand new power supply doesn’t work! Am I doing something wrong?

    It’s possible that the power supply may be faulty, but here are some simple things to check. Firstly, a power supply will not work if you simply plug it in and flick the switch. The power supply will only turn on if you connect it to a working motherboard and associated items (processor, memory, video card, etc). It is actually the motherboard which tells the power supply when to switch on.

    Secondly (if applicable), check the voltage is set correctly to 115/230 volts depending on what country you are in. Thirdly, if possible it would be good to try the power supply in another PC to see if it works, or try another power supply in your PC to see if that works. You can then tell whether it is the power supply which is faulty or the actual PC itself. If all else fails, please contact us for further support, and/or return details.

  • Why should I buy a whole new PSU when I could just replace the noisy fan in my existing one?

    Virtually all the noise generated by a PC power supply originates from the cooling fan inside it, so simply replacing the fan with a quiet fan may seem an obvious way to go. However, if you are thinking about attempting this operation, please bear the following points in mind:

    • Your existing power supply will be designed to run with a specific amount of airflow in order to adequately cool the components inside and reducing the airflow may lead to overheating and damage to the power supply and/or PC.
    • All PC power supplies contain very high voltages and even with the power disconnected, the voltages stored in the capacitors can be easily enough to kill. It is not recommended to take the cover off any PC power supply for this reason unless you are absolutely confident of your own ability. Because of the grave dangers involved, all PC power supplies by law carry a warning label forbidding removal of the power supply case.
    • There will be no standard PC fan connector inside the power supply to use to connect a replacement fan, and it would probably have to be soldered directly into the PCB inside the power supply, or have a specialist power connector attached. This can be a tricky operation to say the least.

    Please consider the above points very carefully before proceeding with an operation to replace the fan in your existing power supply!

  • What is PFC (Power Factor Correction)?

    If you are interested in being “green” and saving the planet, you might like to read a short explanation of how our power supplies can save energy using Active PFC (Power Factor Correction), not to be confused with Power Conversion Efficiency which is also very good in most of our PSUs. “Power Factor” is a measure of how efficiently electrical power is consumed. Ideally, Power Factor would be 1 (or 100%) and known as unity.

    Unfortunately in the real world, Power Factor is reduced by highly inductive loads down to values of 0.7 (70%) or less. This induction is caused by equipment such as small electric motors, fans, fluorescent lighting ballasts and transformers such as those in PSUs. This is bad news for the electricity generating companies who can impose a surcharge on heavy users if they have a consistently low Power Factor, as more electricity has to be produced to make up the shortfall.

    Power Factor Correction (PFC) is used in some equipment to minimise the inductive component of the electrical current. This helps to reduce the losses in the electrical supply to that equipment. Power Factor Correction capacitors are normally used to reduce induction in an electrical load, which minimises wasted energy and hence improves the efficiency of a company and reduces electricity costs.

    It is not usually practical to reach unity, i.e. Power Factor 1, and it seems that most electricity supply companies accept consumers having a Power Factor as low as 0.94 (94%) without imposing a surcharge. Unfortunately most of the cheap (and not so cheerful) PSUs tend to have a Passive PF as low as 0.75 or 75% which in a large office can lead to a PF surcharge.

    However, the good news is that most of Quiet PC’s PSUs implement a system known as Active PFC which involves some clever electronics. This means that their power factor (PF) can be as high as 0.94 or 94% (at full load), while harmful harmonic frequencies are reduced to well below legal requirements. So by using our products, you can be happy in the knowledge that you are doing your bit to save the planet!

  • How do I know what size of wattage power supply I need?

    The best answer we can give to this question is to go ahead and take an intelligent “guesstimate”! There are no hard and fast rules about what size of power supply any given PC needs as a minimum. Our advice would be that if you are replacing an existing power supply, then consider a new one at least of the same wattage as the old one. In addition, if you wish to build in a “safety margin” to allow for reliable running and possible future upgrades, consider adding 100-200 watts to the rating of your existing unit.

    If you are building a new PC, most customers now buy a power supply rated in the region of 500-800 watts depending primarily on the performance level of their graphics card(s) and number of drives to be installed. But in any event if you are unsure about which power supply would be best for your PC then please do contact us by phone or email and we will be happy to give you a specific recommendation based on your budget.

  • My new PSU came with a 24-pin connector but my motherboard needs 20 pins! Do I need an adaptor cable?

    We receive many customer enquiries about this. In fact, most of the 24-pin compatible power supplies we sell come with special motherboard connectors which can be converted to 20-pins with no additional conversion cables. All you need to do is look carefully at the connector and you will see that the end four pins can be slid off, turning the connector into a 20-pin compatible one (see below) - easy when you know how!

    Image showing how to change a power supply’s 24-pin motherboard connector into a 20-pin connector by unclipping the end four-pin block
    Image showing how to change a power supply’s 24-pin motherboard connector into a 20-pin connector by unclipping the end four-pin block
  • What do the PSU safety protection abbreviations mean?

    There are many possible safety protections a PSU can have. Below is a list of what each abbreviation means. Please note, not all PSUs have all safety protections.

    More information on certification marks can be found here.

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