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Nitro Oxide

When are the big CM PSUs coming and what are their features?

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Let me answer madman's questions:

at 68% efficiancy a 150 W DC load would become 150/0,68=221 W AC load

Yes, you are right. But there is another parameter which is PF value to calculate input power consumption.

at 75% efficiancy a 150 W DC load would become 150/0,75=200 W AC load

Yes, you are right. But there is another parameter which is PF value to calculate input power consumption.

No way that first can cost twice(5 and 2,50 dollar comparison) energy wise.

It is depends on the performance of efficiency and power factor value and how many output power wattages the customer used on their system.

Is the efficiancy measured at 110 V or 220 V, efficiancy at full load or less load?(if so what load)

The measured result is different according to the output wattages are used to system. Please check the testing result of our RS-550-ACLY as following.

At what temperature is that MTBF tested at?

It is based on 25 degree ambient temperature.

At what temperature can it sustain 650W?

There is no problem if ambient temperature is below 40 degree during a very short time.

If it's not about looks, then why does it boast a led-fan. What kind of fan does it come with?

The RS-550-ACLY is not only for power user but also for gamer. This is the reason why we design dual ball baring LED fan within real power 550W PSU. Of cause, we do not need a LED fan if customer used to server system. Do not forget that this is also for server system.

No psu (with fan) i've ever seen will stay below 23 dba at full load, does this one really or is it only at light loads?

Please check the testing result as following. The fan voltage of real power 550W is from 5V up to 11.8V. Hence, the noise level is from 20.3 dBA up to 38 dBA. The fan voltage is keeping in 5.8 volts if the output loading is below 40%. In case of 5.8 volts, the noise is about 23 dBA. That's why our general specification is wrote at 23 dBA. Because of general personal computer never over 200 watts normally.

Voltage(V) 5 6 7 8 9 10 11 12

Noise(dB-A) 20.3 23.2 26.6 29.5 32.1 34.1 36.4 38.3

Test results:

post-136-13880421418068_thumb.jpg

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madman2003    0

(Active) PFC is only usefull for putting less strain on the energy grid, by having more "stable" power demands. The energy grid itself will be more efficient (and more environmently friendly). The power meter in a house looks at real power not apparant power(low pf value will lead less constant power demands). So Active PFC is a good thing, but it will not save you money. (it will reduce efficiancy a bit because of added electronics)

When i said low power, i meant somewhere around 50-80 watt, was efficiancy tested at those levels?

25 degrees fahrenheit or celsius?

650W is peak power level?

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Martok    0

Whats the leadtime in th UK for these PSUs.

And will they be able to power a SLI rig or one of the new ASUS dual chip cards.

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