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Corsair announces "ultra-quiet" RM Series Power Supplies

Corsair announces "ultra-quiet" RM Series Power Supplies

Corsair RM1000 PSU.

Corsair has unveiled the latest addition to its power supply range in the shape of the Corsair RM Series.

The new lineup has quiet operation as its focus with the fan only kicking in when the PSU is under heavy loads.

Replacing the company's TX Series the new models are all fully modular, with even the main motherboard connection being removable. They're also all rated at 80 Plus Gold, which means they offer up to 92% (90% for 115V AC) efficiency.

Corsair has also confirmed the range is certified to work with Intel's latest Ivy Bridge E and Haswell processors. Some PSUs had problems working with Intel's Haswell CPUs due to their particularly low power states, but not here.

Starting at 450W and going all the way up to 1000W the new range covers most practical power requirements for your average PC.

The RM Series is also compatible with the Corsair Digital Bridge cable, which can be used to connect to your motherboard or Corsair Link hub and provide real-time monitoring of fan speed and +12V power delivery via Corsair Link software. The Digital Bridge is included with the 1000W unit and an optional extra for the other models.

Prices start at around £80 for the 450W unit and top out at around £150 for the 1000W model, including a 5-year limited warranty. The range is available to buy now, with the likes of Overclockers and Scan stocking the full range.

Corsair announces "ultra-quiet" RM Series Power Supplies

6 Comments

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Corky42 13th September 2013, 10:59 Quote
Seems odd that the fan is controlled by the amount of load on the PSU and not the temperature, wouldn't it be better to not run the fan until X temperature is reached rather than X load. What happens if you live somewhere really hot, will the PSU cook its self ?
phuzz 13th September 2013, 11:48 Quote
The 750W one is the sweet spot in terms of price:

Power (W) Price (£) W/£
450 78.95 5.70
550 86.99 6.32
650 92.99 6.99
750 99.95 7.50
850 124.99 6.80
1000 149.99 6.67

which is handy as that's one I'm looking at.
Nexxo 15th September 2013, 14:44 Quote
Quote:
Originally Posted by Corky42
Seems odd that the fan is controlled by the amount of load on the PSU and not the temperature, wouldn't it be better to not run the fan until X temperature is reached rather than X load. What happens if you live somewhere really hot, will the PSU cook its self ?

The website states that thermal sensor controls the fan speed.
Corky42 15th September 2013, 15:05 Quote
Would you have a link, as both the Bit-Tech article and Corsairs web site says when under heavy load.

http://www.corsair.com/us/power-supply-units/rm-series-power-supply-units/rm-series-rm750-80-plus-gold-certified-power-supply.html
http://cwsmgmt.corsair.com/media/cms/psu_charts/RM750-FAN-NOISE.png

EDIT: ahh i see now, apparently the fan wont kick in until %40 load, and once it is on the speed is controlled via thermals. Still seems odd to base when a fan starts based on load
Nexxo 15th September 2013, 22:49 Quote
Perhaps it is pre-emptive: once it passes 40% load the temperature starts going up and they want a smoothly flattening temperature curve rather than a sudden shock of cooling kicking in.
theshadow2001 15th September 2013, 23:40 Quote
I like the sound of passively cooled power supply. You could get a higher than needed one and have it passively cool most of the time.

There's plenty of possible reasons to use load instead of temp. The sensor may not be effective at lower temperatures due to passive cooling elements. So sensor doesn't read anything until a certain heat level is reached but you want to kick the fan in earlier than that. Heat /electrical power, its all watts anyway.

Another could be purely marketing. People are more used to dealing with load rather than heat when it comes to the psu. Whats hot cool or normal temps for a psu?
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