Feeds

CoolerMaster 900W PSU grabs top energy efficiency rating

80plus grants silver status

Secure remote control for conventional and virtual desktops

PC power supply specialist CoolerMaster has become the first manufacturer of gaming-friendly PSUs to win a Silver rating from US energy efficiency monitor 80 Plus.

CoolerMaster's RS-900-AAAA-A3 - part of its Ultimate line - is rated at 900W. That's the sort of power output you need to run a top-of-the-line processor and a couple of graphics cards.

The company's not the first PSU maker to achieve 80 Plus Silver certification - both NXP Semiconductor and Dell have, between them, three PSUs on the list. But these are rated at just 255-270W.

CoolerMaster Ultimate 900W

CoolerMaster's Ultimate: very efficient

The 80 Plus Silver rating requires PSUs to show an energy efficiency of at least 85 per cent went measured at 20 per cent, 50 per cent and 100 per cent loading.

The organisation's Gold rating - 87 per cent efficiency at 20 per cent loading, 90 per cent efficiency at 50 per cent loading and 86 per cent efficiency at 100 per cent loading - has yet to be attained by a PC PSU.

The RS-900-AAAA-A3 scored an average efficiency of 86.52 per cent and was rated as 88.14 per cent efficient at 50 per cent loading. That half-way loading is considered a typical usage by 80 Plus' tester, the Electric Power Research Institute, based in Knoxville, Tennessee.

You can see the CoolerMaster PSU's test sheet here (PDF).

Related Review
Lenovo ThinkCentre A61e green PC
Nokia 3110 Evolve eco-friendly mobile phone

Choosing a cloud hosting partner with confidence

More from The Register

next story
4K-ing excellent TV is on its way ... in its own sweet time, natch
For decades Hollywood actually binned its 4K files. Doh!
Oi, Tim Cook. Apple Watch. I DARE you to tell me, IN PERSON, that it's secure
State attorney demands Apple CEO bows the knee to him
Apple's big bang: iPhone 6, ANOTHER iPhone 6 Plus and WATCH OUT
Let's >sigh< see what Cupertino has been up to for the past year
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Apple's SNEAKY plan: COPY ANDROID. Hello iPhone 6, Watch
Sizes, prices and all – but not for the wrist-o-puter
DARPA-backed jetpack prototype built to make soldiers run faster
4 Minute Mile project hatched to speed up tired troops
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.