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Archive for the ‘psu’ tag

Does anyone really need a 1Kw PSU?

Posted on 7th May 2010 at 09:44 by Richard Swinburne with 114 comments

Richard Swinburne
Having dropped into Antec recently (not literally, I used the lift), I noticed the company was preparing a thought-provoking demo PC - it was to show that even its TruePower 550W 80Plus Bronze rated PSU can power a system that includes a GeForce GTX 480 and Intel Core i7-980X CPU!

At idle the system used a not inconsiderate 172W of power, but under load that raised to 507W - still within the power rating of the PSU, although pushing it to 92 per cent use.

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PSU testing and a visit to Be Quiet! headquarters

Posted on 26th Jun 2009 at 15:35 by Richard Swinburne with 4 comments

Richard Swinburne
In an industrial park about 15km outside Hamburg, I was shuttled via taxi to Listan HQ in Germany. This was right after CeBIT and I was there to test PSUs and meet the people behind Listan. The company oversees several others - including Be Quiet! for PSUs and Revoltek for coolers and chassis.

Many of Listan's employees came from competitors such as Enermax and Maxpoint (Tagan, Seasonic etc) just down the road - by PSU industry standards Listan is relatively new, however it's more recently got its act together and made big strides supplying some great Be Quiet! PSUs for the UK market. (On the other hand, the Revoltek brand is... well, it needs development still, in my opinion. It's certainly not to our UK tastes in terms of aesthetics and ownership desirability.)

Generally at Listan, from three to nine people work in each department. The design room is small and simple, and looks over many white boards. It's focused on developing a few key products rather than spamming the market with clones.

Listan's warehouse is, as you'd expect from the Germans, immaculate. Clean, efficient... and then I turn up and sprawl a dozen PSUs across the desks, floor, and most places where they'd left space. Ha!

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80Plus Gold - this year's fad in the PSU industry

Posted on 12th Mar 2009 at 15:09 by Richard Swinburne with 2 comments

Richard Swinburne
Last year we had 12V DC-DC at CeBIT and then 80Plus Silver at Computex, but this year CeBIT is awash with companies showing off 80Plus Gold parts due out in the next few months. Gold is an efficiency standard of 87 to 91 percent, with a 0.9 PFC across the whole range, whereas Silver was only a few stops shorter at 85 to 87 percent.

We have spoken to almost every major PSU manufacturer to discuss what they see in 80Plus Gold: if it’s important or just a marketing fad for the industry.

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Exploring PSU Design and Testing with Cooler Master

Exploring PSU Design and Testing with Cooler Master

Ever wondered how PSU manufacturers test and certify their PSUs? Cooler...
Mod of the Month November 2014 in association with Corsair

Mod of the Month November 2014 in association with Corsair

We've chosen six of the best in-progress projects and they need your votes

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