HuntKey Jumper/R90 300W 80Plus Gold
by Martin Kaffei on March 5, 2011 12:00 AM ESTNoise, Efficiency, and Power Factor
| Sound Pressure Level | |
| Load | dB(A) |
| 10% | 18 |
| 20% | 19 |
| 50% | 22 |
| 80% | 23 |
| 100% | 24 |
| 110% | 26 |
While the HuntKey 300W is audible at high loads, the 1200RPM fan isn't loud. In a typical PC with a closed case, this PSU will be quieter than most CPU, GPU, and chipset fans. If you're after absolute silence, Seasonic's X-400FL will be the better choice, but most users will be quite happy with the low noise from the Jumper 300G. At 10% load (i.e. for a low power HTPC), the fan rotates at less than 650RPM and reaches the limits of our noise monitoring equipment.
Efficiency and PFC
| 115VAC, 60Hz | ||
| Load | Efficiency | PFC |
| 10% | 85% | 0.973 |
| 20% | 88% | 0.975 |
| 50% | 90% | 0.983 |
| 80% | 89% | 0.985 |
| 100% | 87% | 0.986 |
| 110% | 86% | 0.987 |
As always, the power factor correction is high using 115VAC. In addition, this PSU is still more than 85% efficient at 10% load and reaches or exceeds Gold level at 20%, 50%, and 100% load. Efficiency drops a bit once you exceed 80% load, with the maximum result of 90.25% efficiency at 50% load.
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SilthDraeth - Saturday, March 5, 2011 - link
Kind of stinks that they take away the sleeves, and matte black paint for the American version. I guess shrink tubing isn't to costly... But still.SirGCal - Saturday, March 5, 2011 - link
Especially for the very high cost... It's the little things that start to matter at that price. Wraping and a nice finish is part of those things... Bummer too cause I might have considered it otherwise.Mr Perfect - Monday, March 7, 2011 - link
Yes, don't sell yourself short HuntKey. If you have a quality product, put some quality fit and finish on it. The plain looking case and cables makes the US version look cheap.mindless1 - Saturday, March 12, 2011 - link
It's teenagers or young males who think they are still that feel the need to try to impress others with visual interior effects on a PC, and even among those it is a very small # of the market. Most people's cases have a solid side panel w/o window and not only is it totally irrelevant to them whether it is black painted or sleeved, they couldn't even tell you what color their PSU is or whether it is sleeved.Put the PC out of the way and get some art on the wall if looks are important.
JasperJanssen - Monday, March 14, 2011 - link
Well, the colour of a PSU does show out the back of a case, and sleeving has a functional effect, not jsuit a decorative one.HangFire - Wednesday, March 16, 2011 - link
A Gold rated power supply is going to appeal to system builders, modders and aficionado's who take pride in their work."Most people" who use "Most people's cases" with a "solid side panel" will be buying the cheapest P/S available, which won't be this one.
Orville - Saturday, March 5, 2011 - link
Martin,Make it fully modular with a good selection of cable lengths to choose from and I'll pay $100+. Bring on a 200 Watts unit of the same kind and I'll pay the same.
Orville
Martin Kaffei - Saturday, March 5, 2011 - link
Who knows, maybe they will add another version later. I'm sure HuntKey cares about that. Or other manufacturer will.If HuntKey sells a lot of them other brands will follow. I'm looking forward to this situation since 300W Gold with modular cables is more interesting than 500W+ with Platinum.
richardginn - Saturday, March 5, 2011 - link
to really see how much can run on this 300WATT PSU before it becomes worthless.j-g-faustus - Saturday, March 5, 2011 - link
I expect that I can run a moderately overclocked Sandy Bridge 2600K plus a GPU like GeForce GTS 450 (~100 W DC) and still stay below 80% of the 300 W capacity.This is based on my current 2600K@4.1GHz which draws 145 W from the wall with 8 Prime95 threads. Given 80% PSU efficiency this should be ~116 W DC, plus 100 W for a GPU is just 220 W DC total.
Looking forward to this PSU, hoping that we will see more power supplies with low wattage and high efficiency.