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The Zalman Power Supply - As quiet as it gets

By Robert B.

Before I was blessed with a Zalman power supply, I did have another piece of junk in my PC. Basically when I built my first PC, I used all the extra parts I could get my hands on, including a mediocre power supply.

It ďbarelyĒ got the job done, to say the least.

Over time, as I upgraded my components, the first one I addressed was the power supply. I knew that if I wanted to run great power hungry components, a good power supply would be a wise investment. I wasnít looking to break the bank with a purchase, but around $100 seemed like a good price to shoot for.

While shopping for a power supply, youíll primarily want to look at its available connections and the output wattage. If I wanted to, I could probably pay hundreds of dollars for a 1000 Watt power supply. But generally, one in the 400 Ė 500 Watt range will suit most people fine.

Another benchmark I was looking for was quiet power supplies. But not just quiet, I wanted it to be silent, as power supplies are often noisy components, courtesy of their cooling fans.

Thatís what lead me to quiet Zalman power supplies. I had read a lot about them in reviews, and heard good things; so I decided to give one a try, more specifically the ZM400B-APS model.

After placing my order I received my power supply in a modernized box; sorry, but thereís no brownie points for a ďcoolĒ box from me, Iím tough like that! Inside, in addition to the Zalman power supply, I found an instruction manual (naturally), power cable, cable tie, and a multi-connector.

The last item basically allows you to change a standard hard drive power output into something a system fan could use for power. After inspecting the power supply, I was very impressed by its craftsmanship.

Iím going to skip how to install this here, but feel free to go ahead and read about power supply installation here.

The next few comparisons donít due justice to the features that are included!

Many more power connections are available from the Zalman for a wider array of devices; S-ATA connections are included, for example.

The area of the fan grille is noticeably smaller for the Zalman, which means more air getting in and out of the power supply (to keep things cool).

The vents are much larger for the Zalman than my old power supply, once again, allowing for more cooling.

The only thing that concerned me about this was the larger openings allowing more ambient noise to escape. But actually, these larger areas keep things quieter. How is that?

Well, most of the noise generated by power supplies comes from its fan. The Zalmanís fan automatically changes speed with the internal temperature of the power supply.

So the less heat inside, the slower the fan needs to turn. And the lower RPMs the fan is, the quieter the power supply becomes.

After running this power supply for a few months, I was very satisfied with my purchase. It truly was silent, but now the other noises my PC creates can be heard; mainly the CPU fan and system fans. But these beasts can be tackled another time! (Actually I just upgraded to a Zalman CPU Cooler.)

You could say that the Zalman has lived up to expectations for me. I canít recommend it enough for those of you interested in feeding your power hungry computers while keeping your system cool and quiet.

Click here to purchase a new power supply for your PC.