The Seasonic S12 series is one of the best PSU out there. I probably did about 3 months worth of research before deciding on buying the Seasonic S12 500.
Just remember that it take more than just a single component to make a quiet PC. For example:
1. The Antec P150 is a good case for building a quiet PC because you can suspend two drives in the drive cage. This case and the P180 are both highly rated at SPCR.
2. As for hard drives, Samsung Spinpoint series are quietest hard drives you can buy. Seagate also makes hard drives that nearly rivals the Spinpoint series. The trade off is performance. Seagate HDD may be slightly louder, but they also perform better. Hardcore silent PC builders uses the more expensive notebook HDDs in thier computers.
3. Heatsink/Fan - The Scythe Ninja, nearly dominates the HSF recommendations at SPCR because they can effectively cool a X2 3800+ without the fan in a case that has good airflow. It should also cool the E6600, at stock speed, without the fan. I will be doing so once I get all my parts together. The Zalman 9500 is also recommended at SPCR but not nearly as much as the Ninja because of the fan. The Zalman 7700 and 9500 are both louder than the older Zalman 7000. Also it is very difficult to replace the fan.
Anyway, you can find more about silencing your PC over at SPCR.
im guessing by the model number that it's 330W? those silent PSUs are silent usually b/c theyre low watt.
Incorrect. The Seasonic S12 series is quiet because of design. First, they use a single quiet fan, I believe it's an ADA fan. I think I read a rumor that they switched over to Yate Loon fans, but that has yet to be confirmed. Second, and by far more important, those PSU are very efficient, typically between 77% and 82% depending on the load. Efficiency means less electricity from the AC outlet is wasted as heat. Since there is less heat, the fan can spin slower, thus reducing noise.
[quote"Phreejak"]
a 330? What computer are you running, a commodore 64?
[/quote]
As long as careful consideration is placed upon the components, the Seasonic S12 330 can be sufficient. It's not a PSU for the hardcore gamer who wants to drop in a 7900GX2 or X1900XTX. As long as low power components are used the system should be fine. For example, the S12 330 is more than capable of handling a Core 2 Duo E6600 (@ 2.4GHz) and a 7600GT with a couple of 250GB hard drives, and a DVD Burner without any problems.