Zalman TNN500AF: Closer Look at the Interior
Screws for a hex-nut wrench are left in the past. Today, you need just an ordinary cross-head screwdriver – that’s all! There are also fewer screws that fasten the side panel – most of them are replaced with guide cones.
Like before, the side panel hangs on “hinges”, but these are now located at the front of the case. So, you open the side panel to another side.
Thanks to that, it became possible to place a lock at the back panel. This lock prevents an unauthorized opening of the case.
The side panel carries ledges for hard disk drives, optical and floppy drives. The PSU is found below them.
The TNN500AF uses an absolutely noiseless 400W PSU with PFC. The heat from the PSU’s components is transferred to the side panel via a thick aluminum bar:
The basic characteristics of the PSU are listed on its casing:
This unit supplies good currents on +3.3v, +5v and +12v power rails (20, 20 and 16 amperes, respectively). On the other hand, “ordinary” high-quality 400W PSUs ensure a higher current in the +5v line as well as in the most busy +12v line (up to 18 amperes and higher).