Under the Hood
Here are a few pictures showing the layout and components inside the Zalman ZM1000-HP 1,000W power supply. The overall build quality appears to be very good. Both of the main heatsinks have copper heat pipes attached to conduct waste heat away to two arrays of aluminum fins that are cooled by the exhaust air flowing over them as it leaves the backside of the PSU enclosure.
For this high-output model Zalman selected Enhance as their OEM. The ZM1000-HP is based on the Enhance EPS-0300 platform, which was designed to handle models ranging from 850W up to 1,250W. Note the use of dual primary transformers.
The primary section uses two [M] PET Matsushita 270uF caps rated at 420V and 105°C. The dual main bridge rectifiers are mounted on their own dedicated heatsink without any assistance from heat pipes.
The secondary side of ZM1000-HP power supply is populated by Teapo caps (also rated for 105°C) and is dominated by a lot of distribution wiring.