Copper heatsink for 1U cooling – Joe
SUMMARY: An interesting design for 1U cooling.
The good guys at Dynatron were nice enough to send a sample of their 1U heatsink, model # DC1U-B02 to test out. In contrast to most heatsinks, this one features a blower rather than an axial fan. The heatsink is a copper skive design, which means that the fins are literally peeled out of the copper base – there are no solder joints with this technique.
The blower is a YS Tech Model #BD125015BB-2F – an 50 x 15mm squirrel cage fan rated at 6.1 cfm @ 7800 rpm, 50 dBA¹ (my noise estimate). I found it to be noisy – I measured its noise at 70 dBA with a Radio Shack sound meter 8″ above the fan, about the same as a Delta 38 (about 69 dBA). It’s safe to use a motherboard fan header (3.6 watts).
The base is a copper baseplate:
I found that when running a fingernail over it, you could feel and hear the polishing marks on its copper base.
The mounting bracket is a good one:
Mounting requires removal of the motherboard; the back plate is held in place with four screws. Once in place, the system is very secure and clipping the heatsink in place is very easy.
I tested the Dynatron DC1U-B02 on an Acorp 4S845A motherboard with a modified P4 1500 to read CPU case temps.
CPU Case Temp
C/W = Delta / CPU Watts