Globalwin is one of the top manufacturers of high quality heatsinks. 2CoolTek was nice enough to send over one of Globalwin’s newest, the CAK-II 38. This heatsink has a completely copper base which is single copper design. Copper heatsinks usually perform better than those made of aluminum or other materials.
The Globalwin CAK-II 38 comes in a sturdy box, in fact this heatsink was packed the best I have ever seen. I don’t think that there is any way that this thing could be damaged in shipping.
As I opened the box I was surprised to see so much inside, you get a lot when you buy this heatsink. You get the base of the heatsink, the shroud with the Delta fan, 4 pushpins which attach the shroud to the base, the clip, a 3-4 pin adapter with RPM monitoring, a manual, and a case badge
Below are all of the specifications for the fan, heatsink, and clip. As you can see the fan is a Delta 38CFM fan which spins at 7000 RPM and has a noise level of 46.7 dB. The heatsink like I mentioned before is made of solid copper.
|Fan ( Per Fan )|
|Operation Voltage||DC 10.2 ~ 13.8 V|
|Rated Voltage||DC 12V|
|Rated Current||0.39 A MAX|
|Input Power||4.68 Watt MAX|
|Bearing System||Two Ball Bearing|
|Fan Speed||7000±15 % RPM|
|Air Delivery||38.4±15 % CFM|
|Noise Level||46.7±2 Dba|
|Fan Safety||UL Approved|
|Fan with RPM signal output||Yes|
|Dimension||60 x 60 x 30 mm|
|Material||Steel SK7 ( Quality Material Clip )|
|Thermal Interface||High thermal conductive interface|
|Connector||Molex 2510 / 2695 3Pin|
The base of the heatsink is of solid copper construction. The Globalwin CAK-II 38 has 2 rows of 37 fins, which gives you a total of 74 fins.
The Globalwin CAK-II 38 comes with a thermal pad installed rather than thermal paste. These thermal pads are very poor for conducting heat and I would suggest to buy some thermal compound if you are looking to overclock.
I removed the pad because I will not be using it for testing later. As you can see the base is pretty well finished, there are only very minor blemishes which should not hinder performance at all.
The top of the unit is the shroud and the fan which is connected to it. As you can see one side is shrouded and the other is not.
The clip of the heatsink is one that I don’t particularly care for. You need to use a screwdriver to attach it to your socket, I don’t like this because there is a danger of the screwdriver slipping and damaging the motherboard.
To attach the top of the unit to the base 4 pins are provided which are pushed through 4 holes of the shroud into the 4 holes on the base, I found that these pins did not hold the top to the bottom as well as they should have. After I pushed them all the way in they were not tight, this should probably be addressed in the future, in any case they did the job and worked