An OK P4 heatsink for “normal” cooling – Joe
SUMMARY: An OK heatsink balancing performance vs noise.
The kind folks at Vantec were nice enough to send a sample of their latest P4 copper heatsink, the Vantec CCK-7025, also called the “Copper X 478”. It features 53 thin fins (about as thick as an index card) soldered onto a 4 mm thick copper base, measuring 67 x 83mm – lots of cooling surface area.
The fan is an YS Tech Model #FD1270255B-2F – a 70 x 25mm unit rated at 33 cfm @ 4000 rpm. I found it to be tolerably quiet – I measured its noise at 60 dBA with a Radio Shack sound meter 8″ from the fan’s intake, substantially less than a Delta 38 (about 69 dBA). It’s also safe to use a motherboard fan header (2.3 watts).
Considering its design and the potential for better performance, I also tested it with a YS Tech Model #FD1270259B-2F – a 70 x 25mm unit rated at 6.24 watts, 46 cfm @ 6000 rpm. I measured its noise at 67 dBA with a Radio Shack sound meter 8″ from the fan’s intake, close to a Delta 38 (about 69 dBA). The fan I had ran at 6585 rpm – about 50 cfm.
The base is not particularly well finished:
When I ran my nail over it, I could feel and hear ridges – lapping this base makes sense and you might gain a degree or two in performance.
The clip was a breeze to mount – push down on one side, engage the retention base, then push down on the other and it’s on – simple and secure.
In summary, an all-copper heatsink with a very secure, easy to use clip.
I tested the Vantec on an Acorp 4S845A motherboard with a modified P4 1500 to read CPU case temps.
CPU Case Temp
|Acorp 4S845A, 4274 rpm|
|Acorp 4S845A, 6585 rpm|
C/W = Delta / CPU Watts