the fan sucks tho- it's only like 3500rpm, and since it only pushes like 18cfm, it doesn't help much... the heatsink itself gets nice and warm, but I don't think the fan pushes enough air to remove the heat effectively... in my KX7, it was reading 120*F in the bios after 1hr of Memtest86 and a reboot... that's with the stock silver thermal pad and fan tho... you can add 25*+ to that temp to get the actual temp, due to the location of the probe on the kx7... so it's a lot hotter than I'd like, but it's passable... i'll bet it'd do well with a big delta or something on it tho... maybe I'll try it with the 7krpm 60x38 OCZ/Delta I have around here...
muddocktor- it MUST be copper... either that or steel or tungsten
'cause that heatsink is H-E-A-V-Y for such a little guy...
I typed the above ^ about 10 minutes ago... then I went downstairs and grabbed my dad's digital balance to see just how heavy these things are... I also measured them with my dad's digital calipers...
| Heatsink | Construction | Weight | Dimensions (LxWxH) |
| "Old" Stock heatsink | Skived Aluminum | 161g |
63mm x 62mm x 36mm |
| "New" Stock heatsink | Unknown | 260g | 60mm x 62mm x 31mm |
| Globalwin CAK-38 | Extruded Copper | 422g | 60mm x 60mm x 35mm |
| Hercules Gladiator II | Soldered Copper | 359g | 75mm x 58mm x 35mm |
| Thermalright AX-7 | Soldered AlCu Hybrid | 433g | 78mm x 77mm x 42mm |
| Thermalright SLK-800A |
Soldered copper | 518g | 88mm x 55mm x 40mm |
Notes:
- The stock heatsinks were measured with the shrouds in place
- The CAK-38 was weighed with the stock AMD clip because the Globalwin one broke
- The Gladiator was measured without the shroud because it was damaged
- Length is the clip side, Width is the other side, Height is the thickness from the base to the top of the fins/shroud.
- The SLK-800A was measured from the base to the top of the lowest fins, and at the maximum Length & Width
- The protective film on the SLK-800A was left in place
- While the balance and calipers read to 2 decimal places, manufacturing variances make the last 2 places irrelevant.
So the new stock heatsink weighs a good bit more than the old one does, even though it's almost exactly the same size.
