ARKUA 628 Heatsink

Test Bed

• AMD Thunderbird 1.0GHz @ 1.4GHz - 1.75 volts

• ABIT KT7A Mainboard

• 256 megs Infineon PC133 SDRAM

• ASUS V8200 GeForce3

• 20GB Western Digital ATA100 7,200 RPM HDD

• Senfu open work station housing.

And the results…

And for you metric types.

 

I was impressed with the performance of the 628 and its besting the CCK-6035 by 0.1 degrees C with a lower speed and volume fan.  Then it hit me that something was wrong.  Back in November when we tested the 6228 we came up with a 0.2 C difference between the CCK and the Arkua.  With the Arkua coming out on top.  The problem of these performance differences is their being relatively equal with the 6228 and the 628 is that the 6228 was running a 38CFM fan and the 628 a 23CFM fan.  No way could this be right.  So I dug out the Arkua 6228 and tested it and the Arkua 628 again and had them run within 0.2 C of one another in a each of four runs.  I then switched the fans on the two units and came up with this.

 

What does this mean?  My thinking can only take me so far to speculate that the 6228 unit may have been damaged prior to our original tests or that the manufacturing process has improved since.  We have requested some additional 6228 units from Arkua so we can find our for sure what is going on with these results.

Conclusion

I'm going to get back on task and address our Arkua 628 and defer the rest until a later date.  The copper core coupled with the ThermoEngine fin design is a winner.  The performance of the Arkua 628 being superior to the Vantec CCK-6035 when its fan is only blowing two-thirds the air, speaks volumes.  Not to mention a sound drop from 46dBA with a 7k fan to the more humane 33dBA of the Arkua. 

Pros

• Excellent thermal performance

• Don't need earplugs to use it.

• Outstanding clip

• Copper core instead of a copper body means much less weight.

Cons

• Questionable price and availability

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