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Date: July 18th, 2005
Article by: Nathan Glentworth (Head Editor / Hardware Reviewer)
Product was submitted by: Hightech
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PRODUCT PICTORIAL & WALKTHROUGH



First off, lets start with the large cooler strapped onto this performance videocard. What HIS did was get Arctic Cooling to custom make a VGA cooling solution based on their ATI Silencer 5. With a 72mm fan spinning at 2000rpms, this cooling solution only put out a sound signature of 0.5 sone which is practically silent when installed into a case and operating. Unfortunately, airflow numbers are not present on HIS's or Arctic Cooling's website. From comparative testing, the airflow is in the 20-30cfm range.


 

 

 

 

 

 

 


The airflow is pushed through a 218.5 x 100 x 31 mm active VPU cooler which has so much cooling area that it requires minimal flow to properly transfer heat away from the core.



The heatsink itself is comprised of aluminum cooling fins soldered to a thick copper baseplate which not only cools the X850XT chip, it also semi-passive cools the top mounted memory modules. There is a tremendous amount of cooling surface area in this cooler making it ideal for a low flow large cooling fan.



Once the heat is removed from the heatsink, it is directly removed from the system through this rear exterior vent. With this solution, all radiant heat from the GPU and top memory modules will not have an influence on internal case temperatures which will probably be well accepted by the overclockers walking among us. Some may not like the fact that this large cooling solution will take up the first AGP slot but if the user doesn't know this yet, you should never use this slot seeing it shares resources with the AGP slot and installing a PCI card there could lead to compatibility problems and lower gaming performance.



Even the bottom mounted memory modules have a thick passive heatsink mounted to keep the modules cool during overclocking. The Samsung GDDR3 modules tend to run rather hot so make sure you have a good amount of case airflow to allow this heatsink to do its' job. Want proof that it will help? Well, I was able to increase the memory overclock by 5Mhz by just adding simulated case airflow to me testbed.

 

 


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