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Thermaltake ISGC-300 CPU Cooler Review



Overall this is a very nice CPU cooler. When the fan was set to the lowest speed, it was nearly silent; in fact, I had to keep checking to make sure it was running. When pushed up to the highest speed, the cooler was still very quiet. My case fans were louder than the ISGC fan. Temperature-wise, the ISGC-300 did very well. With the fan speed maxed out, the cooler matched or beat the Titan Cool Idol in all but one temperature check - and even that was very close. When compared to the stock cooler, you can see big differences - especially when overclocked to 3.8GHz, where the stock cooler kept blue screening and restarting the system. When installed on an AMD board, installation is actually quite simple. It only took me four screws and less than 60 seconds to install the cooler; where on some, like the Cool Idol, it takes me about 10 minutes to get that thing installed.

My only qualm with the ISGX-300 is that when installed, it interferes with tall memory sets, such as Corsair with the DHX heatspreaders. So, if you have that memory, you are out of luck because the cooler cannot be mounted in a front to rear facing way - only in a top to bottom facing way. If the cooler could have been mounted with the longest sides up and down, and the fan to the rear, then tall memory could fit and there would be no problem. It would have been nice to have a second set of fan retention wires included, in case the user wanted to purchase a second ISGC 12 fan and mount it on the other side of the cooler for maximum cooling. If you are looking for a great performing cooler that is nearly silent, then the ISGC-300 will make your day.



  • Great cooling and airflow
  • Very quiet even on high setting
  • easy to install on AMD boards
  • Uses new ISGC fan



  • Interferes with tall memory
  • Cannot mount front to back
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  1. Introduction & Closer Look
  2. Closer Look (Continued)
  3. Specifications & Features
  4. Testing
  5. Conclusion
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