Thermaltake Silent 1156 Heatsink - Testing the Silent 1156

Article Index
Thermaltake Silent 1156 Heatsink
Bundle, Features and Specs
Silent 1156 Installation and Setup
Testing the Silent 1156
Final Thoughts


As we head on into testing, we are only able to compare the Silent 1156 from Thermaltake with the stock cooler at this point.  I'm sure that we all know how this is going to end.  The Thermaltake Silent 1156 should win.  I won't keep you in suspense.  It does.  There are a few other interesting things worth noting here regarding 1156 Core i7 CPU cooler testing however.  We left the "Turbo" mode enabled and allowed the CPU to scale from its slow "idle" speed of 1.2GHz to the 3.0GHz thanks to dynamic CPU scaling.  Another thing to note here is that the ASRock H55DE3 motherboard seems to want to run the FSB at 138MHz instead of the default 133MHz.  This gives us a slow speed of 1242MHz and a high speed of 3035MHz.  The important thing is that both heatsinks have the exact same configuration, thermal paste and ambient conditions to deal with.

Stock Idle
Stock Idle
Silent Spirit Idle
Silent 1156 Idle
Full Load Stock
Full Load Stock
Full Load Silent Spirit
Full Load Silent 1156


Here comes the testing results...


The fan speed was kept at full speed through all of the tests and this shows what the cooler is capable of.  We thought of running low-speed tests, but both cooler are totally silent at slow speed and the stock cooler is only slightly audible over other system fans at full speed.  The Thermaltake Silent 1156 stays silent through all tests.

Silent 1156 Performance

While there is 5°C between the two coolers at idle (no CPU load) the difference climbs to an incredible 27°C (50°F) at full load.  What makes this even more incredible is the fact that the stock cooler allows the CPU to hit its Tj. Max temperature of 99°C (210.2°F)!  While the new Core i7 CPUs are cooler than other CPUs, the stock cooler is pathetically small and when we ran Prime95 for more than 10 minutes we hit the maximum temperature of the CPU.  To its credit the system ran stable, but keep in mind that this is on an open bench.  Also consider the fact that if you're running Folding @ Home, the CPU would be at maximum temperature for hours and this would most certainly kill the CPU or at the very least cause major system instability in the long term.