TennMax VIVA STF
 
TennMax became famous with their "Lasagna" and "Stealth" series graphics card coolers. But they have also been offering dual fan CPU heatsinks targeted at overclockers for some time.
 

The VIVA STF (for STF stands for Super Twin Fan) is a "covered" heatsink, with two 50x15mm YS Tech ball bearing fans. The heatsink itself is quite small, it is the same heatsink that TennMax has been using for their VIVA P2 and VIVA TF heatsinks. The VIVA STF is very compact, will fit all motherboards, and does not block a DIMM slot.

The VIVA STF comes with thermal compound.
 

The fans

 
The "small" YS Tech fans used in the VIVA STF spin at 6750rpm; they are a bit louder but also a bit stronger than the Delta fans used on the Global WIN FKK50.
 

Installation

 
The VIVA STF comes with a very practical clip - like most other clips, it allows tool-free installation, but unlike most other clips it also allows the user to uninstall the heatsink tool-free.
 

Conclusion

 
The performance of the VIVA STF isn't exactly convincing. This is definitely not a heatsink recommended for overclocking. The VIVA STF might be a good choice for applications where a very compact cooler is required.
 
TennMax VIVA STF at a glance
Fan: Two 50x15mm YS Tech
Fan rpm (measured): 6750
Weight: 250g
Advantages
  • Light and compact
Disadvantages
  • Not very efficient for a dual fan heatsink
The Global WIN VEK32 Final Words
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