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CoolerMaster Hyper 6 (KHC-V81-U1) Heatsink Review

Former staff writer    -   June 11, 2004


Installation, Testing, & Problems
Just a note.. This is a P4 and K8 heat sink. For this review, we will be installing, testing (well, we were going to), and reporting problems with this heat sink using an AMD 64 (K8) system.

At the beginning of may, I reviewed a Foxconn motherboard. The day I finished the testing for that review, I started working on reviewing this heat sink. That's how long I've been having problems with this beast.

The first problem I ran into was that the Hyper6 doesn't use the standard type mounting equipment (retention frame) found on the Athlon 64 motherboards. While it's not a huge deal here, the problem was (which is also noted in the review) the Foxconn motherboard's retention frame could not be removed. Below you can see the standard frame (left), and the one that came with the Hyper6 (right).

  

The blame for this isn't all CoolerMasters. They didn't follow AMD's guidelines. Like I said no biggie here. We'll also blame Foxconn for having a board where you can't change the frame.

Thankfully I had the Chaintech ZNF3-150 motherboard that I could use. Again, we still have to remove the standard retention frame, and use the one that came with the Hyper6.

With the new frame now attached to the motherboard, you can apply your thermal compound to the CPU and to the base of the heat sink.

Before you go to put the heat sink on the CPU and try to fasten it, you'll have to remove the fan (if you attached it). This heat sink cannot be mounted while the fan is on the heat sink. - CoolerMaster's instructions make note of this as well.

So, it's time to actually fasten the heat sink to the retention frame. The first problem is you now have a 2lbs metal block (for the most part) sitting on top of you're CPU. Not the end of the world, till you go to fasten down the two clips.

Trying to fasten the clips was like trying to push a pop-rivet into place using only your thumb. In fact, so much force was exerted trying to attach the Hyper6 to the retention frame, I didn't think there was any way the CPU could have survived. Thankfully, after all was said and done, the system booted.

  

If you managed to get the heat sink mounted, you're now free to attach the fan (or fans).

Just think... this heat sink was so much fun to install the first time, if you ever plan on moving your computer (e.g. to another room, or LAN Party), you'll have to remove the heat sink, move the system, and reinstall the heat sink. - Same thing you are suppose to do with many other heat sinks, just more painful with the Hyper6.

Since the heat sink was installed outside of the case, it wasn't till the motherboard was put back into the case, and the components were put back into place that I noticed the next thing.

No matter which spot you put the fan on, you're not going to get a whole lot of air flow into the heat sink. If you had a full tower case, this wouldn't have been as much as a problem, since you'd have more room between the PSU and the heat sink. However, this test rig is a mid-tower (Kingwin blah blah blah), and space is precious.

  

Thankfully, the Hyper6 does clear the row of capacitors to the side of the zif socket, however if you'll notice, the heat sink is dangerously close to my system memory. With this setup, you'll actually be increasing the temp of the memory, which isn't something any of us want to do. Might as well try to cool the RAM with a blow torch.

  

The real problem I had with the Hyper6 wasn't something I encountered till a few days after installing the heat sink. Once I began to do the load temperature testing, I first had a problem with the system shutting down due to overheating (appx 60C). I adjusted the motherboard's setting, and tried to test again. This time, I came across everyone's favorite BSOD.

Figuring that I had messed up the thermal compound when attempting to attach the heat sink, I decided to reinstall the heat sink... 4 separate times. Each time, I encountered the same issues. After that, I'd had enough of this thing.

Due to the awkward and difficult mounting method of the Hyper6, it is virtually impossible to mount the Hyper6 without rubbing the thermal compound around, which of course is going to hinder the cooling process. While I can’t say for certain whether overheating of the RAM or the CPU was the culprit giving the BSODs (I’ve seen it many times over the years, and I’m sure many of you have as well), it could be one or both of them. I do know without a shadow of a doubt, that the problems were directly related to the Hyper6/cooling. Install any other heat sink, and the system is fine, install the Hyper6 and “Houston we have a problem”.



  1. Introduction, Features, Specifications, Fan Specifications & What you get
  2. A Closer Look
  3. Installation, Testing, & Problems
  4. Conclusion
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