Scythe Susanoo 12 Heatpipe 4 Fan SCSO-1000 CPU Cooler Review - Installation and Testing

 

Installation

Installation is straight forward, but it's not the easiest of bolt-through brackets.  It requires a bit of assembly before it can be attached, but it was a pretty effortless overall.  The size made it a bit difficult to do with one person, but it was manageable.  One note though, make sure you have a case that has a CPU retention hole in the motherboard tray, as you will almost certainly NOT be able to secure the top motherboard screws or be able to connect the CPU power cable(s).  I installed it in the new CM Storm Enforcer chassis, and it fit great!  I did have to remove the rear fan, as there was not enough clearance for it.  Other than that, I had no clearance or fitting issues.

Testing

Idle Testing

For idle testing, we booted up the system, allowed the CPU to stabilized at below 2% usage, and then tested for 10 minutes, and we used RealTemp to record the CPU temperatures.

Scythe Susanoo                                                                                                         Noctua NH-C14

 

Load Testing

For our load tests, we used Prime95 to stress the CPU to 100%, and let it run that way for one hour, and then use RealTemp to record the temperatures

Scythe Susanoo                                                                                                         Noctua NH-C14

 

Overclock Testing

Using the same methods as before for idle and load except with a 25% Overclock, (3.3GHz, up from 2.66GHz stock)

Idle

Scythe Susanoo                                                                                                         Noctua NH-C14

Load

Scythe Susanoo                                                                                                         Noctua NH-C14

 

Results

Idle temperatures between the Scythe Susanoo were very comparable, with the Noctua NH-C14 being a bit lower in both the stock and OC scenarios, but only marginally.  The Susanoo and the NH-C14 performed equally in the loading cases with stock clock speeds.  The NH-C14 edged the Susanoo in the overclocked load tests by a non-trivial 4 degrees Celsius.  One thing I've often seen with coolers which are meant to dissipate large amounts of heat is that their efficiency in heavy thermal loads come to "life" more when their engineering load is applied, and it may have been optimized for heavy thermal loads.  We have stability issues when overclocking our current testbed above ~30 percent over stock speeds, which prevented us from pushing the Susanoo.  It could very well be that a mild ~25% overclock doesn't provide enough of a thermal load to show off the true efficiency of it's large stature, and that an "extreme" overclock may have the Susanoo start to pull away.  We will be on the lookout for more extreme loading tests and will update when we have more information on this.  Keep in mind that I didn't actively compare other system temperatures which may have benefited from the wide span of the Susanoo as well.

Update:

Examining the results from other independent testers, our hypothesis seems correct, as when steeper overclocks are applied, the Susanoo is seen to beat the Noctua NH-D14, one of the air cooling kings.

 

Despite having four fans running, I was surprised at how quiet the Susanoo was.  The Slipstream fans do a great job, and weren't noticeably louder than many of the other coolers I have used.

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