CoolerMaster MasterAir Pro 4 Review

Performance and Testing

CoolerMaster MasterAir Pro 4 Review

Performance and Testing 

The test set up consisted of the following

Intel Kaby Lake i7 7700K 
4.8GHz @ 1.25v, 5.0GHz @ 1.3v
Asus Maximus VIII Ranger
2x8GB Corsair Vengeance LPX Memory 3200MHz
CoolerMaster V650
Corsair Force GT 60GB
Coolermaster MasterCase Pro5 

 

As was the case with our previous set up, we'll be testing our coolers at varying levels of overclock and increasing levels of voltage. The increase in volts means an increase in heat within the CPU, and it's this heat that the coolers need to dissipate. 

Continuity is very important in testing, and for this reason we keep as many of the potential variables as locked down as possible.  We will be using OCCT in Linpack X64, AVX compatible with all logical cores tested and 90% free memory utilised. The test is set up to run automatically with just a few clicks to set it going.  A 10 minute idle followed by 30 minutes of testing and a 5 minute cool down is the order of the day and brings the total test time per clock speed to 45 minutes.  So as to remove subjectivity in determining whether a CPU has failed, OCCT is set to stop the test and register a fail should the max temp exceed 80 degrees.  As with the socket 2011, in testing we noted that if even just one of the cores exceeds 82 degrees OCCT halts the test and a fail is recorded.

 

4.8GHz

Having had a fiddle with the volts we achieve a nice stable 4.8GHz overclock at 1.25 Volts (stock for most boards).  This level of overclock is going to give us a pretty good idea of how well coolers will perform when under a bit of stress.  We'd expect everything to make it through, however some may come close to the automatic 80 degree cut off wire.

CoolerMaster MasterAir Pro 4 Review

 

5.0GHz

A bump to 1.3v saw us acheive a solid 5.0GHz Overclock.  Only the very best coolers are going to perform well with this amount of heat being pumped into them, and even then, some of them will be close to the automatic cut off point.  5.0GHz might not seem like a huge increase on 4.8GHz, but the additional heat generated by that seemingly small bump in core voltage does seem to challenge the coolers that bit more, and so as before it's here we start to separate the men from the boys, as lesser coolers may not able to disperse the increased heat effectively.  Only the cream of the crop will excel at this level.  Not unexpectedly, the Pro4 Didn't make it into this elite group.

 

Sky Lake Testing 

The test set up consisted of the following

     Intel i7 6700K Stock (4.2GHz)@ 1.2v, 4.6GHz @ 1.3v, 4.7GHz @ 1.344v, Asus Maximus VIII Ranger, 2x4GB Corsair Vengeance LPX Memory CoolerMaster V650, Corsair Force GT 60GB Coolermaster MasterCase Pro5

 

As was the case with our previous set up, we'll be testing our coolers at varying levels of overclock and increasing levels of voltage.  The increase in volts means an increase in heat within the CPU, and it's this heat that the coolers need to dissipate. 

Continuity is very important in testing, and for this reason we keep as many of the potential variables as locked down as possible.  We will be using OCCT in Linpack X64, AVX compatible with all logical cores tested and 90% free memory utilised. The test is set up to run automatically with just a few clicks to set it going.  A 10 minute idle followed by 30 minutes of testing and a 5 minute cool down is the order of the day and brings the total test time per clock speed to 45 minutes.  So as to remove subjectivity in determining whether a CPU has failed, OCCT is set to stop the test and register a fail should the max temp exceed 80 degrees.  As with the socket 2011, in testing we noted that if even just one of the cores exceeds 82 degrees OCCT halts the test and a fail is recorded.

 

4.2GHz

It makes sense to start with the stock speed, and with stock volts, as this represents a good baseline from which to measure our results.  As always, rather than leave the setting on Auto, we've actually dialed in the stock voltage we require, in this case it's 1.2 volts for a nice stable vanilla 4.2 GHz.  Although these low volt low overclocks represent a good baseline to start from, they're not where the actions at, so for that we'll need to add more volts.

CoolerMaster MasterAir Pro 4 Review

 

 

4.6GHz

To get to 4.6GHz we had to up the volts to 1.3Volts  At the higher levels of heat generated by the increase in voltage required for the 4.6GHz overclock, fan performance, although still a factor becomes less critical, replaced instead by a coolers ability to conduct the heat up the heat pipes and more crucially the total surface area of the fins enabling convection to the atmosphere.  In the case of AIOs and water cooling the surface area of the radiator and the efficiency of the contact plate begin to play more of a factor.

CoolerMaster MasterAir Pro 4 Review

 

 

4.7GHz

Upping the volts still further we achieve a stable 4.7GHz overclock at 1.35v.  This might not seem a huge increase on 4.6GHz, but the additional heat generated by that seemingly small bump in core voltage does seem to challenge the coolers that bit more, and so as before it's here we start to separate the men from the boys, as lesser coolers may not able to disperse the increased heat effectively. Again we see a jump of 10 degrees or so from the figures at 4GHz.  Only the cream of the crop will excel at this level.     

CoolerMaster MasterAir Pro 4 Review  

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Most Recent Comments

10-04-2017, 06:50:34

King of Old Old School
IMO never understood why you would want to put one of these cheaper CPU coolers on a socket 2011/V3 if you spending that much money on the X99 motherboard you should be going with an AIO or a higher end CPU cooler.Quote

10-04-2017, 14:45:00

warpuck
When a AIO clogs up you toss it. When a Noctua C/D 14 clogs up, remove fan and suck out the clog with brush and vacuum cleaner. The fan should last 5 years or more. So the only thing that is left with a AIO is the fans. DIY water has got to be cleaned and drained if you use flexible tubing annually. Rigid maybe once every 3-5 years drained and cleaned. You still have to clean the dust out of the radiators 1 or 2 twice a year. They can both be moved to another socket style. I have had three different water cooler set ups and will not be using water again. A Noctua C or D 14 is almost as good as 240mm AIO and better than most if not all 120mm AIOs. If your ambient is 40C water is better, But 30C or less no real advantage. Truth I don't get any more DAILY Ghz out of a FX-8350 with water than I do with a C14Quote

10-04-2017, 15:17:47

NeverBackDown
Quote:
Originally Posted by warpuck View Post
When a AIO clogs up you toss it. When a Noctua C/D 14 clogs up, remove fan and suck out the clog with brush and vacuum cleaner. The fan should last 5 years or more. So the only thing that is left with a AIO is the fans. DIY water has got to be cleaned and drained if you use flexible tubing annually. Rigid maybe once every 3-5 years drained and cleaned. You still have to clean the dust out of the radiators 1 or 2 twice a year. They can both be moved to another socket style. I have had three different water cooler set ups and will not be using water again. A Noctua C or D 14 is almost as good as 240mm AIO and better than most if not all 120mm AIOs. If your ambient is 40C water is better, But 30C or less no real advantage. Truth I don't get any more DAILY Ghz out of a FX-8350 with water than I do with a C14
Ever use a AIO?
I've used one virtually 24/7 for nearly what 2 years now? Never had a hiccup. This is an older 2nd gen AIO. Still going strong. The newer ones are even more robust. Really they will last as long as fans will.Quote

14-04-2017, 11:37:37

warpuck
Used a AIO 24/7 folding with a OCed FX-8350 (4.7Ghz). (200 watts +) 24/7 operation broke down the coolant corrosion inhibitors and it clogged up after about 1 year of that kind of abuse. A premium Noctua does almost as well as a AIO and it can be cleaned with small paint brush and a vacuum cleaner. A AIO is sent back if it is under warranty. Performing surgery on it is tedious, if it is out of warranty, plus it may not work again anyway. Considering that a Coolermaster 120mm x 40mm cost almost the same as Noctua 14 at the time? Water does cool better but it does have one more working part to fail and pumps will fail. I have 2 dead pumps now. Vapor condensation cycle has no moving parts, fans are plentiful and cheap enough to keep a spare around while you wait 50,000 hours for it to fail. I still have the Coolermaster fan that came with the AIO in use as a case fan. The 8350 is still happy folding @4.6 Ghz cooled by a Noctua NH-C14S with its companion GTX 690. Both cooling items have been discontinued. Only one still works. I have come to the conclusion that water is great if your system is only used for a few hours a day to squeeze the max out of your system.Quote
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