Scythe Andy Samurai Master vs. Thermaltake MaxOrb
by Wesley Fink on June 4, 2007 5:00 AM EST- Posted in
- Cases/Cooling/PSUs
Noise
For many enthusiasts upgrading cooling the goal is maximum stable overclock, and they will live with the inconvenience of a louder system. For other users silence is the most important factor, and these users will forgo maximum overclocking if that increases system noise levels.
There are virtually no power supplies that do not include a fan. While Zalman and a few others do make an expensive fanless power supplies, we have not seen a fanless unit larger than 500W, or one that would be used for seriously overclocking a system. With that in mind the noise level of the system with all fans turned off except the power supply was measured. The power supply used for the cooling test bed was the OCZ PowerStream 520, which is one of the quieter of the high performance power supplies.
We have also measured the Corsair 620-watt and Mushkin 650-watt power supplies which are reported to be quieter than the OCZ. Both the Corsair and Mushkin are indeed quieter at idle or start up speed. However, as soon as load testing begins and the PSU fan speed kicks up the measured noise level is almost exactly the same as the OCZ PowerStream 520 watt power supply.
We are currently in the process of evaluating "quieter" power supplies for an update to our cooler test bed. We will make changes to that test bed as soon as we are confident in the noise measurements and test procedures with a variable speed quiet PSU. We plan to evaluate additional power supplies and configurations in our upcoming 120mm fan roundup, at which point we will complete the transition to a revised and lower noise cooler test bed.
The noise level of the power supply was 38.3 dB from 24" (61cm) and 47 dB from 6" (152mm). The measured noise level of the test room is 36.4 dB, which would be considered a relatively quiet room with a noise floor slightly below the OCZ PowerStream 520 PSU.
We measured noise levels with the Thermaltake MaxOrb and the Scythe Andy Samurai Master with the stock Scythe fan at its single speed and the embedded MaxOrb fan at Low and High speeds. Results were then compared to the other coolers/fans tested in this category. Measured noise levels in this chart should be considered worst case. Measurements were taken with an open side of a mid tower case 6" and 24" from the HSF. Real world would be a completely closed case resulting in a further reduction in noise.
The measured noise levels at 6" and 24" are below the system noise floor with the quiet Scythe fan on the Andy Samurai Master. The Thermaltake actually specifies even lower noise levels than the Scythe, but at both low and high noise it was above the 24" noise floor at 40.7dbA at low speed and 45.8dbA at high speed. The MaxOrb fan is definitely audible, but the noise is not particularly irritating in frequency. If you are very sensitive to noise you should be aware you will likely hear the MaxOrb fan with an open case.
At the 6" measurement the MaxOrb was below the noise floor at low speed, and significantly above the noise floor of 47dbA at high speed with a measured 52.5dbA. The Tuniq Tower 120 on high, the Zalman 9700 on high, and the Monsoon II Lite stressed were noisier than this, but this is still one of our highest measurements. Again the noise frequencies are well placed and not particularly irritating as there is none of the high-pitched whine that some fans generate, but the MaxOrb is definitely not silent.
For many enthusiasts upgrading cooling the goal is maximum stable overclock, and they will live with the inconvenience of a louder system. For other users silence is the most important factor, and these users will forgo maximum overclocking if that increases system noise levels.
There are virtually no power supplies that do not include a fan. While Zalman and a few others do make an expensive fanless power supplies, we have not seen a fanless unit larger than 500W, or one that would be used for seriously overclocking a system. With that in mind the noise level of the system with all fans turned off except the power supply was measured. The power supply used for the cooling test bed was the OCZ PowerStream 520, which is one of the quieter of the high performance power supplies.
We have also measured the Corsair 620-watt and Mushkin 650-watt power supplies which are reported to be quieter than the OCZ. Both the Corsair and Mushkin are indeed quieter at idle or start up speed. However, as soon as load testing begins and the PSU fan speed kicks up the measured noise level is almost exactly the same as the OCZ PowerStream 520 watt power supply.
We are currently in the process of evaluating "quieter" power supplies for an update to our cooler test bed. We will make changes to that test bed as soon as we are confident in the noise measurements and test procedures with a variable speed quiet PSU. We plan to evaluate additional power supplies and configurations in our upcoming 120mm fan roundup, at which point we will complete the transition to a revised and lower noise cooler test bed.
The noise level of the power supply was 38.3 dB from 24" (61cm) and 47 dB from 6" (152mm). The measured noise level of the test room is 36.4 dB, which would be considered a relatively quiet room with a noise floor slightly below the OCZ PowerStream 520 PSU.
We measured noise levels with the Thermaltake MaxOrb and the Scythe Andy Samurai Master with the stock Scythe fan at its single speed and the embedded MaxOrb fan at Low and High speeds. Results were then compared to the other coolers/fans tested in this category. Measured noise levels in this chart should be considered worst case. Measurements were taken with an open side of a mid tower case 6" and 24" from the HSF. Real world would be a completely closed case resulting in a further reduction in noise.
The measured noise levels at 6" and 24" are below the system noise floor with the quiet Scythe fan on the Andy Samurai Master. The Thermaltake actually specifies even lower noise levels than the Scythe, but at both low and high noise it was above the 24" noise floor at 40.7dbA at low speed and 45.8dbA at high speed. The MaxOrb fan is definitely audible, but the noise is not particularly irritating in frequency. If you are very sensitive to noise you should be aware you will likely hear the MaxOrb fan with an open case.
At the 6" measurement the MaxOrb was below the noise floor at low speed, and significantly above the noise floor of 47dbA at high speed with a measured 52.5dbA. The Tuniq Tower 120 on high, the Zalman 9700 on high, and the Monsoon II Lite stressed were noisier than this, but this is still one of our highest measurements. Again the noise frequencies are well placed and not particularly irritating as there is none of the high-pitched whine that some fans generate, but the MaxOrb is definitely not silent.
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Wesley Fink - Monday, June 4, 2007 - link
We could change it to embedded, which we used several other times to refer to the MaxOrb fan. We just thought always calling it embedded might get boring ;-)DrMrLordX - Monday, June 4, 2007 - link
The VX recently won a large HSF shootout here:http://www.hexus.net/content/item.php?item=8757&am...">http://www.hexus.net/content/item.php?item=8757&am...
I know you're doing things differently than Hexus, but still . . . why no VX? The Big Typhoon has already been shown to be an outstanding HSF with a high cfm fan (100-110 cfm being the sweet spot). The fact that it's a top-down cooler like the two you've tested here is merely an added bonus for those who own cases with otherwise-poor airflow that can become cooling dynamos with a powerful top-down cooler (thanks to the prevalence of side air ducts/air guides since the P4 days).
Some folks have said the Scythe Andy is better than the Big Typhoon, but without a head-to-head comparison, will we ever know?
wollyka - Tuesday, June 5, 2007 - link
it will be interesting to test also the Big Typhon VX like the OP said..xsilver - Monday, June 4, 2007 - link
the VX design looks a bit dodge because of the very high centre of gravity. with practically a 1kg cooler I dont want that lump of metal falling off and smashing onto a 8800gtx or something!at least with a tuniq style cooler the centre of gravity is much more evenly distributed.
Personally Im thinking about a setup where you can have dual fans but only have the second one kick in when a certain temp. is reached or maximum load is triggered. Besides the thermalrights - which are too expensive imo, is the scythe ninja the best bet?
cujo - Monday, June 4, 2007 - link
if you've used the bt you'll find it doesn't have a high center of gravity at all. it's far ligher than say my old xp90c.i was planning on getting a ultra 120 extreme based on this review but after the spanking he regular ultra 120 got in the hexus review i think i'll stick with my bt.
i've asked at least twice in this comments section for the bt to be included but to no avail. i actually signed up an account just to ask.
the one difference between anandtech and hexus that i think anand does better is use a consistent thermal paste. that's why i'd love to see how the bt performs in anands test environment.
oh and for those who said "ha, they're using an old cpu." those old cpus ran so much hotter than the c2d's we're used to today. i figure it's a better test to use hotter cpus as opposed to modern cpus as those results will transfer over. i don't care how they cool my cpu, i care how they cool a hotter cpu than i will ever have.
how many of us like seeing psu reviews where they test it up to the 500w that each of us would probably max use. no, we want to know how it handles it's full rated spec.
Wesley Fink - Tuesday, June 5, 2007 - link
Since many have requested it, our next cooler review will be the Thermaltake Big Typhoon VX which we just received in the lab. Thanks to Frozen CPU for getting us a review sample so quickly.It is no wonder the review referenced did not get great performance from the Thermalright Ultra-120. We don't understand why, but the tested the Thermalright with a Noctua low-ouput Silent fan. Our top results were with a high output, but quiet Scythe S-Flex SFF21F. Not surprisingly the Noctua tower, using the same Noctua fan appeared about the same place in cooler performance as the Thermalright.
Perhaps this was just an oversight on the reviewers part, but it appears the Thermalright was set up to do less than top performance in that review. Output of the VX is around 90CFM on high speed, our S-Flex is about 64CFM, and the Noctua is either 30CFM or 47CFM depending on which plug was used for the review.
DrMrLordX - Wednesday, June 6, 2007 - link
Sweet. And yes, I did notice that Hexus tested the Ultra-120 with a pretty slow fan. The main advantage of the original Ultra-120, in my opinion, was that it could continue to benefit from more airflow up to (and exceeding) 140-150cfm. Most HSFs stop benefiting from increased airflow at much lower rates. It doesn't make much sense to use the Ultra-120 (or Ultra-120 eXtreme) with such a slow fan.However, Hexus also tested the Big Typhoon VX at half fan speed, which is around 43 cfm. Big Typhoons (and the VX) see notable improvement in performance all the way up to around 100-110 cfm (and 150 cfm will net you another 1C drop in temps . . . joy). So . . . take that however you will.
Also, since you're responding to reader feedback (which is great), have you taken a look at this review here?
http://forumz.tomshardware.com/hardware/DaClan-Rev...">http://forumz.tomshardware.com/hardware...-Interfa...
This is really very interesting reading, especially in light of the fact that your testers have not found any noticeable difference in TIMs that you've used. Have you considered a high-end TIM shootout of your own?
jkostans - Monday, June 4, 2007 - link
That hexus review doesn't make any sense. They used the thermal paste included with each cooler, rather than a single paste. While this will show out of the box performance, you can't directly compare the coolers to each other. I don't understand the reason for this, I buy my high performance coolers based on how the heat sink performs, not the included paste. I'd like to know who here buys a $60 cooler and doesn't use AS5 or similar paste. I usually like Hexus review too.....DrMrLordX - Tuesday, June 5, 2007 - link
Anandtech does about the same thing that Hexus does. They either use the included paste or bulk silver TIM, depending on whether or not any paste is included with the HSF.Wesley Fink - Tuesday, June 5, 2007 - link
DrMrLordX has correctly stated what we have said in many reviews. Our policy was to use the same quality silver-colored thermal paste if the cooler came with basic white paste of no paste, and the premium stuff if the cooler was supplied with a premium paste. We did this because our testing and experience shows Thermal Paste makes no difference as long as you use a good paste that doesn't dry out, but ig the mfg cared enough to supply the expensive stuff we would use it.We still believe Thermal Paste really doesn't matter, and we only changed to the same paste on each cooler review because we got tired of expalining the truth in every cooler review. Using the same paste just eliminated the questions. No, we will not tell you which paste we used because it is irrelevant. You just need to know we use the same quality paste on every cooler test these days.