NZXT ZERO Case Review: How quiet can seven fans be?

Cases & PSU/Cases by KeithSuppe @ 2007-03-08

The NZXT company is young, yet their cases have already gained a solid foot-hold on the market. Today we test the ZERO, a case with a total of seven 12cm fans and a 8cm top mounted fan. Does it move around the floor on its own? Can it double as a hovercraft? Read on...

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Test Setup and Test Methodology

Testing the NZXT ZERO


Madshrimps (c)


Writing the introduction to this article I spent a considerable amount of time researching ATX tower thermodynamics as well as aerodynamics. I came to the realization my test methodologies (measurements) while accurate insofar as temps were concerned; however, they weren't necessarily focused on the hardware within. For example measuring and determining internal chassis air-temp as an a priori effect on hardware or hardware temps as a posteriori effect on air-temps, mattered little in the final analysis. What should be most important are specific hardware temps such as the CPU, videocard, HDD's PSU, etc. I found many reviews focused on the cause an effect relationship between internal case temp and room ambient temps. Who cares if your chassis air-temp is 33°C if your graphic card runs at 65°C IDLE whereas in another case it ran at 56°C IDLE. Measuring case internal air temp doesn't serve us in the long run if we still need to run out and buy a proprietary cooler for my video card. Therefore I decided on the usual stress tests except I focused on the operating temperatures of each individual device. From this point on comparing the temperature of each component on a case per case basis, while testing the same system and keeping room temps consistent should provide more valuable information.

Both test systems were installed into the ZERO case sharing the same video card, memory, and PSU. A comparison was also made between stock air cooling and H20 cooling using Swiftech's Apex-Ultra. In addition to temps using H20 cooling was essential to measure the chassis goal towards "noiseless" operation since each stock cooler was on each system and water-cooling. Swiftech's Apex-Ultra was included as a comparison between H20 and stock air cooling, as well a comparison between air cooling and H20 for noise.

Test Systems - A) Intel Socket-775 / B) AMD Socket-AM2
CPUs A) Core2Duo (Allendale) E6400 Retail
B) Opteron (Santa Ana) 1212 Retail
Mainboards A) Asus P5W DH Deluxe (BIOS 1506)
B) Asus M2N32-SLI Deluxe/Wireless (BIOS 903)
Memory DDR2 A/B)Super Talent T1000UX2G4 PC2-8000 (2x2048MB)
Graphics BFG 8800GTX
Power Supply A/B) PCPower&Cooling Silencer 750EPS 12V
Cooling A/B) Stock Cooling
A/B) Swiftech Apex Ultra
Storage A) Maxtor 300GB SATA, Seagate Barracuda 80GB SATA Perpendicular
B) Seagate Barracuda 80GB Perpendicular
Optical A/B) Plextor PX755-SA DVD/RW
Operating System Windows XP Home Edition


Testing this case as thoroughly as possible involved installing and stressing two different systems from each of the major chipmakers to represent a diverse number of system owners. I began with the Core2Duo / Asus P5W DH system and then moved onto the Opteron 1212 / Asus M2N32SLI Deluxe system. Each shared video, memory, Optical and Power Supply to minimize variables. I also tested each with water-cooling using the Swiftech H20-220 Apex ULTRA reviewed here. The charts below indicate CPU speeds running default ~ overclocked and then temps measured at IDLE ~ LOAD. The latter was accomplished using an instance of (TestMem) S&M run for 20-minute loops. Temps were measured with a combination of software and hardware foremost being the Extech Minitech MN26 multimeter. Software used to record CPU core temp went by the same name Core Temp v.0.94. To measure GPU and HDD temperatures I used PC Wizard 2007 .1.72 in combination with NVIDIA's nTune v.5.05.25.00. All temps were verified with the MN26 digital multimeter and ambient room temps remained consistent within 18~20°C.
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Comment from KTMitch @ 2007/03/09
Wow, that has to be one of the best reviews I have ever read for a computer case, and I have read quite a lot recently. Liquid3D, you really know your stuff.

The aero- and thermal-dynamic information was interesting and enlightening. And the case review itself was thorough and descriptive. The only subject I saw missing was a mention to how easy the install process was.

I have four questions about the case.
One: What is you're take on the quality of the front door? The review on hexus.net thought it was particularly cheap feeling. But their entire review seemed to be negative.
Two: How easy was it to manage wires in the Zero? I've read a couple of complaints that there is very little ability to manage wires efficiently in the case.
Three: How is the exterior finish? I am not entirely convinced on the 'orange-peel' finish. How easily does it smudge?
Four: Would you use this case as your own rig (in an air cooling situation)?

Overall, this review has definitely piqued my interest in this case.
Comment from Rutar @ 2007/03/09
I like that company, 6 120mm fans
Comment from Liquid3D @ 2007/03/12
Quote:
Originally Posted by KTMitch View Post
Wow, that has to be one of the best reviews I have ever read for a computer case, and I have read quite a lot recently. Liquid3D, you really know your stuff.

The aero- and thermal-dynamic information was interesting and enlightening. And the case review itself was thorough and descriptive. The only subject I saw missing was a mention to how easy the install process was.

I have four questions about the case.
One: What is you're take on the quality of the front door? The review on hexus.net thought it was particularly cheap feeling. But their entire review seemed to be negative.
Two: How easy was it to manage wires in the Zero? I've read a couple of complaints that there is very little ability to manage wires efficiently in the case.
Three: How is the exterior finish? I am not entirely convinced on the 'orange-peel' finish. How easily does it smudge?
Four: Would you use this case as your own rig (in an air cooling situation)?

Overall, this review has definitely piqued my interest in this case.
Sorry about those areas I missed. Sometimes while trying to focuson one subject I may negklect another. Recently I have noticed the exterior does smudge. it's easily cleaned and as long as you don't handle the case too often it's not bad for the finish.

The front door is made from plastic and aluminum, yet it's only about one thrid of the front panel height, so it's not that problematic. I can understand why they would think it was "cheap" feeling, but it works and while my Kandlaf case doors are solid aluminum I don't like the sound of the aluminum scraping against aluminum when they close or if their not closed in the right order they don't close. I'm not picking on the Kandalf it's just an example of what I have here right now. The door on the ZERO is made the way it is so the power switch could be accessable from the outside. Of course the Reset button is inside and I was pressing that button for the first 30-minutes after I built the rig until I found the power button arounf the front hehe. They should have kept them both exterior.

The wires were another area I missed, it does get a little crowded in there, however; I didn't mention it because I haven't found many cases where this isn't a problem with sleeved cables. Ironically as their supposed to ,make things neater, they tend to be bulky. PCPower&Cooling in their effort to produce the finest quality has made their ATX power cable especially stiff, but the problem seems to be case height and depth. If you want your case a little smaller like the ZERO you do make sacrifices.

Installation wasn't really a problem so long as you are organized. Don't try to install memory after you've got all the other devices in, be sure to hook up IDE connectors before power cords. I took all the cords from the PSU (as I usually do) and tape them up to the top of the case to clear room for mobo installation second (PSU is first).

Finally would I use this case in my own sysytem if I was air-cooling? Well if I could have it for $109 it 's better then some cases at $160 but it's not better (in theory I haven't tested them head to head ) then the Antec 900 for $119 at Newegg I would recommend this case over the ZERO and thanks to you I will amend my article.

Thank you for writing in here's the link to the Antec 900 and here's JMKE's article on that case. In his conclusion he stated filters are a problem, and steel makes it difficult for LAN. This exemplifies how difficult a time end-users have finding a decent LAN case so they're dragging along their tower cases. You have to figure it this way, if you want top show off your best at a LAN Party Host One! Or when you buy your next high end rig don't sell the parts from the old one and search for a LAN case that will hold them.

Anyway you can see why I wrote that intro, case makers are hitting the mark in one area and missing the point in another. We should have to make sacrifices for a $100 plus case, meaning at the least the it should be capable of extricating heat from the enclosure. Aluminum isn't that costly and you can use Lucite if the airflow is correct. All it takes are several well placed fans and filters on each (except exhaust) so I pull my hair out in frustration and feel your pain.
Comment from stevem @ 2007/03/13
Good overview of thermal flow, Liquid3D. It's surprising how many case designers make poor choices regarding thermodynamics, flow dynamics & pressure, when this stuff has been modelled since the inception of the ATX spec. It's not as though cost would be severely affected, either...
Comment from KTMitch @ 2007/03/13
Wow, thanks for the quick and in-depth reply!

It is entirely understandable that you missed some subjects. Its almost expected for such a well written (and large) article. And it should be the job of us readers to point out any issues.

I'll definitely take a more detailed look at the Antec 900. From jmke's article, it sounds comparable to the Zero. Its my personal opinion that the Zero looks better, however.

I wholeheartedly agree. There seems to be a rift between the case manufacturers and the consumer. From the points you guys have made, to the simple location of front USB and audio connections, the manufacturers seems to be totally disconnected from the real world demand.

You've made a fan of me. I'll be happily awaiting more case reviews.
Comment from Rutar @ 2007/03/13
Quote:
Originally Posted by Liquid3D View Post
The front door is made from plastic and aluminum, yet it's only about one thrid of the front panel height, so it's not that problematic. I can understand why they would think it was "cheap" feeling, but it works.
brushed aluminium is the best material to make anything out of it, especially when everything else is plywood and plastic nowadays

Dust isn't as visible on it and fingerprints are not an issue and it feels good.

The shiney black plastic that is so dam popular today for many thngs but it won't look good the second you took it out of the packaging.


I think doors in general are stupid for 90% of the users yet so many cases have them (especially if you are too lazy to look for no-cd cracks).
Comment from jmke @ 2007/04/26
Hey Keith,

I just finished testing the NZXT Adamas which has 4x120mm fans, same model as the ones in the Zero, perception of sound can be quite different between people I find these 120mm fans at 12v to quite noisy, far from dead quiet; especially compared to a 1200rpm Papst or 800rpm Noctua.

at 50cm the noise difference is definitely noticeable (about 4-5dBA) between the 2x120mm NZXT fans and 2x120mm Papst/Noctua setup.

 

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