Testing Methodology

For testing Micro-ATX and full ATX cases, we use the following standardized testbed in stock and overclocked configurations to get a feel for how well the case handles heat and noise.

ATX Test Configuration
CPU Intel Core i7-2700K
(95W TDP, tested at stock speed and overclocked to 4.3GHz @ 1.38V)
Motherboard Gigabyte GA-Z68MX-UD2H-B3
Graphics Card ASUS GeForce GTX 560 Ti DCII TOP
(tested at stock speed and overclocked to 1GHz/overvolted to 1.13V)
Memory 2x2GB Crucial Ballistix Smart Tracer DDR3-1600
Drives Kingston SSDNow V+ 100 64GB SSD
Samsung 5.25" BD-ROM/DVDRW Drive
Accessories Corsair Link
CPU Cooler Cooler Master Hyper 212 Evo with Cooler Master ThermalFusion 400
Power Supply SilverStone Strider Plus 750W 80 Plus Silver

Each case is tested in a stock configuration and an overclocked configuration that generates substantially more heat (and thus may produce more noise). The system is powered on and left idle for fifteen minutes, the thermal and acoustic results recorded, and then stressed by running seven threads in Prime95 (in-place large FFTs) on the CPU and OC Scanner (maximum load) on the GPU. At the end of fiteen minutes, thermal and acoustic results are recorded. This is done for the stock settings and for the overclock, and if the enclosure has a fan controller, these tests are repeated for each setting. Ambient temperature is also measured after the fifteen idle minutes but before the stress test and used to calculate the final reported results.

Thank You!

Before moving on, we'd like to thank the following vendors for providing us with the hardware used in our testbed.

Assembling the Lian Li PC-A55 Noise and Thermal Testing, Stock
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  • Dustin Sklavos - Sunday, June 17, 2012 - link

    Considering the mountain of cheap laughs I got working on this review, I'm happy to disappoint you.
  • eBob - Saturday, June 16, 2012 - link

    My current case is full ATX and is smaller than that! I was actually considering going micro-ATX for my next build, but couldn't find a motherboard that I liked.
  • crackedwiseman - Saturday, June 16, 2012 - link

    A couple of years ago I did a build for a customer in an A05, which, similarly to the A55, tries to fit an ATX board in an mATX sized enclosure. It was a bit cramped, but not that bad, and thermal performance was solid given that I had an overclocked i7-920 and a GTX 260 in there. The A05 had a totally different internal layout; I can't image why they decided to change it - this is anything but an improvement
  • rickcain2320 - Thursday, June 21, 2012 - link

    The A05 doesn't work well unless you cut a hole in the top or add a slot fan. I never kept the front panel on because of heating concerns, which turned out to be true as my motherboard chipset fried from the heat, taking out the video card in the process.
  • PortsOrBust - Sunday, June 17, 2012 - link

    "Unfortunately, a case I can't find any argument for."

    This thought may be anathema on a "latest and greatest" enthusiast site, but if one simply wanted a small ATX case, and used only on-board ports with no additional cards, it seems to me that most of the other issues are not deal-killers.

    Granted the PSU mount isn't ideal, but without add-in cards the airflow would likely overcome that problem, and finding a way to raise the box off the floor a half an inch or so isn't a big deal either.

    Some people will pay $110 for the size and looks of a case, but aren't looking to spend $400 on the latest and greatest video card.

    So, its by no means a perfect case, or even the best example of a compact case, but that doesn't mean there's no argument for it . . .
  • Dustin Sklavos - Sunday, June 17, 2012 - link

    Except if you're not going to use any expansion cards, what's the point of going with a full ATX board instead of Micro-ATX or even Mini-ITX?
  • erwendigo - Monday, June 18, 2012 - link

    The better quality of a good ATX motherboard, a very "little" point.

    This review is a shame. You lost the point of a minimal case ATX, you had overestimate the importance of temperatures in a system that it isn´t in the enthusiast niche.

    This case have a very specific niche, but you missundertood this and its rol.

    And the worse, you made a lot of badass jokes. :-/
  • plamengv - Sunday, June 17, 2012 - link

    Lian Li PC-A55 compared to Antec NSK-4000 is a monster. Lian Li never had such a good case as Antec is!
  • Alchemy69 - Sunday, June 17, 2012 - link

    This will do until NZXT release their M0-U7H case and then I'll go from A55 to M0-U7H.
  • dave1_nyc - Sunday, June 17, 2012 - link

    I'll probably wind up feeling like a dumbass for saying this, but I can' t believe that the dimensions are correct, esp the height, which is shown as 17.6". One of my machines systems uses a Fractal R3, which feels far more spacious, (and which has room for the PSU under the ATX slots), and it's about the same height.

    It measures a little bit higher from the floor, but then it has taller feet, and hence more space under the case for air intake.

    So what am I missing? How can this case be almost 18" high and yet have so little vertical space?

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