Testing Methodology

For testing 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.

Full ATX Test Configuration
CPU Intel Core i7-875K
(95W TDP, tested at stock speed and overclocked to 3.8GHz @ 1.38V)
Motherboard ASUS P7P55D-E Pro
Graphics Card Zotac NVIDIA GeForce GTX 580 (244W TDP)
Memory 2x2GB Crucial Ballistix Smart Tracer DDR3-1600
Drives Kingston SSDNow V+ 100 64GB SSD
Western Digital Caviar Black 1TB SATA 6Gbps
Samsung 5.25" BD-ROM/DVDRW Drive
CPU Cooler Zalman CNPS9900 MAX with Cooler Master ThermalFusion 400
Power Supply SilverStone Strider Gold 750W 80 Plus Gold

A refresher on how we test:

Acoustic testing is standardized on a foot from the front of the case, using the Extech SL10 with an ambient noise floor of ~32dB. For reference, that's what my silent apartment measures with nothing running, testing acoustics in the dead of night (usually between 1am and 3am). A lot of us sit about a foot away from our computers, so this should be a fairly accurate representation of the kind of noise the case generates, and it's close enough to get noise levels that should register above ambient.

Thermal testing is run with the computer having idled at the desktop for fifteen minutes, and again with the computer running both Furmark (where applicable) and Prime95 (less one thread when a GPU is being used) for fifteen minutes. I've found that leaving one thread open in Prime95 allows the processor to heat up enough while making sure Furmark isn't CPU-limited. We're using the thermal diodes included with the hardware to keep everything standardized, and ambient testing temperature is always between 71F and 74F. Processor temperatures reported are the average of the CPU cores.

For more details on how we arrived at this testbed, you can check out our introductory passage in the review for the IN-WIN BUC.

Last but not least, we'd also like to thank the vendors who made our testbed possible:

Thank You!

We have some thanks in order before we press on:

Assembling the Antec P280 Noise and Thermal Testing, Stock
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  • IceDread - Wednesday, November 16, 2011 - link

    With that ugly front it's a no no.
  • tarv - Wednesday, November 16, 2011 - link

    Me want ones!
  • LeeF - Wednesday, November 16, 2011 - link

    ... now if only you guys would actually compare it to them. :)

    I'm still rockin' the P180 I bought in 2005. It is a PITA to swap out hardware, but I've never minded because of the looks and the quiet. I actually prefer its looks to the P280, but I think I'd still happily switch to the P280 for the ease of upgrading and the drive rails that accommodate 2.5" drives. I just installed an SSD in mine, and I had to use a horrible kludge of adapters to mount it in a 5.25" drive bay because I couldn't find any 3.5" adapters that would line up with the screw holes in the P180s HDD rails or lower drive cage.

    The noise and cooling performance will be the crux of the decision for me, though. I have a Zalman CNPS 10k Quiet cooler which fires toward the back of the case, so the top fan positions are entirely superfluous (and possibly detrimental) in my case.
  • ZappedC64 - Wednesday, November 16, 2011 - link

    Decent case.
  • TGMGroup - Wednesday, November 16, 2011 - link

    I remember when Antec was the best of the best, before companies such as SilverStone and Fractal Design came out. It's nice that they're doing their best to get better.
  • NoWayMan - Wednesday, November 16, 2011 - link

    Would like to build a new system in this case - a lot easier than the P180 I have.
  • cstuss - Wednesday, November 16, 2011 - link

    It's been a real struggle to find a decent case with top port access that was quiet and not covered in 'cool' led lights. This case looks like a winner to me. I'd love to build a system in this bad boy.
  • Upinsmokes - Wednesday, November 16, 2011 - link

    another nice case from antec. great review too.
  • racerx_is_alive - Wednesday, November 16, 2011 - link

    I like to install those USB card readers in my computers, and they usually fit in the 3.5" bay- but this case doesn't have one of those. Do they have a faceplate to adapt one of the 5.25" forward facing slots to handle a 3.5" drive like the card reader?
  • MKBL - Wednesday, November 16, 2011 - link

    Is PSU to be mounted downward? I have Antec HCG-620, which is sitting upward at the bottom of Three Hundred. and by the look of its branding, I thought it was naturally built to be mounted upward. Can it be reversed, upside down?

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