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:

  • Thank you to Crucial for providing us with the Ballistix Smart Tracer memory we used to add memory thermals to our testing.
  • Thank you to Zalman for providing us with the CNPS9900 MAX heatsink and fan unit we used.
  • Thank you to Kingston for providing us with the SSDNow V+ 100 SSD.
  • Thank you to CyberPower for providing us with the Western Digital Caviar Black hard drive, Intel Core i7-875K processor, ASUS P7P55D-E Pro motherboard, and Samsung BD-ROM/DVD+/-RW drive.
  • And thank you to SilverStone for providing us with the power supply.
Assembling the Antec Three Hundred Two Noise and Thermal Testing, Stock
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  • stren - Wednesday, January 25, 2012 - link

    I have actually drilled my own water cooling ports on my older Antec 300, PM me on the forums if you want to see it. So yes they're good to have. Unusually placed on the top, the rear is much more normal. Glad to see they fixed the major flaws with the old Antec 300, but really they could have gone a few steps further and painted the inside black as well as offering a windowed version. An improvement, but not worth paying $80 imo, there are other better cases out there.
  • mbf - Wednesday, January 25, 2012 - link

    ...to take the original 300 and make it look like crap. I'm saying this purely from an aesthetic point of view and I'm specifically referring to the the curved front. It seems to be what Antec is best at these days considering the hideous DarkFleet series, the LanBoy Air and also the new P280. It's a shame....
  • GuyIncognito_ - Wednesday, January 25, 2012 - link

    That's exactly what I was thinking!

    The only thing I didn't really like on my 300 was the pair of protrusions on the front. So they made them even bigger! XD

    I hope that either the USB 3.0 panel fits the old 300 or the 300 plastic front fits 300-2.
  • marc0871 - Sunday, February 12, 2012 - link

    yep.
    the curved front is my greatest issue with this case too.
    the rest of the case on the other hand, is to much of an improvement over the 300 to not put it on my shortlist.
    and pretty high on that too.

    still, i would like to see the 300 bezel on the 302.
  • 8steve8 - Wednesday, January 25, 2012 - link

    why bother reviewing full-size atx cases?

    who buys these clunkers?

    what percentage of people need atx over microatx? why? and for the masses, mini-itx...
  • Stuka87 - Thursday, January 26, 2012 - link

    Are you being serious?
  • bnolsen - Thursday, January 26, 2012 - link

    mostly agreed, but the old 300 is excellent for holding a small raid array excellent drive cooling, etc. I was hoping antec would release a microatx version of the 300 (same number of hard drive bays, dump the extra 5.25's).
  • ZekkPacus - Sunday, January 29, 2012 - link

    The issue is that most hobbyist builders won't have great cable management skills, bigger cases are easier to tidy.

    Added to that, I'll always have full ATX cases. Granted I only run a GPU and a soundcard nowadays, but spacing them out makes me happy. Show me a MicroATX case that has thermals equivalent to an antec eleven hundred/p280/corsair carbide 500r, and as much cable management.

    The P180 mini isn't far off but have you seen the size of it? It's more or less a mid-tower case. Added to which it is now badly out of date.
  • Cybertori - Saturday, February 11, 2012 - link

    I have a Three Hundred that I am very happy with. Only downside is the fan noise, which is kind of inherent in a well-ventilated steel case for gamers. Its nice they went to USB 3.0, and made the side panels easier to attach. Very solid case, easy to work with, and keeps a gaming rig cool and stable.
  • nikhil2004 - Wednesday, October 1, 2014 - link

    i brought this cabinet and i m satisfied with the performance.
    unfortunately this one is no longer available, never the less almost all antec products are eequally good...
    i bought it from martnext.com gave me best price along with COD facility
    try out yourself for best deal on Antec products
    http://www.martnext.com/computer-components/brands...

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