Antec Three Hundred Two: Stay Cool, Budget Enthusiasts
by Dustin Sklavos on January 24, 2012 7:00 AM EST- Posted in
- Cases/Cooling/PSUs
- Antec
- mid-tower
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.
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TerdFerguson - Tuesday, January 24, 2012 - link
It runs a cable from a USB3 port on the back of the machine.Ammaross - Tuesday, January 24, 2012 - link
"It runs a cable from a USB3 port on the back of the machine."Which, NOTE TO ARTICLE AUTHOR, is an excellent use of those water-cooling holes in the back of cases. :)
DanNeely - Tuesday, January 24, 2012 - link
I'd be more inclined to agree if it wasn't for 20-30% of reviews being 1 or 2 egg wasn't the norm for almost all devices like that. That many unhappy customers means that something is definitely not being done right.bill4 - Wednesday, January 25, 2012 - link
Well why dont you just look at the reviews? There's only 12 of them.It appears most of the poor reviews are whining that it doesnt add a USB 3.0 port it just reroutes from the back. Well DUH. The other thing is people whining that the card readers are only USB 2.0.
Damn, Americans are whiny. If people focused 1/10 their energy on what our govt is doing as they do whining about corporations and products, we might be ok in this country.
justaviking - Tuesday, January 24, 2012 - link
"but anything sound of 40C"I expect you meant to say "anything SOUTH of 40C"
Peroxyde - Tuesday, January 24, 2012 - link
And how about ""anything below 40C"It's shorter and it says exactly what it means. Why use convoluted words which, in addition, could be misleading. South is interpreted differently between habitants in Northern and Southern hemispheres.
justaviking - Tuesday, January 24, 2012 - link
What am I missing? Airflow is airflow.Whether the flow is induced by pushing air in (which must exhaust somewhere), or by sucking air out (which much come in from somewhere), what's the difference? The two critical things are the amount of air that flows over your components, and if that air has already been warmed by flowing over other components first.
It's not like we're significantly pressurizing the case and increasing the air density.
Can someone please educate me?
Arbie - Tuesday, January 24, 2012 - link
With negative pressure - as you note - the air has to come from somewhere. It comes in through every opening in your case, no matter how small. So you get dust all over the internals. This impairs heat transfer from those elements, thus degrading the overall cooling. So you don't want it; simple as that. Why it keeps popping up as a good idea is beyond me.I don't know this case myself but imagine that it can just as well be arranged for a moderate amount of positive pressure, by changing fan directions and possibly adding filters. Or find a better-designed case. Unfortunately, not many manufacturers really think about what we need.
And the situation isn't helped by niggling about $10 more or less in price, as this article does. That's down in the noise level for people designing and building their own PCs. I probably spent $200 experimenting with fans on my last build, until I got everything just right. An extra $50 spent on getting a properly designed case (lots of input fans with removable filters) would be well worth it.
justaviking - Tuesday, January 24, 2012 - link
That makes sense.Dust coming in "randomly" from all over, rather than being forced through filters (which can be cleaned) allows more dust to accumulate on the components.
So it's less about the airflow and more about dust management. I never looked at it that way before.
Thanks.
ImSpartacus - Tuesday, January 24, 2012 - link
Don't forget that a lack of dust management can quickly come to impact long term airflow as well.While a case utilizing negative pressure might still perform adequately in reviews like this one (great review by the way!), long term performance might degrade appreciably if dust isn't regularly cleaned.