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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Stuka87 - Tuesday, January 24, 2012 - link
I own an original 300, and the filters up front do a VERY good job of keeping dust down inside the case. I get almost no dust build up after 2 years of running. I just clean the filters every 2-3 months.Ratman6161 - Tuesday, January 24, 2012 - link
I've had my original 300 from (I think) about 2 years ago that I got for $39 at Microcenter. This case just can't be beat for the price.My experience with the filters is also very good. We have 4 cats in our house and once a week or so I just run my hand over the front of the case and wipe the accumulated hair off of it. None gets in the case through the front. Some cat hair and dust does get in via the side fan though.
Montrey - Thursday, January 26, 2012 - link
Odd, my experience with my 300 is just the opposite. I have it on a stand about 18" off of the floor, and it is the only machine in the house that gets dust on the inside, despite the filters and a not particularly dusty house. I have the 120mm mounted on the front behind the filter, and the 140mm on the top exhausting, both set on low. I have to blow out the fins on my Arctic Freezer 7 at least every month or they get completely clogged. I suppose I could try upping the speed on the front intake fan, but I trade the convenience for quiet.MilwaukeeMike - Tuesday, January 24, 2012 - link
I experience this with my Antec P180. It uses negative pressure and I get dust build up on all the little cracks around my unused 5.25 drive covers. The filters do their job and get most of it, but i do have to spend a little extra time cleaning because of the setup.I should just move my fans and be done with it.
rodrigu3 - Tuesday, January 24, 2012 - link
As I understand it, negative pressure systems work if you have a large filter that allows for low resistance airflow. The majority of air will flow through the path of least resistance and so will probably enter through the relatively large opening in the front of the case through the filter, rather than all the tiny little openings. So, the majority of air entering the case will be filtered, although some dusty air will still get through. You can minimize that on this chassis by putting high resistance filters on the side panels without any fans and just using the two fans that come with the case.7Enigma - Tuesday, January 24, 2012 - link
The original is a fantastic budget case that really is impossible to beat for the $30-40 on sale with free shipping you can regularly find on Newegg. Guess that will be coming to an end as its replacement is finally here but it was great while it lasted. Just starting to read the review but wanted to mention this before I forgot.7Enigma - Tuesday, January 24, 2012 - link
Wow I'm shocked you didn't give at least a silver award for this case!?!?! Similar to the original this case's performance is far beyond its pricetag.Stuka87 - Tuesday, January 24, 2012 - link
I have an original 300, and i love it.However, I am looking at this case, and it looks like it only came with 2 fans, rather than the previous generations four fans? The first 300 had two intake fans on the front behind the filters. This case doesn't have those fans, or the filters?
I am thinking it would have been a bit cooler if it had them, although possibly a bit louder. Although mine set to low is barely audible.
I am also glad they made the opening behind the CPU larger, as I had to cut this area on mine to get the rear bracket for my CPU heatsink on there.
ZekkPacus - Tuesday, January 24, 2012 - link
The original stock 300 only came with 2 fans (top and rear), it was the Illusion that came with 4.Anyway, though I do think AnandTech does some of the best reviews on the net when it comes to cases, I'd love to see them start using the fanbays in these cases. For example I just swapped cases (from a 300 actually to an 1100), and instantly added two more fans to the stock two. That turns the case from a negative pressure design to a neutral or slightly positive pressure design, which improves dust and also lowers temperatures somewhat. Negative pressure is easiest to achieve when you're talking only stock fans, which is why these designs are so common, and when a manufacturer's making a sub$100 case, they need to cut corners to make a profit out of it. Getting positive or neutral pressure out of a stock design of only two fans would involve a high-RPM screamer in the front bays and the 140mm top fan. That config would likely please no one.
But it's very very unlikely that anyone buying these cases will be using them with stock fan configuration, a little bit of sense from AT concerning where your fans would be best placed out of the many options (I agree with the earlier poster about the uselessness of behind-the-CPU fan bays) and what you can expect out of them would be great.
SBTech86 - Tuesday, January 24, 2012 - link
looks okay but for $79, i would go for corsair 400R (64 ish when sale)