Lian Li's PC-A05FN: Alternative Thinking at a $99 Price Point
by Dustin Sklavos on December 7, 2011 10:15 PM EST- Posted in
- Cases/Cooling/PSUs
- mid-tower
- Lian Li
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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ShieTar - Thursday, December 8, 2011 - link
This is a strange thermal design indeed. It seems the engineers at Lian Li were trying to get the best CPU cooling possible, without too much care about what that will do to the GPU.Sounds as if it could give you a nice, silent workstation with a high-power CPU and On-Chip graphics. Sadly, in my personal experience, most business buyers don't seem to care too much about the noise that their employees will have to suffer from their machienes, and just go straight for the cheapest offer.
Still, it would be interesting too see a comparison of this box and a more classical competitor when filled with this kind of business setup instead of your standard, more gaming centered, testbed.
Touche - Thursday, December 8, 2011 - link
Aluminum cases have a big drawback. They tend to hum due to HDD vibrations. It'not (as) noticable if you have loud fans, but it's terrible with quiet computers.bji - Thursday, December 8, 2011 - link
I have this case and this doesn't happen to mine. No humming. Also my fans are almost never running; it's a quiet computer.Why is aluminum more susceptible than steel anyway? What's the science behind your statement?
Death666Angel - Thursday, December 8, 2011 - link
Mass (weight) is a great noise insulator. And steel has a greater mass than alu. So usually, steel has better acoustic qualities. Using that to translate "all alu cases are worse than others" is not right.ckryan - Thursday, December 8, 2011 - link
I put a lot of mass on the panels with the acoustic dampening material, and it's totally worth it. But I didn't have any humming or vibrations beforehand.piroroadkill - Thursday, December 8, 2011 - link
Sideways 3.5" drive bays. Having them facing the board is just way too cluttered. With the immense width of this case, you'd think they'd have much better cable routing options behind the motherboard tray, too.darkhawk1980 - Thursday, December 8, 2011 - link
I don't have the case, and it's difficult to really know if it would fit or work, but would it be possible to modify the side panel and add in a 80mm or 120mm fan that could blow air in near the air inlet on the GPU? Specifically, perhaps, placing one right near the back (or front, depending on your viewpoint) of the GPU, and placing it between the end of the GPU and the HDD caddy's? This might improve both the GPU temperatures and the SSD temperatures, although I'm not sure if it would help or hinder the other temperatures inside the case. This would also help to provide a positive internal pressure (looks like 1 inlet fan at the back, and 2 outlet fans [power supply exhaust + front 120mm fan exhaust]) which is definitely a good thing.MadAd - Thursday, December 8, 2011 - link
Ive given up giving up on these cases with creative item rearrangements. It never works, weve had ATX for 10+ years and if there was a good configuration to be found, wed have it already.Why dont the manufacturers start calling for a smaller redesign? Optical Disks and Power Supplies are limiting shrinking the box atm, but ask for a smaller power supply atm and people grimace with the mutterings of 1U on their lips. Mobos can always be smaller, all electronics can, but no one seems to have any will to do it.
If consoles pads and laptops are 'taking over' standard pcs, then its time to do it...most home users dont need more than a slim client, with space usually going to ppl with many HDD (nas box anyone?) or large gfx arrays.
IM sure atx wont just disappear tho, enthusiasts that need the space can use it, but we really need to deal with this size thing to move the PC into the living room.
Death666Angel - Thursday, December 8, 2011 - link
I don't see the shortage of small enclosures, be they ITX or mATX, in the last few years. There are quite a lot of cases that offer what you describe, with SFX PSUs for moderately powerful gaming rigs or external pico PSUs for mid to high-end CPU+iGPU configurations.And there there is also the AIO becoming increasingly powerful and cheap.
ATX will always be around because a lot of people don't want to pay the premium for the smaller size and they just hide the case. Or they actually need the space. I don't see how anything huge has to change though, as there are products for everyones purposes. :-)
MadAd - Sunday, December 11, 2011 - link
"a lot of people don't want to pay the premium for the smaller size"exactly!
so until the market moves to a new standard, anything that isnt atx is going to have a premium on it..its dragging the platform as a whole down