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Lian Li introduces back-to-front PC-A05N mid-tower chassis

by Parm Mann on 22 January 2009, 13:32

Tags: PC-A05N, Lian Li

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Lian Li has today launched its latest mini-tower chassis in the form of the slightly unusual PC-A05N, a chassis that differs from most by directing airflow from the back to the front.

At the rear of the chassis, pictured below, a 120mm fan is used to pull cool air in and over the residing components. The airflow is then directed to the front and exhausted through side vents by a second 120mm fan and a front-mounted PSU.

The theory, says Lian Li, is that the front-mounted PSU allows for a smaller overall chassis. The PC-A05N - complete with brushed aluminium finish - measures a tidy 210mm x 381mm x 490mm, but retains support for full ATX motherboards and has room for seven PCI slots.

As you'd expect from Lian Li, the chassis has plenty of noteworthy finishing touches - the PSU-attached power plug is routed to the rear of the chassis to keep cables out of sight, there's an internal hard-disk drive cage that'll mount up to three drives with anti-vibration grommets, and there's a row of multimedia I/O ports on top including two USB, FireWire and HD Audio. Along with two 5.25in optical-drive bays and a single 3.5in bay, we'd expect the usual high standard of Lian Li workmanship.

Our gripe, unfortunately, is a scepticism toward the PC-A05N's thermal credentials. We're fond of small-and-tidy enclosures, but the back-to-front airflow in this one still has us raising our eyebrows. We've yet to see real-word temperatures, but air running over hot components and then directly onto the hard drives and power supply doesn't seem to be an ideal formula.

Has Lian Li got it backward? Share your thoughts in the HEXUS.community forums.

Official press release: Lian Li launches the all new PC-A05N Mid-Tower Chassis
Official product page:
Lian-Li.com



HEXUS Forums :: 10 Comments

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The A05B and A06B have had this layout for a while already. I've got an A06B; looks nice, but it's a bit rattly even with all the panels fitted properly, and the airflow is rubbish. My 8800GTS doesn't help either, it refuses to speed the fan up until it's near melting point meaning the case is always toasty.

You also find that HDD temps get quite high because rather than having cool air brought in from the front over the HDDs, it's warm exhaust air that flows over them. It's possible (albeit not too easy) to reverse the fans to get a ‘normal’ air flow direction, but it's flawed too because the PSU will exhuast air to the front, which would then get sucked in by the front fan. You're screwed either way, really.

There are vents in the case directly below where the PSU sits so that it can suck air in from underneath, but that's only useful if it's on a hard surface. Sit it on a carpet like mine is and there's not going to be much air under there in the first place.
On the plus side, stick it under your desk and it'll keep your toes toasty ;)
I have a A05 (bought off the forum) and TBH the airflow idea is absolute pap, It needs a Blowhole mod to vent the air from the gfxcard or you'd get a heat deadspot at the top of the case…

But.. With a large GFX card it practically makes the case into 2 separate compartments, and the airflow problem is mainly rectified, (apart from the GFX card/“Top Compartments” which needs to blow hole)

I'll try and get piccys of what i mean later :)
I have a PC-A05 (silver) as well, which I modded with 2x120mm fans on top. Originally, I used a slot blower, but found it noisy and not as effective. Did think about water-cooling at one point, but decided against it in the end.

Looking at the pictures, I can't see any differences between the ‘N’ version and the current 05's?
Damn you guys are slow at giving us the news this was on thier site weeks ago :sleep: