Coolermaster Cosmos S ATX Case Review

Cases & PSU/Cases by jmke @ 2008-03-03

It did not take Coolermaster long to update their high end chassis, the Cosmos S is based on the Cosmos, but made from aluminum, more cooling options, comes with a massive 200mm fan and has a very unique I/O panel. We compare this S(port) version to the original to see how it stacks up.

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Size Comparison & Outside Look

Size comparison

The outside dimensions of the Cosmos S are identical to its steel brother, thus our chart remains unchanged, you can reference the results of the Cosmos in the picture below.

Compared to a 1m80 human, here’s how the cases stack up in height and width:

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The high end Coolermaster cases are known for their depth, the Cosmos S ranks at the top, and is ideal for use with long VGA cards (8800 GTX…)

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Look Outside

There is little doubt Coolermaster means “Sport” by using “S” in the name of their new product, the Cosmos S comes with red racing stripe, black grills and brushed black aluminum side panels. The top panel is made from plastic which has piano black finish (and attracts thumbprints easily).

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The “S” version does away with the front door, instead we get meshed grills over all 5.25” bays, fresh air can be pulled inside the case from the whole front panel of the case.

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With the camera flash we can see the outline of the 200mm fan inside the left side panel:

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The top panel has the same grill pattern as the front and side panel

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The I/O panel of the Cosmos S is a sight to behold, it’s the flashiest and most sophisticated we have encountered yet, you get 4x USB 2.0 ports, HD audio in/out, firewire and eSATA for easy access at the top.

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But let’s close the small sliding door and focus on the star of the show, the power button:

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This isn’t your ordinary push button; in fact you can’t push it in at all. It’s touch sensitive and works by induction, if you put your thumb on the button, the system powers on. We couldn’t find any reset button, there is a hidden HDD led under the shiny surface which lights up red.

The power button is very sensitive, just casually sliding over the button will trigger it, so if you plug in your USB thumbstick or attach that eSATA device and you happen to touch the button with any part of hand/arm the system will react. Default action in Windows XP for “power button” is, you guessed it, power off! While it hasn’t happened a lot during our testing, we did experience one or two unfortunate shutdowns of the OS when we were trying to use the I/O panel.

Maybe hiding the power button deeper in the front panel will prevent these unwanted “button presses”. Also you can’t power on the system with anything but your finger/hand, a ballpoint or other objects won’t work.

If your pet touches the button with the soft spot of its Paw the system will start too, any other part and it doesn’t trigger (yes we tested this ;-)); interesting to know.

The rear of the case hasn’t changed a lot:

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Cosmos S on the LEFT – Cosmos on the RIGHT

The provision for water cooling tubes is in the same spot, the plastic rims are bigger on the S with custom black grill.

Next, a look inside ->
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Comment from Kougar @ 2008/03/05
Great review, thank you for the detailed photos. Best review I've read of the case... Any idea if they offer extra drive cages separately? They should of at least included a 2nd one for the price...

As much as I am liking this case for how well it fits my needs, the price is a bit to high to swallow. Might at well look at the MountainMod designs, as they start at the same price.
Comment from jmke @ 2008/03/07
Yes the HDD bay module is available separately from Coolermaster (since Stacker series already), but not all retailers carry this product afaik.

Saw some Cosmos cases at cases with custom paint job, for a nice $900
Comment from nexeternus @ 2008/03/23
I've posted this question in other forums, nobody seems to know the answer to it, or does not want to answer. This is my 1st post here, and let me just say madshrimps has the most excellent case reviews I've read, I just like the size comparison charts which gives a very good idea how large the cases being reviewed are!

so here is my question.
Does the biometric power button work like a regular power button when held down. wherein it forces hard shutdown when within windows.

I asked because it just occured to me that it has no reset button, meaning I'd have to flip the switch in my PSU, then I realized my PSU the corsair 520HX does not have a switch. I just wondered what I had to do if my windows locks up. I'd not like to have to unplug it from the wall.
Comment from jmke @ 2008/03/23
welcome to the forums!

yes, if you hold your finger on the button it's the same as with a normal power button; as long as you keep your finger on the button it will be in the "on" state and holding it for 4-5 seconds will hard shutdown your system.
Comment from nexeternus @ 2008/03/23
At last!! Mwahahahaha!! Thanks jkme for your response, and glad to be here.
Comment from Morentho @ 2008/05/05
Thank you for the best Cosmos S review on the web!

Can you please tell us what fan controller you used on page 5 of the review?

"...The brighter red light comes from our 5.25” fan controller we installed..."

I am a neat freak and as this is a red-light themed case I would like a nice red led fan controller.

Comment from jmke @ 2008/05/05
this one:
Sunbeamtech 5.25" Fan Controller, it's RED because it's feeding the fans less than 7v, at 7v+ the LEDs turn bright BLUE. so do take that into account.
Also the leds are very bright when lit up blue and might be blinding

You can dim them a bit using a method like mentioned here: