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Cooler Master HAF 912 Case RC-912-KKN1 E-mail
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Written by Dan Ferguson   
Monday, 06 September 2010
Table of Contents: Page Index
Cooler Master HAF 912 Case RC-912-KKN1
Closer Look: Exterior
Detailed Exterior Features
Closer Look: Interior
Detailed Interior Features
Final Thoughts and Conclusion

Detailed Interior Features

Since each build is different, Cooler Master took some of the best features from other designs and blended them to yield a highly configurable case for different needs. One feature borrowed from the CM 690 II is the modular drive bay.

Cooler Master HAF 912 RC-912-KKN1 Mid Tower Case

The HAF 912 has a modular drive bay similar to the one seen on the CM 690 II but with a different purpose. The CM 690 allowed the modular bay to be removed to make space for a bottom-mounted radiator. The HAF 912 allows the modular bay to also be installed sideways in the bay or be removed completely. With the modular bay installed the clearance will accept video cards up to 10.6 inches in length. That is enough to house the HD 5870. If the bay is left out then there is room for video cards up to 13 inches in length.

Cooler Master HAF 912 RC-912-KKN1 Mid Tower Case

When the modular bay is removed there are additional configuration options. The 2.5" SSD cage can be installed atop the remaining 3.5" bays to make room at the bottom of the case. The SSD cage can hold two drives, and if more drives are desired a 3.5" slot can be converted to hold two additional drives.

Cooler Master HAF 912 RC-912-KKN1 Mid Tower Case

The conversion is accomplished using the drive adapter included in the kit of case hardware. The adapter allows two small drives to be mounted one above the other and inserted into the 3.5" bay using the standard mounting hardware.

Cooler Master HAF 912 RC-912-KKN1 Mid Tower Case

All previous cases in the HAF series included 3.5" drive trays common in many of Cooler Master's cases. The HAF 912 did not ship with any of these trays and does not appear to be compatible with their method of locking into place. Instead of drive trays, model RC-912-KKN1 ships with a bundle of plastic rails. The rails use metal posts in rubber grommets which are similar to the drive trays on the other HAF models. To install a drive with the rails, the rails must be held against the hard drive while it is slid into place. A small plastic tab on each rail locks the drive into place.

Cooler Master HAF 912 RC-912-KKN1 Mid Tower Case

Building the HAF 912 was a snap. My typical setup uses a single optical drive, two 3.5" drives, and normal sized components. For "convenience" I installed an E-SATA port in the extra PCI expansion slot. It turns out this is not very convenient. The ports consume hardly any space, but it is more than enough to block access to the normal PCI slots. No wonder Cooler Master installed a thumb-screw for this port; it has to be removed to access any other PCI device. Not that the thumb-screw is that helpful, because you'll already have the screwdriver out for the other PCI slot.

It's fairly typical to spend much of the install time running cables, but there was so much room this took no time at all. The build image above shows a rather sloppy cabling job since I could have taken more time to hide cables, but I kept the build time under 40 minutes by being lazy. The 40 minutes includes time spent removing parts from the old case.

My default setup is very simple. If I had more optical drives and cards requiring tools to install then the build time would have been longer. The build image also shows the clearance between my GTX 260 and the modular drive cage. There's plenty of room to get the card in and out.

While running the case at idle I noticed the interior temperatures were a couple degrees cooler than my last case. Under load the difference was more noticeable. The HAF 912 ran several degrees cooler with the CPU and GPU under stress. Despite having only two fans the open design of the panels was sufficient to allow the air to flow freely and have sufficient cooling.

In the next section I'll give my final thoughts on using the HAF 912 as well as rate the case and my experience.



# A little measurement?ehume 2010-09-05 19:35
Generally nice review. One thing I would like to see all reviewers start doing is to measure the distance from the back of the motherboard tray to the panel behind it (the right panel in this case). CM states there is 16mm back there, but an actual measurement would help.
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# RE: Cooler Master HAF 912 Case RC-912-KKN1Doug 2010-09-06 02:02
I really like the look of this case. Like I say in all yuor case reviews, none beat the look of the 830 Stacker. One big issue for me is that the Stacker series cases have a mesh cover on both sides of the case, completely hiding the side fans. I hate the unfinished look of a side port right in the middle of the sides of any case. They look like a #ty mode to me. Nice review though.
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# RE: Cooler Master HAF 912 Case RC-912-KKN1Robert17 2010-09-06 04:44
Seems like a good mid-range case. Cases are one of the few items in a build that can be tweaked or modified. I've never tried to mod a hard drive for example. But for $3.00 I picked up a package of ten thumbscrews (had a choice of colors at that) and made my mid-tower somewhat more tool-less. Another $15 for a 120mm fan moved my air around substantially better. Kinda makes you wonder, what with purchasing scale and all, whether a couple of bucks of features in the HAF 912 up front would have pushed this case over some price point they didn't want to cross?
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# RE: Cooler Master HAF 912 Case RC-912-KKN1Daniel Ferguson 2010-09-07 09:50

I suspect the choice to install the modular drive bay put them right near the edge of their projected profit margin, and that they just couldn't afford to add the few extras and miss out on the $60 price point. And when looking at the competition, the modular bay is one major thing that sets the case apart, so it may have been the better choice.

Took mine to its first LAN party; one arm carry. It's nice to carry something smallish and still have the fastest rig.
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# Case height?ladyfox 2010-09-07 14:11
I know the dimensions list the height as 18.9 inches but is that from the lowest portion of the case at the top or the highest?
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# RE: Case height?Daniel Ferguson 2010-09-18 09:38
Highest. That is the maximum vertical length of the case.
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