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Cooler Master CM 690

Date: September 12, 2007
Author(s): Matt Serrano

Gamers on a budget don’t want to be forced to sacrifice quality, and Cooler Master realizes this. Their latest case, the CM 690, can be found online for $70 and under and has enough features to please most everyone.


Earlier this month, Cooler Master released the 690. Little was known about the steel behemoth, so many interested would-be buyers were left out in the cold. It had a feature set that many high end cases would be jealous of, but beyond a description and a few images, there was nothing for us to suck on until the case hit retail.

There’s no doubt that Cooler Master has released a perfect case for cooling. In total, eight fans can be installed (one in front, one in back, one at the bottom, two at the top, two on the left side, and one on the right). If fans aren’t your thing, you can swap them out for a water cooling setup, since holes are already provided. A wire routing system should help cables stay out of the way, and air to flow easily in the case.

If anything, the 690 is a direct competitor to the Antec 900. Both cases are centered around cooling and both have flashy LED fans, but here’s the kicker: the 690 is selling for under $100.00. If the two can perform on equal ground, there’s no question about which to pick. Cooler Master has been known for solid budget cases in recent history. The Centurion 5 is a perfect example of a case heavy on features with a small price tag.

Closer Look

With our Techgage reviews, we usually focus on the packaging. In this case, the review sample didn’t include the retail box or instruction manual, so we cannot mention them in our review.

The case was simply shipped in a regular brown box, protected with two Styrofoam blocks.

The case is relatively simple, if not elegant. The Cooler Master logo is a subtlety rather than stamped there obtrusively. The silver accents accompany the black mesh at the front. The mesh is not only attractive; it also offers ventilation for the fans to carry air to the rest of the system. We’ll get into that shortly.

Much to my dismay, the power and reset buttons have been put on the right side of the case, which will make them harder to for people who sit their case on the right-hand side of their workstation. Overall, the buttons have a clunky, mushy feeling since they only “click” when enough pressure is applied.

The ports are located at the top of the case. They include: two USB ports, a Firewire port, a headphone and microphone port, and an eSATA port. Personally, the top placement is very inconvenient for me since I have my computer underneath my desk. It’s really only useful if people place their machine beside the desk, so I don’t understand why companies insist on using that method. With the buttons and status LEDs factored in, the only prime area to place the case would be at the left side of a desk. If you put it anywhere else, expect to have to get used to the change.

The back seats seven expansion slots, a 120mm fan, and two pre-drilled holes for water cooling. As you can see, the power supply is mounted at the bottom of the case instead of the top. Higher end cases have adopted this feature to improve airflow and adjust the weight distribution of the case when components are installed, but we seldom see this with budget cases.

There’s pair of fairly rouged rubber feet on the bottom that sport a pretty interesting design. The weird part is I had a much easier time pushing the case back than I did pulling it toward me, but doing either shouldn’t be that easy without picking the case up.

Inside The Case, Final Thoughts

This has been mentioned in earlier reviews, but I can’t quite stress it enough. The side panel is really hard to take off. I can’t even fathom why they bothered to include thumb screws. You’ll spend at least five minutes wondering if you’re doing something wrong, and another five minutes actually trying to pry the thing off (and the holes dotted right next to the “handle” doesn’t help either – I suggest gloves).

Once you’ve struggled to get the side off, you’ll finally get a glimpse of the roomy interior. For a mid-tower, there’s a generous amount of space to play with.

The cable management feature is probably the most unique. It allows anyone to neatly manage their cables as they build, improving airflow. Fortunately, they can be taken out just by unscrewing them if there are obscurities or if you prefer your own method.

The tool-less expansion slot system is pretty easy to use. Covers and cards can be removed by merely pulling the locks away from the case. They require a bit of force compared to Thermaltake’s method for example, so you shouldn’t find yourself accidentally unlocking one.

I have a sort of love-hate relationship with the front panel. I love the fact that it can be removed by pulling it (no keys or screws to deal with here), but it feels incredibly cheap. Obviously with a sub-$100 product, Cooler Master had to cut corners somewhere, but it shows way too much.

As I was unboxing the review sample, I didn’t realize I was holding it by the front because of the opaque bag covering it. Sliding it out, I managed to push one of the drive covers in, preventing me from sliding it back into place. When I took the front panel off soon afterward, I noticed plastic clips holding the covers into place. “Great”, I thought, “I’ll just slide it back in, problem solved.” But there was one problem – the clips had broken.

I would normally fault this as human error and ignore the flaw in my review. The thing that perked my interest was the glue that was already put on holding that specific slot into place. This could have been a ”feature” of my sample, but the coincidence makes me seriously doubt the workmanship put into the product. I was able to repair it a bottle of super glue later, but I still can’t touch that slot.

The tool-less optical drive installation is a pretty nice feature. With the front panel off, drives can be slid into place and locked with a latch – that’s it.

The hard drive installation is another feature that caught my eye. Keeping with the tool-less design, no screws are needed, but some are included if you rather use them over the standard parts. The hard drive is put in and kept into place with four plastic pegs that should do a decent job at minimizing noise. It may be hard to get the drive in at first, but it’ll fit.

Installation and Testing

Here’s a list of the hardware that was used for testing the case:

To get started, I placed the motherboard standoffs in the case. There were no standoffs preinstalled with the 690, so you’ll have to pull out every one the old fashioned way.

A nice feature is the screws that are kept inside the case. At the back of the drive cage in the top right corner of the case, screws for the motherboard and hard drives are kept for safe keeping (on both sides if you run out). So instead of digging through a bag, the mounting was made into a hunt-and-peck operation that was pretty nice to deal with.

The power supply was installed at the bottom, with no surprises. Fortunately, the PSU that was used fit without any problems, but those with bigger units will have to remove the dust filter and deal with their crushed dreams of filling the case up with fans.

Both the hard drives and optical drive were installed without much issue (once I got used to the unorthodox methods). Without the front covering the case, the optical drive will look like it’s sticking out quite a bit, but it should be a pretty flush fit. The hard drives were installed by bending the plastic shell and pushing it in. The cases feel a bit flimsy by themselves, so it may be awkward putting them in, but they shouldn’t break.

There was plenty of room to work with and I had no problems installing anything. A very big negative is that the case is very much incompatible with the IP35 Pro. Two of the cable management hooks were in the way of the side SATA and IDE ports, so they had to be taken out. The power LED is also a two-pin cable instead of a three-pin cable, which means the power LED couldn’t work without a converter.

The one thing I didn’t like about the cable management feature was that there is simply no way to move it. They can be kept into place when installing the motherboard, but it will be a close fit regardless. So while they can still be removed, Cooler Master should have thought to move the hooks a few centimeters to about a half an inch away.

The front mounted fan has a blue LED which gives off a subtle (that is, not too bright) glow. The power LED is a faint blue and the hard drive activity LED is a faint red color. There’s a significant amount of bleed, so they don’t look too attractive. That said, everything seems to be using blue now. What gives?

Here’s the finished product.

CPU Temperature 44°C 58°C
GPU Temperature 65°C 75°C

The GPU we’ve using this time around happens to be a lower end model, but it is fanless, so temperatures will be higher. The CPU was cooled with another manufacturer’s heatsink, but the temperatures are close enough to stock that it doesn’t make a huge difference.

Final Thoughts

The 690 certainly meets my expectations for its price point and what I expected from Cooler Master, but it wasn’t overly impressive. The bottom line is there are some neat features that will guarantee a few buyers, but that doesn’t mean it immediately rules out products with higher price tags like the Antec 900 and P182 or SilverStone TJ07 or TJ09, to name a few.

I loved the tool-less installation. It’s come closest to letting me keep my screw driver put away more than any other case I’ve come across.

I already voiced my concerns about the build quality earlier in the review. The one place I wouldn’t have wanted Cooler Master to cut corners was the front and top panel. Simply put, any part of this body that has plastic feels like a cheap mess. The steel adds some heft to it, but weight isn’t necessarily a good thing. If the entire outer frame had been replaced with metal, the case would be near-perfect.

My other beefs include the top port placement and the cheap feeling buttons. There’s just no excuse for them. It goes without mentioning that the case is pretty loud, but that’s not all. With the stock fans installed, I had dust covering the mesh and side in about a week. There are filters, but even then, it won’t exactly be a joy cleaning them out.

Honestly, the 690 is a hard case to rate. On one hand, given the option of having so many fans is hard to complain about, let along being able to install a water cooling kit in an $80 case out of the box. Having the wire management feature is a nice addition even it’s a bit useless in some circumstances. It shows that there was an incredible amount of effort put into this product, but I can’t help feeling it would have done better if it was priced a few dollars more. Cooler Master has an OK case on their hands, but it could have been so much more with a solid build quality and some of the other nagging issues ironed out.

At the end of the day, I’m going to say it’s an option, but it’s in no way the best option. You get your money’s worth in the end, so if it has features you’re looking for and you’re not afraid of going through some inconveniences, it’s worth picking up. But after seeing it in person and using it, it’s not riot it’s been made out to be.

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