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Cooler Master ATCS 840 Computer Case RC-840 E-mail
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Written by Olin Coles   
Tuesday, 18 November 2008
Table of Contents: Page Index
Cooler Master ATCS 840 Computer Case RC-840
Features and Specifications
Closer Look: ATCS 840 Exterior
Detailed Exterior Features
Closer Look: Interior and Pressure
Detailed Interior Features
Computer Chassis Final Thoughts
RC-840-KKN1-GP Conclusion

Closer Look: ATCS 840 Exterior

The most popular computer case designs get licensed out to other manufacturers all the time, so it's not surprising that Cooler Master has re-launched the ATCS 840 after their own previously modeled design. The full-tower RC-840 chassis is built on the principal of cooling performance, which is where it receives its name. ATCS stands for Advanced Thermal Cooling Solution, and the RC-840 has more than enough room inside to accomplish this task in short order. In this articles, Benchmark Reviews tests the black aluminum-alloy RC-840-KKN1-GP model and explores the various configurations gamers and enthusiasts can expect from this enclosure.

Beginning with the front view, Cooler Master has defined an attitude ATCS 840 last witnessed on their Centurion lineup. A stoic slate-black color scheme is accented by the silver ATCS 840 and Cooler Master logo's and some Allen-head bolts visible only from the front. A removable dust 'shield' rests attached to the lower portion of the front bezel, with six 5.25" drive bay plates above it.


Looked at from a different perspective, the ATCS 840 still shows evidence that 3.5" drive bays are extinct. If you're one of the many enthusiasts who utilize a flash media multi-card reader, or one of the few remaining users who need a floppy disk drive, Cooler Master has given one drive bay plate the ability to knock-out a 3.5" plate.


A side view of the RC-840 reveals that Cooler Master has enough cooling inside the ATCS without an additional side-mounted panel fan, ala Cosmos RC-1000. I'm rather thankful, since the Cosmos S had a 240mm side panel fan that I had to remove, which was a real chore on that side panel. There's really no need to be concerned with the lack of a side fan; at least not after you see how many fans are inside of the ATCS 840.


From the top-angle view illustrated below, it's apparent that Cooler Master wanted to keep the face of the ATCS 840 looking as Spartan as possible. All of the buttons and connections usually found on the front or side of the computer case are positioned at the top-front portion of the RC-840. This is fine for systems positioned below desk level, but anything taller will require extra effort to reach.


Because of the large overall size (9.57" wide by 22.83" tall), the RC-840 can fit more components than most other computer cases. There are two different power supply locations available on the ACTS 840: one at the bottom (default) and an alternate location at the top. This also means that the liquid-cooling hose openings can be configured for the top (default) or bottom as well.


Cooler Master includes seven vented expansion bay blanks for each slot opening, so even the expansion slots can help cool the RC-840. A rear-mounted 120 x 25mm cooling fan (1200 RPM / 17 dBA) comes attached to the ATCS, and is joined by additional ventilation along the side of the expansion card slots.

In our next section, Benchmark Reviews gives a more detailed overview of the various exterior features on the Cooler Master ATCS 840 computer case.



# mrjd 2010-03-31 18:15
I was wondering if you supply replacement parts ATCS 840 Computer Case RC-840 such as;
1. Front panel
2. HDD racks
3. HDD fan bracket
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# MrJim H 2012-06-30 04:57
Hello, i`m looking to purchase the RC-840-KKN1-GP Coolermaster ATCS 840, wondering if you can help me find one, thanks, Jim
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# RE: Cooler Master ATCS 840 Computer Case RC-840David Ramsey 2012-06-30 07:26
A search on eBay turned up one in Germany for $325...
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