Assembly
Installing the mainboard is done traditionally with the use of the included black screws. There is very little space above the CPU cooler, which may prevent connecting anything like P4 cables hard around this area. This - combined with the inability to easily install large, backplate equipped coolers after placing the mainboard inside the Helios 910 may be a source of some frustration during the assembly process. Securing the graphic card is easily done with the thumb screws. Using such a traditional method also means that no matter what the size of your video card, it will be held in place securely.
The hard drive cage fills three of the nine drive bays and can hold up to four HDDs. Installing them is easily accomplished outside of the chassis with the use of thumb screws. Then simply slide the entire cage into any bays of your choosing and secure it with up to eight further thumb screws.
The addition of an optical drive is done in a similar fashion. Just remove the drive bay cover, slide the drive into place and secure it - yes you guessed it - with thumb screws. The power supply is held in place with four screws as well and there is plenty of space for those using longer units with larger capacities.
Once all the parts are installed, it does feel a bit crowded inside the Helios 910. There are some possibilities to route and hide cabling, but these are rather simple and will not help you reduce the actual bulk seen inside the case itself.
As mentioned before, I feared that the 230 mm fan would cause problems with the large Tuniq CPU cooler and it does. This means that you won't be able to use most 120 mm tower coolers in this chassis without removing the beneficial side panel fan.
Finished Looks
Once the case was turned on, the four fans did create noticeable sound levels. This may become unbearable to some, forcing them to either move on to another chassis or invest in new fans or a fan controller capable of adjusting the amount of power sent to each cooling unit.