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Corsair Carbide 678C Mid-Tower Chassis Review (Page 5)

By Shannon Robb from 1 week ago
TweakTown Rating: 90%Manufacturer: CorsairModel: CC-9011170-WW

Inside the Carbide 678C Continued

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Here we get an internal shot of the 678C's rear I/O area. Same as we saw when looking form the exterior applies here. One thing I like is the fact that Corsair stuck with the broader frame rail on the rear and drilled access holes for the expansion slot fasteners, so you still have more metal in place to keep everything rigid. The single exhaust fan we see here is also PWM, like the rest, and is connected to the PWM repeater (hub) in the rear cable management area.

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Here we have the cable management area of the 678C. This area, while seeming significant, is unfortunately mostly lacking in cable management directly behind the motherboard tray. The motherboard tray area is a mere 17mm from the side panel, whereas the non-recessed potion where the HDD trays reside is a far more large 40mm of cable management room. Add to this the fact that the SSD tray portion protrudes basically to the panel surface, and you have a veritable wall separating the rear cable management area across the motherboard tray.

Had Corsair left the motherboard tray at 40mm from the panel, there would be far more room for cabling, but that would have the add-on effect of also limiting interior space, which at the minimum would hurt vertical GPU placement for air-cooled cards.

The area back here, especially on the front-most area behind the HDD trays, is where you will have most of your cabling based on this design. It is not necessarily a horrible thing but can be somewhat limiting if going for super clean runs. The triple 2.5" tray is a cool idea as it has embedded springs to help eject the SSD when removing it. The large SSD tray assembly is also removable should you opt to have the 17mm of space usable for cabling runs, so I will give Corsair credit for at least having removable components so you can choose your limits.

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Here we have the main cage for the 3.5" HDD trays. Each 3.5" tray or caddy is its metal unit, which mounts through the chassis with three offset thumbscrews. The main cage below the PSU shroud can be removed with just a few thumbscrews to clear the area for cooling components thoroughly should you choose such a layout.

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We pulled one of the cages so you can better see how they are attached. Also, note that the rubber grommets on the side are for vibration mitigation and requires screws to hard mount the HDD's in the trays.

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Here we see the massively ventilated PSU area. As I said before, this area borders on having more open space than actual metal, which, based on the design, is an excellent choice to allow pretty much any PSU in this chamber to be more than sufficiently cooled. There are rubberized foam pads for the PSU to rest on and potentially avoid the transfer of harmonics during operation. This is a silent chassis, after all.

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One of the last parts we will cover for the cable management area will be the PWM repeater or PWM fan hub. As you can see here, it has two soldered connections top and bottom, which serve power to the unit through the top via a SATA power connection. The PWM reference comes from your motherboard or other PWM capable controller via a 4-pin fan cable connection, which connects to the bottom of the PCB. Then we have four total fans connected to the PCB with space for three more or possibly more if you are ok with using splitters.

I do like solutions like this as it can help manage a bunch of fans from a single reference, which is helpful for things you want to be synchronized, such as case fans or even radiator fans. This could also help if your motherboard happens to be a bit scant in the PWM fan header department.

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The front panel cable array is as follows:

  • Power, Reset, HDD LED and Power LED headers
  • 4-pin fan header for PWM repeater/hub
  • SATA power connector for PWM repeater/hub
  • HD Audio header for front panel combination 3.5mm jack
  • USB 3.2 Gen 2 internal connector for front panel type-C port
  • 20-pin USB 3.2 Gen 1 connector for front panel type-A ports

This is a substantial connector array and offers current high speed along with top-end USB 3.2 Gen 2 connectivity, which is an excellent addition as many platforms now offer it.

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