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 Post subject: Fractal Design Define Mini C question
PostPosted: Sat Feb 24, 2018 9:24 pm 
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Hi. I'm thinking of building a new computer around the Define Mini C, and was wondering if there'd be any acoustic/vibration problems (and if so any mitigation possible) putting a 2.5" HD into one of the three SSD slots. The HD in question would be a WD Red 1TB. The three slots are on a sheet metal panel that screws on behind the motherboard:
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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Sat Feb 24, 2018 9:58 pm 
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Location: UK
The best place to mount a hard drive on a Fractal Design Mini C is in one of the trays in the cage under the PSU shroud. These trays are fitted with anti-vibration mountings. Alternatively the whole cage can be removed and a hard drive can be fitted directly to the floor of the case using the mounting holes provided. Either is likely to cause less issues with hard drive temperature and/or vibration issues than using one of the dedicated SSD mounting positions.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Sun Feb 25, 2018 2:49 am 
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lodestar wrote:
The best place to mount a hard drive on a Fractal Design Mini C is in one of the trays in the cage under the PSU shroud. These trays are fitted with anti-vibration mountings. Alternatively the whole cage can be removed and a hard drive can be fitted directly to the floor of the case using the mounting holes provided. Either is likely to cause less issues with hard drive temperature and/or vibration issues than using one of the dedicated SSD mounting positions.

I was intending to use the two trays for my 2 3.5" SMR drives. The 2.5" drive is for things that are too big to fit on an SSD, but sufficiently temporary that I don't want to put them on the SMRs (which I use for longer-term storage). If need be, I can always ditch the internal 2.5", and replace it with an external -- but I thought I'd check if I can fit it in without causing too much noise.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Sun Feb 25, 2018 8:10 am 
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The big questions are:
- how much will the 2.5" drive vibrate, and;
- how likely is the motherboard panel mounting bracket and panel to audibly resonate with this vibration?

I've used a lower capacity of the WD Blue 2.5" in the small external enclosure and it was pretty darn quiet from 1m away. Didn't notice any vibration. I'd expect you'd be ok without any vibration dampening for the bare drive. Give it a shot and let us know. It's for science :)

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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Sun Feb 25, 2018 6:34 pm 
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I think I'll play it by ear -- wait and see how much clearance there is with the side-panel, and if space permits, insert some small silicone washers/grommets between the bracket and the drive as a precautionary measure.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Mon Feb 26, 2018 8:00 am 
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I have the regular sized version of this case: the mounting plate is thin. Even being metal and sturdy, I wouldn't be surprised that there'd vibrations. As to how much would depending on position of case, your hearing sensitivity, and so forth.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Mon Feb 26, 2018 9:41 am 
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Alternatively, I could take out the 'PSU shroud plate' exposing the top of the Drive Cage, and attach something like this (silicone cover) to the top of the cage:
ImageImage
Given 2.5" drives are fairly light, some double-sided sticky pads would probably suffice.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Mon Feb 26, 2018 11:24 am 
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What's going in the two drive cages under the shroud? (just wondering why you aren't using these).

The Si cover could work (velcro tape would allow removal/reapply at will). It might even fit behind the motherboard. Or, on top of the PSU shroud. Or, experiment with a piece of rubber. Velcro the rubber to the case and velcro the drive to the rubber.

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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Mon Feb 26, 2018 6:38 pm 
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CA_Steve wrote:
What's going in the two drive cages under the shroud? (just wondering why you aren't using these).


Hrafn wrote:
I was intending to use the two trays for my 2 3.5" SMR drives.


Quote:
The Si cover could work (velcro tape would allow removal/reapply at will). It might even fit behind the motherboard. Or, on top of the PSU shroud. Or, experiment with a piece of rubber. Velcro the rubber to the case and velcro the drive to the rubber.

Velcro would probably be a good idea. The PSU shroud is mostly the PSU vent and the removable plate that exposes the cage. I thought the top of the cage would make a more solid and convenient base than the plate. Back of the MB (below the SSD mounting plate) is always an option, but it's tighter clearance than a front option.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Mon Feb 26, 2018 9:03 pm 
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Hrafn wrote:
I was intending to use the two trays for my 2 3.5" SMR drives.


yep - missed that bit.

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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Tue Mar 20, 2018 7:50 am 
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My build uses the Mini C. I took the drive cage out and I keep the drives on the right side mounted to the wall. This is just personal preference.

The Mini C is a very good case overall. Two small criticisms. 1) It's fairly large for a case that's marketed as mini. 2) The power supply shroud worsens noise by giving the fan a hard surface to blow against.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Wed Mar 21, 2018 8:01 am 
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Derek Semeraro wrote:
The power supply shroud worsens noise by giving the fan a hard surface to blow against.
I've not noticed any detriment noise-wise due to the shroud. The only drawback for me was drive and PSU cable management - a pain in tight space. The advantage is that it can act as a wind tunnel for air flow in expelling hot air from the GPU to the back of case.


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 Post subject: Re: Fractal Design Define Mini C question
PostPosted: Wed Mar 21, 2018 9:45 pm 
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Derek Semeraro wrote:
The power supply shroud worsens noise by giving the fan a hard surface to blow against.

I take it you mean the front fan(s), that would be blowing parallel to the shroud? If the shroud is producing noise problems, but the side panel (also parallel, and in close proximity to the path of air from the front fans) isn't, does that mean the problem can be solved by covering the shroud in similar sound-dampening to the side panels?


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