I've had this system for about one and a half year but it's only now I've managed to control the 'aluminum hum' of my Lian-Li case which puts the system between 'silent' and 'very quiet'.
This is about my first foray into the DIY world, and (loigically) the first time I post about such a thing so bear over with me.
Here's how the S80 looks like:
My plan was to suspend/dampen my Hitachi 7k1000-Hdd with these blocks to reduce vibration:
Theoretically I see two advantages to these hifi-grade feet compared to normal foam:
1. They are harder so a smaller area of support should be adequate allowing for more airflow around the hdd
2. They are adhesive on one of the sides which is pretty nifty for the setup I had in mind
The obvious disadvantage would be advantage 1, that they are harder and therefore should carry more vibrations. Initial testing (with the hdd resting on two of these blocks in the case) proved that this isn't really a problem; hardly any vibrations were carried from the hdd to the surroundings which reduced the noise of my system to almost nothing. With all fans turned off I could hear only a very faint vibration in a low ambiance environment and older people with less hearing couldn't hear a thing.
So, now I needed a more permanent setup that would allow me to move the rig without worrying about the hdd falling around inside the case. My idea to keep it steady was to not only suspend it underneath but to have it fixed in the foam in all vertical and horizontal directions. Here's how the area I wanted to mount it in looked like (yea, I know my cable management sucks, apologies):
I reduced the area a bit by moving the heat-sink thing (that's meant for mounting your drive in) up a few levels. Next I found out that the foam blocks fitted quite nicely in the rail meant for mounting the heat-sink in:
Next step: Making 'feet' for my hdd to rest on. Here's how they ended up looking:
And how it fitted in it's designated space:
I chose to add an extra bit of foam on the far side of the drive so it wouldn't end up emtiting vibrations to the back of the case either:
Now for the rails in the side to keep it fixed, I put in a couple of strips of foam to the sides:
The drive fits quite snugly between these.
Last step: Fixing it on the horizontal axis. Sadly I ended up with quite a bit of empty space so I had to make two large 'towers' of foam to fix it against 'the roof':
It fits snugly though and perfectly securely:
It's not really possible to pry it any other direction than out, and the cables against the case walls will secure it in that direction.
Here's how the system looks with the new suspended HDD:
There's plenty of room beneath the HDD where I might add an SDD later on. If I ever have to add another HDD there should be room for sandwiching it with my current one if I remove the heat sink so I'm thinking of cutting off the top part of the hdd cage to improve airflow.
Now that I was at it I went on to put in a couple of Scythe S-FLEX and remove the very restrictive cover on the exhaust fan which did wonders for airflow and noise as well.
Results? I still have a slight hum in idle which I figure is from the hdd fitting as snugly as it does (I think I maybe should have cut of some of the foam on the side and top). It won't be a problem when I go back to the ambiance my down-town apartment.
My fans are silent when the system is idling and under anything but full stress where I have Speed-fan run them at 100 %. At a 100 % all of my 'big' fans are pleasant and not really intrusive but the one on my Zalman VF900, but I'll be getting a new GFX-card with either an accelero or a VF1000 so I guess that will solve the problem - considering how silent the S-FLEX fans sound I'm leaning towards the accelero with one of those.
Any comments remarks? - please be gentle, I'm a newbie on this front.