AVS › AVS Forum › Video Components › Home Theater Computers › Mounting 3.5" Drives in the Norco 4220
New Posts  All Forums:Forum Nav:

Mounting 3.5" Drives in the Norco 4220

post #1 of 9
Thread Starter 
Hello fellow Norco 4220 fans!

After reading the specs for the 4220, my only complaint was that it had space for only a single 2.5" system drive. As you know, these are generally smaller and more expensive than their 3.5" counterparts. Ideally I wanted a decent sized system drive (was thinking of hosting a SVN server on the box, and possible some virtual machine images, etc), as well as a fairly large drive that I would use for nightly backups of only the critical files on the RAID array (photos, docs, etc).

So I ordered the case and the 2.5" drive, along with a bunch of 3.5" drives for the array. After receiving everything I found that the case now includes *2* mounts for 2.5" drives, contrary to Norco's product page. I also found that a 3.5" drive could sit on these mounts and still have clearance for the case cover to slide back on. However, the mounts and their screw positions were intended only for 2.5" drives.

So my quest began of finding a way to mount 1 or 2 3.5" drives there and ditch my smaller, more expensive 2.5" drive.

The following photos illustrate the solution I came up with. My question to you guys is: Does this seem like a bad idea? Would there be any implications to this placement,such as airflow, heat dissipation, etc? It seems like the fan plane should cool them just as it does the ones in the backplane.

As it turns out, there are two screw holes on the mounting bracket that line up with two inner holes on the drives:


This occurs only on one side of the drive, but should be enough for our purposes.


The mounting plate is just wide enough so that it rests on the screw mounts on both sides of the drive, and does not rest on the circuit board:


Of course if you're worried that it is too close, you can always throw a washer under there to space it out a bit more.

Once the drive is attached to the mounting plate, I had to find a way to mount the plate to the case! Luckily, after flipping it over I noticed that the plate extended past the drive a little bit, just enough to expose a mounting screw hole! This allows us to affix it to the top of the backplane.


Of course this is only one mounting hole exposed here, but if you tighten it and dont swing the case around too much it should be sufficient. Also, if you're able to throw this case around (full of drives or not), then you should stop building computers and enter a bodybuilding competition.

Here is the finished product of one drive mounted in this fashion:


Looks like I've run out of attachments (5 max), so I'll continue this in the next post!
LL
LL
LL
LL
LL
post #2 of 9
Thread Starter 
So that works for one 3.5" drive, but what if you want two?

To fit 2 3.5" drives, you have a be a bit more creative. It would have been pretty straightforward except for the metal flap that is used to keep the slim cdrom in place. Since I will not be using one, I will be using this space for a second 3.5" drive. I'll need a CDROM only for configuring the box initially, in which case I can hook it up directly to the MOBO and rest it on the case. Or use USB..

The drive mount is already raised, so you just have to bend this metal flap down a little bit. To do this I used some needle nosed pliers.


I botched it up a bit, but you get the idea.


After doing this the second mounting pad fits nicely on the other side of the case.


End result of mounting the 2 3.5" drives:


You could also mix and match, having one 2.5" drive and one 3.5" up there.

This configuration might not be for everyone, but I thought I'd share my findings for those who were bummed about the 2.5" drive requirement!

Unwire.
LL
LL
LL
LL
post #3 of 9
I took a slightly different approach. I also used Dynamat all over the main fan housing to help quiet the fan noise and lower vibration. It helped a little, but those suckers scream at 55DB.


post #4 of 9
Thread Starter 
Ahh clever - You're mounting the system drive to the side of the fan plane! And it looks like you created two additional holes for it? What is that bracket I see it sitting in?

Are those the fans that the case came with? Those stock fans are the loudest I've ever heard.. It seriously sounded like a jet engine taking off when I fired that thing up! If you haven't yet, I'd suggest replacing those with even the cheapest aftermarket fans. I threw in 4 $2 CoolerMaster fans and it made a world of difference.

Does that wrap reduce the whining? I found the fan itself isnt too bad, but there is some sort of whining resonance that occurs against that fan plane..
post #5 of 9
Quote:
Originally Posted by unwire View Post

Ahh clever - You're mounting the system drive to the side of the fan plane! And it looks like you created two additional holes for it? What is that bracket I see it sitting in?

Are those the fans that the case came with? Those stock fans are the loudest I've ever heard.. It seriously sounded like a jet engine taking off when I fired that thing up! If you haven't yet, I'd suggest replacing those with even the cheapest aftermarket fans. I threw in 4 $2 CoolerMaster fans and it made a world of difference.

Does that wrap reduce the whining? I found the fan itself isnt too bad, but there is some sort of whining resonance that occurs against that fan plane..

The bracket is a flat thick Mounting plate from Home Depot. I bought it in the bracket hardware isle. I also used two smaller corner brackets. This was done so I could mount the bracket as thin as possible to not restrict the air flow. I could move the drive to the left and add another 3.5 " drive if needed.

I am looking at other fans to replace the stock ones. I removed the stock fan grills. They were not needed as the fans blades are on the other side. This reduced the air noise a little. The Dynamat on the metal fan housing did decrease the fan noise and vibration. It also makes a vibration damper between the hard drive and fan plate.

I am looking into replacement fans now. Since the stock fans are 80 CFM, I really don't want to reduce the air flow.
I will probably go with 120MM fans and modify. It seems the only way to keep the high CFM and lower the DBA. All replacement 80MM fans I find are just as loud give or take a few DB. I am also looking at some high CFM Squirell Cage fans that have very low DB. I will go with those if I can figure a good mounting set up. One giant one the length of the fan plate would be great.
post #6 of 9
Thanks for posting I just did this for my one 3.5" drive. Before I just had it rested on top freely, but didn't think I could just mount it sideways! Also interesting with the dynomat, might have to try it out as I have some lying around.

I replaced all my fans with the fans below and it's much quieter. I keep my box in a separate room so I guess noise isn't as big of a factor, but yeah the stock fans sound like a jet engine...

http://www.newegg.com/Product/Produc...82E16835150007
post #7 of 9
Ok, I could not take the noise any longer. I modded the fan housing for Three 120 MM Fans, 134 CFM @ 46dBA. I also added Fan speed controls for all fans.

I bought everything from Newegg.
120MM Fans
80MM Fans
Fan Controller


post #8 of 9
After having the new fans installed for a couple days now I have to say they are great. Even at full power with no Fan Speed controller they are much quieter than the stock fans and they move more air. Using the fan speed controller and slowing them just a bit they get really quiet. This was a great mod to do. I am really happy with this server now. And this time no Dynamat was needed.
post #9 of 9
As an alternative I might suggest the Arctic Cooling 120 mm PWM fans. I modded my fan plate to accept 3 X 120 mm, as well as 2 X 80 mm for the rear exhaust.

The nice thing about these fans is that you can parallel up to 5 of them and have the SYSFAN PWM controller on the motherboard automatically control fan speed. Connect the 80 mm fan speed sensor, not the 120 mm, so that the motherboard receives speed feedback that covers a wider range. This will keep the 120 mm fan speed slower when they temps are low.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Home Theater Computers
AVS › AVS Forum › Video Components › Home Theater Computers › Mounting 3.5" Drives in the Norco 4220