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theblotted

macrumors regular
Nov 10, 2006
211
0
Los Angeles
What part... the felt stickers?

I put the felt stickers on the end of the drive where the connectors are. The end of the drive that comes in contact with the side of the MacPro case. Every drive is a bit different with various thickness so you want to use the correct size felt pad. I found the felt pads at the local grocery store (Safeway) in the sewing/home supply section. It was a packet of various size thin round felt pads that you can peel off just like stickers. You might be able to find them at Radio shack or any hobby store. Since my drive is a fairly thick 500GB, I used the quarter inch stickers and stuck them directly on the drive just under the electronics. If your drive is thin, then use the smallest one or cut them down. Make sure that you don't buy thick felt pads or they may get in the way and your drive won't seat all the way in. If you're creative, you don't need to use the felt stickers. Just put something in there that will create a slight insulated gap where the drive meets the side of the computer. I'm not sure if it's even necessary to pad it if you do the screw insulators because I didn't bother testing if the pads made a difference of not. It just made sense to me that the drive might be transmitting the vibrations to the metal casing where the drive connects. I wanted to cover all my bases and it worked. Anyway, you could try just putting in a small piece of foam rubber or sponge as long as it's not too thick and is secured so it doesn't fall when shoving the drive back in.

thanks again for the detailed explanation.

the reason why i'm confused, is cuz i'm looking at my MP, and doesn't seem like the part under the electronic connector on the drive really touches the side of MP.

unless you're talking about the "blue squarish" portion next to the electrical connectors (in below pic)... then it'll make more sense. cuz under the connectors is the mobo, which is a bit recessed already.

but hey, if it's floating your boat, it's all good. i'll do the same with washers. thanks for the tip!

PS: pic from Powermax.
 

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rsvrmille

macrumors newbie
Sep 2, 2006
25
0
how weird is this

in windows (under bootcamp) my mac is back to its quiet self, probably because windows is only seeing 1 drive so the others don't spin up. got to solve this issue though its killing me.

Anyone got some good HD recommendations as I'm putting my samsung 401LJs into the NAS I building.
 

rsvrmille

macrumors newbie
Sep 2, 2006
25
0
problem solved

i have solved my resonating hard drive problem, strangely by swapping them out for a raptor and a hitachi tk320gb drive. Neither of them resonate and although the raptor write noise is loud when at full speed (it is v. quick tho!) the hitachi (with the aid of aam on its quietest setting) is whisper quiet and quick too. Seems some of the larger drives are the problem. Hope you guys are managing to sort out your resonance. good luck.
 

Macintosh Sauce

macrumors 6502
Nov 25, 2006
344
0
USA
My new Mac Pro has been working flawlessly, except for this buzzing sound from the inside of the computer. I was just about to call Apple about it, because it has been irritating me quite a bit. Anyway, I decided to open up the Mac Pro and I discovered what was actually causing the noise problem. It was the HD1 rack somehow vibrating against the case of the Mac Pro. I pulled on the HD1 rack a little to loosen it, and that seemed to help because the Mac Pro is running and I am not noticing that buzzing sound anymore. Woohoo! :)

I am going to get some soundproof foam and put it in between the HD1 rack and the HD itself to make sure there is no vibration being transferred to the Mac Pro's case. Right now, it is running quieter than my old Power Mac G4 (dual 1.25 GHz MDD) that I sold.

I have to say one thing... I am quite impressed at how easy it is to open the Mac Pro case from the side - beautiful.
 

theblotted

macrumors regular
Nov 10, 2006
211
0
Los Angeles
i've managed to quiet down my MacPro by moving my HD's to Bay 2 & 3, where the HD's doesn't come in contact with the front Fan Assembly. i also put foam between the HD and the Bay cover (the silver "wall" part that covers and also doubles as pull-out lever for Bay).

this silenced it quiet nicely. Bay's are all on independent busses, so it's all good.

i've also managed to quiet down my internal SCSI drive using a NoiseMagic NoVibes III. awesome product.
 

Banalltv

macrumors newbie
Dec 16, 2006
5
0
Noisy

On mine that noise comes from the side door, fiddling with it or the latch or pushing the door in tighter gets rid of it, but inevitably it comes back later/days later. Next time I'll try sticking a bit of paper in it.
 

sblasl

macrumors 6502a
Apr 25, 2004
844
0
Heber Springs, AR
I use small rubber grommets/washers to mount the drives in the drive bays. This eliminates any & all vibration. You can get these at any hardware store, usually in the plumbing department. I mount a grommet/washer on each side of the drive holder for a total of 8 grommets/washers per drive.

I have 1 150GB WD Raptor and 3 500GB Seagate ST3500641AS 7200.9 drives.
 

product26

Cancelled
May 30, 2005
777
9
I use small rubber grommets/washers to mount the drives in the drive bays. This eliminates any & all vibration. You can get these at any hardware store, usually in the plumbing department. I mount a grommet/washer on each side of the drive holder for a total of 8 grommets/washers per drive.

I have 1 150GB WD Raptor and 3 500GB Seagate ST3500641AS 7200.9 drives.

Make sure that they are really thin washers, too thick and the drive will hang too low and not line up with the connections on the motherboard.

I had originally thought about using some drive vibration dampening mounts like the ones pictured with the drive cooler below, but the drive would hang waaayyyy too low to even plug in at all.
zm_2hc2_y_p.jpg
 

theblotted

macrumors regular
Nov 10, 2006
211
0
Los Angeles
I use small rubber grommets/washers to mount the drives in the drive bays. This eliminates any & all vibration. You can get these at any hardware store, usually in the plumbing department. I mount a grommet/washer on each side of the drive holder for a total of 8 grommets/washers per drive.

I have 1 150GB WD Raptor and 3 500GB Seagate ST3500641AS 7200.9 drives.

what size of rubber grommets/washers did you get?

i like to know the specific measurements so i can find the right ones, avoiding the mismatch of electrical contacts.
 

THX1139

macrumors 68000
Mar 4, 2006
1,928
0
I have 1 150GB WD Raptor and 3 500GB Seagate ST3500641AS 7200.9 drives.

How's the Raptor? Aside from the seek noise, does it resonate more than the others? I'm getting ready to order one to use as a boot drive.
 
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