Heatsink HD Bracket

Silencing hard drives, optical drives and other storage devices

Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee

Post Reply
fmah
Friend of SPCR
Posts: 399
Joined: Fri Mar 28, 2003 9:32 pm
Location: San Diego, CA

Heatsink HD Bracket

Post by fmah » Sat May 10, 2003 12:16 pm

Well, I haven't gotten my decouple bracket prototypes yet (though it might be done, I have to check). Here is my concept for heatsink brackets, which I will hope to have prototyped in a couple weeks. I have the heatsinks, just need the brackets. This is the 2 hard drive version a 4 drive version has 4 heatsinks. I would like to believe this will function passive in still air, I hope to find out soon.

Image

aphonos
*Lifetime Patron*
Posts: 954
Joined: Thu Jan 30, 2003 1:28 pm
Location: Tennessee, USA

Post by aphonos » Sat May 10, 2003 12:58 pm

How do you mount/remove the top HDD with the heatsink(s) over the mounting holes?

What's your source for this size heatsink?

Brackets are copper (or just colored for the illustration?)? Aluminum? Steel?

Mr_Smartepants
Posts: 539
Joined: Fri Apr 04, 2003 6:35 am
Location: Cambridgeshire, England

Post by Mr_Smartepants » Sat May 10, 2003 1:05 pm

According to the picture, the heatsinks are notched for screws. You remove the heatsinks, then remove the screws for the HDD. The brackets are probably tapped for threads.

My gut feeling is that heatsink performance in still air would be improved if the heatsink vanes were vertical instead of horizontal. Of course, in a fan induced airstream, horizontal would be prefered. Hmm, maybe a diagonal mounting would be the best?

Question: If the HDDs are grommet mounted in the bracket, why bother with the heatsinks on the bracket? The HDD will be thermally isolated from the bracket by the grommets. Unless you plan on grommet mounting the bracket to the case. Actually, that's not a bad idea. :)
[size=75][url=http://homepage.ntlworld.com/erik.hansen/files/pics/Sonata/index.htm]Sonata (foamed)Bezel mod[/url]
Seasonic S12-330, 2x120mm Yate Loon D12SL-12@1000RPM, P4-2.6C w/PAL8942 80mm L1A@10v, 1GB Mushkin DDR400, ATI 9800Pro 128MB w/ZM80A, Samsung SATA 160Gb
[/size]

aphonos
*Lifetime Patron*
Posts: 954
Joined: Thu Jan 30, 2003 1:28 pm
Location: Tennessee, USA

Post by aphonos » Sat May 10, 2003 1:24 pm

fmah wrote:...decouple bracket prototypes...
Mr_Smartepants wrote:Question: If the HDDs are grommet mounted in the bracket, why bother with the heatsinks on the bracket? The HDD will be thermally isolated from the bracket by the grommets. Unless you plan on grommet mounting the bracket to the case. Actually, that's not a bad idea. :)
I'm sure fmah will answer, but I think the idea is to have a HDD mounting bracket that you can suspend, yet with passive cooling.
Mr_Smartepants wrote:According to the picture, the heatsinks are notched for screws. You remove the heatsinks, then remove the screws for the HDD. The brackets are probably tapped for threads.
Yeah, if that is the case, it makes me wonder what type of conduction there will be between the bracket and the heatsinks. If they have to be removed to get the HDD in and out it makes putting thermal compund in there a messy job.

fmah
Friend of SPCR
Posts: 399
Joined: Fri Mar 28, 2003 9:32 pm
Location: San Diego, CA

Post by fmah » Sat May 10, 2003 1:37 pm

The bracket itself is made of aluminum, 1/8" for the prototype. The holes are countersink holes so when you use a flathead screw to attach the drives the surface will be flat. This is the only straightforward way to conduct heat to any style of heatsink. You may wish to use thermal grease in the gaps, but I don't know if that would affect performance much and it would be messy.

This is separate from the grommetted drive bracket, that is a separate thing.

The bracket can be screw mounted to the case by nuts mounted to the bottom of the brackets, but I would suggest using rubber feet or other foam/rubber between the bracket and case to isolate the bracket from direct contact with the chassis. Or you can just have it sit at the bottom on a mouse pad or foam or whatever you want.

The heatsinks are from this site, though I've seen them in other places.
http://corporate.auctionworks.com/store ... &sfid=1218

It possible to make a suspended bracket that has passive cooling, but it will take more space and cost a bit more. These are my tests to see what improvements can be made, but the one thing about this bracket is you can start covering it up with foam. The only thing you should not cover is the heatsinks.
Last edited by fmah on Sat May 10, 2003 3:40 pm, edited 1 time in total.

Bluefront
*Lifetime Patron*
Posts: 5316
Joined: Sat Jan 18, 2003 2:19 pm
Location: St Louis (county) Missouri USA

Post by Bluefront » Sat May 10, 2003 3:21 pm

Very nice drawing....wish I had that talent. FWIW. CompUSA sells a similar set of brackets, aluminum, in two sizes. For two or three hard drives. They have no heatsinks, but the aluminum brackets do transfer some heat.

I had two Maxtor drives in the larger size...left a space between the drives. It was sitting on a mouse pad and fairly quiet. I tried many ways to cool the setup but was never satisfied with the cooling smart temps. In order to get the temps much below 40c required extra fans. I finally gave up on the project and mounted the drives outside the case in a separate enclosure with it's own fan......

edcrane
Posts: 91
Joined: Thu May 08, 2003 1:56 pm

Post by edcrane » Sat May 10, 2003 4:11 pm

the thing I've noticed is that the hd cases are actually pretty good at dissipating heat as long as there is some minimal amount of airflow. In my case, when the drives had no active cooling and there was no front intake, they hovered around 43c. When I put them into my ghetto noise reduction box (technically still no front intake), I put a directron silencer @ 5v there to cool them. I can't imagine it's pushing much more than 4cfm, but it keeps my three drives in the low 30s.

rpc180
*Lifetime Patron*
Posts: 309
Joined: Sun Feb 09, 2003 8:01 pm
Location: Washington, DC

Post by rpc180 » Sat May 10, 2003 7:19 pm

Its alot of metal ... might give you some problems with the vibration amplification ... I once pulled a whole HD cage from an old case and decoupled it inside my present case. The HD whine was amplified more and there was relatively little thermal drop, but I didn't have massive heatsinks of it :)
Laptop : Lenovo x120e : AMD e350 : G.Skill 8GB : Intel x25-m SSD
HTPC : Intel E8400 : Gigabyte GA-E7AUM-DS2H : G.Skill 8GB : OCZ Vertex 2 SSD : Ahanix MCE-302 : Sony Bravia KDL-40S2000 : Yahama HTR-5830 5.1
Desktop | VMWare Testlab : Intel Q9550 : Gigabyte GA-EP45T-UD3LR : Mushkin 16GB : XFX HD5850 : RAID1 WD120 Scorpio : Antec Solo : Seasonic X-400 Fanless : 3 x Dell 2007FP S-IPS Eyefinity

Shuriken
Posts: 93
Joined: Fri Mar 21, 2003 1:34 am
Location: the Netherlands

Post by Shuriken » Sun May 11, 2003 12:09 am

I am not sure if this will work very well.

Your contact area is very small. And you are counting on the heat to dispensate through the sides of the harddisks.
Then the heat has to go through two barriers. First the gap between the drive and the bracket. After that from the bracket to the heatsink.

But let us know what your results are :P

MikeC
Site Admin
Posts: 12283
Joined: Sun Aug 11, 2002 3:26 pm
Location: Vancouver, BC, Canada
Contact:

Post by MikeC » Sun May 11, 2003 12:41 am

I agree with Shuriken -- there appears to be a fair amount of potential thermal resistance. Plus, the comment by rpc180 has validity too. It IS a lot of metal, and there is no question HDD vibrations can create noise with it. If you look at existing commercial solutions for HDD cooling, you will find quite a few that have massive HS structures. The issue with most of them is noise:

1) they also use fans, sometimes tiny noisy ones, and
2) they direct-couple the HDD to the HS which gets hard-bolted to the case...

Both of which cause a fair amount of noise.

But if you just took the HS casing of a good commercial HDD cooler, I think it would probably do a better job of just cooling because there is less thermal resistance between drive & HS. Just set it down on foam on the bottom front of the case and you'd get OK cooling.
Mike Chin, SPCR Editor/Publisher
Support SPCR by buying your gear through this link: Amazon

Ralf Hutter
SPCR Reviewer
Posts: 8636
Joined: Sat Nov 23, 2002 6:33 am
Location: Sunny SoCal

Post by Ralf Hutter » Sun May 11, 2003 3:42 am

edcrane wrote:the thing I've noticed is that the hd cases are actually pretty good at dissipating heat as long as there is some minimal amount of airflow. In my case, when the drives had no active cooling and there was no front intake, they hovered around 43c. When I put them into my ghetto noise reduction box (technically still no front intake), I put a directron silencer @ 5v there to cool them. I can't imagine it's pushing much more than 4cfm, but it keeps my three drives in the low 30s.
My experience matches yours 100%. In my current box I'm using a 92mm L1A @5V to cool my Barracuda IV. w/o a fan it runs at about 42-44°C, with the fan it runs at ambient (anywhere from 30°C to 36°C) temp. So my solution is to suspend or grommet mount my drives with a little breath of air flowing across them.
Main Box: Intel i3-3225, Intel DH77EB, 16GB Corsair RAM, 256GB Samsung 830, SS360GP PSU, CM PS07 case.
Music Server: Intel DH77EB + i3-3220, 2xSamsung 2TB F4, Pico PSU, Fractal Define Mini, 2xScythe Fans @250 rpm.

pingu666
Friend of SPCR
Posts: 739
Joined: Sun Aug 11, 2002 3:26 pm
Location: swindon- england :/
Contact:

Post by pingu666 » Sun May 11, 2003 5:23 am

ill find a piccy of my setup. its quiet good:)
[size=75]hardware [color=red]Killer[/color] and teddy giver. P.I.N.G.U.: Positronic Intelligent Nocturnal Gratification Unit
main rig:q6600, 4 gig ddr2, 3870, x fi, modded akasa psu, 4+hd's
leechbox, p3 something, 80gig hd, soundproofed case[/size]

pingu666
Friend of SPCR
Posts: 739
Joined: Sun Aug 11, 2002 3:26 pm
Location: swindon- england :/
Contact:

Post by pingu666 » Sun May 11, 2003 6:41 am

www.emotiveexcellence.com/pingu/via/ :)
dtemp saying 30c now, and its around 22/23 in here atm i think. drive is idle with pretty much no airflow. as it is in the pics basicaly
[size=75]hardware [color=red]Killer[/color] and teddy giver. P.I.N.G.U.: Positronic Intelligent Nocturnal Gratification Unit
main rig:q6600, 4 gig ddr2, 3870, x fi, modded akasa psu, 4+hd's
leechbox, p3 something, 80gig hd, soundproofed case[/size]

Yomat
Posts: 168
Joined: Mon Apr 28, 2003 10:41 pm
Location: Sweden

Post by Yomat » Mon May 12, 2003 5:42 pm

Hey! That looks like a good ole Taisol mod. The stuff you did under the 'dark ages' (before Zalman). :D

But how is the fan attached to the HS? .. sits there by magic? I cant see any mounting gear. :P
Chaos is easy, order is tough.

1HandClapping
Posts: 53
Joined: Fri Jan 24, 2003 3:45 pm
Location: Los Angeles, CA USA

Great easy to use heat sink for drives.

Post by 1HandClapping » Tue May 13, 2003 9:46 am

I used a spare drive cage and rested it on foam in my old system. Without a front fan dtemp ranged from 41C to 54C. With a 12v 80mm Panflo, dtemp reported about 38C(idle) to 45C(usage)


Building off the article on drive heatsink (from the main site)...

For my new system I used copper plumber's tape (a strap of metal with hole evey 1/2 inch or so) I used about 18 inches on each side. I added a grounding wire under one strap just to be sure. The spacing of the hole "fit" the fron and middle mounting holes.

I used "Safety first" table edge protection foam (for small children and sharp table edges) to decouple the drive from the removeable drive bay.
This is a dense closed cell foam.

I zip tied the drive to the bottom of drive cage then bent the copper straps into wide oval loops under the drive in the air flow of a 90mm panaflo L.

At 12v the 90mm panaflo is very noisey but the dtemp was 28C to 29C at idle 30C to 31C during defrag and program installation.

At 5v dtemp was about 1.5 C higher than when the fan was at 12 v. (However by CPU and motherboard temps rose more than 1.5C)

I am very pleased with the results. My sculpting of the straps is a bit ugly--I did it quick and dirty, but it would be easy to make cleaner.

The straps do pick up vibrations but the metal is so soft and heavy the the frequency is almost subsonic. Twanged the copper loops produces a sound the you feel more than hear. This should nt applify or sustain sounds from the drive, but may sustain low frequency vibrations from moving or bumping the computer.


:oops: I originally typed the wrong temps of my heat sinked drives. It is now fixed
Last edited by 1HandClapping on Tue May 13, 2003 11:07 am, edited 1 time in total.
-Rich

aphonos
*Lifetime Patron*
Posts: 954
Joined: Thu Jan 30, 2003 1:28 pm
Location: Tennessee, USA

Post by aphonos » Tue May 13, 2003 10:13 am

1HandClapping....can you post pictures?

EDIT: Did you try your temps without the copper plumbers tape to see if the "heatsink" makes a difference?

1HandClapping
Posts: 53
Joined: Fri Jan 24, 2003 3:45 pm
Location: Los Angeles, CA USA

Post by 1HandClapping » Tue May 13, 2003 11:01 am

aphonos wrote:1HandClapping....can you post pictures?

EDIT: Did you try your temps without the copper plumbers tape to see if the "heatsink" makes a difference?
I'll probably post pictures within a week or so. (I am using a very interesting aluminum case) My main emphasis is transfering my main system.

The original temps (41C -54C) are with an identical drive using a standard steel? 3.5" drive cage resting on foam. Admittedly, it is in a different case but still the dtemps on my new system are very good for any system let alone a quiet one. My system is not silent (yet :wink: ) but it is quieter than my quartz wall clock.

I do not hear any drive noise at idle and seek noise is very quiet. I could barely hear the drive during defrag.
-Rich

1HandClapping
Posts: 53
Joined: Fri Jan 24, 2003 3:45 pm
Location: Los Angeles, CA USA

Originally was going to model after PowerGyoza

Post by 1HandClapping » Tue May 13, 2003 2:53 pm

Originally I was going to use the plumbers tape as a heat pipe to conduct heat out of a box like Leo's (PowerGyoza's) Printer's Block Linoleum but I never got around to buying it.

Leo, It should be an easy mod to add the tape and you should get a good drop in temp.

I bought solid copper plumbers tape for about $10 for 10 feet.
-Rich

1HandClapping
Posts: 53
Joined: Fri Jan 24, 2003 3:45 pm
Location: Los Angeles, CA USA

Originally was going to model after PowerGyoza

Post by 1HandClapping » Tue May 13, 2003 2:57 pm

Originally I was going to use the plumbers tape as a heat pipe to conduct heat out of a box like Leo's (PowerGyoza's) Printer's Block Linoleum but I never got around to buying it.

Leo, It should be an easy mod to add the tape and you should get a good drop in temp.

I bought solid copper plumbers tape for about $10 for 10 feet.
-Rich

powergyoza
Patron of SPCR
Posts: 543
Joined: Mon Oct 21, 2002 1:01 am
Location: Vancouver, BC, Canada
Contact:

Re: Originally was going to model after PowerGyoza

Post by powergyoza » Wed May 14, 2003 10:45 pm

1HandClapping wrote:Originally I was going to use the plumbers tape as a heat pipe to conduct heat out of a box like Leo's (PowerGyoza's) Printer's Block Linoleum but I never got around to buying it.

Leo, It should be an easy mod to add the tape and you should get a good drop in temp.

I bought solid copper plumbers tape for about $10 for 10 feet.
That tape is a good solution 1HC. Better than aluminum foil and much cheaper than panasonic heatsink film/foil!
FS: SX1040, PSU duct, TigerMP, 2x1.4GHz, 'Cuda7 120GB, dcupld L1As (6V) ([url=http://forums.silentpcreview.com/viewtopic.php?t=34668]link[/url])

pingu666
Friend of SPCR
Posts: 739
Joined: Sun Aug 11, 2002 3:26 pm
Location: swindon- england :/
Contact:

Post by pingu666 » Thu May 15, 2003 12:40 pm

yomat, bluetac :) on the hub. i actully did a temp 80mm mod for my dad, hm just realised that had far more holding it than bluetac that i use all the time. oops:)
i did a mod wid 2 60mms and ducting, was quiet effective :) noisy tho :\
[size=75]hardware [color=red]Killer[/color] and teddy giver. P.I.N.G.U.: Positronic Intelligent Nocturnal Gratification Unit
main rig:q6600, 4 gig ddr2, 3870, x fi, modded akasa psu, 4+hd's
leechbox, p3 something, 80gig hd, soundproofed case[/size]

Post Reply