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-   -   passive cooled HDD housing (http://www.madshrimps.be/vbulletin/f10/passive-cooled-hdd-housing-4253/)

TeuS 8th March 2004 22:33

passive cooled HDD housing
 
on #1 of my priority list: get my backup/linux machine up & running again. I'm using a 20GB HDD in it and it's pretty loud.

JMke hinted me he put an HDD of him in a CD rom drive, and so I've placed the HDD in a CDrom housing, stuffed with isolating mats. the HDD got isolated and the temps were high.

I'm building it in the drive now. not only it will be mounted inside with screws, it'll get some proper cooling too. I'll use aluminium profiles to conduct the heat of the sides (there the HDD creates most heat) to the top of the CD rom drive. I'll get another profile tomorrow and put those U profiles on top of the housing

I'm wondering, what thermal interface material should I use to improve the heat transfer? thermal paste is too expensive for this, because I'll have to cover about 120cm² for the Alu profile (connecting the external case and the HDD) plus about 200cm² for the heatsinks on top of the drive

so eh... what stuff would I need to improve the contact between the metal parts? it may only cost less then 5€ as this is a ghetto mod. it would be nice if the thermal interface material can fill pretty big gaps, because the side of the HDD is not flat and there are pretty big gaps in the side of about 1mm deep.

attach: scheme

jmke 8th March 2004 22:43

get some "white thermal goop" in your local hardware store, that should suffice for sure

TeuS 8th March 2004 22:47

Quote:

Originally posted by jmke
get some "white thermal goop" in your local hardware store, that should suffice for sure
i've got an industrial tube here and it's still too expensive in my humble opinion. it's not the best solution, each time I change the drive it's a mess and I'll spill an entire tube on it

jmke 8th March 2004 22:50

there's tape out there that does almost the same, used between HS&memchips on videocards

but I don't know where you could get it though, maybe @ that same store?


IKilledMyAGOIA 10th March 2004 07:53

yeah, the black phase change TIM would work between the bracket and the hd, but do you think just having it attach to the sides will transfer enough heat out?

TeuS 10th March 2004 08:10

Quote:

Originally posted by IKilledMyAGOIA
yeah, the black phase change TIM would work between the bracket and the hd, but do you think just having it attach to the sides will transfer enough heat out?
good question!

the HDD is only 20GB and is thin, so it doesn't generate very much heat. when the HDD was in the CD-rom drive, it was isolated and the heat couldn't get away. the HDD was over 50° after a while, and the CD-rom drive housing was feeling warm too.

with this system I want to give heat at least a chance to get away, so it does not stay inside the housing creating a nice glasshouse effect

FreeStyler 10th March 2004 10:15

greenhouse effect.

I also think ordinairy white goop is the best option.
If you're really planning on removing the drive that often, get a seagate.

TeuS 10th March 2004 12:16

Quote:

Originally posted by FreeStyler
If you're really planning on removing the drive that often, get a seagate.
that's against my principles!

jmke 10th March 2004 12:30

removing drives is against your principles? :wtf:

TeuS 10th March 2004 12:38

Quote:

Originally posted by jmke
removing drives is against your principles? :wtf:
it's against my principles, for example: I buy a new harddrive because another hard drive I've bought is too loud

FreeStyler 10th March 2004 12:55

Then make sure you're not going to have to remove it from it's cage. Then you can even use AS epoxy.

piotke 10th March 2004 13:46

Quote:

Originally posted by TeuS

it's against my principles, for example: I buy a new harddrive because another hard drive I've bought is too loud

But buying heatsinks/cooling solutions, which make it more expensive in the end is ?

TeuS 10th March 2004 14:06

Quote:

Originally posted by FreeStyler
Then make sure you're not going to have to remove it from it's cage. Then you can even use AS epoxy.
warranty, anyone?

Quote:

Originally posted by piotke

But buying heatsinks/cooling solutions, which make it more expensive in the end is ?

lol?

CDrom drive: free
aluminium profiles: 3€
thermal interface material: 2€ max

catch my drift?

piotke 10th March 2004 14:25

hmm, in that case, but you won't be able to get rid of the high pitched noise.

FreeStyler 10th March 2004 17:08

ordinairy thermal goop.

BTW epoxy on this is less important since you can give it a good wank if it won't come off. It's not like the GPU core is going to come off eh.
even chisel it if you like (boil it maybe)

sophron 10th March 2004 23:12

i'm using my 80GB in the cdrom slot too. I use blue foam kind of sound&heat insulator... I squizzed foams both sides and botom,up are free. I'd tought that this way I can dissolved hot air from top. Bu you are sayng that the most heat producing area is sides. Is that true? If its true then I'm just making things worse huh???

TeuS 10th March 2004 23:33

hard drives produce most heat at the sides indeed. the top and side HDD housing is of metal, so it's not that bad the sides are covered. the heat can get out at the top

sophron 11th March 2004 23:09

once I've red somewhere that the most heat sensitive part is the bottom board of the HD,furthermore if you cannot cool bottom u can kill the mobo of HD it says.... Is that true???

TeuS 11th March 2004 23:19

Quote:

Originally posted by sophron
once I've red somewhere that the most heat sensitive part is the bottom board of the HD,furthermore if you cannot cool bottom u can kill the mobo of HD it says.... Is that true???
indeed, this is because the electronics can't bear high temperatures.

it's not very likely a bad HD kills the mainboard but it *IS* possible. if you send 5v or 12v through the data lines (a few millivolts) won't it do any good

TeuS 13th March 2004 17:01

housing done. stuffed it up with as much foam as possible

unfortunately, it doesn't isolate as well as it used to. I still hear the high pitch. monitoring the HDD temp btw, now 30°

no airflow and no heatsinks on the CDrom drive

edit: 35°


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