Inexpensive Copper Heatsinks - Anyone Have a Good Source?

[EvilBellyLint]

I'm looking for some inexpensive copper sinks to use for various
projects, such as adhering some to suspended HDDs for thermal
transfer, etc...

Anyone have a cheap source of copper sinks of varying sizes?

TIA


EBL

[EvilBellyLint]

so far this place looks to have some decently priced smaller cooper sinks:

http://www.surplussales.com/Heatsinks/HeatSink1.html

Or I could canabilize the sink from this:http://www.weirdstuff.com/cgi-bin/item/13188


ack... 9-bucks to ship it though:(

[little_scrapper]

No copper, I have access to tons of aluminum HS's from old 486's and pentium 100's. You know those old 2-3 inch squares. But they are really only good for cutting up into smaller ram and fet sinks. Although if you know how to drill them acurately you could use them for oversized SB sinks as they redily take about any fan that allows the screws to sit within the edges.
http://img145.imageshack.us/img145/483/img0170ow5.jpg

I have a bunch of these types. The smaller ones in the front make excellent ram sinks as the base is very thin and the fingers are fairly dense. And they weight almost nothing.

[EvilBellyLint]

No copper, I have access to tons of aluminum HS's from old 486's and pentium 100's. You know those old 2-3 inch squares. But they are really only good for cutting up into smaller ram and fet sinks. Although if you know how to drill them acurately you could use them for oversized SB sinks as they redily take about any fan that allows the screws to sit within the edges.
http://img145.imageshack.us/img145/483/img0170ow5.jpg

I have a bunch of these types. The smaller ones in the front make excellent ram sinks as the base is very thin and the fingers are fairly dense. And they weight almost nothing.

How hard do you think they wold be to mod for HDD sinks? (plan on adhering
them to the sides of hard drives using Arctic Silver Thermal Adhesive...)

Thanks.

EBL

[little_scrapper]

All you would need is some Thermal glue or if a non permanent solution is desired then you simple drill mount holes or make a contraption that holds the sinks in place. Like a few rubberbands or something.

[Serra]

Before you go sticking heatsinks to hard drives, I want to make sure you have read the Google research paper on the effects of heat on hard drives. The heats you'll see in most consumer and enthusiast enclosures are well within the range that is good for them. The basic idea to impart here is that we all know they fail most regularly due to mechanical failure, and mechanical failure is most likely when everything is cooler (joints are stiffer, lubricants more viscous, etc).

[[XC] gomeler]

Serra has a point but I don't think this guy has any plans for going sub-ambient ;) In the end though there isn't a whole lot of need for hard-drive sinks, just a little air-flow and they'll stay under 40C.

[EvilBellyLint]

Before you go sticking heatsinks to hard drives, I want to make sure you have read the Google research paper on the effects of heat on hard drives. The heats you'll see in most consumer and enthusiast enclosures are well within the range that is good for them. The basic idea to impart here is that we all know they fail most regularly due to mechanical failure, and mechanical failure is most likely when everything is cooler (joints are stiffer, lubricants more viscous, etc).

These will be decoupled from the PC chassis, hence will lose the benefit
of that additional heat dissipation & thermal transfer... which is why I'm
looking into attaching sinks to counter that.

EBL

[zanzabar]

u shouldent need them use smart to moniter the temps and they wont go into the 80c range unless u have a sealed box thats non conductive like a wooden crate

[xMrBunglex]

according to Everest, my hard drives are at 25°C right now. even the hard drives in TiVo's aren't cooled. they just don't get that hot.

[SP1]

What about these?
http://cgi.ebay.co.uk/Custom-Cooper-Heat-Sink-4-3-X-2-93-in-1-4-in-Thick_W0QQitemZ300205105591QQihZ020QQcategoryZ8014 9QQtcZphotoQQcmdZViewItemQQ_trksidZp1713.m153.l126 2

[EvilBellyLint]

according to Everest, my hard drives are at 25°C right now. even the hard drives in TiVo's aren't cooled. they just don't get that hot.

Perhaps I'll just create my suspension system and monitor temps
for a while to see how it goes...


EBL

[EvilBellyLint]

What about these?
http://cgi.ebay.co.uk/Custom-Cooper-Heat-Sink-4-3-X-2-93-in-1-4-in-Thick_W0QQitemZ300205105591QQihZ020QQcategoryZ8014 9QQtcZphotoQQcmdZViewItemQQ_trksidZp1713.m153.l126 2

Thanks for the link :)


EBL

[Serra]

These will be decoupled from the PC chassis, hence will lose the benefit
of that additional heat dissipation & thermal transfer... which is why I'm
looking into attaching sinks to counter that.

EBL

A lot of people here just run their hard drives mounted on elastic bands with no issues, so you should be ok.

[EvilBellyLint]

A lot of people here just run their hard drives mounted on elastic bands with no issues, so you should be ok.

Cool. I guess the only drive I'm at all concerned about is the 15K RPM
boot drive.


EBL

[little_scrapper]

Will the torq of a spin up/down cause a suspended drive to swivel? Or doent it matter.

[Underwater Mike]

Will the torq of a spin up/down cause a suspended drive to swivel? Or doent it matter.

Even if it did, the suspension system should readily absorb the force.