Heatsink/fan for 68040

[Oldsmobile_Mike]

Hi, can anyone recommend a good, low-profile heatsink fan combo for 68040?  GeForce 040 card.  Hadn't turned my A2000 on in a couple weeks (swamped at work!), went to show it off last night and the darn thing fell right off.  Good thing I had the case open and noticed it right away.  Always something, you know?    I could stick the old one back on but figure it's about time to replace it with something more modern (and quieter).

[mechy]

something like this should do:

http://www.ebay.com/itm/Intel-486-Chipset-40x40x10-mm-CPU-Cooling-Fan-w-4-Pin-Molex-Power-Heat-Sink-/280934992949?pt=US_CPU_Fans_Heatsinks&hash=item416907cc35

should be slightly smaller than the 040 chip.
you will probably have to snip the clips off that hang down the bottom and glue the sink to the cpu.

[danbeaver]

Mech is correct; put a dot of thermal paste in the center and on the four corners of the CPU place a small dot of superglue, then press.  No, the superglue is not permanent, a fine screwdriver will pop the heat sink off.

[som99]

Even better then thermal paste + super glue is Arctic Silver Thermal Adhesive, it's as it name implies a thermal paste that harden as glue and stick the heatsink on there with thermal paste properties, I use it as a mad man on many things since it works great.

A knife and some tinkering to get the heatsink of if you ever want and then just acetone to clean the heatsink/CPU from the thermal adhesive off



Ive used this for quite heavy coolers on x86 PC's to fit CPU coolers that where for different sockets and it works like a charm!
Ive also used this for all things I want to put heatsinks on that has no mounting holes like vRAM, mosfets etc

[LaserBack]

time to modernize
 this doesn't need a fan

http://www.blogcdn.com/www.engadget.com/media/2012/04/nofan.jpg

or this

http://img.gawkerassets.com/img/185f2b1qia6l4jpg/original.jpg

[som99]

time to modernize
 this doesn't need a fan

http://www.blogcdn.com/www.engadget.com/media/2012/04/nofan.jpg

or this

http://img.gawkerassets.com/img/185f2b1qia6l4jpg/original.jpg

Uhm? Do you honestly think it's a good idea to rest 730 grams on the CPU board? Then remove internal drives + the drive bay and the PSU to fit that giant cooler then he needs to make a 15cm hole in the top of the case to fit it and loose the ability to have a monitor on the case.

Does that sound practical to you?

[LaserBack]

Uhm? Do you honestly think it's a good idea to rest 730 grams on the CPU board? Then remove internal drives + the drive bay and the PSU to fit that giant cooler then he needs to make a 15cm hole in the top of the case to fit it and loose the ability to have a monitor on the case.

Does that sound practical to you?

yes,you can modify the fan to fit in the case using this

http://upload.wikimedia.org/wikipedia/commons/a/a2/Rotating_grinder.gif

the most important thing is the base of the cooler and the pipes
such cpu' coolers supports up to 95w cpus,work even on core I5 sandy bridge processors
imagine it ...the 040 dissipates only maybe 10w,you need less  of a quarter of such heatsink

[som99]

yes,you can modify the fan to fit in the case using this

http://upload.wikimedia.org/wikipedia/commons/a/a2/Rotating_grinder.gif

the most important thing is the base of the cooler and the pipes
such cpu' coolers supports up to 95w cpus,work even on core I5 sandy bridge processors
imagine it ...the 040 dissipates only maybe 10w,you need less  of a quarter of such heatsink

But then why even bother with those fan less behemoth if you are going to destroy it? They are expensive and designed to work as is, why not just take any random modern cpu cooler with heatpipes for a few bucks and modify them instead? I don't know the heat output from the 040 but I bet you could do it fan less with far easier methods.

Also id rather have a low noise 13dB fan on a small heatsink because then I know it will not run to hot without risking anything. Also a small 40mm low dB fan will not probably be noticeable outside the chassi, the PSU fan likely sounds quite a lot more, so why bother making a fanless solution?

I don't know if you have used Fractal Designs silent series 40mm fans, I have and own over 10x of them and id put hands down you wont hear them outside the case.

Edit: @Oldsmobile_Mike - I would get a small fitting heatsink, VGA/Chipset ones can be found in copper, then put a low noise fan on like this one and you be set
http://www.ebay.com/itm/Fractal-Design-Silent-R2-40mm-FD-FAN-SSR2-40-/370839297223?pt=UK_Computing_Other_Computing_Networking&hash=item5657be9cc7

[mechy]

If noise is a issue ,you can always run the fan with +5 and +12 which yields around 7v or so. you lose some cfm but the 040 is quite easy to cool and it should not be a problem.. Almost any air movement over the sink will do a great deal of cooling. some of the suggestions above are overkill.

The artic silver is a good paste but in my experience of 20 years on amiga stuff i have found the regular silicon based white grease works just fine on any 68K cpu. Unlike arctic silver its also not conductive so if it gets on something it won't cause a short.

[Oldsmobile_Mike]

Thanks guys! @Mechy - I'm ordering that one you linked to today, I've already got thermal paste, Artic Silver, and superglue, so I think I'll be fine. Wish I could go with a fanless solution, but space between the CPU card and my drives & card reader is at a premium. I was also eying those Fractal Designs fans from the other thread, don't think they'd fit though!

[Oldsmobile_Mike]

Finally getting back to this, thanks again for the link, fan fits great (after a little filing) and oh so much quieter than stock!  Now go just get back to all my other projects (like getting PFS installed, getting my clock working right, getting my Thylacine working, etc., etc.).  Too much of this:  :drink: and not enough time!  

[orange]

I had same problem, but used double sided thermal sticky tape. (I don't like superglue)

[NovaCoder]

Finally getting back to this, thanks again for the link, fan fits great (after a little filing) and oh so much quieter than stock!  Now go just get back to all my other projects (like getting PFS installed, getting my clock working right, getting my Thylacine working, etc., etc.).  Too much of this:  :drink: and not enough time!  

Looks cool, but why does it have that metal box thing around the CPU?   Does it need it?

[Oldsmobile_Mike]

That's the design of the thing.  Should have a silver cover on it but won't fit with my new fan, most owners remove it.  Probably unnecessary, IMHO.  Ask GVP.  :p

[NovaCoder]

That's the design of the thing.  Should have a silver cover on it but won't fit with my new fan, most owners remove it.  Probably unnecessary, IMHO.  Ask GVP.  :p

Yep that's what I was thinking, probably just ditch it to improve air-flow (and looks!)