Heatsink: how to mount it?

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Re: Heatsink: how to mount it?

Postby Trixster » Sun Mar 19, 2017 8:22 am

Just for reference, many Amiga Blizzard 060 cards running at 80Mhz with rev6 060 just have a fan on the reverse of the card behind where the 060 is surface mounted to the pcb. So no heatsink or fan on the top of the cpu at all, and these cards have been running fine for years.
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Re: Heatsink: how to mount it?

Postby joska » Sun Mar 19, 2017 12:12 pm

troed wrote:A heatsink is vastly more efficient at dispersing heat than having nothing at all. Thus, if 66MHz works without a heatsink I'm assuming you can go pretty far with a good heatsink, without the need of a fan.


In my Milan060 I've had a rev 1 running at 60MHz with only a heatsink for 15 years or so. It rarely gets hotter than around 40C. But this is in a well ventilated aluminum cabinet. Inside a tight ABS shell heat will probably build up and you'll need a fan just to get air to circulate.
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Re: Heatsink: how to mount it?

Postby qq1975b » Tue Mar 21, 2017 5:03 am

Is it not possible to connect the fan on the same CT60e board? I mean gnd and +5v lines. Or is it too risky?
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Re: Heatsink: how to mount it?

Postby 1st1 » Tue Mar 21, 2017 6:21 am

Those fans unsually need 12V, at 5V they might not rotate. Better trying to connect it to +5V and +12V, that makes effectively 7V for the fan. But I would only try that if at 12V it is too loud.
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Re: Heatsink: how to mount it?

Postby qq1975b » Wed Mar 22, 2017 7:40 pm

Trying to learn...

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Re: Heatsink: how to mount it?

Postby qq1975b » Wed Mar 22, 2017 7:41 pm

Double post....sorry!
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Re: Heatsink: how to mount it?

Postby alienkidmj12 » Wed Mar 22, 2017 7:57 pm

cant we just use a heatsync with pushpins ?

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Re: Heatsink: how to mount it?

Postby 1st1 » Wed Mar 22, 2017 8:09 pm

What is pushpins?

Note, that 68060 CPU is bigger than 808486 and smaller thann Pentium PP54C/P55. So any fixing mechanism of those CPU heatsink won't fit.
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Re: Heatsink: how to mount it?

Postby alienkidmj12 » Wed Mar 22, 2017 8:23 pm


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Re: Heatsink: how to mount it?

Postby alienkidmj12 » Wed Mar 22, 2017 8:24 pm

you would think if he has put holes in the board for pushpins then there must be heatsinks to fit ?

if we measure from bottom left to top right, then it is about 80x70mm, the inner is slightly smaller.

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Re: Heatsink: how to mount it?

Postby 1st1 » Wed Mar 22, 2017 9:12 pm

The holes in ct60 board only fit for M3 screws, like I did. See photos on 1st page of this thread.
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