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ISO clip-on 486 heat sinks

Al Kossow

Documentation Wizard
Joined
Sep 1, 2006
Messages
2,907
Location
Silicon Valley
heat sink stock is trivial to find. ones with channels for clips, and the clips themselved that attach
to the pin side of the chip are the problem
I'm trying to avoid the 3M adhesive mounted ones, which are also trivial to find. fyi, they are 42x42mm, a common chinese size is 40x40
It is possible to remove the adhesive mounted ones with a heat gun. This all started when I discovered
that they don't mark the processor type on the pin sides of the processor, and someone gave me
a whole box of 486s at random speeds and vendors
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
40,258
Location
Pacific Northwest, USA
It seems to me that a Socket 5/Socket 7 heatsink is close enough in side to a Socket 3 that some have used them for 80486s.
However, I do remember that not all 486 systems used the ZIF socket with clip lugs. Some used heatsinks that clipped directly to the chip; some used headsinks that were secured through spring-loaded standoffs to the PCB. And of course, the "glued on" ones.

here's one with a wire clipping onto the ZIF

Thermal tape ones are really cheap
 

NeXT

Veteran Member
Joined
Oct 22, 2008
Messages
7,088
Location
Kamloops, BC, Canada
I have not seen that style of heatsink commonly in years. Most of the 486 machines I saw those in were recycled in the later part of the 2000's.
 
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