-=> MATT MC_CARTHY wrote to WAYNE CHIRNSIDE <=-

 MM> 18 Sep 2003, 21:04, Wayne Chirnside (2:252/171), wrote to All:

 MM> Hi Wayne.

 WC> Ok I've never seen a Pentium MMX or any other CPU
 WC> with contacts on the top of the microprocessor.

 MM> Nor have I!  The original Pentium series was a "PGA", Pin
Grid Array
 MM> type chip.
 MM>  A large reddish colored ceramic square with all the pins under it.
 MM> Later they came up with the smaller black pinless plastic chip intended
 MM> to be soldered directly onto MBs, but instead soldered to a small PCB
 MM> with all the pins on it to be used in the socket motherboards.  This
 MM> was (I think) the "PFPG" chip, Plastic Flat Pinless Grid
chip soldered
 MM> onto an adapter board.  What I think you are seeing is the top ends of
 MM> all the pins sticking through the adapter PCB.

 That's what it looks like.

 MM> If that is the case,
 MM> the tops of the pins should be well below the top of the CPU itself,
 MM> and a regular heatsink that uses a flat strap to snap onto the tabs of
 MM> the socket should work fine.  The bottoms of the heatsinks are normally
 MM> anodized, and are non-conductive, unless the anodizing has been
 MM> machined off.

Well I've never seen a flat strap heatsink retainer either
but shall check into a computer build shop for one.

I was thinking about a dab thermal compound and a dab of gel
super glue around the edge of the thermal contact area.
What do you think about this?

I've a small C-Clamp to secure until the glue sets up.

 
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