I bought one that had this silicone material on it.... I took an exacto knife and carefully removed it due to the fact that I thought it looked like someone had put it on there after the fact. The heat sink came with it from apple, albeit I can't figure out why? The new altered heatsink worked just fine after I "cleaned the silicone off" . I imagine it will be just fine either way. Jeff On May 12, 2011, at 10:41 AM, Alex Barnes wrote:
> That looks like glue to hold the heatpipes in (?). I guess in earlier > heatsinks Apple used glue to hold the heatpipes and then in later models they > used soldering. > On May 12, 2011, at 11:16 AM, rogerd095 wrote: > >> Alex, >> >> Thanks for the reply. >> >> Take a look at the picture below : >> >> http://tinyurl.com/6yn8hfx >> >> >> On May 11, 11:26 pm, Alex Barnes <kab...@gmail.com> wrote: >>> That is thermal paste. It transfers heat to from the processor to the >>> heatsink (I think you knew that). Do you have a URL where I could see the >>> picture with the thermal paste? >>> On May 11, 2011, at 3:13 PM, Roger Dickinson wrote: >>> >>>> I'm about to exchange the 24-fin aluminium heatsink in a G4 MDD dual >>>> 1.25 GHz (2002) for the more efficient copper heatsink from the 1.42 >>>> GHz MDD. One thing puzzles me, though : the bottom of the copper >>>> heatsink I have has some sort of gloop on each side of the heat pipe, >>>> just like that shown in the MDD's service manual, but the one pictured >>>> in the xlr8yourmac.com article on doing this swap >>>> (<http://www.xlr8yourmac.com/systems/MDD_copper_heatsink_swap/mdd_coppe...>) >>>> has none. I am sure the mod. article is accurate, so is this stuff not >>>> really necessary? Anybody know why it's present on some but apparently >>>> not all heatsinks of this type? >> -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
