On Nov 4, 2010, at 8:09 AM, ah...clem wrote:
On Nov 4, 12:16 am, "Tina K." <[email protected]> wrote:
That might not be the case, I do remember some Apple model being
manufactured with too much thermal paste by mistake, but I don't
remember which model it was.
that was clearly a manufacturing mistake. i had a PB G4 1.67 hi-res
model, and the processor burned out. when i disassembled it, i
discovered that there were gobs and gobs of the thermal paste. WAY
too much, and that undoubtedly contributed to the failure. i scraped
chunks off the heatsink and when i replaced the mobo i used the proper
amount, and it is still going strong.
I have found this thicker blue paste on just about all the G4
PowerBooks and DVI model Titanium Powerbooks, pretty hard to clean
off also, In fact most of the heat sinks are covered completely with
the paste beyond the processor. It seems all the Apple factory
assembled units have a pretty thick paste compared to the compounds
most of us buy and use. Plus in a lot of cases the fans will usually
let you know if your paste job is bad, it's an indication I forgot
again to apply it :-)
The desktops on the other hand are different in the type and amount
of paste used so I think there must be some reason for this leading
me to believe that ambient expansion and flexibility are an issue in
keeping a good contact with the processor and heat sink, hence the
spring loading on the desktop models that would be impractical on the
PowerBooks.
John Carmonne
Yorba Linda USA
Sent from my TiBook 667
--
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 [email protected]
For more options, visit this group at http://groups.google.com/group/g3-5-list
