Thermal paste question.

[powermi]

As I'm gonna use my dual 1ghz QS as daily driver, wanna reapply thermal paste on the chips.
I've noticed that were the original paste stickers on the cooler. After cleaning it I just applied abit of thermal paste right over the CPUs, do you apply thermal paste also on the surrounding plastic cover of the chip?
Any pic of the process would be super helpful. Thanks

 

[bjar]

I just put a very small amount right on the top of the cpu. No need to put any on the plastic.

 

[velocityg4]

Thermal paste's only role is to fill the tiny imperfections of the heatsink to CPU connection. To improve thermal transfer. It just needs a tiny amount of paste. Which gets squeezed and spreads. If this makes you uncomfortable. Thinking it may not cover the surface. Use something to spread it super thin, thinner than a sheet of paper. Such as with a credit card. Before clamping on the heatsink.

 

[z970]

I have always found the plastic covers a useless addition and royal PITA to work around when cleaning old applications, therefore I simply remove them outright whenever I am given the opportunity.

You may or may not feel inclined to do the same for the reasons outlined above or otherwise.

 

[powermi]

Thanks is what I did, I was afraid of putting to much, so just a small amount. Took a while to clean the heat sink from the old paste.

 

[ervus]

The dual 1GHz CPUs run really hot. I think you would see more benefit from adding a fan or changing out the existing fan with one that moves more air. Here is some info:

Help me pimp out a Graphite

I used a small set of fans harvested from an old maddog hdd cooler to help move air around my cpus & gpu in my QS. I’m not sold on the absolute necessity of them but it does help. I also believe that replacing the old 120mm fan with a high quality new fan like a noctua really helps with cage...

forums.macrumors.com

 

[powermi]

Thanks, I've installed a couple of high flow fans on the case.
During the OSx install I'm receiving a message telling to power-off the computer, and I don't know if its related to an overheating issue.

 

[ervus]

If this is what you see:

...then it could be the CPU is flaking out. What happens if you leave the case open and try again?

 

[powermi]

If this is what you see:

...then it could be the CPU is flaking out. What happens if you leave the case open and try again?

Yes, that's excactllly the message. Tried with the case open and happens the same.

 

[ervus]

That is usually a hardware problem if you're just trying to do a fresh install of OSX. You could try pulling out extra PCI cards, all but one stick of RAM, etc. to narrow it down. You could also try one of the apple hardware test CDs. If you have a different CPU to try, swapping that might show where the problem is. If that fixes it, then the CPU could be baked. You could disable one of the CPUs in OF to see what that does. Maybe it's only half baked...