2009 Mac Pro Overheating Issues - Help

[PowerMac G4 MDD]

I used the springs from the white standoffs everyone say they work.

I used standoffs from old Compaq Presario.

So far, on the machines of mine that I have looked at, the only things I see that resemble a smaller heat sink with standoffs is this smallish heatsink that has two metal clips holding it down--pretty much identical to how it is on my 1,1 model Mac Pro.

 

[PowerMac G4 MDD]

Hello Hope you get to fix your brother's cMac Pro. He's very lucky to get one at no cost. As far as I know it's seldom that the northbridge has heat issues in these towers unless it was used heavily with too much ambient heat.

Yeah - as he's the third owner now, I wouldn't know how this machine was used. I'm sure, though, that it could have been slightly abused in that regard. Hopefully I can just get in contact with that guy who recommended stand-offs that ended up working well--and then some.

 

[PowerMac G4 MDD]

Are these the correct products? There are some that include screws.

http://www.ebay.com/sch/i.html?_fro...S0&_nkw=Mac+Pro+northbridge+heatsink&_sacat=0

 

[pastrychef]

Or maybe thermal adhesive would be better?

Personally, in this instance, I would go with nuts and bolts before thermal adhesive.

 

[adam9c1]

Those eBay items are heat sinks for previous gen Mac Pros. I have provided you a picture of your CPU tray and pointed to NB heat sink.

 

[adam9c1]

Look at something like this..

 

[PowerMac G4 MDD]

How odd... never seen that before.

 

[pastrychef]

I feel you are really overthinking this. Either get replacement plastic retainers or use nuts and bolts to secure the heatsink and you are done.

 

[adam9c1]

How odd... never seen that before.

I meant to buy these heat sinks and use the stand offs from those with the original heat sink.

 

[PowerMac G4 MDD]

Well, I guess I didn't read this (http://www.xlr8yourmac.com/archives/jul14/071114.html) thoroughly enough, as it gives a link to the pegs people usually use: http://www.akasa.com.tw/search.php?seed=AK-VCX-01

I'd pull some off an old Windows PC, but I have yet to see a Windows PC's smaller heat sink hold on with pegs. Instead, the ones in mine are held down with a metal bracket.