Northbridge temperature is 80ºC in my Mac Pro 2006

lbodnar

macrumors regular
Original poster
Jan 5, 2004
236
0
UK
No load temperature of my Mac Pro 1,1 2006 is 80 degrees C.

Is this normal?

Leo
 

Attachments

Spacedust

macrumors 6502a
May 24, 2009
934
95
Yes. That's why Mac Pro 2008 is having a large radiator on chipset with heatpipes.

BTW. What's that program ? I want it ;)
 

bearcatrp

macrumors 68000
Sep 24, 2008
1,604
3
Boon Docks USA
Get a north bridge cooler. Just google it. Get a fanless one if you can. One problem is fitting them on a mac mobo. You can make adjustments to make it fit though.
 

zachsilvey

macrumors 6502
Feb 5, 2008
444
3
Battle Ground
I am not 100% sure but I think that with smcFanControl you could up the minimum fan speed. The machine would be a little louder but you could get the temp down.
 

snouter

macrumors 6502a
May 26, 2009
767
0
That the Northbridge is higher than everything else is not surprising. They run hot.
 

lbodnar

macrumors regular
Original poster
Jan 5, 2004
236
0
UK
The chipset's datasheet states in absolute maximum ratings section that storage temperature should not increase 85ºC. I can't seem to find absolute maximum operational temperature. Personally, this is quite a thin margin between actual operating parameter and absolute maximum value (=no go zone in electronics design lingo.)
 

lbodnar

macrumors regular
Original poster
Jan 5, 2004
236
0
UK
Update: I have taken the heatsink off. It had horrible bottom surface so I sanded it flat and put some fresh thermal compound on it.

After assembling it all back I had operating temperature drop from almost 80ºC to 63-65ºC. Cool! :cool:
 
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