174 degrees F too hot?

So...I'm assuming that this is what's causing my computer to shut down. i'm using temperture monitor and it says my CPU board is 174F which is well above the upper limit of 148F. Any ideas on what I can do? My computer has been shutting down randomly and sometimes wouldn't start. At first I thought PMU so I reset that but that didn't work. then I saw that it was too hot. What can be done? Thanks!

Hi,
Actually, according to Apple the max limit of 95 degrees Fahrenheit! Look at the set up manual and it says it right there.. but, it seems that we have all determined Apple's notice might not be correct. My MDD right now is at 98.6 and its taxing right along and staying low. Dunno, for some reason I have been SPARED the problems of over heating. Also, is your MDD a FW800 MDD? I have heard that MDD's with the FW800 are more prone to over heating than the standard ones which boot into OS 9.2.2
Also, make sure you are running nap mode, also get two 120MM fans like I have and a PCI slot fan.
Even before I bought my MDD machine from a local neighbor, he never had ANY, and I mean ANY overheating problems with his machine. Although, the max temperature I have seen on mine is 130 degrees which to me is sometimes too hot, but not over the limit. Never had my machine ever gone above 135 or even to the 140 mark. I pray tell that all I am saying about my machine being SPARED the overheating problems continues to be that way.
I do feel your pain and frustration. Just get nap mode enabled and get a couple of fans. Notice on your logic board to the FAR RIGHT near the airport and modem there should be a two-pin connector for hooking up another fan.
My system's cooling scheme is as such: one 120MM fan underneath the front drive cage, blows out ice cold air(I feel the bottom of my machine and its ice cold). Another 120MM fan connected to the two pin connector on the logic board, and mounted on top of the roof of the optical drive chassis. A PCI slot fan next to video card.

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