Mac Pro :: CPU B Temp Is 126c Is This Normal / Mac Pro Fan Is Like A Jet Plane?

Oct 18, 2008

i've recently bought a mac pro with this spec:-
1x2.8 ghz quad core
2 gigbit ram
320 hdd
ati 2600

my new mac pro was cool in the beginning but, these last days is acting really weird, right now i'm using my mac pro like it's a jet plane about to take off, the sound of the fan is to noisy, i mean i've checked my temperatures and fan speed and i think every thing is normal but this:-

CPU B temp is 126c or 260f
fan speed of the exhaust and cpu fan are between 2700-2800 rpm

this only happens when i run games with high graphic or when i use video codecs ("xilisoft ipod video" convertor avi -> mp4, "submerge" for adding subtitle to movies and xilisoft dvd to ipod convertor) or a program that needs high speed, but the fan and the temp does not cool down even if close all of the application , i can only stop it when i shut down my mac pro , so every time when the noise start, i get this fear and shut down my mac pro for few seconds then i turn it on again to cool it a little bit, and some times it doesn't unless if i turn it off for more than 5 minutes

i even opened my case to look inside and touch my parts (ram, gpu, logic board, cpu) of course after i unplug the power cord , but what i found is that my ati gpu card was very hot when i checked the temps with my fingers i kind of burned my finger when i touch the ati card , is this is normal??

and my istate pro is telling me that cpu b is 126c but the gpu is the hottest part in the computer

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