2010 Mac Pro, Overheat, Fans Won't Speed Up

Hi all,
I was using my 2010(5.1) quad core single CPU mac pro for video conversion using Handbrake. I have the Hardware monitor installed and was able to see the core temperatures from the odd core numbers(actual cores) went up to 86+ degree celcius(NOT Fahrenheit). What I noticed was that the Fan speeds were still pretty much the same as when the computer is idle(a very slight increase). I saw that another person also experience this with the 2009 mac pro: http://www.xlr8yourmac.com/feedback/2009_mac_pro_cputemps/2009MacPro_cpu_temps.h tml
This is a quote from the article: And I still wonder why the 'booster' fans (in the heatsinks) never seem to spin up very much off the default speeds. (On my dual 2.66, even with cores(not the heatsink or diodes) in the 80's C the booster fans are reported to only be a hundred rpm or so higher than idle on my system.)
I wonder about the same thing:why the 'booster' fans (in the heatsinks) never seem to spin up very much off the default speeds?
Do we both have defective computers? Or something else is going on.
I realized these CPUs will shut itself off when it reach critical temperature(might cause permanent damage) at about 95-100 degree Celcius, but I don't understand why my mac pro doesn't just boost up its fans at that point closer to the hard shutdown(86+ celcius).
Does anyone that have the 2009 or newer mac pro(4.1 or 5.1) knows at what core temperatures that the fans speed up considerably?
Thank you

d10nisius wrote:...I tried the the temperature gauge, but for whatever reason it didn't work correctly on my mac pro(2010)...
Initial, that app, which was originally called '"Check My Temp" didn't work properly with my Mac Pro either, but updates got it working better.
...Does your fan ramping up pretty often? When it is speeds up, can you tell me what your cpu core temperature?...
Using smcFanControl, both one of the fan speeds and one of the temperature readings is always in the menu bar. When I see it approach 100ºF, I switch to a higher fan speed combination, so I'm usually ahead of whatever SMC will eventually do automatically. Right now checking Check My Temp, and using Apple's default fan speed settings, CPU A Core is 152ºF, its heatsink is 90ºF, the BOOSTA default fan speed is 800 RPM but the actual speed is 1070 RPM. Of interest is that the iStat Pro reading for CPU A is also 90ºF, suggesting that it may not be reading the core temp, assuming that core temp reading is correct. Ambient is about 68º. One thing that may make a bit of difference is that I'm filtering the air in the CPU tunnel (the bottom section with the intake fan up front, the CPU fan in the processor tray, and the exhaust fan in back) since that's the hardest to clean out. That may restrict the air flow a bit but the filter does capture dust and, especially in warm weather, I make sure to keep it clean.

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    I'm running OS X Mavericks 10.9.2
    mid-2010 Mac Pro
    8 core processor (2 X 2.4gHz)

    According to this article, your EFI firmware is up to date:
    Computer
    Model identifier
    EFI Boot ROM version
    SMC version
    Mac Pro
    Mac Pro (Late 2013)
    MacPro6,1
    MP61.0116.B04 (EFI 2.0)
    2.20f18 (SMC 2.0)
    Mac Pro (Mid 2010)
    MacPro5,1
    MP51.007F.B03 (EFI 1.5)
    Mac Pro (Early 2009)
    MacPro4,1
    MP41.0081.B07 (EFI 1.4)
    Mac Pro (Early 2008)
    MacPro3,1
    MP31.006C.B05 (EFI 1.3)
    Mac Pro (8-core)
    MacPro2,1
    MP21.007F.B06 (EFI 1.2)
    1.15f3 (SMC 1.1)
    Mac Pro (Original)
    MacPro1,1
    MP11.005C.B08 (EFI 1.2)
    1.7f10 (SMC 1.1)
    EFI and SMC firmware updates for Intel-based Macs

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