10.4.7 == lower temperatures?!

My normal temp is now 57 from 66 C (135 from 150 F). Anyone else getting results like this? I hope this is a correct report. Temp still goes crazy under 100% cpu usage.
I also haven't heard a moo but then I've only been running the update an hour so I'm not counting my chickens on that.

I'm afraid mine still moos, even with the update. But I noticed that there was a SMC Firmware update for the 17" MacBookPro released at the same time, which is specifically designed to adjust the behaviour of the fans. Will we get one for the MacBook too I wonder?
iMac G5 Rev A Mac OS X (10.3.9) MacBook 2.0GHz Mac OS X (10.4.7)

Similar Messages

CPU Fan running really fast even at low temperature.

I bought a HP Envy 700-160eo desktop computer 5 or 6 months ago and for the last 2 months the CPU fan has been running really fast even at low temperature. It's like locked to about 2400RPM as soon as I boot up my PC. Even if I get 30 degrees celcius it runs at 2600RPM. I've tried resetting my CMOS and tried updating my BIOS, but the BIOS update that you are providing me on the HP Envy 700-160eo driver & update section isn't compatible with my PC. The update is for 700-0xx. I've been using the program called Argus Monitor for controlling my fan speed.

I've got the opposite problem, my AMD CPU is running around 55C and the fan hardly ever exceeds 1200 rpm most of the time its running around 950rpm. I think the 48C to 65C is running on the edge of to hot in my opinion, I like to stay around 35C-40C. Motherboard, video card and hard drive all stay in the 30C range. I tried to speed the fan up with SpeedFan program but it can not interface.
I hope someone can give us a answer, I checked the UEFI and could not find any setting allowing controlling fan speeds on my ENVY 700-200z/AMD A10 cpu.

HP G62 - b95EV Auto-Shutdown on very low Temperatures

My HP G62 - b95EV Auto-Shutdown on very low Temperatures like 60 degrees ... i tried everything, i system restored , i cleaned the fan ,i updated the BIOS etc. My OS is Windows 7 x64 my proscessor is Intel Core i5. Please help me , what should i do?

Hi, maybe you need to check if the heatsink is well seated on the CPU and chipset. Yet, this is not end user doable check-ups due to the complex procedures and skills required, please contact local call center to get the unit fixed. Thank you!
I am an HP employee.

I need to set high and low temperatures, which will set off a sound if passed.

I'm doing this on a DaqBook 2k0. I spilt the channels up and converted then into F. The readings are then shown on 15 bar graphs. I want to set this up on each channel (one at a time). I want to get the line of data (temp) for each channel on an High, low alarm. When the high or low is passed i want some kind of sound to be set off. I found that your samples used LabView hardware so they just linked into that.Using 3rd party i need to get the alarm to read the data, not device.
-Thank You

VinnyC,
You should be able to use parts of the LabVIEW example programs, but you will need to replace the NI-DAQ VIs with VIs provided to you by your 3rd party hardware manufacturer. Please contact them for their LabVIEW driver and examples of how to use it. If you need help with non-DAQ programming to send an alarm, please post again in the LabVIEW category. Hope this helps. Have a great day!

Reducing rpm on my fan gives lower temperature.

I had a little accident with my volcano9 and had to connect it to the main powersupply. Without any control it ran at full speed and made so much noise that I finally attached the rpm controller that followed with the volcano9. Strangely my cpu has actually gone from 62 to 58 celcius after reducing my fanspeed to an acceptable noise. I tried this several times and if I increase the fanspeed to full my cpu gets hotter.....this is very weird and I cant seem to find any explanation.
Besides the fact that my new volcano9 blew the fanpower on the motherboard I love my msi 6380...never had a single problem with it and it must be one of the best boards ever made.

I would also think that dynamics has something to do with it. While thermaltake has a good fan, they could have done better with the heatsink. All copper would have been a good start, to rival the thermalright heatsinks. I would think the issue is with the heatsink and not the fan as I use the same fan that comes with the volcano 9 (smart fan 2) at full speed and temps are lower than at medium speed. I use the thermalright ax7 heatsink.

SMC Update + Cool Pad = Very Very low temperature even on your lap

Hey everybody, the best solution for those that are bothered with the heat issue: buy a coolpad and download the snc update and voilà! Your macBook is cool and running perfectly!

I recently got my MacBook back from repair for the random shutdown problem (for which they replaced the heat sink and top case).
Before I started having the shutdown problem, I had bought a Targus Chill Mat, which has two fans which draw power from a USB port. I made some measurements with ("Ext Cooling On") and without ("Ext Cooling Off") the Chill Mat fans running.
Pre- Repair, Low Load, Ext Cooling On: 45 deg C / 113 deg F
Pre- Repair, Low Load, Ext Cooling Off: 58 deg C / 136 deg F
Pre- Repair, Max Load: Abnormal Shutdown at 85 deg C / 185 deg F
Post Repair, Low Load, Ext Cooling On: 43 deg C / 109 deg F
Post Repair, Low Load, Ext Cooling Off: 54 deg C / 129 deg F
Post Repair, Max Load: max 81 deg C / 178 deg F
After the SMC firmware update:
Post Repair, Low Load, Ext Cooling On: 43 deg C / 109 deg F
Post Repair, Low Load, Ext Cooling Off: 46 deg C / 115 deg F
Post Repair, Max Load: max 79 deg C / 174 deg F

Unusually Low Temperatures After BIOS Flash

Just flashed my K7N2G-ILSR from BIOS v1.2 to v1.4 & have noticed a drop of about 20C on my CPU temperature (I'm using Motherboard Monitor) & a drop of about 10C on the Northbridge (chassis temperature remains unchanged at about 35C). Is there a known issue with v1.4 misreporting CPU & Northbridge temperatures?
TIA,
B'Billy

gfilitti,
Apologies - I've just come back from holiday & so only read back a few pages.
Shame - I kind of liked having my CPU run at 26C :D

My phone keeps saying "Low temperature: unable to charge phone." What is this?

I just randomly started getting this. I can charge my phone for a little while but then the message comes up. I need to charge my phone but I don't know how and I don't know why the message is coming up. Has this happened to anyone else or can anyone help? The phone is only like 2 months old.

The phone senses the battery temp, and will force it to shutdown if the battery is too hot. Also I believe if the battery is too hot or too cold, it will prevent charging. I believe there is a small sensor located inside the battery that is interrogated by the phone. It would not make sense for the sensing to be done outside of the battery... but I could be wrong.
The LG G2 doesn't have a customer-replaceable battery. I think the Lucid might (if someone is being re-directed from that other post). One would have to check on the Lucid. I don't have that model phone.
If I had a phone where the battery was replaceable, I would try a new OEM battery. On phones like the LG G2... I would call LG technical support. It might be as simple as the ribbon cable to the battery assembly is loose on the G2, but it's also possible the sensor in the battery is bad, or the circuitry in the phone used to monitor the battery is bad. Likely the phone would have to be serviced...

2911 operating temperature

Hello I have to put a router at a tower site that only has a metal box on the side of it. With the fans the temp stays around 90. On the really hot days I have seen it get up to 105. The operating temperature of a 2911 is 32-104F. So my question is, is it safe to run it in this environment? And is the 32-104F ambient temperature or board temperature?

I don't know the exact temperature specifics only Creative have the "undocumented specs". But I can tell you that the internal Lithium battery would not be a problem but the LCD (Liquid Crystal Display) screen might pose a problem at very low temperatures 32 F/ 0 C (and below) because the liquid in the display could freeze/dis-color/turn dark as with any other LCD. The key is to keep the MP3 close to your body so 98.6 F. will keep the display warm and not freeze. Just put it in your shirt pocket and do not expose it to the elements!

Operating temperature of Z

Anyone knows the operating temperature of ZEN 2/4/8/6/32 gb? Cos I'm going to a cold country soon and was thinking of bringing my ZEN along.

I don't know the exact temperature specifics only Creative have the "undocumented specs". But I can tell you that the internal Lithium battery would not be a problem but the LCD (Liquid Crystal Display) screen might pose a problem at very low temperatures 32 F/ 0 C (and below) because the liquid in the display could freeze/dis-color/turn dark as with any other LCD. The key is to keep the MP3 close to your body so 98.6 F. will keep the display warm and not freeze. Just put it in your shirt pocket and do not expose it to the elements!

Temperature Rises with audio

Hi!
When you ear some music in your machine the temperature rises from 87F to 136F.
Some people refer this to iTunes but i tested with other audio software and is the same thing.
ex: Cog, VLC, etc...
Is this normal????? I know this processor can take high temperatures but in the past the Dual G5 burns up in two years of work and i don't want to buy another Mac Pro in two short years...
Gaming in BootCamp stresses a lot less the CPU temperature... odd don't you thing?
Regards

Hi!
Listen Music / Word type of thing / More than 10 Web Pages with Flash, video and pop up windows /
MP3 Decoding and Video Convert...
Tested in BootCamp:
Windows 7 Ultimate
Normal temperature is 107,6F (less in OSX) :))))
Gaming goes from 118,4F to 132,8F
The graphic card, in this case ATI 4870, goes more cooler in W7 around 149F ... in OSX goes around 158F
If this explanation is correct, from macrumors forum:
I asked someone I respect in the industry, whose apps I have used for a long time, including Hardware Monitor and others apps, what his opinion on this issue is. He's been my go-to man in the past for the final say or at least some really good insight. He is Dr. Marcel Bresink. http://www.bresink.com/info.html
He wrote,
"I would guess what you are experiencing is basically the combination of
Snow Leopard's advanced power saving techniques and Intel's Turbo Boost feature
which is present in all CPUs based on Core i7 technology.
If the total load on the system is low, Snow Leopard will first
* stop to schedule processes for the virtual Hyperthreading cores (cores 2, 4, 6, 8, 10, 12, 14, 16),
* stop to schedule processes for the secondary processor package (cores 9, 11, 13, 15),
* stop to schedule processes for the first processor package (cores 1, 3, 5, 7),
in this order.
When a processor core has nothing to do, the core, or the whole processor package,
respectively, will be powered down. A core without power will have a much lower
temperature than normal.
iTunes is an application which performs continuous real-time signal processing in
one thread of execution. If a system with Intel Core i7 processor detects the
situation "one core can be operated continuously, the other cores are idling",
it will activate Turbo Boost, which means it will overclock one core and
shut down the others. Overclocking will be done up to a degree where the
overall temperature of the processor package is still within acceptable limits.
The lower-than-average temperature readings during idle times, and the
higher-than-average readings during Turbo Boost result in the temperature
behavior you have observed when running iTunes on a system with low load.
The temperature readings themselves are uncritical. You bascially cannot overheat
an Intel procesor core, because it will automatically throttle its speed before
this could happen."
So I'm guessing that prior MPs to 09' were not Core i7, and Turbo Boost is not a feature prior to Nehalem either?
What's up in OSX?
Windows take a lot cooler... don't you think?
Regards

'14 -- 13" Macbook Pro Retina Temperature

Hey Guys,
I recently bought a 2014 13" Macbook Pro Retina base model [2.6 GHz i5, 8GB RAM, 128GB SSD] and I am having a temperature issue. When watching videos (Hulu/Youtube) at 480p the computer will reach temperatures of to 80-90 °C. Sometimes it will even reach about 99 °C to the point where I do not feel comfortable to keep playing the video. I am currently updated at the time [10.10.1] of this posting with also using the latest version of Google Chrome.
My brother has an ultrabook (windows) computer. I can't remember the model number of the Acer, but it has an intel 1.6 GHz i5-4200U, 8GB RAM, Raid 0 x2 128GB SSDs @ 2560 by 1600 pixels 13". His ultrabook (with a weaker/slower CPU and 4400 intel graphics [compared to the Iris 5100 in mine]) can handle 20+ tabs and watch a 480p video (Hulu/Youtube with Chrome) without going above 55-60 °C.
It seems with those numbers that my i5 should be able to downclock and keep a lower temperature then his Acer. It feels like the computer is just running too hot, either to a bad cooling system design or most likely due to a poorly applied thermal compound between the heatsink and CPU. I'm not 100% sure if my thoughts are founded true in the community and would love to hear your thoughts on this subject and to what action do I have to take to resolve this issue without opening the laptop up itself.
Thank you for your time,
-Fellow Mac User

Google Chrome is a resource hog and has a poor record of compatibility with OSX. Use Firefox, Opera or Safari instead and that will help woth your temperature problem.
the temperatures that you are reporting are not unusual for video on a MBP. If you are nervous about them, use a cooling pad. Note that there are sensors that will shut down the MBP before it commits Hari Kari due to overheating.
Ciao.

How do I turn off temperature alerts in Calendar

Since upgrading to Mavericks, my calendar on every day is displaying the high and low temperature for the city I live in (in fact 3 sets of temperature for the same day!) and also putting up alerts of same in the upper right hand corner of my iMac. I find this most distracting and stupid.
I can't seem to find anything about this in the Calendar help files! I want to turn it off.
Any suggestions would be apreciated.

further clarified, yes I move Mail App to DO NOT INCLUDE and the mail icon now appears in that list. Mail is set to Vibrate Only...thanks for trying

Continuous Crashes for high temperature (I guess)

hi everyone, first of all excuse me because my english may be not correct, i'm not english native.
since 5/6 months my Macbook Pro (2,66GHz, 15-inch, Mid 2010) had started to overheat, expecially while it use flash, and crash.
it never happened before so I guess is because of the heat that this process causes. the macbook still turned on but the screen goes black (and if an audio is on this starts to freeze at one point) so I have to force the turnoff.
i've tried to clean gently the fans but nothing happened.
my battery's health is now at 57.7% (1108 cycles) and I've read that also this can cause overheating..but i think that this can't lead to systematic crashes.
recently my computer stated to crash also at low temperature.
how can I check my system so I can discover where is the problem?
everytime that I have to force my computer off I get a report (and I always "send it to Apple") but I want to know how can I interpret this report!
is there any method I can use?
thank you so much!

thank you so much!
so it's not sure the problem lays in the processing, it can be also due to a physical/material issue (like the thermal paste)?
today i noticed in the Activity Monitor that during playback of videos on youtube a single Chrome process named Google Chrome Helper had been using like 99% and over of cpu, and it decreased when i stopped the video.
anyone knows if there is any way to understand the main cause of the crashes? maybe by interpreting the error report that i get after the reboot
reading info on the internet it seems it goes like:
flash player issue --> laborious processing --> overheating --> crash
but i want to be sure that the main cause is really flash player, and specially why this started almost all of a sudden
thanks a lot again for your support!

How to account for and set the temperature in testing

The problem is this: I'm setting up an airflow resistance test and I need to account for temperature and barometric pressure. However, I don't know how to setup LabVIEW to account for these variables.

Devont:
Actually this issue is a fairly complex problem in aerodynamics. I am
an aerospace engineer who has developed computer code for this very
purpose in a couple of wind tunnels. When you say you are setting up
an airflow "resistance" test, what physical (aerodynamic) properties
are you trying to measure? Tunnel flow velocity? Mass flow?
Aerodynamic properties on a test model? (lift and drag coefficients,
center of pressure, gross forces?)
If you are trying to measure air flow velocity through a wind tunnel
test section, then the next question is what type of sensor system are
you using to do this? A pitot-static probe? A hot wire anenometer?,
an LDV (doppler laser)? Each has different techniques for getting
back flow properties.
Also what kind of tunnel is this? Low speed subsonic (say less <100
M/s) Mid speed subsonic <0.6 Mach? Transonic 0.8 to 1.2 Mach?
Supersonic 1.2 to 4.0 Mach? Hypersonic (say >4.0 Mach?) This will
make a great deal of difference in computing flow properties.
Mach number is a ratio of the flow velocity to the local speed of
sound where;
M=v/a where a is the speed of sound.
a=(gamma*r*t)^0.5
where gamma is the ratio of specific heats Cp/Cv, r is the gas
constant, and t is the absolute temperature. Gamma is a constant up to
about mach 4 but really starts to fall apart after that so this speed
of sound equation becomes a lot less useful for hypersonic analysis.
At low speeds gamma for air is approximately 1.4, r is about 287 for
air. At STP, the speed of sound is about 340 meters/second.
What is the scale of your tunnel? What is the density altitude of
your tunnel? What is the fluid medium in your tunnel? (Is it regular
air or something else?) These play into computing flow properties
because they affect a dimensionless flow property called the Reynolds
number which affects how the flow in the tunnel behaves.
You will need to consider also humidity which affects the density of
the fluid medium in your tunnel. Water vapor has a molecular weight
of 18. Dry air (0% RH) has a molecular weight of about 28.9. The
more water vapor you have, the lighter the sample volume of "air" will
be. The ability of air to retain water vapor is a function of
temperature, so a relative humidity of 100% at 0 degrees C will
contain much less water vapor than a relative humidity of 20% at 30
degrees C.
Because of something called the "boundary layer" the velocity profile
will be faster in the center of your tunnel than at the walls. It
will resemble something like a U shape for higher Reynolds numbers and
for very low Reynolds numbers may look more like a parabola. Reynolds
number is computed by:
Re=rho*V*L/mu
where rho is the air density, V is the flow velocity, and mu is a
property called the kinematic viscosity which is a function of
temperature.
The Reynolds number, like the Mach number, the Nusselt number, and a
few other fluid dynamics properties is a dimensionless ratio. Flows
with a similar dimensionless property should behave more or less the
same. This is called similitude.
Mass flow calculations first require that you know the air speed
profile of your tunnel and then you will need to compute the density
of the air in the tunnel and then perform an integration process to
calculate the actual mass flow through a particular plane of interest
in the tunnel.
Also, even when you put a test probe into the tunnel to measure the
flow in the tunnel, this will interfere with the free flow to a
certain of the tunnel. To minimize this, the test probes have to be
carefully designed and their size needs to be much smaller than the
overall tunnel dimensions. Later when you put a test model in the
tunnel, it and it's mounting system will also have an interference
effect on the tunnel that has to be accounted for.
To give a simple (perhaps an overly simple) answer to your question,
temperature and barometric pressure will play into your problems of
computing forces in that they affect the density of the fluid medium
in your tunnel via the unified gas law (which is a combined expression
of Charles and Boyles laws for perfect gases):
PV=nRT
or
Pv=rT
where rho, the density is the inverse of v, so this is sometimes
written as:
P/rho=rT
This only applies for perfect gases though. A perfect gas is one
where the constant pressure and constant volume specific heats (Cv,
and Cp) are fixed. The hotter and more dense the fluid medium, the
less true these equations become.
Temperature in these equations doesn't mean the common ways that we
ordinarily talk about temperature when cooking or talking about the
weather. Instead of C or F, temperature in the gas law must be on an
absolute scale such as Kelvin or Rankin. 0 degrees Kelvin or
Rankine=-273.15 degrees C or -459.67 degrees F. One Kelvin degree=1.8
Rankine degrees but both start at the same point of absolute zero.
For standard atmospheric conditions (called STP for standard
temperature and pressure), 1 cubic meter of air weighs about 1.226 kg.
You have to calculate the density of air at non standard conditions
by solving algebraically for the above gas law equation.
r is called the gas constant and can be derived from the universal gas
constant R (8314 units I can't remember of the top of my head but it
involves kJ/kg.mole or something like) by deviding by the molecular
weight of the gas in question. If the gas is a mixture then you will
have to apply the partial pressures rule to come up with an averaged
molecular weight of the mixture. Dry air contains mostly nitrogen
which has an atomic weight of 28 (about 79%), and then oxygen (about
20%) which has an atomic weight of 32, and the balance (about 1%)of
inert gases (Helium, argon, krypton, etc.) which have much smaller
atomic weights. For dry air r (small r that is) is about 287.
If the air is not dry, then you have to account for the water vapor in
the air by figuring out what partial pressure of water vapor is in the
air and then performing an average between the water vapor portion and
the other components of the air. Wator vapor only has a molecular
weight of 18 (1 Oxygen + 2 Hydrogens=18) and so is lighter than dry
air and tends to make the air less dense.
The partial pressure of water vapor that can be supported in the air
is a function of temperature that more or less grows exponentially
with temperature. I'm sure if you search the web you can find several
empirical equations for this. Relative Humidity (RH) is an expression
of how much water vapor is in an air sample versus the maximum that
can be supported at the current temperature of the air sample but what
you really want is the partial pressure of water vapor in the air.
There are sensors that can give this to you by measuring the
electrical conductivity of the air. Dry air is actually a very good
insulator, whereas water vapor decreases the insulating property of
the air.
All other things remaining equal, increasing the humidity will
decrease the density of the air.
All other things remaining equal, increasing the temperature will
result in decreasing density while decreasing temperature will result
in increasing density. If the temperature in your tunnel is different
than standard then you will need to account for this.
Tunnels generally heat up the air by the way when they accelerate the
air through the fan and also through boundary layer friction with the
tunnel walls. Many tunnels actually have heat exchangers to keep the
air from getting too hot. You will need to make sure you measure the
temperature at the same point thats you are measuring the static and
stagnation pressures in your your tunnel so that you can account for
its effects. Standard temperature is 15 degrees C or 59 degrees F.
For conversion purposes, 15 degrees Celsius =288.15 degrees Kelvin= 59
degrees Fahrenheit=518.6 degrees Rankine.
All other things remaining equal, increasing pressure will result in
increasing density, while decreasing pressure will result in
decreasing density. Barometric pressure is usually given by the
weather service as inches or millimeters of mercury or sometimes
millibars. For conversion purposes, 29.92
inHg=760mmHg=1000millibars=14.7 psi= 101325 Pascals pressure. If the
pressure in your tunnel is different than standard then you will need
to account for this.
Depending on tunnel velocity, you will also have to consider
stagnation versus static properties. Stagnation properties are what
you measure if you bring the flow at a point to a complete stop, i.e.
the kinetic (as opposed to random thermal) energy in the sample is
completely converted thermal energy. How you do this depends on what
speed of sample you are trying to measure and is the subject of whole
books. Suffice it to say that at low speeds there is little
difference between stagnation and static properties but the faster you
go, the less resemblance they bear to one another.
Compressibility is another issue. At low speeds air is
incompressible, but at higher speeds v>100m/sec, compressibility
becomes worth accounting for in your measurments.
At higher temperatures and velocities, (high supersonic, or
hypersonic, or high temperature >500 degrees C), the constant pressure
and constant volume (Cp and Cv) specific heat assumptions break down
and so does the gas law. The simplifications that can be made for
using the ratio of Cp/Cv (called gamma) also break down because Cp and
Cv and therefore gamma all stop being constants. Solving flow
problems in this regime becomes much more complex requiring numerical
models for Cp and Cv and requiring numerical (as opposed to simple
analytical) methods to compute flow properties.
Once you know the flow density, you can calculate air speed. For
lower speed low temperature tunnels (low subsonic) you can use a
simple incompressible Bernoulli equation for converting pitot-static
pressure to air speed. At higher speeds and temperatures this depends
on the regime (transonic, supersonic, hypersonic, etc.)
The Bernoulli equation is simply:
Pstagnation=Pstatic+1/2 rho * velocity^2
For lower speed supersonic, the isentropic gas relations are sometimes
used.
In any event, you have to be sure to get your units right. If you use
metric, pressure is Pascals (Newtons/m^2), rho is kg/m^3 and velocity
is meters/sec. It's harder in U.S/U.K units because of conversions
between slugs and pounds etc.
Also you have to consider the concept that there will be a steady
state average that you will measure and a transient/turbulent portion
that will occur for each parameter that you measure (temperature,
pressure, RH, etc.) that you will need to account for.
Once you know the air speed and the density, you can compute their
product - mass flow. Mass flow then can be used for other purposes
such as calculating performance properties if you are testing a jet
engine or propeller or something.
Hot wire anenometers work by heating a wire and measuring the
resistance of the wire. The faster the air flow past the wire
filament, the more it will cool. I don't remember the equations off
of the top of my head but I believe that there is a square rule
involved. Hot wires work better at lower speeds than pitot-static
sensors but both become less effective the slower you go.
LDV's are neat, high tech toys that I haven't had a chance to work
with yet but they measure the airspeed by measuring the doppler shift
in the light emitted by a laser beam going through the flow, much like
doppler (WX-88) weather radar works. They actually measure the speed
of the air more directly than the pitot-static or hot wire methods are
probably simpler to implement from an equations point of view but they
are very very expensive.
In conclusion, I know I have written a lot of stuff up here that
probably sounds pretty intimidating with regards to solving your
problem. It would help to eliminate some of this by telling us more
about your test problem so that we can make the appropriate
simplifying assumptions. Tell us more about the details.
Douglas De Clue
LabVIEW developer (and degreed Georgia Tech aerospace engineer)
[email protected]
Devont wrote in message news:<50650000000800000025530000-1027480788000@exchange.ni.com>...
> The problem is this: I'm setting up an airflow resistance test and I
> need to account for temperature and barometric pressure. However, I
> don't know how to setup LabVIEW to account for these variables.

10.4.7 == lower temperatures?!

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