10.4.8 and CoreDuoTemp

I upgraded my MacBook with 10.4.8 and I am noticing
that, most of the time, CoreDuoTemp is reporting that
CPU clock speed is 2Ghz. Prior to the upgrade, it was
mostly around 1.5Ghz unless I run CPU intensive
applications. Has anyone noticed that as well?
Regards
I just noticed this tonight myself. Mine used to hover between 1.33-1.5GHz most of the time. The computer seems snappier.
-Bmer
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Temperature monitoring utility - QUESTION

Has anyone else out there run both TempMonitor and CoreDuoTemp at the same time on an (Intel, duh) MacBook? The reason I ask is because I am, and I get drastically different readings from each. Like 64F versus 84F. The same disparity occurs when switching to Celcius units too.
Is there something about running both at the same time that can cuase one (or the other, or both) to not function properly?
Thanks in advance!

Has anyone else out there run both TempMonitor and
CoreDuoTemp at the same time on an (Intel, duh)
MacBook? The reason I ask is because I am, and I get
drastically different readings from each. Like 64F
versus 84F. The same disparity occurs when switching
to Celcius units too.
Is there something about running both at the same
time that can cuase one (or the other, or both) to
not function properly?
Thanks in advance!
make sure the refresh rates are both the same.

Macbook Pro Won't Run Past 1GHz Without Its Battery

Hello,
I've been using a Macbook Pro 2.16GHz for half a year. I just realized that the computer will never get beyond 1GHz, both in Windows and Mac OS (I checked with Sisoft, CPU-Z, and CoreDuoTemp) when I remove the battery and run on AC Adapter. However, when I pop the battery back in, MBP speeds up to normal speed. Is this regular? Thanks.

Hi palmbook,
Dont worry,this is the nature of Macbook Pros or Macbooks.When we are using our mac,the power consumption is not constant but fluctuates instead.At certain moments,the power consumption will go beyond what the AC adapter can supply...when this happens,the battery will have to provide extra power to cater those needs.
If the battery is not present at these moments,the system will simply shut down by itself to prevent any damage to the circuits and thus losing unsaved data.This is imperative for people who are performing rendering tasks as long hours of data processing will culminate to nothing in the event of such "moments".
To address this issue,the SMC(System Management Controller) will limit the usage of the CPU to 50% of its nominal speed if the battery is removed in order to prevent such "moments" from occuring.

Laptop pads/coolers recommendations

I use my laptop primarily on my lap (hense the term laptop) but with the macbook it gets a little toasty after a few hours of use.
I have not gotten up the nerve to reapply the thermal grease, void the warranty and based upon this link the results are questionable.
macdevcenter
(the link appears to be down check back later)
Anyways what solutions are available for keeping the laptop on some sort of pad/plastic platform that will sit on my lap.
I googled laptop coolers and came up with some but most are rather larget and well unwieldly especially when you consider this is for a 13" laptop.
I'm not sure what would work best but I'm thinking something that is based on convection may be a good idea, i'd rather not want to have fans, or lose a usb port.
If anyone has any recommendations please let me know.
Thanks in advance
Mini G5 PowerMac MacBook Mac SE Mac OS X (10.4.6)
Mini G5 PowerMac MacBook Mac SE Mac OS X (10.4.6)

Don't know if this helps but post below is what I did and am using. I had posted it on MBP forum. In a nutshell, I use Vantec Lapcool 4 (portable unit that gets powered either by AC or USB, and it fits in my bag nicely) and it keeps everything much cooler.
Also as an update, when I originally posted this note, the temperature reading was based on AC charger mag'd on. Untethered, the CoreDuoTemp stays much lower (~40c) most of the time and the case is cool to touch everywhere.
Since I have MBP (metal case vs plastic case), YMMV!
A Different Perspective on Heat Thing...
Posted: May 23, 2006 9:39 AM
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Just wanted to share my experience on MBP heat after all the latest firmware/sw updates, and using a cooler pad.
My MBP used to get pretty warm. I must say that it definetly was warmer than any of my 5 past laptops - though not much more than any of them at a given locally hot spot. In other words, all of my past laptops got just as warm on certain spots but not all over. On MBP, I find that in addition to the local hot spots, the heat propagates throughout the case, and over time, it gets quite warm.
Then it it occured to me that MBP is the first metal cased (Al) laptop I've owned. All the others have been plastic casing. Al conducts heat much more efficiently than polycarbonate.
Since I use MBP as my primary computer, it spends much of the time on a desk or conference table. That said, I was looking for a stand that raised the aft end of the MBP so that the keyboard is at much better angle to my hands. In doing so, I decided to get a stand that also acts as a cooling pad with couple of fans built into it.
What a difference. Heat is convected right out of the bottom of the MBP case and very little heat is transfered onto the upper surface. In fact the only place that gets slightly warm is where the HDD is and its a combination of both the disk working and my palm resting on it as I type.
So I am guessing that heat many people are experiencing is not so much of the CPU constantly running hot (I'm sure some are running hotter than others) but heat soak effect that occurs as the tempurature continues to build up over time.
I'm using Vantec Lapcool 4 and it works for me. Just for info, I've been on my MBP for almost 3 hours now and CoreDuoTemp readings have been between 40~60c, except few times that the CPU was under full load that spike the temperature up well past 70c but it is expected. The case is just above ambient room temperature.

Unreliable connection with tempsensor

Can this be the answer to why the MBP15" goes so hot? It looses connection with it´s´CPU temeraturesensor.
I´ve been running the reportapps Temperature Monitor and CoreDuoTemp for a week now and the connection to the CPU´s tempsensor is gone to and from. You can see that the apps works because the HD tempsensor is still reporting.

Hi. Two things:
1 - the dbms is sometimes unable to make all the connections it is asked for at runtime,
so some requests will fail in this way. Set the pool to have as many connections as
you think you'll need as it's initial capacity so the server makes all the connections at
startup.
2 - In your finally block, if the result set or statement close() throws an exception,
you'll skip the more important connection close(). I'd suggest:
finally
try
// By JDBC spec, if the connection is closed, all sub-objects
// are automatically also closed.
if ( conn != null ) { conn.close(); }
catch (SQLException ex)
{ // Catch All exceptions
ex.printStackTrace();
}//EO finally

Reinstall latest smc update - smcfancontrol made the fans kick in @ 100°C!!

Hello!
I have two questions:
1. How can I reinstall the latest smcfirmware update? OSX tells me its not necessary, thus it doesnt want to. But I want to. How can this be done? In terminal? How to?
2. SMCfancontrol (you know, the little proggie that lets you set the minimum speed of your fans), caused my fans to kick in waaay too late. I tried the yes > /dev/null/, and the fans kicked in at 100°C only. Thats wa too late, and surely not what should happen. I remember, the latest smc update just made the fans kick in even at 60-70°C.
I uninstalled the SMCfancontrol, made PR-Ram reset, and the SMC reset (Holding Start button for 10sek while without battery nor cable), Repaired the permissions.
Still, no luck. I know, my fans and the sensors work fine, as Ministat2 and Coreduotemp work just fine.
Whats wrong, what can I do?

1. How can I reinstall the latest smcfirmware update?
OSX tells me its not necessary, thus it doesnt want
to. But I want to. How can this be done? In terminal?
How to?
As far as I know, you can't. If you think the SMC firmware may be corrupt, you'll have to ask AppleCare.
2. SMCfancontrol (you know, the little proggie that
lets you set the minimum speed of your fans), caused
my fans to kick in waaay too late. I tried the yes >
/dev/null/, and the fans kicked in at 100°C only.
Thats wa too late, and surely not what should happen.
I remember, the latest smc update just made the fans
kick in even at 60-70°C.
SMCfancontrol doesn't affect when your fans kick in. Since the firmware update, the fans run all the time. SMCfancontrol simply tells them how fast to run with low load/temperature.
If your fans are off until 60C then there is a problem with your firmware. Call AppleCare. After the update, as I said, the fans should be running at 1500RPM at all times, increasing when system load or temperature goes up. I know mine hit 6000RPM when the system load hits 90% or the temperature hits 60C, whichever is first. The 'yes' test causes both cores to run at 100%, which means the fans should be maxed out pretty much straight away.
Whats wrong, what can I do?
Call AppleCare.

17" MacBook Pro Heat Issues

Hi everybody, I recently got a 17" MBP but have been having some issues with heat. I have been looking into the issue online on various message boards, have read extensively on the thermal paste idea (though have not opted to attempt this yet), etc. My serial number is W8621, so it is not a very early model afaik. I have been using the computer daily for good amounts of time, at first on my lap, but after that became unbearable, on a hard surface. I do have the SMC update. I hope I am not forgetting any important information.
Anyways, I have been struggling with the heat which I have recorded using Speedit and CoreDuoTemp to be between 65 and 75 degrees C idle and exactly 90 degrees load (using yes > /dev/null, I know some people argue over if this really stresses the system to the max, but for my purposes I think it shows my problem well enough). I have even recorded a peak temperature of 94 degrees C, or a scorching 201 degrees F. All of this translates to an untouchable case at various points including the bottom, the left side, and the keyboard (both the bottom near the space bar and the top near the F keys). I know these machines will and do run hot, but I think that mine is running especially hot and I am looking to ideas on what to do. Though I probably would have no issue redoing the thermal paste I would rather go through more official ways of fixing the problem. I did get Applecare with the computer so I have plenty of time to take it in, but I was wondering what if anything they could do, because last I have heard they don't really acknowledge the problem.
Anybody with similar issues want to share their experience and what they told Apple was the problem? I don't want to go into my Apple store only for them to tell me the paste is not an issue, or the heat is within spec, or that there is nothing they can do.
As if this wasn't enough, it seems that I have developed the 'whine' problem over the past day or two. I first heard about this problem a day or so after I got the MBP, but never noticed it or heard it even when trying to, so I thought I got by with a working one. However, over the past day I have noticed a high-pitched sound that varies in pitch slightly but is on almost all the time, with slight pauses ever 20 seconds or so. This occurs with the power cord plugged in, as it has been since I have got the machine. I have not had the computer unplugged for an extended period of time (over an hour) since I got it. I have not attempted any fixes, and honestly don't want to, but again if this is a decent reason for them to check it out I would appreciate any advice. It is gradually going from noticeable to annoying, and I am starting to get upset with my otherwise beautiful and perfectly working computer.
Thanks in advance for any help! If you need me to post anything else just let me know, I really want to take care of this before I take it to school in the fall.
17" MacBook Pro Mac OS X (10.4.6)

Maximum PC Magazine had an article about the MacBook Pro's heating problems in the May 06 issue. They basically said that after opening the case up, they noticed that Apple was applying a huge chunk of thermal paste between the CPU and the cooling element.
Applying too much thermal paste to the CPU is actually bad. It will act as an insulating barrier causing heat to build up rather than dissipate through the cooling element.
So after they scraped off the thermal paste gunk, they reapplied some Artic Silver (the best thermal paste on the market) to the CPU and noticed about a 10 degree Celcius decrease in temperature.
Apple's only official response to overheating has been that sometimes people forget to take off the packaging tape covering the vents.
http://www.neowin.net/index.php?act=view&id=33508
Anyway, food for thought....

Increasing battery life by reducing processor speed.

Is it possible for me to limit the amount of power that goes into the processor? i have tried using speedit and coreduotemp but i can't get them to work.
You see i mostly use my laptop to play music out loud whilst i'm at work, and i'm sure i could get a much better life out of it. I remember i got about 6 hours on my ibook g4 1ghz, and my macbook pro is 2.4ghz and getting 4 hours at most, and runs rather hot. i use the fancontrol system preference application to reduce the fan speed when i want more life and increase it when actually use it.
can anyone help me out?

Running Windows will completely disable any processor control and there are no fan control programs that operate in Windows and work with a Mac. That wouldn't be a feasible solution.
I'm not aware of Windows having a built-in mechanism allowing the user to reduce processor voltage. Windows does use processor stepping to reduce the clock speed under certain usage conditions, but so does OS X.

Recieved a hissing and whining MacBook Pro. Now what to do?

I recieved my week 17 MBP (15,4" - 1.83) last week, and have since been putting it through the paces. Unfortunately it does have some of the problems I've been reading about on this board. Here are the symptoms:
It has a intermittently hiss coming from behind the keyboard, this goes away when turning on the mirror widget. (This must be the CPU noise?)
It has a much louder high-pitched "whine" coming from the screen that becomes noticeable at around 70% screen brightness, and becomes very annoying with the brightness turned all the way up. (Inverter ?)
Temperature-wise I'm a bit puzzled. It does become kinda hot, especially on the "bar" behind the function keys, but The keyboard never comes near "too hot to touch". I've installed CoreDuoTemp and yesterday it was running at around 32-36C constantly. Today it's running at around 60-70C with the same CPU usage.
What do I do now? How do I proceed? And what would be the likely outcome of my actions?
Do I contact Apple, or am i better off just learning to live with the problems and waiting for a potential software fix.
Note: I've bought it through the Apple online store.
It is annoying spending this amount of money on something that seems to be flawed.

Cpu whine: you should get used to it or use work arounds or iTunes.
Screen buzz: it's fixable. Call Apple Care.
Temp: the .kext might not be stable yet, Cryptonome's still working on it. Or your sensors are not working properly (it's less likely though). And there's still no benchmark as to what's the "normal" range. Only thing we know is that Intel says that it's ok up to 100C. If doesn't shut down, should be ok.
Alternatively, and most probably, you can get a swap since you're under the famous 14 days.

MacBook Pro Battery and CPU behavior

I realized, when i do not have the abttery inside the macbook, what i do not fotne, to save chargecycles, that my cpu wil not go above 1ghz. i observed this with the use of the coreduotemp application, wich can be free downloaded and monitors temperature and cpu speed of your macbook. i wrote to the developper, and he confirms that observation, so it is not an software bug.
First, i invite you to test this on your macs and report, and secound i would like to have a solution, i bought this mac for power, not for slow power. maybe someone knows how to disabe this PMU behavior, thx

This is not true! I use CoreDuoTemp as well and I can get the full power of my CPU on batteries.

CPU frequency at idle and low load

I have a 1.83 GHz Macbook and it seems that my frequency is at 1500 Mhz most of the time according to the CoreDuoTemp whether I run the Macbook on AC or battery. Does it only go to max only when running processor intensive apps or should it stay at 1833 Mhz when idle? Thanks for the input.

Core duo should take about 10 to 15 seconds to read your temp, no longer.
I have the same problem on my 2.0 Ghz Macbook. I am always at 1500 I have never once gone below 1333 and even that was for just a few seconds once.
I am wondering if this is how Apple "fixed" at least to a small degree, the whine in these over that in the Pro's. I was hoping to find a program that would force the proc down for better batter life (such programs exist for PC's so I think the same should be possible for OSX)
Kalel

Mooing and heat fixes: what does each method do?

My black MacBook used to have both the whine & mooing + it was hot. (I started with a black MacBook with idle CoreDuoTemp of 66~69C.)
So I searched and searched and tried a LOT of things posted on this forum.
Now I actually understand WHAT these tricks do, so I thought I'd share my experiences AND ASK, "DOES ANYONE KNOW OF ANY BETTER/OTHER METHODS?"
1. Unplug the battery trick
Others have found that unplugging the battery causes the CPU to operate at 1Ghz, lowering the temp. However, the CPU will be stuck at 1Ghz even when you load it.
I finally found out what this does by using Apple's free developer tool Reggie SE. (Don't fool around with Reggie SE since it can kill your computer) For some reason I cannot understand, unplugging the battery trips the "Thermal trip indicator."
The exact words from Reggie SE when the battery is unpluged:
"Thermal trip indicator event is active. This indicates that the processor is above the recommended operating temperature. This bit is read-only and cleared once the temperature drops below recommended operating temperature".
Effectively, the CPU thinks that the temperature is unstable and automatically fixes your freq to 1Ghz.
So this fix is definitely a result of a bug from Apple. My best guess is that they didn't write the parameters inside the ACPI drivers to handle such an event since they don't expect users to run their MacBook minus the battery.
2. Delete the IOPlatformPluginFamily.kext trick
According to apple documentation, "The MacBook uses an advanced system management controller (SMC) to manage thermal and power conditions, while keeping the acoustic noise to a minimum. The SMC is fully independent of the operating system."
http://developer.apple.com/documentation/HardwareDrivers/Conceptual/MacBook0605/Articles/MacM42DeveloperNote.html#//appleref/doc/uid/TP40004263
So why does trashing a file (last time I checked, file-on-harddrive=software) change things? Because the CPU throttling is controlled by OSX.
Inside IOPlatformPluginFamily.kext, there is a section describing CPU throttling. It's a bunch of characters that I can't decipher, but what IS interesting is that it is the exact same setting for the Macbook, Macbook Pro, and the updated Macbook Pro.
When this file is trashed, some users (including myself) will notice that the "mooing" disappears. What actually happens is the CPU throttling is disabled, causing the CPU frequency to be fixed at 1.667Ghz. Normally, the CPU will throttle between 1.5Ghz and 2Ghz. The operating temperature INCREASES and the mooing disappears since mooing only occurs over a very narrow temperature range. This also gets rid of the CPU "whine," for reasons related to CPU throttling that I don't understand.
With this "fix," my CoreDuoTemp went from 66~69C to 71~73C. If you have a 1.83Ghz macbook, the numbers are probably different.
Anyway, we can probably agree that we'd rather get rid of the mooing by LOWERING the temperature rather than INCREASING it.
3. Removing the plastic piece covering the vent-fix
If there is a plastic cover on your vent, the solution is simple! But I think this is a minority event.
4. Reapplying thermal paste
I have not personally tried this method, although I agree that it should work. But it'll only work if Apple screwed up when they manufactured the MacBook, i.e. used inferior paste.
5. Re-seating the heat sink
This works the same way as #4 - by properly distributing the thermal paste and making a good thermal contact at the CPU/Heat sink interface.
http://discussions.apple.com/profile.jspa?userID=396441
Joe said that his seat sink was a bit "loose," and that he tightened the screws. Well I checked mine and the screws were fine.
So here's what I did:
1. Very slightly loosen the 4 screws holding the heatpipe in place (1 rotation)
2. VERY gently push down on the heat sink and wiggle it around in an effort to evenly spread out the thermal paste
3. tighten the screws.
That lowered my idle temp from 66~69C to 59~63C. Since my particular MacBook mooed at 66-69C, the mooing is now GONE! And now I have a cooler laptop!
6. Use less mem-persistance programs.
I noticed that running apps like little snitch and sizzling keys (or any kind of app that runs in the background) increases the temperature by a degree or two. This really isn't a fix though, since that's like saying "don't use your computer if you want to keep it cool."
7. Disable a core (use as single processor)
Well this isn't a very attractive options since I paid all that money to get a dual-core laptop!
What's worse, disabling a core doesn't decrease my temperature at all, even though I thought it should work. If anyone has evidence contrary it'll be interesting.
Well, does anyone have other ways to lower their MacBook temperature and/or get rid of mooing?

http://cnscenter.future.co.kr/resource/rsc-center/presentation/intel/spring2001/ epis102.pdf
This is the pdf from Intel Developers Forum, that descript what effects on the processor temperature. As you can see from the pp. 17-19, the surface flatness is the significant factor, so the other way of decreasing the temperature is to check if the cooler basement is flat and, if it's not, to polish it.

Serious Unarchive and Applescript Errors

I have run into a little problem.
After cleaning up some of my applications, something went weird and I can not unarchive a file using the OS BOMarchivehelper and several applications give me applescript errors.
When I try to unzip a file, I get this error:
Unable to unarchive: "CoreDuoTemp.zip" into "Downloads". (Error 32 - Broken Pipe.)
When I use another app to unzip the coreduo app, and attempt to run the app I get this error:
AppleScript Error
sh: line 1: top: command not found
sh: line 1: grep: command not found
sh: line 1: cut: command not found(127)
another app brings up:
sh: line 1: defaults: command not found(127)
I have googled these errors and nothing useful has come up. If anyone has any ideas as to how get these two portions of the OS to function properly (without reinstalling), I would greatly appreciate it.

There are at least 3 possibilities here as all those commands are in the /usr/bin/ folder with Mac OS X 10.5.1
1. You've deleted the /usr/bin folder or maybe just reset it's permissions.
2. You've deleted or munged the setup file (probably bash.rc or profile.rc) for the shell you're using so that it isn't setting the "path" variable correctly. Execute "echo $PATH" in terminal to show it. It should contain several colon separated posix paths and appear something like this -
/bin:/opt/local/bin:/opt/local/sbin:/sw/bin:/sw/sbin:/bin:/sbin:/usr/bin:/usr/sb in
3. If you are in single user mode, you haven't typed in the full path to the commands i.e. "/usr/bin/defaults"
Try "/usr/bin/whereis top" in your shell to see if it exists. If it doesn't return a path to the command or otherwise errors, you might want to re-install the Mac's OS as you may have a lot of stuff missing. If it does return a path then it's either item 2 or 3.
Note: As "whereis" is also located in /usr/bin it will not work if the folder is gone or damaged.

C2D temp and speed

Hi
I finally bought my macbook. A brand new C2D at 2.0ghz. My question is about two things. First of all, my temp is high 40 to mid 50 in light task (internet browsing, word etc.). But when I max out the cpu, the temp goes rapidly up to 80, fan go ful blast and stay there as long as the cpu is working hard (like ripping one of my dvd with handbrake). It seems high for a pc guy who nerver saw anything higher than 65 on is AMD desktop. Is it normal for a laptop to go that high ?
Second question, when trying to find answer for those temps, I’ve read that the intel chip is suppose to trothle down (up to 1.5ghz) when your doing something not to demanding. But coreduo temp shows that my cpu is almost always at 2.0ghz, even on idle. I’ve seen it going down but only for 2 or 3 seconds and than it goes back to 2.0.
Thanks for the answers, and, by the way, I really love that OS !!!

Both the MacBooks and the Pros run hotter than many expect because of the Core Duo CPUs. I believe that's still basically true with the Core 2 Duos. There may have been more complaints about the MBPs, one reason perhaps being that the MBP aluminum case feels hotter than the MB plastic case. And the fan management policy has evolved with SMC firmware updates.
It appears that CoreDuoTemp gives wonky CPU frequency readings with OS 10.4.8. I use Hardware Monitor, and it shows believable CPU stepping, mostly at the low end of the 1-2 GHz range.
My machine runs a bit cooler than the OP's, but I also would not think that the reported temperatures are cause for concern. At high CPU load, the fan does ramp up to max speed.

MB idling at 2.0 GHZ (CoreDuoTemp)

Is this normal? I have 3 applications open (Messenger, Itunes and Safari). 46 degree Celcius, 6.4% processing, current frequency is maxed at 2.0GHZ. My MB is just idling....the fan is humming, not loud. If I (right now) download a video on itunes, it'll roar like a hair dryer.
(it's been on for 2 days)

The CoreDuoTemp application is almost certainly wrong in reading 2 GHz constantly. (The error beginning with OS 10.4.8.) Hardware Monitor shows the CPU stepping with load between 1 and 2 GHz, mostly at the low end.
The Intel CPU runs quite hot. I have seen posts that Wintel manufacturers' notebooks with the same processor are noisier.

10.4.8 and CoreDuoTemp

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