MacBook :: Finding Maximum CPU Temp - How Many Fans Necessary
Jul 24, 2009
I have a fan utility that lists 2 fans. The "Left" fan is at 6204 rpm's, temp 81.4C The "Right" fan shows 0rpm's, temp -1C. Is this merely because the sensor is capable of recording two fan speeds or do I really have one malfunctioning fan? (which would explain the high cpu temp, if it applies).
A third sensor, a widget, records the same temp, with Heatsink A 70C and Heatsink B 64C. I realize all three sensors are getting their readings from the same spot; which one do I rely on?
using Ichat the other day running a full screen chat, and I saw the temp of the CPU rise to about 65C and the fans started spinning up 6200.... That was understandable as the CPU was under load... but after I closed the ichat down, the CPU temp dropped down to about 50C but the fans stayed at 6200 for a long period of time. probably about 10 minutes or so... then they slowly crepted down to 2500.
So I know there are a few other discussions regarding this subject but none of them are providing me with the info I'm looking for. I am looking to get a few responses on other MacBook Unibody's (Pros welcome too) temperatures when running intense programs (games, video conversion, etc.).
So here's why I am concerned. When running VisualHub in particular, my fans and temp go up absurdly. According to iStat, my fans are over 6000 rpm and my CPU temp hit 92c the other day. I shut it down bc I was having visions of my MB melting in front of me. I have even gone as far as propping up the back to allow for more air flow but that hasn't made any difference as long as I use pretty much any video conversion apps. Games (like Spore) make it hot, but not like this
I can find links to the previous MacBooks temps (which I had and this was never a problem) but nothing on the Unibody's. So please everyone, do share. Please include what apps you were running or if your MB's ever shut down from overheating.
I'm nervous to install the Firmware update 1.3. As I've heard from a lot of people the update has crashed their mac. I know it has to do with the fans and temp. My Mac book pro is running at 135 F at 2000rpm is this ok? Is it too overheated. Should I install the firmware I'm so nervous to install it just in case it breaks. Here's the rest of my specs...
Model Name:MacBook Pro Model Identifier:MacBookPro3,1 Processor Name:Intel Core 2 Duo Processor Speed:2.2 GHz Number Of Processors:1 Total Number Of Cores:2
I only started noticing my fan running a bit on the fast side this evening after installing the new Safari 4.0.5 update. I looked at iStat Menus for temp and CPU. And I was seeing about 190 degrees F for CPU temp with lid closed running ext display. Also there was a constant usage of the cpu (about 30% User and 20% System). There's not one particular process I can see in Activity Monitor that acting out of the ordinary and using a lot of CPU. Just stuff like coreservicesd, WindowServer, launchd that are shuffling around and using about 1-4% of CPU.I ran repair disk permissions and verify disk. Verify Disk found errors and said I need to repair my Macintosh HD, which I have now done successfully.
I have a 2007 Intel 24" iMac (Last of the white plastic editions) and I've recently had troubles with the 7600GT Graphics card. The computer would get strange artifacts all over the screen, before crashing. Unfortunately, it is out of Applecare, so I took it into a shop and had the card replaced. Upon receiving it back, they told me that they replaced the graphics card, but still found problems with it booting up inconsistently. After some testing, they realised it was the Hard Drive controller at fault, and put my harddrive in an external USB enclosure and booted it off that instead. This was an easier solution than replacing the entire logic board, they told me. (and they gave me the enclosure for free).
Now I've brought it home, and set it all up, only to find that the HDD fans are constantly spinning at 5600 RPM, which is deafeningly loud, even so over my room fan. I presume this is because there is no longer any hard drive controller/hard drive in there. I've installed SMC Fan Control, but to my dismay you can only set the minimum fan speed, and not the max. If possible, i'd like to set the max fan speed at a much lower rate, without needing to open up the iMac. So my questions are: Is there a way I can set the max fanspeed for the HDD, or disable it since there isn't one in there anyway? And is there a better solution for booting my iMac OS onto an external HDD? (i.e. Should I look into buying a firewire 800 drive enclosure instead of this USB 2.0 one?)
I've recently installed a Crucial M500 512 GB SSD into my 21.5" 2011 iMac. I've done this to quite a few iMacs, and am well aware that some have a temperature sensor on the factory-installed hard drive. This one, however, did not, and now that the SSD is installed, I'm getting constantly running fans.
The fans run whether it's booted from the internal SSD, an external FireWire HD, or even if it's sitting in Target Disk Mode or on the Boot Options screen, so I feel like it's hardware-related.
I was considering picking up this stand for my uMBP:
One thing that concerned me was having higher CPU temps with the lid closed.
I read a thread a few days ago that said there is no CPU temp change between lid closed and lid opened. And after doing some of my own testing I now believe that information is FALSE.
I use smcFanControl to control fan speed and monitor CPU temp.
Before using smcFantControl to boost my fan speed to constantly run at 3,400RPM, my CPU temp was 10-20 degrees (celsius) higher, on average.
I downloaded a program to monitor my late 2008 unibody Macbook Pro's temperatures. Just a few minutes ago while playing music/playing an ONLINE game real briefly it warned me that my CPU temperature was too high. (167˚ F) Is that too high of a temperature? What should the "range" be?
I was wondering what the 'normal' operating temp for the hard drive in an emac is supposed to be. According to iStat, the hdd in mine is currently running at 77 degrees C. It has only been on for about an hour and a half. I'm pretty sure no hard drive should operate at this temp.
I have a MacBookPro5,4 2.53GHz with one fan and only the 9400M. After updating to 10.6.3 the operating temperature seems to have risen from about 43 degrees C to about 48. It has been getting warmer here in Japan so the ambient temperature is different but I still think this rise in temp. is due to the update. I have smcfancontrol installed and set to 2500rpm instead of the normal 2000, but it seems to be not enough to keep the temp. under control, as it did before the update. Any relatively hard use of the cpu and the temp goes up to 60 degrees.
I was just adding some Quicklook plugins when my temps started to soar. I have restarted, repaired permissions, removed said plugins, and tried other accounts. Nothing is lowering the temps. Weird thing is is Activity Monitor is showing NOTHING using the processor nearly enough to jump my temps to 85 C with nothing running.
I'm "controlling" the issue for now by ramping my fans to full speed. Even with this I am hovering around 70 C...a good 10-15 C above what I am normally at (and was at 30 minutes ago). *Note: Normally running fans at 6000rpm would give me temps in the mid to low 40 C range
the other day i wake up and open my macbook pro and immediately heard the fan making noises ive never heard it make before. i checked istat pro. the fans were going at 2000rpm. this is when i started to get concerned since i would never hear the fans at that speed before. the difference was day and night. it sounds like the one or both of the fans are hitting something. i always hear the noise when i start up or wake up from sleep and after a while (30 minutes to an hour) it usually goes away but has come back once without me turning off or putting the computer to sleep. its a refurbished less than a little more than a month ago. im hoping its just some dirt that made it through keyboard and will eventually go away because i dont want to send my machine in to get manhandled by apple repair. has anyone had something like this happen before?
I guess this is one of the early MacBook Pros, model "MacBook Pro 1,1" It's two RAM slots originally could handle 1GB DDR2. Is that still the maximum, or are there 2GB chips for those slots available today?
Hardware Overview: Model Name: MacBook Pro Model Identifier: MacBookPro1,1 Processor Name: Intel Core Duo
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Info: MacBook Pro A1150, Mac OS X (10.5.8), 2 GB Ram, using FCE 4
I just started using the aluminum MBP 15" and used to have 13 Macbook aluminum. and as far as i can tell the 13" did not get as hot as my 15" I just installed a fan and temp controller and even with running the fan higher then default os 10.6 temps reached 165 F I freaked out and cranked up the fan to 5000 RPM and temps dropped so far. So, How hot are these MBP supposed to get until it no longer safe?? And its not even close to being where the MBP is: sitting in my office on a desk where its cold and i have to drink tea to stay warm.
im running at cpu temp of 82C with my fan running around 2000 rpm with the mbp in my sig. Is this a normal temp to fan rpm ratio? Why is bothers me is that im use to my Mb flaring up its fans every time it got hot.
I have a Macbook Pro Mid-2009 2.26GHz (10.7.4), and have 4GB RAM (2x2 cards), and at the time I changed it, not long after getting it, I am 99% sure it was only possible to get 4GB, but now Crucial is saying it is possible to get 8GB. I would have just got the max RAM possible, so was wondering if something has changed, (an update or something?) that has made it able to put more RAM in. Or, am I just mistaken completely and it was always 8 and I just missed it!
Info: MacBook Pro, Mac OS X (10.7.4), 2.26GHz Mid 2009, 4GB RAM
I have a 15in Late 2008, MBP (the first generation of Unibody) with 2.53Ghz (upgraded CPU speed) with 4GB of RAM. Will my laptop recognize 8GB of RAM and which RAM from Newegg should I get?
What is your heat sink temp when the cpu is running hot, like 90+ degree C?
I recently performed the excess thermal compound removal procedure. Now I am worried that my cpu and heat sink are not in 100% contact, due to the very small amount of paste applied.
My heat sink sits at around 50C under normal load (cpu temp ~ 60). But at high load, cpu up at 90+ C, my heat sink is still at around 50-60C. Is this normal?
What is the best way to completely erase everything on the computer so that it is not in the RAM or temporary memory anymore? I was looking at bikini models and I was redirected to another porn site. It popped up a bunch of other sites too. I would like to get rid of this and start over with this computer.
I am running a 2 GHz core 2 duo with the GMA 950 integrated graphics and am looking at getting a screen with a max res of 1920 x 1200. I mostly run in closed clamshell mode so it would only be driving one display. Can I do this?
How Come When I Start Using iTunes the temp of my CPU goes from 45C to 71C This only happens when I run iTunes I use SMC Fan Control its at 3500 RPM when I'm off the charger and when I'm on, 4500 RPM
And what is the average temperatures for a macbook pro (in celsius)
Whats the max memory I can fit in my black MacBook?
Model Name: MacBook Model Identifier: MacBook 2,1 Processor Name: Intel Core 2 Duo Processor Speed: 2 GHz Number Of Processors: 1 Total Number of Cores: 2 L2 Cache: 4 MB Memory: 1 GB Bus Speed: 667 MHz Boot ROM Version: MB21.00A5.B07 SMC Version (system): 1.13f3
Whenever I run a flash video, according to my istats program, the CPU temp is between 65c to 67c. Is this normal? I never noticed this high temp on my previous 2.4 umbp. There are other sites that have flash video that makes it go up to 80-85c.
