GT735 fan speed stuck at 30% under XP SP3 - crashes in games

Good day.
XP SP3 appears to not let the fan speed be adjusted according to the thermals, leading to overheating and BSODs pointing to
driver deadlocks in ati2dvag in graphically-intensive games.
Even such an old game as Deus Ex crashed once, whereas things like warcraft 3 tft, even on minimal settings, crash after about 10 minutes of gaming.
Neither the fan noise, nor GPU-Z readings (it has a file logging facility) indicate fan speed variation.
Latest, hacked up (for M88 support) ATI desktop drivers didn't change the situation.
Neither there appear to be any utility for manual fan speed adjustment for the SB700 southbridge -- the AMD's own
Overdrive utility is useless in this regard. Other things tried were: SpeedFan, CPUCool, the Linux kernel and Linux's standalone lm-sensors.
Update: it was ati2dvag, not ATI2Diag.exe

Quote from: Bas on 05-February-09, 18:02:55
This is not a desktop machine, you should let the laptop control the speeds of the fan.
And you also should use the MSI drivers as they are adjusted to the machine.
What on earth are you trying to do? Game and make the laptop silent?
I wish the laptop controlled the speed of the fan, but it doesn't -- which is the entire issue.

Similar Messages

HT1338 MBP gets heated upto 70 celcius, but fan speed stuck at 2000rpm

Service center person didn't found any fault.
What to do

In my opinion, 2000 rpm at 70ºC are normal. Moreover, I don't recommend fan speeds higher than 2000 rpm to prevent future hardware problems.
Anyway, you can check yourself if there's a problem with the fan. To do it, run Apple Hardware Test > http://support.apple.com/kb/ht1509 To run it, connect your computer to the charger and follow the steps of the link in order to run Apple Hardware Test. Then, choose your language, tick the option to run an extended test and start the test.
If, at the end, you see an error, copy it here. If not, your computer is working properly

SOLVED: GTX 770 Fan Speed Stuck at Full

Ever since I set up my GTX 770 in my computer, the fan speed appears to be set on full constantly. I have tried to use MSI Afterburner to solve the problem, but to no avail as adjusting the fan speed curve in Afterburner seems to do nothing. As soon as it boots, the fans ramp up to what sounds like max and stay like that. I was wondering if there was anyone else with this problem and if I can fix it.
Thanks in advance,
muddyducky
EDIT: Turns out it was actually every other fan in my computer running at 4000rpm that caused it - managed to turn it down in MSI Control Centre :P

Do you still have a question/problem?

MSI 8800GT OC 512mb fan speed stuck

Hello Everybody,
i've this exact same problem, my 8800GT always stay at the same speed, even in 3D mode.
I've serveral OSes, because im a developer and i've to test applications i do, the temperature reaches 90 degrees easily, is there a bios upgrade for the card ?
my system is:
Intel Q6600
Asus P5K-E-WiFi
4GB Ram
Windows XP/Vista 32/Vista 64
MSI 8800GT OC

90C underload is not critical.
Do you have any stability troubles?
Can you provide screenshot from GPU-Z? ==> http://www.techpowerup.com/downloads/SysInfo/GPU-Z/

Bios not reading fan speed

With my new arctic cooler copper silent 2tc install the bios doesn't read the fan speed until the system under load.
When it's under load the system seems ok but when I and just doing a bit of web surfing I'm getting BSOD's (processor.sys error) and freezing.
is this related to the fan speed not being detected can this cause problems?

Quote
Originally posted by Wonkanoby
Rated Fan Speed: 1400 - 2800 RPM
Power Consumption: 12 V, 0.18 Amp.
Air Flow: 14-36 CFM
Weight: 395 g
Noise Level: 12 - 24 dB
Thermal Resistance: 0.29 °C / Watt
many motherboard have a problem detecting a fan spinning under 2000 rpm
sounds like its letting it get to hot at idle
what are your temps
when it goes wrong it's normally in the 30's and then I reboot and watch it in bios stays high 30's or early 40's
when running prime in heat mode it's never got above 54c which was just peak not a constant.
When I was running prime in heat mode the system seemed quite stable and fan was showing around 1600 - 1800 rpm

Fan speed, memory/core clock & micro stuttering issues on Twin F. II 5850 Xfire

1st: I checked „synchronize settings for similar card“, but my second card won’t take the custom fan speed profile. It just stays at about 50% fan speed in idle.
2nd: After I played a game, the 2nd cards core/memory clock stays at 725/1000MHz when back in idle, and sometimes both cards get stuck at 99% GPU use.
3rd: When playing Just Cause 2 or Bioshock 2 I get micro stutters with Xfire enabled. Without Xfire (playing on one card) and same settings, no micro stuttering.
System:
CPU: AMD Phenom II X6 1090T BE
MB + SOUND: Asus Crosshair IV Formula, AMD 890FX
GC: MSI 5850 Twin Frozer II Xfire
RAM: ADATA XPG Gaming v2.0 2x4GB Kit, DDR3-1600
SSD: Vertex 2
LCD RES: 1900 x 1200
Best,
T

have you tried to remove current VGA drivers with >>Driver Sweeper<< in "Safe Mode",
then to install latest drivers from amd?

Re: helix CPU speed stuck at low clock speed

Admin edit - Reorganizing this thread slightly as we are actively investigating the symptoms being discussed here. Several different low end clock speeds of 600-800mhz are being reported capped under a variety of circumstances - sometimes cold boot, sometimes after suspend / resume or dock / undock
motku wrote:
Same here (helix ci7), after suspend and wakeup when CPU slows down ist get stuck at 750MHz and dose not recover untill reboot.
Before the BIOS update I could unplug the AC adapter and work with full speed on battery.
I have the exact same issue. It is quite annoying.
Solved!
Go to Solution.

Mark, theres more.
I found a "pseudo workaround" of this problem and hope this could lead to the real workaround.
What helped - installing win7, lenovo power manager, change power plan to other and change back to previous)
I tried to do some research and what i found:
In normal Lenovo power manager wheres 2 options in power plan:
System perfomance (Maximum turbo, Turbo, Balanced, Low) (lets call it PERF) and Optimise fan control to (Maximize perfomance, Balance all parameters) (lets call it FCNTL.
In theory FCNTL must control only fans, like table of data cpu temperature/fan speed. But in reality it affects CPU speed.
Only way to make PC always select speed from lowest to highest is to set PERF=Maximum turbo or Turbo, FCNTL=Maximize perfomance.
Lets go through options how they really works in practice:
PERF
Maximum turbo and Turbo are equal, means highest speed for CPU with turbo boost. The level of turbo bust is always maximum, Turbo didnt mean "slow turbo boost".
Low - cpu always at lowest speed 800mhz - thats ok.
Balanced - this option works a little crazy. In some situations it means "maximum cpu till 63C", in some situations it means "lowest speed, temperature doesnt matter. Why is it working in different ways but in same settings i dont know.
In theory Balance is something like "from lowest cpu speed till normal cpu speed, no turbo boost", but it doesnt work like that at all.
FCNTL
Maximize perfomance - in theory it must be "try to keep CPU on lowest temp when high load"
In practice its like "Balanced in PERF" - logic is unknown.
Balanced - the same, logic is unknown.
Unknown really means, that when i, for example, setup PERF=Maximum turbo or turbo and FCNTL to Balanced, sometimes it works in full speed and sometimes not.
Maybe there is logic, but it tottaly unknown to users.
The bad thing is that theres no way i can set mode "always run cpu from lowest speed till highest speed without turbo boost, 800-1800mhz".
By the way, there is some error in Lenovo power manager - when i change options in power plan and click "apply", sometimes they a apply, and sometimes not. If not, i need to select other power plan, and then select the needed one back.
Now about how this all can happend. I'm not shure that i'm right, but logically it is:
In Lenovo power manager theres option called "Optimise fan control to". And, there is NO such option in real windows power plan, so, it can be only changed through Lenovo power manager. As i see, this option affects maximum cpu speed. So, lets say, if this option is "damaged" some way, theres no way it can be fixed in windows 8, because Lenovo power manager for windows 8 has too few options, and native windows power plan editor doesnt have this option at all. So, when i done "something" in Lenovo power manager for windows 8, it changed that setting and all ruined.
Sorry for my bad english once more, hope you can understand what am i trying to say. Looks like we have 1) an error in power manager for win8 and 2) incorrect power option logic, or "specific" logic without a manual.
The strange thing, that in BIOS we have this options too. But changes in BIOS doesnt affect this at all.
P.S. by the way, when i got my helix, dock battery was having "wear level" = 1%. Now, after 6 days (battery info 5 cycles) it has "wear level" = 2%. Is it normal, or battery is bad?

Dc5850 cpu fan speeds to top speed sys then shutdown

I have a Hewlett-Packard HP Compaq dc5850 Micro tower PC, now running windows 7 pro 64-bit. That was new in late 2008. Originally it came with vista 32-bit downgrade able to XP pro 32 bit, running on 2G RAM, and 160G C drive with a 2.30 gigahertz AMD Phenom 8600B Triple-Core processor. It also has ATI 3100 integrated graphics as well as integrated NIC at 1G and integrated High def audio. In the first few months I had the system, I upgraded memory by 4G and total Disc space by 500G by adding a D drive; then upgraded to windows 7 pro 64-bit.
Overall, I have had a good experience with the PC but it has had problems while in its 3-year warranty. I did need to replace the C drive and later it original RAM devices. Yes HP did these replacements and swaps, under warranty; that meant I had 6G memory for a long time before the HP 2Gig failed out of warranty, leaving me with 4Gig now. Yes I have always had the Unit on an UPS; I even replaced the old UPS with a more powerful unit in late 2009 or early 2010 when the old UPS showed signs of failure. Now instead of serial based UPS connection it is USB.
Over the last few months I have been getting blue-screen errors of all sorts. Ranging from video related errors, Memory faults, Disc read/write failures and processor flag errors too. After numerous repair disc runs or re-install of windows, the disc read write errors wore corrected by the HP drive sanitation utility disc repair/wipe after failing the extended test. The non video ram was tested by a bootable CD of memtest86 v4 running extended test as well as MS memory Diagnostic. Both run multiple times, both passed multiple times. I was able to find a CD based video diagnostic for ATI and the Video passed repeated stress test as well. Over Labor Day I conducted these test and re-installed windows 64-bit; on the following Monday windows informed me I needed to activate windows, so I verified the correct key and called to do so, successfully.
With that background given here is the question. Recently over the last two or three months, for no apparent reason, mainly on boot the fan races to top speed and the system shuts down to protect itself. I researched this a little and found one cause to be inadequate airflow over the CPU to keep it cool; the recommendation made sense to vacuum with a computer vacuum and be sure airflow is not somehow obstructed. I am now thinking all these problems are related to the CPU temp sensor. Is it on the CPU fan or the motherboard, and can raising the fan speed in BIOS help prevent the problem, particularly if it on the motherboard.
John M Gray II

My pentium 4 3.0c stock Intel fan is 4.44 watts. Isn't the mobo designed for this?
Also, can the sys fan header have the speed sensor activated by a bios fix or is it a hardware issue where it just does not exist? If hardware, seems strange since Corecell shows sys fan.
Regards

Lenovo G560 overheating. Need tips on fan speed control

When I am watching movies on my G560 laptop, the area to the left of my touchpad is getting very hot and the laptop is shutting down at times.
When I bought my laptop I used to hear fan noise, but I have noticed recently that I do not hear the fan any more. I was wondering of there was a way to check the fan speed and manually alter it.
The warranty on my G560 is running out with in a month or so, a quick response would be appreciated.

the cpu greece tests over the years are the most bunch of snake oil i ever seen.
one review site did a test with 50 and used choclate and fingernail polish to show most are complete waste of money.
compaq builds junk.
lenovo dose not.
the real reason is the notebook makers dont even built the latops.
there like 3 companys that make 90% of the worlds notebooks and pc.
you never even heard of them either.
they make the sonys,acers and so on in a plant on a line with dozens of brands.
just like the way foxconn makes the apples these are huge companys that make the products per instruction of the notebook brand.
notebooks are not like desktops one bit because they are in a tiny space where heat puts a curse in the board.
when you release this you release that spot.
the part of contact for a cpu die is really tiny so it dont have to make the same contact point as cpu cooler.
cpu coolers of notebook are well designed unlike the desktop cooler they make very good contact.
discrete graphics is another story most of all on compaqs with they used a very bad design and had majior issues with.
trust me there no such issues with lenovos because they use a good company to make there notebooks and they also use a good design.
the fan noise issue well that was more of a watch out for sandy bridge issue as sandy bridge can be a very hot chip.
undervolting the chip makes a huge difference in heat as it comes with no performance loss.
it also dont change the way the cpu sits.
when the cpu was mated to the motherboard it perfict that day.
when you pull the cpu now it never fit the same exact way as it has been stressed over time by the tourqe and the heat.
pulling it will effect the fit.
most people dont have the skill to change the greece on a cpu because they will use to much and unlike a desktop cpu that has no open transistors on the surface the mobile cpu dose.
they will add too much and it will run and short out them.
look at a pic of a mobile cpu and then a desktop cpu.
a very different design.
what you telling people is a skill they dont have because they have no idea that a simple mistake will cost them hundreads of dollers.
notebook cpu run 200-300 dollers and some 500 bucks.
pulling the cpu heatsink will effect it natural fit because it under tenion.
i know this because i know metals well and i have 20 years of experence in this area.
i alos worked for a company long ago that made robots for the waffer cpu come from.
i think some people think they might know a quik fix because they built a pc before but notebooks are very different.
i do custom notebook setups for people up here in boston who are willing to spend more on my labour then most notebooks cost.
when i set up a pc it takes me 4-6 hours normally thats a standard win 7 time with all security and services adjusted complete.
people pay for my services because they get longer run times and they stomp anything even notebook makers that charge thousands for custom setups.
if i thought putting snake oil on a cpu would lower temps i would do it just for the lower fan noise and power use it would save.
i know the moment i release the heatsink i never recreate the same exact fit it had under the stress that time made and the point of contact metal to metal will allways be better then if you add silicon to it.
most people dont get that more then a pin head will be more then enough because more then that will cause a heat barrier and lower that.
there whole point to thermal paste is to fill graps in the metal that are from the lapping process.
it not to help cool it like some think.
no thermal paste will ever work better then a pure magnetic grip of metal to metal.
infact if you machine two blocks perfict they stick to each other as if they were magnets.
tourqe them and add heat and they never do that again.
that why latops heatsinks i feel are much more different them desktops one and what most people dont grasp.
dont belive me call your high school science teacher and he explaine why to you.

Tweak the balance between fan speed and CPU temperature / Dell M6400?

Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hardware configuration
* Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz
* Quadro FX 2700M (G94M)
* 8Go RAM
* 2 hard drives
lspci output
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: NVIDIA Corporation G94M [Quadro FX 2700M] (rev a1)
03:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
03:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5761e Gigabit Ethernet PCIe (rev 10)
0c:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300
output of sensors, idle:
acpitz-virtual-0
Adapter: Virtual device
temp1: +45.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +48.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +46.0°C (high = +105.0°C, crit = +105.0°C)
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +59.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +62.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +63.0°C (high = +105.0°C, crit = +105.0°C)
When I start the laptop, its CPU fan stays at its minimal speed only for 1 or 2 minutes, then increases its rotation speed to a second level. It reaches it maximal speed only under heavy load, when the CPU reaches >80-95°C. I would rather let the CPU run a bit hotter before the fan starts to blow: let's say the fan could enter its intermediary speed between 70°C and 85°C instead of 55-80°C, and blow at is its maximum speed beyond that.
I checked the Fan Speed Control wiki page, but lm-sensors is not able to show me the status of the fans. Any idea ?
Aurel.
PS: the temperature of the GPU is not reported by sensors, and nvidia-settings reports around 60°C. Its dedicated fan is very quiet.

aurelieng wrote:
Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hi aurelieng,
I'm in the same situation from at least 1 month ( INTEL CORE 2 EXTREME X9100, 3.06GHz with 8GB ram, one solid state disk 128 GB, and one sata disk 500GB)
My dell M6400 has dual boot: ubuntu and windows7. The fan works a lot and continuosly in both environment and this is the reason because I have doubt that the origin of the problem is in hardware problem?
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +41.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +41.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +41.0°C (high = +105.0°C, crit = +105.0°C)
Last edited by ginard (2012-11-16 18:09:19)

How do I control my fan speed?

Hello, I have a HP ENVY dv6 laptop, and from time to time it gets really hot, so i would like to have the opportunity to control my fan speed manual. Is there any way I can do that?
Please Help
Sincerely
Crab

Hi Crab,
If your Notebook is running hot then there are few methods you can try to maintain the Temprature.
1.) Go to www.hp.com/go/support website and go to Download Driver section listed under Support.
2.) Look for BIOS and download and install the latest one.
3.) Follow the on-screen instructions to install BIOS and NB might restart multiple times and make sure Ac-power Adapter is connected during the update/installation.
4.) From the Download Driver page, look for Software-Solutions and download HP CoolSense Technology software and install it.
(HP CoolSense Technology is a feature in some HP notebook PCs that combines hardware, software, and mechanical design to dynamically manage the temperature of a notebook).
5.) Restart the Notebook and check.
Also, check the below links for more troublshooting instructions for PC being warmer than normal.
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c01007591&lc=en&jumpid=reg_r1002_us...
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I am an HP Employee****
I work for HP.

Fan speed problem Power Mac G5 Dual 1.8 GHz PowerPC - please help

Please HELP, I have a fan speed problem with my Power Mac G5 Dual 1.8 GHz PowerPC
This is a NOT an Intel machine. I am running Mac OS X v10.5.8
Power Mac G5 - PowerMac 7,2 - Power PC 970 (2.2) - 1.8 GHz with 2 CPUs - L2 Cache (per CPU) 512 KB - Memory 8 GB - Bus Speed 900 MHz - Boot ROM version 5.1.5b1
I have included below Links to download a sound file (.m4a) that I recorded of the fan speed problem and both a .pdf and .spx files of my system profile.
download sound file
http://homepage.mac.com/rep3/filechute/myG5dualsFans.m4a
down load .spx file of my system preferences
http://homepage.mac.com/rep3/filechute/systemProfileREP3-G5dual.spx
down load .pdf file of my system preferences
http://homepage.mac.com/rep3/filechute/systemProfileREP3-G5dual.pdf
When did the fan problem start?
After I replaced the mother board on the computer.
Why did I replace the mother board?
Because the experts at apple agreed with my diagnosis that the major crash problems & kernel panics must have some thing to do with a logic board gone bad. They would not work on it, because this Power Mac G5 dual 1.8 GHz machine is now a legacy model.
What I have done to attempt to fix my fan speed problem? yes I checked the obvious things, here is a list:
1) yes I checked to be sure that the new mother board was the same part number as the original one, and that all things that were unplugged from the old mother board - were actually plugged into the new mother board.
2) all the fans work, I can see them spinning if I use a flashlight and look at them (cover on and off to get at some of them)
3) check all RAM to make sure: a) it was installed properly b) that the RAM worked using TechTool Pro c) even started the machine with only the original RAM that came with it.
4) I installed a Temperature monitor - to see if there was something reading as very hot inside that was causing the machine to continually run the fans at a high speed. No, no heat issues that I can see. Here are the reading from the sensors in degrees fahrenheit, 2009-10-11 16:11:01 -0500
CPU A Die Temperature: 75.7℉
CPU B Die Temperature: 81.5℉
Drive Bay: 68.9℉
Main Logic Board Air Inlet: 64.8℉
Main Logic Board Ambient: 73.6℉
Main Logic Board Backside: 76.3℉
Memory Controller Heatsink: 93.2℉
Processor Card A Ambient: 77.5℉
Processor Card B Ambient: 77.0℉
5) zapped the PRAM
6) followed the SMU reset instructions for
Power Mac G5 (Late 2004)
To reset the SMU on a Power Mac G5 (Late 2004) computer, simply do the following:
• Turn off the computer by selecting Shut Down from the Apple menu or by holding the power button until the computer turns off.
• Remove the power cord from the computer.
• Wait two minutes.
• Plug in the power cord.
• Turn on the computer.
7) followed the SMU reset instructions:
Resetting the Cuda/PMU
How to reset the PMU:
• If the computer is on, turn it off.
• Disconnect ALL cables from the computer, including peripherals and power.
• If possible, move the computer to a place where you are not standing on carpet.
• Open the case and ground yourself by touching part of the metal frame inside the computer.
• Find the Cuda or PMU button
• Press the Cuda or PMU button ONCE. Do not press the button more than once before starting the computer up again.
• Wait 10 seconds, then reconnect the cables you removed in step 2 and turn the computer on.
• If the computer still does not respond after resetting the PMU, the computer may require service from an Apple Authorized Service Provider.
8) ran disk utilities, repaired permissions
9) found a setting in the system preferences that a chat room person suggested had something to do with fan speed. In Energy Saver, under options, processor performance was set to highest, I set it to automatic - this did not change anything that I could tell - BTW I checked my other G5 (a single processor that works fine) that is the setting that that it is set to, and it is nice and quiet.
10) restarted the machine, ..
11) found a Fan Control System Update - but it did not install when I tryed to install it -
12) booted from OSX install disk and ran that disk utility
13) used OnyX to fix disk permissions, clear caches and temp items
Nope - still have the same high speed fan problem. ... PLEASE HELP!!
I have been reading in the MacInTouch reader reports - found this: some one said to use this - thermal re-calibration using the Apple Authorized Service Providers' disk - but that's not available, at least I can not find it - anyone? have an answer to finding this - or can do it for me? I am in Chicago.

The Genius at the downtown apple store said that because it's a "legacy machine" they would not work on it, .. so should I push them?
Well, I personally think that's ridiculous, I'd Push them, I'd call AppleCare & talk up the chain if need be... there the ones that have or should have that Disc... man o man... Personally I'll never visit an Apple Store again in my lifetime, maybe try an independent AASP if none of that helps!..
http://tinyurl.com/ykomqkn
Man-o-man, pop my cork before I explode on that one, if I had anything to do with it I'd close that store.

Questions about macbook pro's fan speed

i'm using a macbook pro early 2008
and i use istatpro to monitor cpu gpu temp
1. do the fans work with a min rpm around 2000 all the time?
2. when i open quite a few apps, mbp get hot, and the gpu temp rises up to 80c degree also cpu temp rises to 60or70c degree. but the fan rpm is still around 2800.
some guys using macbook/pro confirm that with temp around 80c, their fan has a rpm around 3000or4000.
does someone else here have this situation above.
is it normal?
thanks a lot

Welcome!
1) Yes, the default fan speed is 2000 rpm. At that speed they are nearly silent. The speed will increase with temperature. Max revs possible are 6000 rpm.
2) Notebook computers get hot, regardless of make. The temps you see are reasonable for graphic-intensive applications. The MBP will automatically shut down if the temps get too high; I believe the cutoff point is just over 100°C.
There are third-party programs that allow you to customize fan settings but they must be used with care. It's possible to overwork the fans by manually setting their speeds too high.
The best approach is to insure that the MBP gets to use all its built-in cooling capacity. Using the computer on a pillow or blanket is bad; the case bottom dissipates heat but only if air can get under it. Use a lapboard if you must use the computer in your lap.
Exhaust air emits from the hinge area in the back of the case. make sure nothing blocks the case there or you'll get overheating.

What's the normal fan speed?

Hello, my fans have always been around 2000 rpm with both tiger and leopord, so I am wondering what is the normal range for fan speed when the computer is not running anything heavy.

So, I'm not crunching much at the moment; yet I have 133 F and 3906 rpm. However, that doesn't signify. It was flat on a wood table. Now, laptop; Room fan now on. That fan is the main thing. I read a great overview, will post link if I can find it, that air is like fluid dynamics: a MBP flat on a table in an air conditioned room (no fanned air movement) will run hotter than an MBP with space under, with a room fan, moving warmer air. Yah, no, really true.
Get freeware iStat Control 1.1 (1.2 soon): (http://www.islayer.com/), which will display fans' speed and temps in the menu bar, andmore, and make popcorn too, with the lavalamp thingee.
Then I use Fan Control, 1.2, freeware, and set it up a tiny bit just to be cool: " ... Do you think your MacBook (Pro) is running to hot? Give Fan Control a try then. Some MacBook (Pro) are just to hot for daylong use. Fan Control adjusts the minimum fan speed depending on the current CPU temperature. For safety, it leaves the original automatic fan speed control intact ..." Leopard Ready, yah.
http://www.lobotomo.com/products/FanControl/index.html
Both are preference panes in System preferences, which is very elegant, imho. And yes I have Leopard still shrinkwrapped. I will take a stab at it soon. Goodbye, cruel world (nah).

Kernel_task high cpu usage, high fan speed, and low cpu tempterature

Hi,
I've noticed that a lot of people have been having trouble with the kernel_task process, but I couldn't quite find a situation similar to mine (most seem temperature related).
Here is the situation (15' MBP, mid-2010):
- on boot (while the apple logo is shown), the fans speed suddenly jumps, and stays there, even if the computer has been off for a while.
- boot takes a little over a minute, which is considerably slower than what I was used to before today
- when finally started-up, the activity monitors shows kernel_task using between 160-180% of the CPU!
- temperatures are shown to be around 30C, except for the mem controller at 40C (still very low temp), but the fan speed is arround 6000rpm for both fans.
- this happened out of nowhere, as I woke the mpb from sleep this morning.
Since then I've tried:
- multiple reboots
- install all updates
- uninstall flash player (some people where having trouble with that)
- empty the system cache with Onyx (reported as a cause of slow boot)
- reset PRAM
- reset SMC
- put some ice packs under the mpb to cool things even further!
And so far, nothing has worked! I've had this laptop for 1 year, and nothing had ever failed. I upgraded to lion a few weeks ago, and everything had been working fine since the upgrade. This really happened out of nowhere, and none of the many forums I have read could offer a solution, and cals to apple support do not seem to yield better results (though I scheduled a call with them at 9am this morning, we'll see).
Has anyone had a similar set of problems?
I appreciate any help or advice you may have!
Thanks!
-Sebastien

I have the same issue (2.66 2010 MBP Hi-Res Anti Glare.)
I took it to Apple Store Covent Garden, JUST within warranty.
18 days later my machine has a new Main Logic borad, heat sensors, top case, palm rest. etc.
I turned it on.
The fans kicked in. All processors at 50%, big ole kernal task.
I took it back, geniuses rest SMC and tested it under load and it was fine.
weirdly it failed diagnostics at first but then seemed fine
I came home. Fans kicked in...
I took it back. Diagnostics failed heat sensors again
Replaced logic board and heats sensors again, but more carefully this time just in case, tested again.
I took it home. FANS FANS FANS.
Last time I was in the store I was told my machine was fine and had been thoroughly tested.
In mac store, no fans.
I erased hard drive and clean installed Lion
FANS
I replaced hard drive with OCZ SSD, clean LION.
Fans
Software update
SMC
PRAM
permissions
Onyx complete clean/maintenace
FANS/CPU
switched back to Snow Leopard SSD
PRAM SMC ONYX etc.
FANS/CPU
replaced RAM, memtest-ed. fine, FANS
gonna try again but up to nearly 2 months of all my spare time trying to shut this thing up so I can sell it.

GT735 fan speed stuck at 30% under XP SP3 - crashes in games

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