CPU Fan Speed and Memory Questions

I"ve noticed recently that my fans sound a little different. When using aperture and sliding some of the image adjustment controls the fan will increase as I'm sliding the controls and stop when I stop.
I've been monitoring with istat pro, and my CPU fan is almost always at 0, I've seen it not at 0 a few times but very rarely.
Readings:
Power Supply: 599
Exhaust: 655
CPU Fan: 0
HD/Expansion: 499
Temperatures seem normal except northbridge has always run a little hot since I got the machine. About 180F
I did the hardware test and the message I got was:
4MOT/1/4000002:CPU_MEM
I'm assuming this means that one of my memory chips is bad but where do I go to find out what this code means? And does this mean there is no problem with my CPU fan or did the test just end when it found this error?

Good news about the RAM. Have you checked to see if the fan is gunked up with dust and dirt or some other obstruction? Could free it up or be the source of a fan failure.
A simple procedure is to reset the SMC (System Management controller). Here are Apple's instructions:
http://support.apple.com/kb/HT3964
The SMC has control over the fans. The reset won't do any harm but follow the instructions.

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IMac (early 2009), 3.06 GHz, ATI 4850 - fan speed and temperature questions

Well, so I downloaded and installed Temperature Monitor and iMac Fan Control - mainly for observational purposes and not for toying around with the fan speeds and I've got some questions. Mind you, I haven't tampered at all with the fan speed settings, just installed Fan Control. Here are my readings (while browsing the internet with Safari and doing a chat via iChat):
Fan Speeds:
CPU fan (desired) 1300 RPM / (current) 1530 RPM
HD fan (desired) 2100 RPM / (current) 2099 RPM
DVD fan (desired) 1300 / 1298 RPM
Temperatures:
CPU Heatsink: 92°F
Internal HD: 108°F
Internal DVD: 95°F
GPU Heatsink: 107°F
Are these, under the circumstances, normal readings?
Thanks in advance for your replies.

Your welcome and no problem. I would say only the Apple engineers can tell you why the fans are set to those speeds however my best guess is the obvious they found those speeds the closest to keeping the temps at an optimum operating temperature. I found when I'm doing graphics intensive work my machine heats up but quickly cools down when I'm done.

Suggestions needed on cpu size/speed and memory req's for ilife/gar. band

as is noted, I've got an older ibook/processor, w/limited RAM. Suggestions on updates to present ibook g4 vs. purchase of new mac of same size?
What have other OS X 10.39 users found helpful to speed up/free up space. I keep getting the message that i can't play a certain track(s) because of space/speed needs. any help you can give is appreciated

Quote
Originally posted by blue_heart
the programs which going to run are mainly microsoft office programs,OE, IE, photshop.
In this case, I cant strongly enough recommend LOTS of ram; you wont need a fast hard drive if you can hold the whole high-res image in core I would also suggest you consider a trinatron monitor at 18" or so; so you can have purty 1600x1200 images (except for the dead line which trinatrons have) to play with; might make keeping cost under control difficult, but they *are* the only eyes you have got
Your point about real time virus scanning and loading large files (later) is well taken; in light of this I cant fault your choice of hard drive (although there is a 72GB version available at the same speed, not cheap tho.).
Quote
IMO, dropping $30 from the graphic card and $40 from hard disk will not save that much to get critical component or get higher one, if i do so i can add $30 to get another stick of 512 ram, but i rather keep the HD and GC, and for now the capacity is not an issue for me
Life in the US is good if such components are cheap; over here is Aus the high end graphics and disks are still BLOODY expensive whilst ram is relatively cheap.
Indeed, going from the drive and gfx card you have to a 80gb ata-4 and a more basic gfx card would save ~250 AUD; which is another stick of 512MB PC3700.
Lucky you.
Anyway, in light of your comments, I cant strongly enough recommend RAM; but your other components seem good (I tend toward HP printers down here, but that relates to print reliability at high ambient temp and ink costs); Dont forget a GOOD PSU (many discussions about such, I recommend Antec TruPower 480W).
Of course, I cant resist recommending you go linux, openoffice and GIMP (photoshop workalike); that would save you a LARGE chunk of cash to spend on better hardware (about ~$1200 bucks if you planned to buy XPpro, OfficeXP and Photoshop down here).
err!
jak.

Detect cpu speed and memory

hi! i'm a newbie in java.
i have a web project requirement that needs to detect the client's cpu speed and memory and diplays it on the webpage. could i do this in java applet? can someone direct to the right resources on how i would be able to do this.
thank u so much!

Aside from the System.capabilities class, I don't believe you
can get
anything more without using one of the wrappers like
Director, or Zinc.
Dave -
Head Developer
http://www.blurredistinction.com
Adobe Community Expert
http://www.adobe.com/communities/experts/

CPU FAN Speed & Voltages Question?

I have an MSI KT4 Ultra MB with a retail AMD XP2400 Processor which came with a Fan & Heatsink.
1. My Temps are fine, gen However my CPU Fan speed varies & I get the following speeds indicated at various times - 4141, 4167, 4116, 4193. Is this OK? I do not believe my Fan speed can be controlled by S/W so I was wonsering why this oocurs?
2.
Any advice or comments would be much appreciated! I am a compulsive worrier regarding my PC.
Cheers

1. post your PSU brand and amps
2. get another hsf, these delivered with cpu are not good.

CPU Temp and CPU Fan Speed

I am having a strange problem . One time I will boot the PC and CPU temp is 43 and CPU fan speed is 1308 rpm in Core Center. I do a restart system and the CPU temp is 32 to 36 and CPU fan speed 3308. Not sure if I should trust Core Center . Bios shows CPU temp 48 and fan speed of 3328. I have been reading here that there are a bunch of threads containing some kind of problem with CPU temp or fan speed. My Bios is 1.4. If anbody can give me some ideas that would be great.

Open CoreCenter on deshtop. Click where it says CoreCenter. Click Cool&Quite button. Then Click apply. This drops the fan speed back into the 1400 range and the temp will rise back to the 40s.

[Solved] Asus L1366 mobo, cpu fan speed control

Hi, everyone,
I finally have this new core i7 system, to replace my old AMD athlonx2. I have one question about the CPU fan speed control.
I remember that in my old system, the cpu fan speed control works out of box, no configuration is needed.
But when I install arch 64 on this new i7 system, the cpu fan is running at its maximum speed constantly while the CPU temperature is modestly low. I know there is a wiki teaching how to do it.
However, I am just curious why it doens't work out of box any more? Does CPU fan control work for you guys out of box normally? especially the new Core i7 cpu users?
Please let me know, really appreciated it.
Thanks a lot.
Update: the issue is solved, see my last post, the solution is blacklisting: asus_atk0110, instead use w83667hg.
Cheers.
Last edited by mark.altern (2009-10-01 08:18:18)

First off, it would be useful to know what the sensors-detect script actually reports.
Okay. How fan control works on Linux: First, navigate to /sys/class/hwmon
Each of these folders, i.e. hwmon0, stands for a sensors monitor / fan controller on your mainboard that may control one or several fans. Inside hwmonN, there should be a subfolder called device, which contains several interfaces if your BIOS allows software-side fan control. You can read them with cat and write to them with echo.
Examples:
pwm1_enable shows if OS-level fan control is enabled (1) or disabled and in BIOS control (0). Changing fan speed won't work if this is disabled. (i.e. cat /sys/class/hwmon0/device/pwm1_enable reports 0 -> disabled; you could enable it with echo 1 > /sys/class/hwmon0/device/pwm1_enable).
pwm1 allows to change fan speed. The values range from 0 (fan off) to 255 (full speed, 12V).
fan1_input shows the current RPM if a fan is connected. You can only read from this interface. Its useful to check all of these in the each of the hwmon folders to find out if there is actually a fan connected to the fan controller (they often have more ports than mainboard manufacturers use).
There might be a fan1_div, this is somehow related to how the kernel reads the RPM, I don't know how it works.
temp1_input interfaces can appeare too, if some of the chips have temperature sensors located somewhere. I *think* lm_sensors places the core temperatures it reads from CPU (the coretemp-isa-000X thingies) in one of the hwmon-folders too.
There might be interfaces for different fans in the same hwmon folder, i.e. pwm2_enable, pwm2, fan2_input, etc., all interfaces with the same index belong to the same physical fan connector, and all in the same hwmonN are managed by the same IC on your mainboard.
Warning: These interfaces, if they work, control the fans directly without any kind of security measure. If you shut some essential fan down, it will stay off until you reboot your CPU shuts down.
(If you see something likein0_alarm, in0_input, in0_max, etc. it's a voltage monitoring chip.)
If one of those interfaces can do something, OS-level fan control does work, if none of those folders contain a working pwm interface, fan control seems to be unavailable.
Sometimes there is an option in the BIOS to enable it, and for some BIOSs software-side fan control only works if dynamic fan control is disabled in the BIOS and fan speed is set to a static value - or vice versa.
I don't know what you are using to control fan speed, there are many applications that use these interfaces, i.e. GNOME or KDE power managers, so I'm not sure what is happening:
IF: Windows 7 enables OS-level fan control and sets it the RPM to those you observed and you have nothing that provides fan control in Arch and so fan control stays at BIOS-level, which might also read out a different sensor / the same sensor differently or it might be more conservative in setting fan speeds altogether;
OR: You have something that provides fan control installed in Arch and it reads out a the wrong value supplied by lm_sensors and thus sets a higher fan speed.
Anyway, possible solutions I can think of:
Find out if you have some kind of fan control software and what it does. For example, I use the fancontrol daemon, I can't help you if you use something else.
The wiki mentions how to assign a fan speed to a certain temperature sensors. You might assign it to a different one. For example, there are no sensor chips on the mainboard of my EEE (no temp1 etc.) so I assigned the fan speed to the temperature reported by the BIOS via ACPI (those are in /sys/class/thermal, also no "device" subfolder on EEEs):
FCTEMPS=/sys/class/hwmon/hwmon0/pwm1=/sys/class/thermal/thermal_zone0/temp
You could also change the MINTEMP/MAXTEMP values to one higher than those you actually want to compensate for the effect of lm_sensors reporting temperatures that are too high.
It is currently not possible for a mortal user to change the coretemps lm_sensors reads, see this post, last paragraph.
There is a configuration file, /etc/sensors3.conf, you can change sensor names and adjust offsets here, but only for the monitoring chips and their sensors that are on the mainboard.
Last edited by Malstrond (2009-08-19 19:34:22)

CPU Fan speed

Hi everybody
My question is: what is the range (min and max rpm) in which cpu fan speed should stay?
I have an Athlon64 3000 with retail fan.
Thanks for your help

Quote
Originally posted by Squared
Something that I have had to do for a number of CoreCenter versions is once I'm booted up I need to open the Core Center control panel, click on the core centre logo to bring up the fan control panel, then make sure the Cool'n'Quiet option is checked and click apply. After about 3 secs my fan will drop down to the lowest speed, then the fan control seems to work from then on. I've read here that some of the earliest versions of CC did not have this bug, but I can not remember at the moment what version that was.
If you set the fan control to "user mode", change the CPU Fan to "low speed" hit apply, then change the fan control back to "cool'n'quiet" you should find that corecenter will start up at low fan speed. corecenter seems to set the fan at whatever was last set in "user mode" on startup which is max speed by default.
Might save you a few seconds every boot up...

HP PRO 3400 Series desktop won't boot CPU fan starts and stops , no video, no beeps

I have the above computer with an i3-2125 CPU, Windows 7 Home Premium 64 bit, and a 300GB Seagate Hard drive. I've had it for about 2 years and been working fine. It started acting up about 2 months ago. It would lose the date and time. I checked the battery, and it was OK, so I kept using the computer. Then on 9/15/2014 it hung on "Starting Windows", I did the following:
1. Ran the built in HP diagnostic on hard drive and memory and they both passed.
2. Tried to go to last known good configuration and nothing happened.
3. Noticed the date and time were off, replaced the battery, nothing changed.
4. Tried another hard drive from another HP PRO 3400 Series and it would boot up but could not set date in bios.
5. Tried all kinds of things but could not set date in bios.
      a. Bios date read 48/00/0048 after removing and replacing battery.
      b, Tried to reset date to 9/16/2914 and it gets 56/00/0051
6. Then it wouldn't boot at all.   So now when you turn on the power, the CPU fan starts and runs for about 1 second, then shuts off for 4 seconds, then starts and runs for another 1 sec and it does this continuously. There is  no video and no beeps and no difference when all memory is removed.
7. I removed the power supply, and checked voltages. It appears to be OK.
8. I removed the motherboard, and inspected it- saw nothing obvious.
9. I connected the power supply to the motherboard with nothing else connected to the motherboard, and I get the same thing. CPU fan starts then stops continuously, no video no beeps.
10. I am thinking it is the Motherboard, but I sure could use some suggestions as to what to do next.
Thanks
Maxgle from CA

Maxgle, welcome to the forum.
I believe that you would get more responses to your problem if you start a thread here. They are the members who know your computer best.
Please click the "Thumbs up + button" if I have helped you and click "Accept as Solution" if your problem is solved.
Signature:
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Fan Speeds, and Mirror Raid with New Internal Hard Drive

Regards,
I recently installed and formatted a new hard drive in my PowerMac dual 2.3 ghz computer and I have a few questions.
1. Now that there are two hard drives do I need to do anything to ensure that the fan on my computer can keep them cool? I think the fans I have in the hard drive bay is enough, but I do not know if they will automatically set themselves to run properly. I can monitor the fan speeds and temp from iStat pro, but do not remember what level the temperature was before installing the new one.
2. Given that my new drive is a SeaDisc hard drive and the older one is a Western Digital, will this cause any problems in creating a mirrored RAID. I believe that both are 7200rpm drives, and my second hard drive is a little larger (I will just have unused space after making the RAID). I am concerned with the fact that these two drives are from two different manufactures. Will this cause problems or drastically slow down the reading and writing of data? Has anyone else experienced problems in making a mirrored RAID from two hard drives that are not exact matches, and even come from different manufacturers?
Any advice will help.
Thanks
earpshmael

Hi earpshmael;
Generally when creating RAID arrays the more similar the drive the less problems you tend to have.
The real question is exactly why do you want or need RAID?
I think so many people seem to think that RAID will solve all of their problem. I hate to tell you the bad news but it will not.
Generally there are to varieties of RAID available using the software RAID built into OS X which are 0 and 1. RAID 0 or stripling is generally for moving large file rapidly for applications like HD video. It usually doesn't help the OS. RAID 1 or mirroring is for protection from drive failure. It is not a valid backup solution.
Allan

[Solved] lm-sensors fan speeds and voltage.

After installing lm-sensors and running sensors-detect I have the following readings from sensors;
~$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +42.0°C (crit = +80.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +47.0°C (high = +78.0°C, crit = +100.0°C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +42.0°C (high = +78.0°C, crit = +100.0°C)
I am sure in the recent past I was able to retrieve fan speed and voltage readings from this machine;
|Abit FP-IN9 SLI | Intel(R) Core(TM)2 Duo CPU [email protected] | GeForce 9800 GT |
I suspect this is something that I am doing wrong (or is it a kernel issue??) as I have the same problem on a similar machine running Ubuntu 10.04.
Any ideas appreciated.
Last edited by ancleessen4 (2010-03-09 08:31:15)

Hi graysky,
You were spot on!
I followed the instructions in the wiki article to add
acpi_enforce_resources=lax
to /boot/grub/menu.lst
Reboot...
Voila!
[neil@archbox ~]$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +30.0°C (crit = +80.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +36.0°C (high = +78.0°C, crit = +100.0°C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +34.0°C (high = +78.0°C, crit = +100.0°C)
w83627dhg-isa-0290
Adapter: ISA adapter
Vcore: +1.12 V (min = +0.00 V, max = +1.74 V)
in1: +0.91 V (min = +0.51 V, max = +0.21 V) ALARM
AVCC: +3.30 V (min = +2.98 V, max = +3.63 V)
VCC: +3.30 V (min = +2.98 V, max = +3.63 V)
in4: +1.10 V (min = +0.00 V, max = +0.14 V) ALARM
in5: +1.20 V (min = +0.13 V, max = +0.00 V) ALARM
in6: +1.58 V (min = +0.02 V, max = +0.00 V) ALARM
3VSB: +3.23 V (min = +2.98 V, max = +3.63 V)
Vbat: +3.01 V (min = +2.70 V, max = +3.30 V)
fan1: 0 RPM (min = 340 RPM, div = 128) ALARM
fan2: 811 RPM (min = 332 RPM, div = 16)
fan3: 0 RPM (min = 340 RPM, div = 128) ALARM
fan4: 0 RPM (min = 340 RPM, div = 128) ALARM
fan5: 0 RPM (min = 527 RPM, div = 128) ALARM
temp1: +28.0°C (high = +72.0°C, hyst = +0.0°C) sensor = thermistor
temp2: +29.0°C (high = +70.0°C, hyst = +65.0°C) sensor = diode
temp3: +38.5°C (high = +70.0°C, hyst = +65.0°C) sensor = thermistor
cpu0_vid: +0.000 V
[neil@archbox ~]$
:D

MSI Max 2 BFIR; Problems with CPU Fan speed in PC Alert!

servus...
First of all, I have Bios version 1.3 from the .de support Page.
I don´t know, why .com.tw doesn´t have this version.
But here´s my problem:
PC Alert doesn´t show a CPU-fan speed!
The northbidge fan shows the fan speed roundabout 5000.
In BIOS CPU Fan ~2500
PC ALert versions:
4.005
4.006
Any ideas?
Thanks

Thank You for the reply,
Before the latest update to PCAlert4 it was working properly, I cross checked the reported info. to that of Sandra, MBM, and in the bios.
Also the temps are only swapped between the system temp. and the CPU temp., other than that they are correct.
Thanks,
John

CPU fan speed problem -- similar to one already posted

Core i7 290
6GB SuperTalent DDR3 RAM 1333 (3x2GB)
BFG GeForce GTX 275 OC
2 120mm case fans (front/back)
Thermaltake CL-P0533 CPU cooler
Vista Home Premium 64-bit
MSI x58 Pro MoBo w/BIOS v.8.3
PCP&C Silencer 750 watt Power Supply
500GB Seagate Barracuda HDD
Yeah, I know that all that info probably isn't that necessary.
Problem: I have a Thermaltake cl-p0533 for my core i7 920. My fan runs 6000+ RPM all the time. I've tried using the overclock center, greenpower center, and the BIOS smart fan thing. In BIOS, I tried setting it to 25% idle and 50c target temp range. No dice. I've tried using speedfan and all that I got was the speed knocked down about 300-500rpm for a bit. My CPU idles at about 33c (according to speedfan and OC center). The CPU fan speed is supposed to be able to be controlled. The noise is really annoying. Any help would be most appreciated.

Quote from: cooldudeguy911 on 30-July-09, 13:51:38
Core i7 290
First, I meant 920 (I must be dyslexic or something)
Yes, the CPU fan is connected to the CPU fan power connector (according to the mobo manual). I've set SpeedFan for the same as I had my BIOS settings. I've since changed them to lower temps. I've tried SpeedFan with and without using the SmartFan feature in the BIOS enabled. My Two case fans are super quiet, so I don't use any regulation for them. So my SpeedFan settings look like this:
Speed 1 - minimum value = 25% maximum value = 100% auto variated
Temp 1 - Desired = 42c warning = 50c
Cores 0-7 = same as Temps 1 settings
I've also disabled the other temperatures for monitoring and fan control
As for the number of wires for the cooler fan, there are 4 going to the mobo.
I don't really know much about add-on fan controller parts. If that's the route I end up needing to go, any recommendations?

Z77A-G45- CPU fan speed problem

Hi all, new to this forum and MSI Motherboards.
i have a problem with my CPU fan speed when i plug any fan and water cooler fan into the CPU 4pin they all run at 2000+ rpm, but when i use the fan 1 or fan 2 --4 pin it runs at a slower speed of 1400rpm, am i missing something in bios, i have 2.5 version of bios, would be greatfull for any help....

Should be able to adjust in the section below or with control center.
Quote
Hardware Monitor
Press <Enter> to enter the sub-menu.
CPU Smart Fan Target
Controls CPU fan speed automatically depending on the current temperature and
to keep it with a specific range. If the current CPU temperature reaches the target
value, the smart fan function will be activated.
SYS Fan1/ Fan2 Control
These items allow users to select how percentage of speed for the SYSFAN1.
CPU/ System Temperature, CPU FAN/ SYS FAN 1/ SYS FAN2 Speed
These items show the current status of all of the monitored hardware devices/ components
such as CPU temperature/ system temperature and the few fans’ speeds.

MSI H81M-P33 Cpu Fan Speed Problem! Urgent

Hi. Bought a H81M-P33 board and got a problem.
I can´t increase my CPU fan Speed to maxium RPM . Tried to use Command Center and Board Bios without any sucess.
This leads to my cpu (i5 4670) getting hot with stock cooler. When I´m encoding a video it reaches 85º. The best solution I had was to connect CPU Fan to Chassis Fan slot on the motherboard and it increased speed, but still it doesn´t increase past a certain value.
What can I do to solve this problem? Tried everything without any luck. The board doesn´t handle CPU fan speed + temperatura increase well. Is not normal to have a CPU stock volts getting hot.
Thanks

I know that for sure XFM. The thing is that the board isn´t increasing CPU fan speed as it should. Ofc a better cooler would do the job, but even with stock cooler it can be cooler. The problem is that the fan is always in slow mode :|

CPU Fan Speed and Memory Questions

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