Dell Latitude E6440 :: Fan Noise And BIOS Thermal Control
Nov 30, 2013
I just bought a new Latitude E6440 Notebook with an i5-4300M and SSD using it with Linux. I noticed that the fan was continuously spinning until I installed the graphics driver from ATI and switched to the Intel GPU.
Now it is off at the beginning but i kicks in when the CPU temperature reaches ~42C relatively loud and cools down the CPU to about 38C. This behavior is very annoying because the fan is switching on and off every few minutes.
I tried to manage the fan via i8k module and fancontrol but there seems to be some control at BIOS level as my settings are always being overridden.Is it possible to change the default cooling behavior of disable the BIOS thermal control completely so I can manage it in software? I tried the Shift+FN+15324 trick but FN+R does not bring up the menu for me. There is also no option in the BIOS where I can change the fan settings. I am running the latest BIOS A02.Is there any other trick to manage/disable BIOS fan-control or is it possible to include the setting in the next BIOS release?
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Mar 5, 2014
I just got a new Latitude E6440. Overall I love the system, but when it is docked / on AC power, I have noticed that I can almost constantly hear the fan. Right now my CPU is only at 6% but I can hear the fan running. Is that just normal behavior with this system? Does it just have a louder fan that runs more often? I just upgraded from an E6410 and I don't recall ever hearing the fan.
I am running Windows 8.1 Pro, and it is a brand-new install. I ran diagnostics and did not find any issues.
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Jan 11, 2015
I was just curious if I would be able to play PC games on my Dell Latitude e6440 Labtop?
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Jun 24, 2014
My keyboardd generates double letters (I'm leaving them in as I type to show what II mean). I've searched this forum for similar probleems and have already done the following:
Updated BIOS
Installed/uupdated toouchpad ddriver and input ddriver
Installed touchfreeeze
Unchecked the keyboard driver in device manager andd restarted the computer
None of those steps has solved the problem.
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Feb 25, 2009
I've recently purchased Sony Vaio FW21E (European model) and to my surprise, I find it quite noisy (contrary to what you can read in many reviews).
The first problem is HDD - I've owned 3 notebooks so far and no one had such a noisy disk. I almost thought that there is some kind of motherboard or GPU fan in there until I opened the case to confirm that the noise really comes from the HDD. It is quite unpleasant in a totally quiet room (like in the night) but I can hear it even during evenings when the room is relatively quiet. Vaio owners with Toshiba MK3252GSX disk (320GB), do you experience the same amount of noise? (On the upside, the performance is really nice compared to my older laptops, Windows Experience Index being 5.4.)
The second problem is the main fan (which I understand is the only fan on this Vaio). It is quiet for the first hour of usage or so but then it always turns on for about 5 minutes, then it's quiet for another 2-3 minutes, then it goes off again etc. etc. I really find this annoying because the fan speed is changing frequently and rapidly (i.e. from zero to high spinning, then it slowly goes down to what I would call acceptable level, then it stops rotating immediately; then it goes of for 100% again etc.)
When you combine these 2 noises, the notebook is quite unpleasant to use in quiet conditions. From the right hand side where the disk is placed, you constantly hear a whisper-like sound while from the left side, you are distracted by the main fan which tends to be turned on and off in a few minutes intervals..........
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Dec 1, 2009
I created this at dell ideastorm:
http://dellideas.force.com/ideaView?...00000000azJAAQ
On the forums, i constantly see people complaining about the heat their laptop produces. Some people (like me) who use their laptop on their lap a lot, prefer to have the fan on constantly, to keep the laptop cool to the touch.
Others, they hate the noise the fan produces so they prefer the laptop to be not so cool, but they want it silent .....
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Apr 2, 2009
I have come to grips with the fact that my E6400 (see specs below) has idle temps of around 42 for both CPUs and around 62 for the GPU (while docked).
While these are not dangerous, and while the slow fan speed is very quiet and therefore doesn't bother me, I refuse to accept defeat so easily.
So, I am thinking of replacing the thermal paste and possibly the thermal pad on my E6400. There is at least one person here at the Latitude/Precision sub-forum who did that, with amazing results
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Jul 16, 2009
i have a question for everyone who has removed the heatspreader from an acer 6920g. Did the northbridge made contact with the heatspreader by a thermal pad or by a thermal paste ? mine had something that looked like a thermal pad but when i tried to remove it , it tore into small pieces ( i know a thermal pad is not like that ). i used a thermal paste when i put everything back together. Should i open it up again and use a thermal pad for the northbridge ?. In everst in the sensor menu it shows 42 degrees celsius for the motherboard sensor ( i assume that is the northbridge).
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Mar 4, 2009
I'd like to ask any E6400 or E6500 owners about their fan noise as I'm considering those machines right now. I'm thinking of going with the Intel 4500 graphics for hopefully less heat and noise than the Nvidia NV160.
How long does the fan stay off while doing basic web browsing? When it turns on does it ramp up to a slow speed or does it blast on and then ramp down to a slow speed? Does this cycle of off and on continue?
The reason I'm asking is I had a Lenovo Ideapad Y430 that was very irritating regarding fan noise. With basic web browsing or even idling the machine the fan would stay off for about a minute or two and then would blast on when it turned on before ramping down immediately to a slow speed for about a minute. Then it would shut off and this cycle would continue over and over. Was very distracting and annoying when in a quiet environment.
I'd like a fan with either consistent fan noise (stays on at slow speed forever) or with no noise at all (stays off forever). How close is the E6400 or the E6500 to this ideal behavior?
I was amazed when I tried out a Dell Studio 1537 that had a fan that didn't turn on at all while web browsing. I could use it for hours and it wouldn't turn on.
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Dec 1, 2008
Bought a latitude E6400 a few weeks ago. Every now and again a loud cracking noise can be heard somewhere around the left side of the keyboard. This happens very infrrequently, about 10 times since I have had it.
Before I ring Dell has anyone come across this before?
The noise is like a crack and then a smaller click Sounds like a small peice of plastic just broke or something.
The laptop could be sitting there doing nothing for 20 mins and then the noise happens.
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Apr 6, 2013
I just bought a Dell E6400 and it has a fingerprint reader! However, the Dell ControlPoint isn't installed. Any link to whatever I need?
It's windows 7 pro, 64 bit
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Jan 1, 2010
Recently my laptop starts to make a high frequency whining noise, almost constantly and rarely stopped.
I tried to locate the component which the noise was originated from, I can only figure out it's somewhere below the memory module, but there is no moving component there, so my biggest suspect is the fan, because if I put my ear to the back of the laptop, except the whining I also heard very minor "clicking" noise.
Another weird thing is, this noise only starts after Windows is loaded, not in BIOS or during booting, although the fan was running at those times.
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May 4, 2010
I just picked up a e4200 with backlit keyboard and whenever the back light is turned on there is a noise (slight buzzing or hum) that can be heard. As soon as the back light turns off the sound goes away. It's kind of bugging me because you wouldn't think that the back light would add to the decibel level of the laptop..
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Jan 8, 2015
Acer manual suggested password control can be changed in BIOS. I have Aspire E5-511P. The security page in BIOS does not work. I can scroll with arrows in other pages but nothing happens on Security page. Password at boot has Disabled but every boot asks for password. Is there a repair for BIOS? Also, the Support page on this site does not recognise my model of Aspire.
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Aug 4, 2014
I have an Ideapad Z500 with an W8.1 installed on it. I updated the bios to the last version but after that I can not control the luminosity level anymore. When I try to do it pressing the Hotkey it trurns to the lowest level of luminosity and I can only fix it by pressing the hotfix key when the laptop starts. I can not return to the old bios version. What shall I do?
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Jan 12, 2009
For quite a while my GF has nagged me for a "nice laptop", i.e. a MacBook. With the new models out, the old ones (just before the latest one-piece-thingies) should be easier to find. Most of her friends have one and I am soon getting my bonus, so starting to shop around.
Myself, I am a ThinkPad evangelist (those "ugly, square, black things" according to my GF), and have no trouble picking a used one. With Macs I am basically into uncharted territory, hense my post.
1) I am concerned if the previous owner has enabled features that would interfere with our privacy - remote activation of camera, remote access, etc. How can I check this and make sure she will not participate in some amateur BigBrother?
2) What should I check on a 13 inch MacBook except the obvious battery, fan noise, scratches and dirt beyond normal?
3) Does the Mac have BIOS, drivers, etc. I should upgrade before I hand it to her?
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Sep 4, 2009
In the BIOS on my Latitude D630 there is an option for the CPU to be seen as a single processor or as two processors. The CPU is a T7500 Core 2 Duo 2.2GHz processor.
The BIOS info states that some applications may run faster when it is seen as two processors. Can anyone give me any insight into what these options actually mean in terms of PC performance ?
Also, what types of application would be impacted by the single processor or two processor options ?
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Apr 15, 2014
I've installed and run Dell client system update on my Latitude e6520, just passed to my from a colleague,
This is recommending I update my bios version to A19 from here.
[URL]
however I get an error telling me to update to A08 first when I run this.
But I can't find A08 on the support site for download, earliest previous version listed on the above link is A12
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Apr 4, 2013
A07 Bios has been validated on the following operating systems:1. Microsoft Windows 82. Microsoft Windows 7 3. Microsoft Windows XP Service Pack 3.
Why for the Bios A09 and A11 is not shown for what operating systems are validated?
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Sep 4, 2009
I upgraded to BIOS A15 when it came out and since then I have had a problem that I never had before. I have now downgraded to BIOS A14 and the problem is gone.
Problem description
When rebooting or shutting down Windows XP the shutdown process hanged. I think it only occurred when the computer was docked in the docking station. I have the advanced docking station with serial port, parallel port etc.
After I upgraded to A15 I noticed that the parallel port and serial port got listed the safe remove dialog box. With A14 and before they are not listed.
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Dec 16, 2014
I've a Dell Latitude d630 Laptop and I want to change several BIOS characteristics (Boot device order, etc)
The laptop service Tag is <ADMIN NOTE: Service tag removed per privacy policy> and I had the admin PSW: oqzbww34
Last year my son changed the admin BIOS pw and now I can't change this parameters (I can enter at BIOS but can't unlock setup to change boot order, etc..); the old admin pwd doesn't work now
I've opened the laptop and disconnected de CMOS battery but this didn't work
Is there a master pwd to unlock bios setup or a jumper in motherboard to reset admin pw?
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Nov 13, 2014
I bought aDell Latitude E6410 laptop yesterday and every time it turns on it says no boot or something. So I push the enter button and it resets. Then when it shows the dell logo again I press F12 and go to the boot sequence and its set on cd drive and not the internal HDD. So I choose to redo that all over again and then press boot from internal HDD and it works no problem but its a lot to go through just to start a laptop. How can I figure out how to change the admin password so I can set the boot sequence right.
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Oct 25, 2010
create a new Bios Screen to ours Latitude E6410.I have used a bootable CD with a splash.exe file to load a Bios Screen with the company logo and it had worked in ours Latitude D600/610/620/630 and E6400.Now when I try to do the same with our E6410 I'm getting the message " This Bios does not support splash.exe. Upgrade your system Bios and try again."
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Nov 21, 2013
Updated Bios to A12 today, the system stated the updated was successful but after it's auto reboot it longer boots.
When you turn the system on the screen stays powered off (nothing on the screen, and no back light). The HD and WiFi lights stay on, the battery light flashes.
I've tried removing the battery and powering with just the mains adapter, I get the same problem.
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Jan 5, 2015
My company recently purchased a E6420 from eBay, and upon turning it on we were admin locked out of the whole system.How to get into the system?
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Jan 23, 2015
I used to be a Dell Technician too, 578260. I got a latitude e6430 given to me from the company I am currently working now Prodagio Software. I am locked out of my BIOS but manage to use the laptop using finger print. I forgot my password and with that problem I am not able to modify anything inside the BIOS. I am afraid to do a reset because I might lose the A08 upgrade.
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Nov 5, 2014
I was replacing my harddisk for a bigger one. after some trail and error with the AHCI driver for Windows 7 installation, suddenly the notebook freezes before I can enter the bios or it even can boot.
Now it is stuck at the DELL logo with text of latitude e6320 series, bios revision A06. With the blue line
I already tried to remove battery and power, but no solution yet.
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Jun 11, 2013
I get new E6350 laptop. Installing some software,After last boot Now asking BIOS password. I know 100% that I don't set master password,
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Jan 16, 2015
After killing my old battery, my Latitude E6500 is refusing to detect the new battery I bought for it. It will run off the battery if I disconnect the AC, but will not charge, I have been using a co-worker's E6500 to recharge it.
I have been instructed to run the E6500 Bios flash, however since the computer does not detect the battery, it will not allow me to proceed with the flash. /forceit does not work. Are there any other command line variables I can use to make the bios upgrade perform without a battery check?
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May 26, 2008
I reinstalled my D620 from scratch (ie. formatted the disk) and reinstalled from the Dell supplied XP Pro media CD. I downloaded and installed all the relevant drivers. I have Intel wireless working, the nVidia card working at 1440x900 etc ... However, I can't seem to get the power/battery management to work. The D620 shows its battery light as green when the AC power is plugged in and the physical battery button lights up all the LEDs when pressed when the battery is partially/fully charged but neither the BIOS nor XP Pro recognize the battery.
Similarly, when the AC power is disconnected the battery works fine by itself for x hours but the power cord icon remains in the the taskbar and the battery light on the laptop glows orange as soon as the power is cord is disconnected. The LEDs on the battery itself however light up when the button is pressed on the physical battery. On reboot the BIOS also does not recognize there is a battery present and not does XP Pro.
In other words, everything works as expected of a laptop - except when totally wireless, how much juice/time I have left in the battery - this is fundamental to any portable device.
A few hours prior to the reinstall both XP Pro and the BIOS recognized the battery no problem and worked accurately and without fault - so I refuse to believe this is a bad battery. Somewhere there must be a driver to enable the BIOS and XP to recognize the battery ?
The battery works and both XP Pro and the BIOS were well aware of its existence prior to the reinstall a couple of hours earlier. All I did was to format the hard drive and initiate a totally fresh install of XP Pro - and installed the drivers downloaded from Dell based on the Service tag of the D620.
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