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November 27th, 2013 02:00

e7240 CONSTANT LOUD NOISE FROM FAN / VENTILATOR TURNING ALL THE TIME

We received 2 brand new E7240s directly from Dell, one for myself and one for my colleague. As soon as I turned it on to build it for my colleague, I noticed the machine was overheating and the fan was making a noise. Dell suggested a BIOS upgrade which didn't change anything. They then changed the heatsink, again this changed nothing and since then they changed the motherboard. My colleague has gone on holiday so I don't know if her issue has been resolved, however, my laptop from day one does not overheat (as obviously as it did for my colleague) BUT THE FAN TURNS ALL THE TIME. So much so that I think the person in the upstairs bedroom is using her hairdryer. Dell replaced the heatsink and the motherboard yesterday, I have done the same BIOS upgrade and the problem is even worse. As soon as I switch the thing on, the ventilator turns all the time making a loud noise. My previous model was the E6500 and I wasn't bothered by any noises it made.

The 7240 makes so much noise that I want to throw it out of the window :emotion-39: , seriously I am going to switch back to my 5 year old e6500 which is now very slow, I just can't take the constant hair dryer noise from the fan! I am waiting for Dell to get back to me but I don't see what else they can do.

I suspect there is a design problem with newer models, someone with a Latitude 13 Notebook has also mentioned it on the forums, also someone else with an e7240 states "I have noticed the fan running much of the time - it's quiet but you're aware it's spinning.  I am just setting it up though, so the CPU is fairly busy." A person with the e6320 states "And the fan is loud and turns itself on way too often". 

2 Posts

January 27th, 2015 02:00

I just purchased a new Dell Latitude E7240 laptop with Windows 7, and had the same problem with overheating and the fan running noisily all the time. I've just fixed it on my laptop, it may not work for everyone but just in case I'm entering it here.

The clue for me was that the issue only happened at home, not at work.

  • Using the Task Manager, I found that a process 'svchost.exe' was always running at 25% CPU, i.e. taking 100% of one of the 4 processor cores. For this you need to view everyone's processes, and hence you need a local admin account if it asks for permission.
  • With right-click on that process => 'Go to services', you can study which services are hosted by that instance of svchost.
  • For each of those few services, try stopping one at a time (if it lets you) and see if the CPU usage goes down. For me a clue was one service got stuck on 'Stopping' but never stopped.
  • The misbehaving service for me was the 'HomeGroup Provider'. That was why the issue only happened at home and not at work. The laptop had spotted my HomeGroup on my home network, but had not been able to join it. Possibly some issue with IPv6 that I could not enable on my desktop.
  • In the Services tab in Task Manager, get properties on the that service, and set Startup Type to Disabled.
  • Restart the laptop, to ensure the service is stopped.

This did the trick for me, and now the CPU stays below 5% when idle. This is not solving the issue that the fan is noisy when the CPU usage goes high, but for me that rarely happens now.

If you want to access files and printers on your home network without the HomeGroup service, you can still do this the old way:

  • Network and Sharing Centre => Advanced settings => Homegroup Connection => "Use user accounts to connect to other computers"
  • Also in Advanced settings: Turn on Network Discovery; and Turn on File and Printer Sharing.
  • Then you can click on your wifi network => Add a printer.
  • If your desktop does not appear, click 'Not listed', then Browse. As long as the network discovery and printer sharing are enabled, the desktop PC should appear and you can login in using your local Windows username and password.

Hope this helps somebody.

Peter

1 Message

December 2nd, 2013 13:00

I am having the same problem with a sample laptop that we bought. I thought its some process(s) that shoots up the CPU but it is actually not. 

It has BIOS version A05 dated 10/05/2013.

December 11th, 2013 10:00

I was having the same issue with a brand new e7240 running win7 x64.


on support.dell.com i ran the driver update scanner and one of them of file name: DRVR_Chipset_O2Micro_A01-CY8D1_setup_ZPE solved the issue for me.

as soon as i started the install of this driver the fan immediately spun down and post reboot is normal and appears stable.

i did create a support ticket with dell and let them know this worked for me so that they can look into it.  Here is hoping the fix sticks.

May be notable, this users's computer earlier in the day experienced 2 hibernations which they did not initiate, so for that we temporarily disabled hibernation on their machine but these two events did happen close to each other so i am noting them here incase others had the same issue

December 13th, 2013 07:00

Update: Dell came out again and changed the motherboard (again!) and the FAN. I can now here it turning a lot but it is a LOT quieter. So not sure if the fix was the new motherboard and/or the new fan.

My colleague with the same issue is still absent until after Christmas, so I still don't know whether her issue has been resolved. It is interesting though, that I m not the only one with the problem.

December 16th, 2013 11:00

Today the e7240 was having loud fan noises again and then a few hours later after driving somewhere the user said the computer will no longer power on.  we pulled the battery, attempted power on, nothing, pulled the battery and power cord, held the power button for 30 sec, then plugged back in the power cable (battery out) but nothing, then with the battery back in with the power cord in, nothing.  i am calling dell now to get them to review the system and likely replace the motherboard and fan.  i have one angry user that is for sure.  i am trying to convert their whole ocmpany from HP to Dell and this isnt' helping that our first fancy dell for the most important user in the company is now dead on him right as he was about to start presenting for their company summit.  argg

December 17th, 2013 00:00

This model is clearly not a model for business use. It's flimsy, both of ours were delivered with problems and parts that have needed changing several times. It looks prettier and sleeker than the old, thick, black Latitudes and on paper the spec looks good, the price is expensive but it's a product worthy for the bin. I am convinced it's the equivalent of a laptop you can buy in the shops for half the price (€300 to €400) with regards to life and reliability. Sad because as a woman, I wanted something light and that didn't leave me with many choices within the company allowed, Dell range.

5 Posts

December 19th, 2013 01:00

We have 2 of these new E7240's. On Monday as I was building one, it was noisy all day. The next day while docked with 2 monitors it was exhibiting the "wavy pixel dance" (https://www.youtube.com/watch?v=HAqVVN6HLGk) randomly all day and was noisy randomly. On the Wednesday I called Dell on both issues. The noise issue is having an engineer visit today. The screen issue is difficult to get the their tech support to realise that it isn't the monitors that are the issue, as their script forces them down the broken monitor route..

Strangely it was silent all day until I walked out of the office for the day, having locked it, and it proceeded to be noisy doing nothing, much to the annoyance of everyone in the room.

Engineer is due in today we will see what happens....

December 19th, 2013 13:00

The dell tech came out yesterday to replace the mobo and one other part, i was not onsite but was told that after he replaced those parts and plugged the machine in it started to smoke.  He returned today to replace the power something ocmponent, not sure which one and the mobo again and after that work was done today he identified the short likely was caused by some connection between the mobo and the lcd so tomorrow he is coming back with new parts, wow.  I have requested a replacement machine from my dell rep as this machine is under 45days old and caught fire :(

5 Posts

December 20th, 2013 03:00

Engineer came out and replaced motherboard we noticed that the laptop was getting really hot underneath before he arrived.

Next day. Laptop really hot again and noisy. Will call dell again.

14 Posts

February 26th, 2014 07:00

Same Problem here. I was not able get a new motherboard from the ProSupport. They told me, that this noise is by design.

BTW: my current notebook is an E6400, fan is running nearly all the time, but the sound is less annoying.

April 3rd, 2014 04:00

Noisy by design? Who designs a noisy laptop? Truth is, these newer models do not compare to the older, sturdier models. Or they haven't been properly tested in a quiet environment. This is terrible because an office worker sits glued to his laptop for  8 to 12 (+) hours a day, I need to work with earplugs in at home.

14 Posts

April 3rd, 2014 04:00

@framboiseboo: I agree with that. We will wait till E7250.

April 3rd, 2014 04:00

Well I am the same person who started this thread. Already 2 motherboards have been changed since Octorber 2013 (or is that 3 motherboards). Anyway, last week my trackpad mouse died, so Dell came to change that AND the motherboard again. The trackpad is now working. The PC is rather noisy but not permanently but it's starting to annoy me again. 

48 Posts

May 1st, 2014 15:00

We are seeing some of these issues as well with Windows 7 x64 installed. The laptops are on Bios version A08. I'm not sure why this thread is marked as resolved. It is definitely not resolved.

3 Posts

May 11th, 2014 21:00

Dell WAKE up, problem still persist till today's latest batch (May 2014).. :emotion-39:

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