Dell latitude E6440 CPU upgrade

This forum post should help. Remember that just because they have the same socket does not guarantee compatibility. The i7 you mention draws more wattage and runs hotter.

@U2CAMEB4ME 

Thank you for the response.

I thought of i7-4910MQ in the first place.

Since it has higher TDP(47watt) than i5-4300M (37watt), I have done more study and found i7-4712MQ which has exactly the same TDP as i5-4300MQ  (37watt). 

So I am thinking to go for i7-4712MQ finally to avoid that heating related issue.. In this case, should I be concerned about any other issues? 

@mnm2211 

Just make sure your BIOS is up to date.

Dell Latitude E6440 System BIOS:

https://www.dell.com/support/home/us/en/19/drivers/driversdetails?driverid=r5mdj&oscode=wt64a&productcode=latitude-e6440-laptop

And make sure to replace the thermal paste.

Regards,

U2

did this actually work i have the one with the intel gpu and want to upgrade it 

I replaced a dual core I5 4300 M CPU in my E6440 with a quad core I7 4702 MQ.

They both have the same 37W TDP.  The machine runs great and I have not had any problems with overheating.  Please sure to apply fresh thermal paste to the top of the new CPU before reinstalling the heat sink.  A quad core I7 4712 MQ should also work as it also has a 37W TDP.

BTW, I also installed a mSATA Samsung PM871 SSD 256 GB in the 3rd mini card slot (mini PCI-E slot above the WWAN) and the combination of the quad core CPU and the SSD as the boot drive results in a much faster laptop!

Hi, 

I'm up to replace the current i5-4310M on my latitude e6440 with an i7-4712MQ or i7-4702MQ. Since all these CPUs have the same TDP, is it necessary to replace my current heatsink, and my adapter (currently in use 90w)? 

Also, I was wondering which upgrade is better in terms of overall performance:

         CPU (i5-4310M to i7-4712MQ or 4702-MQ)

                                      Vs

(RAM: 8GB to 16GB /SSD: WD green 240GB to Samsung Evo 860 256GB)

Welcome to the Dell Community @JackM6 

No need for new heatsink.

Just remember to update the BIOS and use some new silicon paste.

Best regards,

U2

Hello,

I am trying to upgrade a i7-4610M CPU on my Dell E6440 (A23 BIOS, discrete GPU) to i7-4910MQ, but once I put i7-4910MQ CPU - the system won't boot. The CPU fan does not start (its surely working with the old CPU).  Any ideas? Do I need  to downgrade the BIOS or do something else?

Thank you.

Welcome to the Dell Community @Dell2015World 

Downgrade would not help.

What you would need is a BIOS upgrade.

The i7-4610M is 37W TDP and the i7-4910MQ is 47W TDP.

It should work but run hot???

Do you have the descrete GPU???

What is the wattage of your AC adapter???

Best regards,

U2

Hi U2,

Thank you for your prompt response. My AC adapter is DA130PE1-00 (130W) and the laptop has discrete a GPU (AMD 8600M). I will upgrade the BIOS to A24, try again and share the results, but I doubt the BIOS is the issue here. Once I hit the power on button the system just do not start (nothing on the screen or any POST sounds), just the power om light lit for 3-4 seconds and than go off. So it might be related to overheat, but it seem strange to be like this for a few seconds (and no extensive CPU overload).

Best regards,

BIOS upgrade to A24 does not work. I've tried a few more times to switch to i7-4910MQ in E6440, but it didn't worked. The laptop does not start once I press the power on button (with i7-4910MQ in it) Either the i7-4910MQ is faulty or E6440 does not support it...

Best regards,

I'm in the same boat, looking to upgrade my existing  Intel Core i5-4310M 2700 MhZ (Latitude e6440), g3 socket (aka  rPGA 946B/947 or FCPGA 946) with a i7-4712MQ SR1PS 2.3GHz-3.3GHz 4 Core 8Thread 37W laptop 

It should work according to documentation that I've read on this forum (including the prior link to compatible CPU upgrades at cpu-upgrade.com) but it sounds like people have had mixed results. If anyone has successfully done this upgrade, I'd be curious to hear lessons learned. 

Thanks

Motherboard Model: DELL 0C3H1M
Motherboard Chipset: Intel QM87 (Lynx Point)

Any updates on your system @mnm2211 ?

Don't know if it's helpful to anyone at this point, but I've had an i7-4712MQ in mine for years.