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JS92
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Latitude E7450 heatsink not covering cooling surfaces

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Hi everyone, 

I recently encountered a strange thing in my Latitude E7450 laptop with i5 processor. After 3 years it was running a hot when performing easy tasks so I decided to change the thermal paste. When doing so I noticed that there were 2 cooling surfaces under the heatsink, but the heatsink only lined up to connect with one of them. The other one is located beside it, so no thermal paste can be applied to it (and wasn't). Please see my pics as a reference. In the pics I flipped the heatsink upside down, but you can clearly see how it aligns with the screws, and that it "misses" one of the cooling surfaces. 

Since it looks this way I assume it should be this way? But why have a cooling surface that is not connected to anything? Btw the E7450 chassis gets really hot at the fan area, but I have read this in reviews also and it seems like it's supposed to be that way. 

Also it's clear that the heatsink is wide enough to cover both of the surfaces, and it would seem more logical to me if it were mounted so it covered both of them. I know this laptop has not been altered in any way before I received it, so it has to have been this way from the factory. 

 

DSC_0354.JPG

 

DSC_0355.JPG

After applying the paste to the rightmost cooling surface and assembling the laptop, it runs up to 80 degreed C while surfing the web. see pic. temp.PNG

Thanks for your help, I'm confused here :/

//

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Re: Latitude E7450 heatsink not covering cooling surfaces

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@JS92 wrote:

Thanks, 

So I do have the correct heatsink? 

Thanks

//JS


@JS92 you have the original heatsink that shipped with the system. If you intend to replace it go with the redesigned version.

Alan

DELL-AlanD
Social Media Support
#IWork4Dell
I'm based in the UK and I'm usually available Monday to Friday 9am-4pm GMT
Get Support on Twitter @DellCaresPro

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U2CAMEB4ME
3 Argentium

Re: Latitude E7450 heatsink not covering cooling surfaces

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Welcome to the Dell Community  @JS92 

That is not the heat-sink for that CPU.

You need this one:

Heat-Sink.PNG

Dell part number: H0WK4

Please use your "Service Tag" to look up your system configuration.

https://www.dell.com/support/home/us/en/04/product-support/product/latitude-e7450-ultrabook/configur...

Please post back with the "Heat-Sink" part number and the "CPU" model number???

Best regards,

U2


Microsoft Registered Refurbisher
Microsoft Registered Partner
Windows Operating System lifecycle fact sheet
Lifecycle begins when released and ends when no longer supported
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U2CAMEB4ME
3 Argentium

Re: Latitude E7450 heatsink not covering cooling surfaces

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@JS92 

Any update???

Regards,

U2


Microsoft Registered Refurbisher
Microsoft Registered Partner
Windows Operating System lifecycle fact sheet
Lifecycle begins when released and ends when no longer supported
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JS92
1 Nickel

Re: Latitude E7450 heatsink not covering cooling surfaces

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Thank for your response. The number is 7Q11F72. I did not find any of the information that you asked for on the link that you sent. I looked in the configuration and spare parts sections. Furthermore there is another thread here on Dell in which someone claims that it should be that way, for some reason only one chip should be covered. Here: https://www.dell.com/community/Laptops-General-Read-Only/E7450-heat-sink/td-p/5054994

I am starting to think that it should actually be this way, although it is very strange and looks wrong. Also I read these models are known for running hot so maybe it is designed that way. 

Best regards

//

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Re: Latitude E7450 heatsink not covering cooling surfaces

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@JS92 wrote:

Thank for your response. The number is 7Q11F72. I did not find any of the information that you asked for on the link that you sent. I looked in the configuration and spare parts sections. Furthermore there is another thread here on Dell in which someone claims that it should be that way, for some reason only one chip should be covered. Here: https://www.dell.com/community/Laptops-General-Read-Only/E7450-heat-sink/td-p/5054994

I am starting to think that it should actually be this way, although it is very strange and looks wrong. Also I read these models are known for running hot so maybe it is designed that way. 

Best regards

//


Hi @JS92 the information that you have linked to is correct and the explanation of why is explained in the post. The heatsink was redesigned so that the north bridge would not be making contact with the heatsink. Whereas the part in your system is correct, it's the original part that shipped with the system. The part number that you require for the revised heatsink is TW22Y.

Alan

DELL-AlanD
Social Media Support
#IWork4Dell
I'm based in the UK and I'm usually available Monday to Friday 9am-4pm GMT
Get Support on Twitter @DellCaresPro

U2CAMEB4ME
3 Argentium

Re: Latitude E7450 heatsink not covering cooling surfaces

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@Dell-Alan D 

Thank you for explaining the initial design flaw and the followup redesign of the heat sink.

Regards,

U2


Microsoft Registered Refurbisher
Microsoft Registered Partner
Windows Operating System lifecycle fact sheet
Lifecycle begins when released and ends when no longer supported
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JS92
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Re: Latitude E7450 heatsink not covering cooling surfaces

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Thanks, 

So I do have the correct heatsink? 

Thanks

//JS

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Moderator
Moderator

Re: Latitude E7450 heatsink not covering cooling surfaces

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@JS92 wrote:

Thanks, 

So I do have the correct heatsink? 

Thanks

//JS


@JS92 you have the original heatsink that shipped with the system. If you intend to replace it go with the redesigned version.

Alan

DELL-AlanD
Social Media Support
#IWork4Dell
I'm based in the UK and I'm usually available Monday to Friday 9am-4pm GMT
Get Support on Twitter @DellCaresPro

U2CAMEB4ME
3 Argentium

Re: Latitude E7450 heatsink not covering cooling surfaces

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@Dell-Alan D 

My warehouse tech's process around 100+ of these units a month.

Is there a quick way to tell if they have the poorly designed heat-sink without removing it to check???

And is there any exchange policy for the same???

Regards,

U2


Microsoft Registered Refurbisher
Microsoft Registered Partner
Windows Operating System lifecycle fact sheet
Lifecycle begins when released and ends when no longer supported
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tadream
1 Copper

Re: Latitude E7450 heatsink not covering cooling surfaces

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Hi all!

Thanks

 

 

 

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