bonya1423
1 Copper

E7450 heat sink

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Hi. 

I've bought used E7450 at ebay and was surprised by high temperature: 80 C at built-in diagnostics test. 

So I decided to change the thermal compound. When disassembled, I've noticed that heat sink doesn't cover both chips:

 

So I've thought that is the main problem, and bought another E7450 heat sink:

I've used fresh Arctic Cooling MX-4, which is one of the best thermal compounds ever. 

Unfortunately, temperature became higher: 90 C in built-in diagnostics test.

So my main question is: which heat sink should I use?

I'm not sure if the first one is factory stock.

And second question is: can I control the fan is some way? 

Thanks.

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3 Replies
hjerezano
1 Copper

RE: E7450 heat sink

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Hello

Did you solve the issue?

I own also the same model E7450 but using UBUNTU 16.10, temp reach some times 100C on high load!

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aghanem
1 Nickel

RE: E7450 heat sink

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I can tell you that the original one is the correct part. This is the latest version of this heat sink not the one you bought. Dell replaced mine due to overheating issues and the new one came with a heat sink that is not touching the northbridge (second chip) and Dell said that it's the best configuration to not touch the northbridge.

Please stick with the original part.

As for controlling the fan, yes you can install "Dell Power Manager" tool from Dell site. There is a Thermal options where you can choose the cooling mode (Quiet, Best performance ..etc)

bonya1423
1 Copper

RE: E7450 heat sink

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Thanks, aghanem.

You are totally right.

The only think I have to add:

original, "right" part is TW22Y (0TW22Y)

and full cover "old" one is H0WK4