'Battery Alert' appears before the 'press 'ESC' key for Start-up menu.', however, ' Cooling Fan Alert' appears after 'press 'ESC' key for Start-up menu.'

Yes, it has. However, the first screen shot of the heatsink which is sold for $18.

However, other heatsinks having the same replace part number and sold for more than $26, such as the second screen shot, don't have the pad in clear view.

I don't think that the heatsink sold for $18 is better than others sold more than $26.

I have done

Zoom in on the photos from both suppliers

(Copy and paste both to a folder) and open / view each photo using Microsoft's Paint.exe and you can see it's a rubber pad.

However, pad is still not clear.

Zoom in on the photos from both suppliers

(Copy and paste both to a folder) and open / view each photo using Microsoft's Paint.exe and you can see it's a rubber pad.

I see what appears to be a black rubber pad that you outlined in your 1st screen shot.

Does your laptop have this black pad?

Thanks a lot,

1- when restart my notebook via Windows 7, then there is no error appears, however, the error only appears whenever I start my computer by pressing the 'turn on' button.

Try the following:

a) Turn on your computer using the "turn on" button. Do you see the error message Yes / No ?

b) Wait about 5 minutes and turn off (not a restart) the computer.

c) Immediately after the computer has been turned off in step b turn it back on using the "turn on" button. Now do you see the error messge

Thanks a lot,

a) Yes.

c) Yes.

2- But there are a lot of the same fan/heatsink with the same Spare part number:

Then since it is your money, pick the seller you feel is the most reliable in case there is a problem with the part they sent you and it needs to be returned.

http://www.amazon.com/PIN-CPU-Cooling-Heatsink-compatible/dp/B00HN1MVTC/ref=pd_sim_sbs_147_1?ie=UTF8&dpID=41LBUWOqPIL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=15BPT0CK3DBGFKTQ64HR

3- this one below was suggested by an expert HP community member

~~HP Pavilion DV6-6000 DV7-6000 Fan Heatsink 650797-001 641477-001 665309-001 with US **$26.99**~~

In my heatsink, there is a silver pad located in the part I circled in the images below:  

However, there are no clear sliver pads located in the images below. Do you see any?

So, however, since the first one is cheaper than the second one, I am confused  which one is better?

Thanks a lot,

1- when restart my notebook via Windows 7, then there is no error appears, however, the error only appears whenever I start my computer by pressing the 'turn on' button.

Try the following:

a) Turn on your computer using the "turn on" button. Do you see the error message Yes / No ?

b) Wait about 5 minutes and turn off (not a restart) the computer.

c) Immediately after the computer has been turned off in step b turn it back on using the "turn on" button. Now do you see the error message?

2- But there are a lot of the same fan/heatsink with the same Spare part number:

Then since it is your money, pick the seller you feel is the most reliable in case there is a problem with the part they sent you and it needs to be returned.

http://www.amazon.com/PIN-CPU-Cooling-Heatsink-compatible/dp/B00HN1MVTC/ref=pd_sim_sbs_147_1?ie=UTF8&dpID=41LBUWOqPIL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=15BPT0CK3DBGFKTQ64HR

3- this one below was suggested by an expert HP community member

~~HP Pavilion DV6-6000 DV7-6000 Fan Heatsink 650797-001 641477-001 665309-001 with US **$26.99**~~