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Thermal Pads For Laptop Gpu And Capacitor

#1 User is offline   samuraijack 

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Posted 04 August 2013 - 04:34 AM

I had to change a failed motherboard for a HP Pavilion dv4 laptop. I am using the heatsink & cpu from the dead mobo.

I have applied Arctic Silver 5 to the CPU. Do I need to change the “brown pad” that sits on the GPU? Another “green” one looks like a pad/paste and sits on two blocks (capacitors?). Does that need to be changed as well?

What kind of replacements would I need and where should I look for them? HP provides pads & paste with its fan/heat sink/mobo/CPU spare parts kit but it’s very expensive.

From the HP Maintenance & Service guide:
“Each time the fan and heat sink are removed, the thermal material must be thoroughly cleaned from the surfaces of the heat sink and system board components: heat sink (1), processor (2), Northbridge clip (3), and capacitor (4). Thermal pads and thermal paste must be installed on all surfaces before the fan and heat sink are reinstalled. Thermal pads and thermal paste are included with all fan, heat sink, system board, and processor spare part kits.”

Thanks

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#2 User is offline   coastie65 

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Posted 04 August 2013 - 05:39 AM

Hi. When you are removing that, it is always a good idea to completely clean ( using alcohol ) the Thermal compound off and apply fresh compound ( sparingly ).

This post has been edited by coastie65: 04 August 2013 - 05:39 AM

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#3 User is offline   mjd420nova 

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Posted 04 August 2013 - 09:12 AM

No, those aren't capacitors, they are voltage regulators and do require "fresh" thermal paste. They have to do with the battery charging and discharging cuircuits and will get hot.
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#4 User is offline   waldojim 

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Posted 04 August 2013 - 11:55 AM

Technically, the answer is yes, they should be replaced. No, I do not know where to get them. And usually, I just clean the pads themselves, and reuse them...
"There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.'" -- Isaac Asimov

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#5 User is offline   Declan23 

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Posted 04 August 2013 - 07:40 PM

from technical point of view answer will be yes and it's better for you to replaced it.
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#6 User is offline   samuraijack 

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Posted 04 August 2013 - 11:43 PM

View Postmjd420nova, on 04 August 2013 - 09:12 AM, said:

No, those aren't capacitors, they are voltage regulators and do require "fresh" thermal paste. They have to do with the battery charging and discharging cuircuits and will get hot.

i appreciate the input. are voltage regulators the same thing as a VRM?
so, are you suggesting paste instead of pads? thanks
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#7 User is offline   samuraijack 

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Posted 04 August 2013 - 11:46 PM

View Postwaldojim, on 04 August 2013 - 11:55 AM, said:

Technically, the answer is yes, they should be replaced. No, I do not know where to get them. And usually, I just clean the pads themselves, and reuse them...

i reapplied the same pads. for the CPU i used a fresh coat of arctic silver 5. i am getting temps in the range of 50C to70C. fan runs pretty loud sometimes as well.
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#8 User is offline   waldojim 

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Posted 05 August 2013 - 03:20 AM

View Postsamuraijack, on 04 August 2013 - 11:43 PM, said:

i appreciate the input. are voltage regulators the same thing as a VRM?
so, are you suggesting paste instead of pads? thanks

On a desktop - yes. On a laptop, there is probably too large a gap in there to use thermal paste, you would end up insulating instead.

And I did find some thermal pads for you, if you were interested in changing that out:
http://www.frozencpu..._Pads_Tape.html
"There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.'" -- Isaac Asimov

Steam Machine: MSI 970A-G46, AMD Phenom 955 @ 4.0Ghz, 8GB Gskill ram @1600mhz, 128GB Plextor M5s, EVGA GTX 550Ti
Laptop: Alienware 14, Intel i7-4700MQ, 8GB DDR3 ram, Nvidia GTX 765M 4GB DDR5, Plextor M3 256GB SSD, 1080P IPS display, Killer GigE, Killer 1202 wifi
Hackintosh: Gigabyte H61m-HD2, Celeron G1610, 4GB Patriot ram @1333Mhz, Asus GT210, WD 1TB Black, Silverstone ES50 500watt PSU, OS-X Mountain Liion
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