Plastic over laptop graphics card.

rannon

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May 24, 2014
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So about 6 months ago i bought a Lenovo G510 its was a top of the line spec for the g series at the time. so i have been regularly cleaning the dust from my heatsink every 2 months. My i7-4700mq under full load never exceeded 78 Celsius on the hottest core, considering i always used my laptop on a table and my room temperature varied from 25-29 Celsius. anyway, i also have a R7 M265 with 2GB DDR3 memory on a 64-bit interface. the graphics card under full load from furmark reached a max of 70 Celsius. also considerably cooler that i expected it to be.
Then decided to replace the OEM T.I.M since i wanted to overclock the memory slightly. since there was a huge bottleneck thanks to the 64-bit interface. So i removed the back cover of my laptop and pulled apart the HSF assembly of my CPU and GPU since they there interconnected at the fan...Anyways as soon as i pulled apart my HSF assembly, noticed that there was a plastic layed on top of my gpu except a small hole for the processing core to come in direct contact with the heatsink... Now because this is a new Mobile Chip for lenovo G series, i didn't want to take the plastic off just yet.. because i wanted to be sure that its not supposed to be there. so i cleaned the old thermal paste and applied Arctic Silver 5 on both the Chips.i assembled my laptop back together. I switched it on and loaded cpu burner and furmark simultaneously. and there was a instant 5 Celsius drop in max temperature loads for both my CPU and GPU. it has been about two and a half weeks since i did this since i waited for the cure time to finish. now under max load my CPU does not exceed 69 Celsius and my GPU maxed at 63 Celsius. so i decided i would over clock my GPU for more performance. in Furmark the stock clocks gave me 24 FPS at a set resolution.(stock core clock was 825Mhz overclocked to 960Mhz and memory clock was 900 overclocked it to 1120Mhz) then i launched furmark again and i maintained a steady FPS of 30.
And my GPU and went form 63 Celsius to 70 Celsius. which is where i was before basically.
So guys i am still concerned about that plastic cover....should i take it out? because I am pretty sure that its not supposed to be there. and do you guys think i did okay for temps? anything i should know just in case?
system specs are:-

Leonovo G510
i7-4700mq 2.4-3.4Ghz
R7-M265 2GB DDR3
8GB of RAM (1033Mhz 4GB and a Samsung 1333Mhz 4GB )
150W power supply
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Help is greatly Appreciated guys :)
and thank you for reading my post.
 
Solution
the plastic piece is to there to prevent short between the gpu and the heat sink leave it in. I have seen many a laptops with them. just make sure it is in the right place(not between the die and the heatsink)

COLGeek

Cybernaut
Moderator
Can you post a picture pf what you are referring to? It really sounds like some sort of protective device that should be left in place. With a picture, we should be able to help.

Also, have you looked for the system's service manual to see if that item is shown there as well?
 

rannon

Honorable
May 24, 2014
143
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10,710
i did not take any pictures COOlGeek, but i want to take my laptop apart so i can snap a few pictures to upload...but i need to find time to do so since I am studying for IGCSE Board Exams. Jacob, doesn't that impede cooling ...because it was on top of other chips as well.. and i overclocked my memory so i want to be sure that it wasent a assembly mistake.. because the reason i posted this thread is because nobody else has encountered this issue. have you ever encountered a problem like this? as in seeing plastic film on top of a installed laptop GPU?.. every video or picture i see not abolutly nothing in relation to see through plastic between the chip and the heatsink...i need this laptop to last atleast 5 years or untill i finish off college..(i am 16) my dad promised me a msi gt70 if i get As for my results :D
 
I've never seen it, but then I don't have a high end laptop, just a desktop and a laptop with some i3 and onboard graphics. It probably doesn't impede cooling, otherwise it probably wouldn't be there in the first place. If the plastic part is covering the GPU chip with the exception of the core itself, it may be a protective cover so that thermal compound doesn't get on the rest of the chip in the factory, as that can short the chip.