Help with modding laptop motherboard to fix overheating for home theatre

Laptop: DELL XPS M1530
Mobo: DELL 0XN71K (IMAGES SHOWN BELOW)

Problem: CPU Overheating! I have tried everything by the book. Dust free clean up, removing heatsink, 99% IPA wipe down, new thermal compound, etc. Did the same again when purchasing a new heatsink. On top, I ran a fresh install of Windows with just some basic apps installed. Though there definitely has been some improvements, the idle temps are now 55-70 degrees Celsius. Just playing a movie with an HDMI to a 42" screen (1080p) is enough to send the temps to the 90s-100s. The highest witnessed: 107 degrees. I believe the temps go even more higher, as the laptop powers off, though less frequently then before.

Possible fix: I placed an intel stock heatsink on the CPU using thermal pads just to see what would happen (a quick test only). Plugged in a cheap spare usb fan over the heatsink. Results are: Idle in the 40s and with the same movie played via HDMI to tele, 60-70s. Made a massive difference! Left the movie on until it finished (about 1 hour 30 mins), temps stayed under 75 degrees, hanging mostly between 60-70. I believe I can improve the temps further with a permanent fix using thermal compound and somehow secure the heatsink on the mobo.

Since the M1530 is a spare machine and still runs great, though I have Dell XPS 17 too and currently working on my first epic PC build, I am now looking to convert my old laptop into a desktop home theatre. I already have a case in mind to build from scratch and have all the tools needed to make something aesthetically pleasing.

Advice needed:
1. What type of vertical heatsink would you recommend for the laptops CPU?
2. What type of heatsinks for the GPU and chipset?
3. I have spare 120mm and 140mm fans from my progressing PC build , is it possible to use the mobos PWM header to connect with this fan? The header is tiny and takes a 3-pin connector from the heatsinks DC fan which measures 4mm in length. Though this may be a proprietry dell connection, are there any adapters available or can I solder 120mm fan wires to the stock fan connector cables? Ideally with 3 heatsinks placed on the 3 three chips and one large fan placed above, I think it might work to keep everything cool. What do you think?
4. I have considered wiring in a fan/s via USB, but I don't want the fans running constantly at a static speed (5v's of power). If (2) is not possible, are there any alternative methods?
5. Just a quick one: Are copper shims recommended, can I throw some of these in the mix?


MOBO IMAGES:

http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/M1530%20mobo.jpg

http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/Chip%20height.jpg

http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/Fan%20Header.jpg
Reply to saas1980
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More about modding laptop motherboard fix overheating home theatre
  1. saas1980 said:
    Laptop: DELL XPS M1530
    Mobo: DELL 0XN71K (IMAGES SHOWN BELOW)

    Problem: CPU Overheating! I have tried everything by the book. Dust free clean up, removing heatsink, 99% IPA wipe down, new thermal compound, etc. Did the same again when purchasing a new heatsink. On top, I ran a fresh install of Windows with just some basic apps installed. Though there definitely has been some improvements, the idle temps are now 55-70 degrees Celsius. Just playing a movie with an HDMI to a 42" screen (1080p) is enough to send the temps to the 90s-100s. The highest witnessed: 107 degrees. I believe the temps go even more higher, as the laptop powers off, though less frequently then before.

    Possible fix: I placed an intel stock heatsink on the CPU using thermal pads just to see what would happen (a quick test only). Plugged in a cheap spare usb fan over the heatsink. Results are: Idle in the 40s and with the same movie played via HDMI to tele, 60-70s. Made a massive difference! Left the movie on until it finished (about 1 hour 30 mins), temps stayed under 75 degrees, hanging mostly between 60-70. I believe I can improve the temps further with a permanent fix using thermal compound and somehow secure the heatsink on the mobo.

    Since the M1530 is a spare machine and still runs great, though I have Dell XPS 17 too and currently working on my first epic PC build, I am now looking to convert my old laptop into a desktop home theatre. I already have a case in mind to build from scratch and have all the tools needed to make something aesthetically pleasing.

    Advice needed:
    1. What type of vertical heatsink would you recommend for the laptops CPU?
    2. What type of heatsinks for the GPU and chipset?
    3. I have spare 120mm and 140mm fans from my progressing PC build , is it possible to use the mobos PWM header to connect with this fan? The header is tiny and takes a 3-pin connector from the heatsinks DC fan which measures 4mm in length. Though this may be a proprietry dell connection, are there any adapters available or can I solder 120mm fan wires to the stock fan connector cables? Ideally with 3 heatsinks placed on the 3 three chips and one large fan placed above, I think it might work to keep everything cool. What do you think?
    4. I have considered wiring in a fan/s via USB, but I don't want the fans running constantly at a static speed (5v's of power). If (2) is not possible, are there any alternative methods?
    5. Just a quick one: Are copper shims recommended, can I throw some of these in the mix?


    MOBO IMAGES:

    http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/M1530%20mobo.jpg

    http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/Chip%20height.jpg

    http://i1202.photobucket.com/albums/bb371/SASfashion/DELL%20M1530/Fan%20Header.jpg


    Ok first please use another picture hosting site photobucket will make us pay 399 just to view your photos. Getting that out of the way now the laptop I know about the temps issue with these laptops I still use my vostro 1510 it has a T7100 same year basically and my vostro always runs hot the T7100 is a 1.8ghz cpu and fan running a full throttle it will stay around 75-60c and the 8400m gs runs hot too even when I put new pads and thermal paste. The laptop you have I think has the T9500 and that gonna run hotter since the clock speed higher 2.6ghz and these core 2 duos don't run cool at all, and you probably watching 1080p videos and I think you have dedicated graphics and the laptop model you have came with the 8400m gs or the 8600m gt, and when they are playing hd video they are gonna run hot also and the 8000m series are well known for running hot and dieing, and really this model of the xps was known for running hot. The only way I can say to fix it even tho you even replaced the heat sink And if I was able to see the pictures that would be really helpful, Try using high end thermal paste like arctic silver 5 and putting new pads that are also good, and if you can change the cpu to something that lower clock speed like a 2.2ghz that would help alot also. And I know you was talking about putting that laptop board in a computer case to be honest you better off just build a sff core 2 quad system it would be cheap and take less time or buying a used optiplex that you can get for 50-60 dollars that already has windows 10 or 7 installed already, and slapping a hd 5450 and put a q6600 in it, then it will stream/play 1080p video with no issue. And when most people build a desktop with laptop motherboard they use the stock heat sink because to put a desktop cooler on a laptop you will have to build your own mounting bracket and figure out how to cool the gpu and the north bridge chip.

    If you change the picture host and I see it, I will replay about something, because I'm going in blind right now typing this.
    Reply to Pentium4User
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