I just did my old 5620. Changed the CPU from 1.8P4 to 2.4P4. See different already. I follow the setps and it was great. Great job on publishing this. I am going to wait for alittle bid to do the heat sink in my 5630. I use my 5620 for home usage and some gamming. My 5680 is for work only, don't like to mix work with pleasure. Again, thanks for the article.

great photos, made it clear as day. i had done all this stuff on desktop pcs before but was reluctant to do it on a "desknote" such as my 4780. upon opening it, i was a bit disheartened to find out that my heatsink is around 1/2 the size of yours... the other "half" of the duct is taken up by this little black box.. i dont know what it is. it would really be great if they could fully extend that heatsink so i wouldnt have to worry about this thing getting so hot i got it all apart, cleaned the goo off (quite a pain) applied my last scrapings of as3, bolted it all together, and prayed while i booted. so far so good.

my 5670 have been having over heating related problems lately... this silver idea sounds like a solutiion. i'll look into it thanks!

did you also notice how quite the is once the laptop is turned off, any solutions to quiet these fans...

just bought some artic silver online... i'm excited, can't wait to try this out!

Could you rephrase the question? I'm not sure I understand exactly what you're trying to say. My apologies.

I got around to pulling apart my rig last night to move it to AS. The heatsink was quite flat -- I was surprised by that as most heatsinks I've run across required lapping. The P4 heat spreader was another thing altogether. I wet lapped it successively with 400, 600, 1000, and 2000 grit sandpaper. Removed much of the silver coating by doing this (flat copper is much better than non-flat silver). Then blew some compressed air over the little hole and a bit of moisture exited around the PCB -- so I cleaned that up. It's good that it wasn't air tight as I didn't want to wait around after lapping to put stuff back together. Applied a very thin layer of AS with a saran-wrapped finger to both the heatsink and CPU, then dropped them into my system and gave it the smoke test. Success -- no smoke escaped the system

Temps running same as before, but with a much better cycle time on the fan (i.e., off for longer, on period shorter as well).

The method to improve the cooling system of the notebook is very good, but I'm not sure that everybody is able to use it. To simplify the job it's much easier just to open the first cover as it's shown at the original picture (3 screws) and use a "Dust Off" The versatile Cleaning Tool (I bought one in the nearest Fry's Electronics) with a compressed gas to clean up the cooling system of the laptop. It took about 3 minutes and the noise from the working laptop is much lower now, the cooler uses the lowest speed. Actually I used two bottles of gas because one bottle after 10-15 seconds of using becomes very cool and doesn't work very efficiently, I took a second one leaving the first one to warm up for a further using.

Dmitri.

All i have to say is that if you dont need to do this then DONT....
if your getting below 45c then i would not even do this..

Also what ever you do do not lap you CPU because it voids the warranty through Intel and sager. because if you lap off the serial number then its voided.

because i laped mine and I got it down to the copper to make it flat and to get the heat to tranfer better.. but i was getting around 48~51 idel and then after i was done no change. then later today i (man im a jack ass) was cleaning out my laptop and i took out the CPU and then i was trying to take off the heat spreder to get the little pices of copper out from the inside ( i found a web site on how to do this....) but when i finly got it off i noticed that it didnt look like the picture i was looking at it had riped the CPU Chip off. but i guess luckly i didnt get the CPU through sager. so i had to order a new CPU so, i was like this is a sign so i went with the 3.4 EE so i should get it wednesday at the latest and i hope i do. so in clnclution DONT LAP YOU CPU! or heat sink unless you need too!

Dude, nowhere in that guide does it say to 'lap' the CPU. It says clean it with cotton swabs and alchohol. Not lap it.

*shakes his head*

it says that you can lap it but be carfull and iv seen multipul sites on how to do it. but i know im a jack ass for trying to take it apart . but i if i didnt learn anythhing from it then i would be stupid for the whole thing . so i guess its not a total wast i did decide to get the 3.4 EE ( ) . i guess better then me then you can always think.

Really great post. I think this should maybe be copied into the review section or something.

Sticky anyone?

Great post! Having done this some myself, I have a couple of things to say. These fall into the realm of personal preference, and should be taken as such.

I use Goof-Off to clean the thermal paste off of the heat sinks. I find that it works a lot faster (and better) than rubbing alcohol. You need to be careful, however, and make sure that you are not using an oil-based cleaner! (I think Goof-Off is a Xylitol based cleaner, but I might be sniffing too much Goof-off.) To be safe, you should probably limit yourself to either rubbing alcohol or Goof-Off.

Also, I have used both plastic baggies and saran-wrap (plastic wrap) to spread the AS around. I like the saran-wrap better because it fits my finger better (more tightly), and provides more tactile feedback (think big mitten versus thin glove).

To use saran-wrap, tear off a bit of saranwrap, place your index finger in the middle of it, pull up the edges, and clamp them with your thumb and middle finger. Just be careful not to touch the outside surface of the wrap! (If people want a picture, I'll see what I can do - it's really quite simple and, when you do it, natural.)

Lens paper can also be used to remove the excess AS, but it does not work as well as the lint-free cloth.

Again, this is a great post! These are just slightly different manners to accomplish the exact same thing. Do what works best for you.

Good tips LeF'. I have yet another vote for a STICKY! It would be nice to keep all the big and little fixes near the top of the pond. The number of times I've seen folks kind enough to repeat yet again how to do an OS reinstall, how to flash the BIOS, how to clean fans, yada yada yada. Santa, may we have a STICKY for Christmas?

thanks for the excellent post gf. i did my 8890 with arctic silver 5 ($7.95 for a 3.5 gram tube). took about 40 minutes, of which about 30 was spent cleaning off the old thermal paste - especially the glue that was used to secure the pad to the heat spreader. i was surprised at how much dust had accumulated on the heat sink after only two months. i plan on checking and cleaning it about every three months or so from now on.

here is a link to the arctic silver site. pretty much the same info as gf has given us.

http://www.arcticsilver.com/arctic_s...structions.htm

so far, after a few hours of use, the fan kicks in about half as much as it did previously. i did notice that, judging from the amount of the original thermal paste on the cpu, there was only about 20% contact between the thermal pad and the cpu. i would not have tried this had it not been for gf's instructions.