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The heat coming off of the CPU in the M003, while it is on, is noticeable. In the hope of setting the stage for increased speed and stability, I decided to see if I could apply some sort of low-profile cooling solution for the CPU. Here's what I came up with: ** Make sure that your M003 is OFF before you do anything!**1) My M003 looks like it will be deep enough to accommodate a low-profile heatsink. This thing was either a northbridge or GPU cooler. It's aluminum, with an anodized finish, and is only about 3mm thick. 2) After disassembling, and inverting the M003, we can see the WM8505 PC board (PCB). The CPU is the larger black chip. To the left of the CPU is the NAND chip. The CPU's PCB is offset from the mainboard, so we'll need to figure out how to mount the heatsink. The dimensions of the heatshnk will allow it to cover the WM8505, and the NAND chip. Have a look at the pic below, and let's consider how to mount this thing:
Here is what is in the pic:[list type=decimal][*]Super Glue[*]Non-conductive stand-off[*]Thermal compound[*]Metal shim (blade section from a boxcutter)[*]Heatsink[*]WM8505 PCB[/LIST]The screw tabs on the heatsink (5) give us some direction to go in. Looks like we could cement (1) one of the tabs onto the the PCB's connector strip. I will apply a makeshift stand-off (2) to stabilize on the other side. The standoff is actually just the gripper end from a small zip tie. Its dimensions work really well, and it's cheap! Now, let's examine the PCB. It's kind of hard to see from this angle, but the NAND chip is not as thick as the 8505 (6). We will need to find something to even things out, so that our cooling solution is level, and in full contact with both chips. We need a shim (4). The shim should be something that conducts heat. In this case, I've elected to use a section from a boxcutter blade, as it is virtually perfect in it's area and thickness for covering the NAND chip - and it's available. 3) Let's apply some thermal compound. I'm using Arctic Silver 5 - because that's what's here. Apply an even layer on the top of each chip that will come into contact with the heatsink.
4) Now, apply the shim to the NAND chip. Again, we do this to make sure that the heatsink is level when we mount it. Another layer of thermal compound goes on top of the shim.
5) The heatsink attaches nicely to the plastic of the PCB's connector strip. A couple of drops of Super Glue is more than enough. Position the standoff on the opposite side to stabilize. A drop of Super Glue on the main board, and one on top to catch the the other screw tab will attach everything on the other side. Avoid using too much glue, and place your drops away from visible circuits on the PCB and mainboard.
After the heatsink is applied, let the glue dry for 30 to 45 minutes. Remember to use the glue sparingly. A little goes a long way. Also remember that the glue is a liquid until it is completely dry. Do not turn your device on until the glue has had a good long while to dry - just in case!To be fair, this solution is not entirely perfect. It causes the back of the M003 to bow out slightly where the heatsink sits. It does close easily enough, though, and there is no noticeable adverse effect on the rest of the device. The back remains cool under normal use, and IMO that's very positive. This sets the stage for some potential overclocking, and perhaps some better performance. There are as many ways to do something like this as there are people to try it. This is what I did, and it works pretty well. Inexpensive, relatively simple, and it works. **As with any modification, do so at your own risk! Not responsible if you harm your equipment.**
 

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Please can you tell me how the thing comes apart. I took out the two screws can you give me some pics on that to do. Thanks You. Also before i take it apart can i upgrade the ram i would like to put 1gig of ddr2 ram to increase the speed. Thanks Again.
 

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Discussion Starter · #6 ·
@exraneo:Sorry, no. There is no available slot. The on-board RAM is soldered to the mainboard. Consider placing a swp file on your SD card to make use of virtual memory. Swapper 2 is a decent app for this.
 

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[quote name='Chip254;37120]@exraneo:Sorry' date=' no. There is no available slot. The on-board RAM is soldered to the mainboard. Consider placing a swp file on your SD card to make use of virtual memory. Swapper 2 is a decent app for this.[/QUOTE'] swapper during installation exhibition "please wait" for more than 10 minutes is normal? I will finish the installation.
 

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goroth;36265]I did it with euro cents coins both and cpu and ram said:
http://upload.wikimedia.org/wikipedia/commons/1/10/Euro_1cent.png[/IMG] and
Could you explain a little bit more?Did you use just coins or the heatsink as well?Can you explain how to proceed? Someone can explain where to get Thermal conpound?And i'm not clear about what is "Non-conductive stand-off.Many many thanks in advance
 

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Copper Coin is the heatsink. Use the therrmal compound so heat flows from the small CPU/memory area to the large coins. use a stand-off coin makes good contact with chips but does not short out the board.Thermal compound is sold where CPU in box is sold. (Often included in CPU&Fan boxes)You do not want to short coin to board. so Stand-off (spacer) should be wood/plastic/rubber something that will not act as a wire.
 

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Thank you mogrith, helpful as usual but please let me have some more clarifications (I'm a little bit dummy in these things).- Ok for thermal compound, I've got what it is, I think i can get some from my IT manager in my workplace.- I think i've understood that coins can take the place of heatsink, maybe i can use 2 cents on the larger chip and 1 cent on the smaller chip. Please correct me if i'm wrong.What I'm not sure about is the fact of the stand-off, I neither understand what it is nor where to put it and how.What makes me really scared is the idea of opening the M003, because i've seen that i need to lift the border, and I'm afraid of damaging the design.
 

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OK I've not done this my self and being in the USA don't have 1 and 2 cent euro coins. Just ask for the compound used when putting on a CPU fan. The compound is to transfer heat is is NOT a glue.You may not need the spacer or may need more than one. Because Coins are larger that the Chip they hang over.So you need something to support the coins that can be super glued to the board and the underside of the coins so they remain in contact with the chip and does not move.In the example in this tread the person with a heatsink used the head of a small cable tie. the squarish part that the tail is pushed thru. IT probably has them also.You just need something not metal a toothpick or matchstick can be cut to size or a piece of plastic spoon handle or what ever else you have. It just needs to fit tightly between coin and board and not be metal.
 

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Discussion Starter · #13 ·
@mogrith: Thanks for clarifying some of the points. I should have been more clear in my initial post. Your explanations are right [email protected]: Something else you might try is to use a GPU cooler like this one: Video Card Cooler : 2pin power - 55mm (screw holes) - eBay (item 250534886174 end time Sep-18-10 00:41:04 PDT)Remove the fan, and use a rubber mallet to smash the vertical parts flat. It's flexible metal, so the parts will bend straight easily. RE thermal compounds, I like Arctic Silver 5. It's mostly non-conductive, and is thick enough that it won't run everywhere when it gets warm. As well, Arctic Silver 5 is fairly cheap. Like the super glue, a little goes a long way.
 

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I have open m003 but I have scratched ( a little) the screen. I have contact dealextreme, pandawill for a spare foil but don't have this part. Ekengroup don't respond me.How can i make a foil ( maybe with border black ) ?
 

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Well I opened my M003 for other reasons but as long as I had it open adding a HEat sink was a good idea.I used a couple of smashed pennies. In the USA many tourist sites have a machine where you place a 1 cent piece in one slot and 2 25 cent pieces in another. Turn a crank and it smashes the penny into a thin oval with a drawing of interest on it.
Elongated coin - Wikipedia, the free encyclopediaAnyway I used two of these with some cut toothpicks, thermal paste and hot glue. Work fine. Instead of a hot spot. I now have a fairly warm area.
 

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mogrith;69499 said:
I used a couple of smashed pennies. In the USA many tourist sites have a machine where you place a 1 cent piece in one slot and 2 25 cent pieces in another. Turn a crank and it smashes the penny into a thin oval with a drawing of interest on it.
For the truly adventurous... try putting the pennies on a train track, you wont get the "drawing of interest on it" but you will have fun locating the coins once smashed.
 

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[quote name='alneri]I have open m003 but I have scratched ( a little) the screen. I have contact dealextreme' date=' pandawill for a spare foil but don't have this part. Ekengroup don't respond me.How can i make a foil ( maybe with border black ) ?[/QUOTE']Sunsky - Mirror Spare Parts for M003 (S-WMC-0210)
 

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Now the Mercury RC contains overclocking, is there extra overclocking available to units that have heatsinks installed? Anyone that has installed heatsinks on their M003 please provide feedback on overclocking. SetCPU allows most of us to run stable at 533mhz. Will adding heatsinks give us another 10% boost in CPU performance and will that also drop File System/ Memory scores even more? Strange that our quest for faster CPU resulted in slowing other factors down.
 

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I have noticed the back of my M003 clone getting rather hot after only a minute of activity. Does anyone think there is a risk to damaging internal components through normal use? I don't really want to poke around inside the tablet, but if its needed, I might consider it.
 
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