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Hello,
When I first got my Eee PC 1000H there was noticeable keyboard flex. While for me it didn't hinder the responsiveness of the keys, it did lessen the typing experience. I attempted the kitchen / tin foil mod, but found that it was a little tricky to do, and while it reduced the keyboard flex, it didn't eradicate it completely.
I've seen a number of people use plain old double sided tape, but I refuse to and advise against doing this because plain old double sided tape does not have good thermal conductivity.
When you first remove the keyboard on a new Eee PC, you'll notice that there are a few 'sticky squares' dotted across the metal plate (on most anyway like my Eee PC 1000H). At first I thought it was just ordinary double sided tape, but eventually upon searching for an alternative solution to tin foil and plain old double sided tape, I found a product which has is the same in thickness, texture and transparency to the sticky squares: thermal tape. Specifically, Sekisui #5760 Double Sided Thermal Tape. The thermal tape is 0.035mm thick and has a thermal resistance of 45C Rja (°C/W) - specifications can be found here: http://i-front.sekisui.co.jp/itape/html … f/5760.pdf .
Sekisui #5760 Double Sided Thermal Tape.
Correct me if I'm wrong (and apologies in advance), but I've only seen posts of thermal tape being used in mods other than to fix the keyboard flex issue. I purchased a 1" x 6" strip of this thermal tape from eBay for £0.99p. Received it today. I cut the strip lengthwise, then cut the two strips into small squares (much like the existing squares of thermal tape). Removing the top backing, I applied the squares on the metal plate in a grid pattern, then I gently peeled off the backings before re-attaching the keyboard. No more keyboard flex!
It appears that Asus sparingly applied thermal tape between the keyboard and metal plate, in some cases none at all, resulting in the keyboard flex. So why not just apply more thermal tape? Seems to be the best solution to me since you'll eradicate keyboard flex completely as well as retaining, even increasing, the area of thermal conductivity.
Last edited by Alvin.C (2008-09-30 7:50:07 am)
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Hi
I just registered with the forum.
Quite surprised nobody posted here.
I have one question though: why do you put small squares in a grid pattern instead of using the full stripe?
Thanks
Roger
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It's partly because there is a big keyboard flex thread already
, don't talk to them 
, just report them 
and let's get rid of them Offline
i tried the keyboard mod and it works but better way for me is using a 1mm thick gap-pad with 35 rockwell, that works very good. 1mm is not to thick in my opinion, feels good.
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Roger wrote:
Hi
I just registered with the forum.
Quite surprised nobody posted here.
I have one question though: why do you put small squares in a grid pattern instead of using the full stripe?
Thanks
Roger
Hello,
You could do. The only reason I cut the tape into small squares is because I only had a limited amount available.
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I used this fix on my 1000HE, and it worked perfectly! Thanks so much AlvinC, really appreciate your post! Warmest regards,
Anthony
Alvin.C wrote:
Hello,
When I first got my Eee PC 1000H there was noticeable keyboard flex. While for me it didn't hinder the responsiveness of the keys, it did lessen the typing experience. I attempted the kitchen / tin foil mod, but found that it was a little tricky to do, and while it reduced the keyboard flex, it didn't eradicate it completely.
I've seen a number of people use plain old double sided tape, but I refuse to and advise against doing this because plain old double sided tape does not have good thermal conductivity.
When you first remove the keyboard on a new Eee PC, you'll notice that there are a few 'sticky squares' dotted across the metal plate (on most anyway like my Eee PC 1000H). At first I thought it was just ordinary double sided tape, but eventually upon searching for an alternative solution to tin foil and plain old double sided tape, I found a product which has is the same in thickness, texture and transparency to the sticky squares: thermal tape. Specifically, Sekisui #5760 Double Sided Thermal Tape. The thermal tape is 0.035mm thick and has a thermal resistance of 45C Rja (°C/W) - specifications can be found here: http://i-front.sekisui.co.jp/itape/html … f/5760.pdf .
http://img181.imageshack.us/img181/8752/sekibo1dr0.jpg
Sekisui #5760 Double Sided Thermal Tape.
Correct me if I'm wrong (and apologies in advance), but I've only seen posts of thermal tape being used in mods other than to fix the keyboard flex issue. I purchased a 1" x 6" strip of this thermal tape from eBay for £0.99p. Received it today. I cut the strip lengthwise, then cut the two strips into small squares (much like the existing squares of thermal tape). Removing the top backing, I applied the squares on the metal plate in a grid pattern, then I gently peeled off the backings before re-attaching the keyboard. No more keyboard flex!
It appears that Asus sparingly applied thermal tape between the keyboard and metal plate, in some cases none at all, resulting in the keyboard flex. So why not just apply more thermal tape? Seems to be the best solution to me since you'll eradicate keyboard flex completely as well as retaining, even increasing, the area of thermal conductivity.
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Hope you don't mind me posting my experience fixing the kb flex here Alvin.C.
Thanks electricfx for your posts in another thread and pointing out this thread by AlvinC. My kb was absolutely driving me nuts as well due to the flex. I ordered some of the thermal tape from here: http://cgi.ebay.com/Sekisui-5760-Dbl-Si … tsupported (super guy to do business with) and wound up putting on two full pieces that were 1" x 8" all over the aluminum plate under my kb. While I was at it, I took some photos. I might add that I also cleaned the bottom of the kb as well as the bare areas of the aluminum plate with methyl alcohol to remove any oil or dirt from the finger prints that were put on at the factory.
Before (finger prints deposited by the factory)
After
The after photo above was before I removed the backing so it would show up better in the photo as to how much more I added.
On a side note, I took the liberty of snapping a photo of the under side of the kb label so I would have the info if the need ever arises that I may need to order another kb for some reason, like not being able to remove mine without destroying it. 
This kb is already available on Asus' website for $15 in case anyone is interested: http://estore.asus.com/shop/item.asp?itemid=4930
My kb is rock solid and a joy to type on now.
Last edited by srvctec (2009-04-19 8:00:53 pm)
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does it matter if the adhesive overlap one another?
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keljai wrote:
does it matter if the adhesive overlap one another?
I don't know if it would hurt anything or not. I didn't overlap any when I added it. The extra thickness may cause an issue since the mounting surface wouldn't be flat.
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I've bought some Sekisui tape from Chilled PC UK, a strip of 1" by 6" is £0.99.
http://www.chilledpc.co.uk/shop/product … cts_id=158
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I've used my 4 strips bought from Chiller PC UK (see above) as per the guides here. The only difference is that I've removed the old tape first and although this took a long time, I had a clean full surface to start with. As a result the keyboard feels very solid now, well worth the £5.78 (1st class next day delivery). Thanks to Alvin.C
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Has anyone tried to remove the keyboard after fixing it with the adhesive strips? The reason I ask is that I think I need to send my 900 to Asus for a Bios problem under warranty. I suspect that they may not like the keyboard being stuck down!
barrie
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thats why i take gap-pad for such things it has a glue effect too but not so much
Last edited by jtj (2009-05-31 12:11:53 pm)
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barriew wrote:
Has anyone tried to remove the keyboard after fixing it with the adhesive strips? The reason I ask is that I think I need to send my 900 to Asus for a Bios problem under warranty. I suspect that they may not like the keyboard being stuck down!
barrie
I'm sure they won't like it, but they should have designed the kb to be more solid from the factory so we wouldn't have to do this mod. If they say anything, I would just mention what I have here and hopefully they will understand how unusable it was before adding the tape.
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On a 1000HE, is there enough length to the ribbon cable that the tape can be applied without disconnecting the keyboard?
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SJMarty wrote:
On a 1000HE, is there enough length to the ribbon cable that the tape can be applied without disconnecting the keyboard?
I wouldn't try adding tape without actually removing the kb ribbon cable. One little slip or bump and the ribbon cable will most likely become damaged or worse yet the connector on the mother board will get damaged.
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http://www.sekisui-i-tape.com/eng/produ … _7675.html
Can you see any thermal induction on the specs? because I can not see anything else than that this is a tape for adhesion of foams 
Please correct me if I am wrong,but if this tape is just a simple tape,then we will have problem here,as the keyboard will loose its thermal connection with the alu heat sink..
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Just do a Google search for "sekisui thermal tape 5760" and it's one of the most recommended thermal tapes there is for overclocking and modding PCs. When I put it on, I could tell no difference between what I put on and what was put on by Asus at the factory- it looks EXACTLY the same, leading one to believe that it is what Asus used at the factory.
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