L-shaped thermal pad

[lti]

I bought one of these for my laptop:
http://www.digikey.com/product-detai...1-G-ND/3260501
I thought the picture was just a representative picture for the entire series of thermal pads, but it really is L-shaped. What would need that?

[mockingbird]

Re: L-shaped thermal pad

You can do better than silicon elastomer for laptops. There's a material that is soft and malleable which conducts heat far better in my opinion. How much space is there between the ehatsink and the northbridge?

[lti]

Re: L-shaped thermal pad

What other materials are there? I saw some better pads on Digi-Key, but they cost almost a dollar more and were still silicone elastomer. I didn't want to spend as much as I did on this weird pad.

It's actually on the CPU. The laptop is very old, and the CPU probably doesn't use much power. There appears to be a 0.5mm gap. The 1mm thick pad is thicker than the original.

[budm]

Re: L-shaped thermal pad

You need to look at Thermal conductivity: the higher the number the better.
Thermal Resistivity: the lower the number the better.
http://www.timtronics.com/
http://www.timtronics.com/timgap.htm

[mockingbird]

Re: L-shaped thermal pad

The best stuff I've seen so far is fujipoly. I bought the pink one from eBay, but I don't see it listed anymore...

[cheapie]

Re: L-shaped thermal pad

How much space is there between the ehatsink and the northbridge?

What's an e-hatsink? Will it keep my hat cooler?

[lti]

Re: L-shaped thermal pad

I was going to get something like this, but the higher thermal conductivity pads cost more than I was willing to pay for such an old laptop.

[dj_ricoh]

Re: L-shaped thermal pad

woow. i`m the only one who use copper plate? i cut the plate in the shape i need(headsink shape) for 2 reasons:
1. press the chip back so i don`t have to reflow again (few come back)
2. Believe it or not i got a dv9000 for free and i reflow the video card and use a lot of copper for video card,memory and chipset and the little b...ard stays at 45C.

honestly prefer my method that is not a industrial method to reduce costs.

Copper FTW!

[mockingbird]

Re: L-shaped thermal pad

I was going to use copper for my HP G56, but the angle at which the heatsink touches the northbridge isn't even. I needed something soft that could compensate for the difference in height, that's why I used fujipoly.

[dj_ricoh]

Re: L-shaped thermal pad

I was going to use copper for my HP G56, but the angle at which the heatsink touches the northbridge isn't even. I needed something soft that could compensate for the difference in height, that's why I used fujipoly.

yee but i have many types from 0.4mm ->1mm so i can compensate the difference in hight. i rly like it i swear its like making a sandwich in there

[lti]

Re: L-shaped thermal pad

That Fujipoly stuff looks nice.
http://www.frozencpu.com/products/17...tl=g8c487s1288
http://www.frozencpu.com/products/16...tl=g8c487s1288

The higher thermal conductivity stuff might be good since the fan in this laptop never shuts off once the CPU gets hot enough for the fan to start running. Maybe that stuff will keep the temperature low enough for the fan to stop. I might try one of the Fujipoly pads.

I was thinking about making a copper shim, but I don't know where to get copper sheets and I didn't think it was worth it for this old laptop.

I'm still wondering what that L-shaped pad would be used for.

[mockingbird]

Re: L-shaped thermal pad

yee but i have many types from 0.4mm ->1mm so i can compensate the difference in hight. i rly like it i swear its like making a sandwich in there

How do you compensate for the difference in height if the angle of the heatsink is crooked?

That Fujipoly stuff looks nice.

So far so good... It has a playdough consistency, so the only drawback to it is that it may not stand up well if you disassemble the heatsink often... It's not as inexpensive as silicon pads, but considering it's a one time thing, it more than pays for itself.

[dj_ricoh]

Re: L-shaped thermal pad

How do you compensate for the difference in height if the angle of the heatsink is crooked?

like i said i got a dv9000 from dead and i copper shim the sucker that he is sitting 50C medium temp.
i got a dv6000 tomorrow to do so i will film that part only with the copper so i can edited in this weekend