~Toughbooktalk~ Rob - 630-300-8877

Operating Temps
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Author:  droppointalpha [ Thu Dec 04, 2014 10:45 am ]
Post subject:  Operating Temps

Looking for baselines to compare. My 29N is cooking at anything but idle and I already have thermal conductor (the pad stuff) on order as soon as I return from sea. Once I install the pad, looking to see if I get down amongst others or if it only partially solves the problem.
*F and/or *C are acceptable.

Idle Temp (5min after start):
Processor Intensive Program:
Idle Temp (after the above prior to shutdown):

Thank you.

Author:  glitch [ Fri Dec 19, 2014 9:19 pm ]
Post subject:  Re: Operating Temps

My question is will it fry itself?

my usb quit and I took mine apart (29CTKGBKM MK1). The tag says 2 cpu and it has them but one has no printing on it and is glossy black. I wonder if it cooked and its running on the other one. The computer is slow compared to my 19, the only thing I have to compare it to. If this sounds silly, I have no experience with cooked cpus, single or multiple.

I cant put it back together to do any checks the foam is crumbly and I will order some aftet I post this.

I will try to get temps if possible after I get it back together.

Author:  Shawn [ Fri Dec 19, 2014 9:55 pm ]
Post subject:  Re: Operating Temps

It has one cpu. The other is the video gpu

Author:  droppointalpha [ Sat Dec 20, 2014 1:45 am ]
Post subject:  Re: Operating Temps

OK.. replaced thermal padding.

For future reference:

Prior to pad replacement.
Idle Temp (5min after start): 56*C
Processor Intensive Program:94*C
Idle Temp (after the above prior to shutdown):78*C

Post Pad Replacement:
Idle Temp (5min after start): 46*C
Processor Intensive Program:62*C
Idle Temp (after the above prior to shutdown):54*C

Author:  Shawn [ Sat Dec 20, 2014 5:47 am ]
Post subject:  Re: Operating Temps

Huge difference..Good job..

Author:  glitch [ Sat Dec 20, 2014 6:44 am ]
Post subject:  Re: Operating Temps

What pads did you get? Are the ones that transfer 11 W/mK good enough?

Author:  Shawn [ Sat Dec 20, 2014 6:59 am ]
Post subject:  Re: Operating Temps

Yes the 11 W/mK are good enough.

Here are two great threads.

http://forum.notebookreview.com/panason ... -mods.html

http://forum.notebookreview.com/panason ... -pads.html

My original posts on this subject..

Actually the cf29 uses a putty that comes in a sheet form. I opened a parts cf29 and I took the thermal material off and rolled it into a ball.
Fujipoly is what I came up with to use.


150 means 1.5mm XPE is the material.
The XPE has a thermal conductivity of 11 W/mK. Which from what I found out is really high performance. Thermal conductivity of 6 W/mK is considered high performance.

http://www.frozencpu.com/products/11654 ... 8c487s1289

http://www.frozencpu.com/cat/l3/g8/c487 ... Page1.html

From my research, I found that the 6wmk putty pads are considered high perf. Considering that we are not overclocking these things, 6wmk should be more than enough. I think it is more of an issue to use the incorrect thickness or several different thermal materials at the same time. If someone uses a 6wmk putty then why use paste?
I used the 11wmk because I wanted to try it. It has the same color and consistency as the OEM putty found on my CF29E. I used some 6wmk .5mm pads under the heat rails and 11wmk 1.5mm on the 2 chips. The bottom may get a tiny bit warmer now.

I feel that there is probably not much difference between 6wmk and 11wmk(or 17wmk for that matter)on these machines. Be sure you use the correct thickness and application techniques. If the 6wmk works for water cooled overclocked I7's etc..then I figure it's more than enough for our 1.2-1.6ghz Pentium M's.
Panasonic designed an entire cooling system. I don't feel that the exact wmk specs for the thermal putty are that critical. As long as it is high perf and the correct thickness is applied properly I don't think the magic smoke will come out.
Since the original is a putty, and rolls it up into a ball and can be flattened back out, why not reuse it? I tested it on my parts machine and it crushed properly when I reseated the base of the unit.

Author:  droppointalpha [ Sat Dec 20, 2014 3:47 pm ]
Post subject:  Re: Operating Temps

Link to stuff I ordered.

http://www.frozencpu.com/products/11654 ... d=tVtPtKhU

Author:  Shawn [ Sat Dec 20, 2014 4:02 pm ]
Post subject:  Re: Operating Temps

That will work fine.

Author:  glitch [ Sat Dec 20, 2014 6:17 pm ]
Post subject:  Re: Operating Temps

Shawn, great links thanks, I really had not looked at that forum before.

I got the 100x15 blister pack, I didnt know if 6 W/mK was enough so I got the 11 W/mK.
I figured I could cut 2 15x15 pieces and have some left over to fix another ToughBook
(that I am currently looking for ;) )

With the temps listed above I have a good guide to go by, 20+ degree C is a significant change.

These passively cooled laptops are a new critter for me. I figure most CPU's and GPU's
(Shawn, thanks pointing out the difference) should have a temp sensing and throttle back system.
But with things misbehaving (USB dropping out) I just assumed the worst when I opened it. I didnt
even think about one being the gpu.

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