To all ya people with the famous "FAN-ISSUES"

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ThinkPadMaster · #1 Post by **ThinkPadMaster** » Mon Sep 05, 2005 3:28 am

Hello everbody...

I just wanted to tell you what an IBM-Technician told me:

"The fan IS always on, because it has to. By the older ThinkPad-Models was only ONE fan for the CPU so it doesn't have to be ON all the time, NOW it is one fan for the CPU, GPU, Memory, HDD, Motherboard etc. So like that it is normal that the Fan is always on a low level"

What do you guys think about this opinion?

At the time, I did a re-installation of the OS (Win XP SP2) and it is running quiet as f**k.

Greetz from Switzerland

krma-thkpds · #2 Post by **krma-thkpds** » Mon Sep 05, 2005 4:00 am

I agree there is NO fan issue. My t43p runs quiet enough at comfortable 45°C in 23°C room. I have never ever had any problems with fan.

ThinkPadMaster · #3 Post by **ThinkPadMaster** » Mon Sep 05, 2005 4:06 am

When did you buy your T43p? Where are you coming from?

I don't know whats wrong with the people with Heat-Issues...

Which Power-Settings do you have, krma-thkpds on your PowerManager?
Are you working on the IBM-Preload?

greetz'

nrj45 · #4 Post by **nrj45** » Mon Sep 05, 2005 4:37 am

Once again there is no fan issue. The fan is triggered by other components.

When i boot my t43p, it will be more or less fanless during the 5 first minutes, he will then fan in a low rpm and 15mins after, he will increase its speed.

After a lot researches we found that the chipsets were triggering the fan (by fanning the chipsets with another fan, the internal fan will stop).
To limit the heat issue of the chipsets (chipsets because both north and southbridge are concerned), i made a copper plate that covers CPU/GPU/north/south. It's better but not perfect.

So i'm according to the IBM technician when he says that the t43p requires a constant airflow through the case. But the airflow is not enough since the chipsets DIE are too little to exhaust the heat they produce. The die of the northbridge is about 1cm2.

I'm pretty sure that IBM thought :
- What about putting a sonoma platform in a t serie chassis ?
- Oh no problem a constant air flow through the case should be enough to keep the chipsets cool

ThinkPadMaster · #5 Post by **ThinkPadMaster** » Mon Sep 05, 2005 4:49 am

Maybe you are expecting a little bit too much of your T43p. It is a high-end Notebook so it is normal that it gets warm.

when did you buy your t43p? Please tell me the power-scheme which you are using?

Mine is from August 2005. So maybe the lab of IBM have improved their fans and the cooling-system.

What do you think?

ThinkPadMaster · #6 Post by **ThinkPadMaster** » Mon Sep 05, 2005 6:51 am

NRJ45 can you tell me, why the heatsink of this TP on the fallowing Link http://www.8080.net/html/200504/b61415491.html looks different? Is this a self-modified Heat-Sink or whatever? because you can see a "Heat-Pipe" over the Northbridge or Southbridge (i dont know exactly)...

Greetz'

thyeh · #7 Post by **thyeh** » Mon Sep 05, 2005 7:27 am

ThinkPadMaster wrote:NRJ45 can you tell me, why the heatsink of this TP on the fallowing Link http://www.8080.net/html/200504/b61415491.html looks different? Is this a self-modified Heat-Sink or whatever? because you can see a "Heat-Pipe" over the Northbridge or Southbridge (i dont know exactly)...

Greetz'

It's a T43-1871 model that comes with integrated graphics in the northbridge. So my guess is that the heat sink is original from IBM, to cope with more heat from the northbridge vs a non graphics one.

ThinkPadMaster · #8 Post by **ThinkPadMaster** » Mon Sep 05, 2005 7:42 am

What do you think about putting the Heat-Sink from the T43-1871 in a T43p 2668? Would this Thinkpad (2668-H2G) running cooler after this modification?

Because after it starts cooling the northbridge too, and then maybe no more heat-issues.

What do you think?

thyeh · #9 Post by **thyeh** » Mon Sep 05, 2005 9:12 am

ThinkPadMaster wrote:What do you think about putting the Heat-Sink from the T43-1871 in a T43p 2668? Would this Thinkpad (2668-H2G) running cooler after this modification?

Because after it starts cooling the northbridge too, and then maybe no more heat-issues.

What do you think?

Gear idea. Where can we get the heat pipe assembly for the 1871? Or, it looks that its the same heat pipe (copper color) from the 2668 with an addition silver colored aluminum plate, so where do we get the additional plate?

nrj45 · #10 Post by **nrj45** » Mon Sep 05, 2005 9:46 am

I didn't know that they have such a cooling system... til now. Why the heck did they not include it in the t43p ?

BTW The date when i purchased my t43p is in my sig.

krma-thkpds · #11 Post by **krma-thkpds** » Mon Sep 05, 2005 5:08 pm

I bought mine in July. In my case too the fan starts after some 10 mins after boot when temp reaches about 45°C. And keeps like this forever if I don't put it under load.

Really don't think there is any fan issue.

O, and I usually use ThinkPad default power scheme.

ThinkPadMaster · #12 Post by **ThinkPadMaster** » Tue Sep 06, 2005 2:13 am

Does anybody knows where we can buy additional partz of IBM (like Cooling-Assembly)?

Becaue I will try the put the heatsink of a T43 1871 in a T43p 2668.

Maybe there will be a much better thermal control.

ThinkPadMaster · #13 Post by **ThinkPadMaster** » Tue Sep 06, 2005 3:11 am

If there is somebody who can tell me which FRU-Number this Cooling-Assembly of the T43 1871 contains, I will order it and replace it in my T43p 2668. An IBM-Technician told me that it is possible to replace it, BUT there will be a little space between the NEW cooling-assembly and the northbridge, but maybe I can bend it a little bit. So please tell me he FRU-Number.

Thanks...

Navck · #14 Post by **Navck** » Tue Sep 06, 2005 5:02 am

Copper plate sounds less tricky and lighter..

ThinkPadMaster · #15 Post by **ThinkPadMaster** » Tue Sep 06, 2005 5:04 am

Navck: what do you mean with "less tricky and lighter"? It will not be good or what? I am sorry for my worse english:-)

Navck · #16 Post by **Navck** » Tue Sep 06, 2005 5:06 am

Think about it
Whats lighter? A thin piece of metal, or big heatpipe assembly

ThinkPadMaster · #17 Post by **ThinkPadMaster** » Tue Sep 06, 2005 5:09 am

Logical: a thin copper plate.

But whats your opinion about putting this specially cooling-assembly from the T43 1871-15J in my T43p 2668-H2G?

thyeh · #18 Post by **thyeh** » Tue Sep 06, 2005 5:14 am

ThinkPadMaster wrote:If there is somebody who can tell me which FRU-Number this Cooling-Assembly of the T43 1871 contains, I will order it and replace it in my T43p 2668. An IBM-Technician told me that it is possible to replace it, BUT there will be a little space between the NEW cooling-assembly and the northbridge, but maybe I can bend it a little bit. So please tell me he FRU-Number.

Thanks...

I checked the following two document (hardware maintenance manual) and found the FRU number:

docu 39T6193 for T43-1871, the "fan assembly" is 26R8197

docu 27R0700 for T43-2668, the fan assembly is 26R7957

(Please double check the documents in case I mis-typed.)

But curiously I didn't found the addition aluminum plate that cover the northbridge in the figures in docu 39T6193. Maybe we need more info for the FRU number.

ThinkPadMaster · #19 Post by **ThinkPadMaster** » Tue Sep 06, 2005 5:28 am

Can you please tell me where you got those documents?

ThinkPadMaster · #20 Post by **ThinkPadMaster** » Tue Sep 06, 2005 6:06 am

Can somebody try the fallowing steps:

1. Go "BIOS"
2. Go "CONFIG"
3. Go "POWER"
4. Set "Adaptive Thermal Management" on "Balanced"
5. Set "Scheme for battery" on "Balanced"

Tell me what happens concerning the level of the fans. An IBM-Technician told me, that it should be "balanced" after:-)...

i am looking forward...

Greetz

#21 Post by **JaneL** » Tue Sep 06, 2005 6:49 am

ThinkPadMaster wrote:Can you please tell me where you got those documents?

Probably from item #8 in the FAQ.

ThinkPadMaster · #22 Post by **ThinkPadMaster** » Tue Sep 06, 2005 7:05 am

nonny: What do you mean with "Item #8" in the FAQ?

I was looking at it but didn't understand what you are meaning...

Does it concern something about the BIOS? I couldn't find something on it...

ThinkPadMaster · #23 Post by **ThinkPadMaster** » Tue Sep 06, 2005 7:14 am

nonny: i am sorry I didn't see the text above your message. I found the documents...

Thanks for your help...

-----------------------------------------------------------------

Can somebody try the fallowing steps:

1. Go "BIOS"
2. Go "CONFIG"
3. Go "POWER"
4. Set "Adaptive Thermal Management" on "Balanced"
5. Set "Scheme for battery" on "Balanced"

thyeh · #24 Post by **thyeh** » Tue Sep 06, 2005 7:16 am

ThinkPadMaster wrote:Can you please tell me where you got those documents?

I used the following:

http://www.ibm.com > support & downloads > downloads and drivers > type in "1871-11U" then click "GO" > Publications > Hardware Maintenance Manual (July 2005) - ThinkPad T43 (1871, 1872, 1873, 1874, 1875, 1876)

Try 2668-41U for 2668 series.

ThinkPadMaster · #25 Post by **ThinkPadMaster** » Tue Sep 06, 2005 7:25 am

thyeh: can you try this (it will not destroy your TP

):

1. Go "BIOS"
2. Go "CONFIG"
3. Go "POWER"
4. Set "Adaptive Thermal Management" on "Balanced"
5. Set "Scheme for battery" on "Balanced"

ThinkPadMaster · #26 Post by **ThinkPadMaster** » Tue Sep 06, 2005 7:41 am

Folks, listen:

We can't replace the cooling-assembly from the T43p 2668 by the assembly of the T43 1871. It is a mission impossible, because the one from the T43p 2668 is bigger than the other one, so it doesn't fit inside.$

BUT, what we can try is:

1. Go "BIOS"
2. Go "CONFIG"
3. Go "POWER"
4. Set "Adaptive Thermal Management" on "Balanced"
5. Set "Scheme for battery" on "Balanced"

After you did a RESTART, set the settings in the PowerManager to the minimum (on AC and DC too) and tell me what happens.

thyeh · #27 Post by **thyeh** » Tue Sep 06, 2005 8:40 am

ThinkPadMaster wrote:thyeh: can you try this (it will not destroy your TP ):

1. Go "BIOS"
2. Go "CONFIG"
3. Go "POWER"
4. Set "Adaptive Thermal Management" on "Balanced"
5. Set "Scheme for battery" on "Balanced"

Mine is T42-2373 and I didn't see items 4 and 5 in the BIOS. T42 and T43 is different is this regard?

ThinkPadMaster · #28 Post by **ThinkPadMaster** » Tue Sep 06, 2005 8:50 am

I've got a T43p maybe thats why the BIOS looks different.
But try the same steps after start-up your TP (Turn off, then turn on and press Fn + F1)...

Tell me what happens.

greetz'

nrj45 · #29 Post by **nrj45** » Tue Sep 06, 2005 10:45 am

I put the "adaptative" paramater and saw no difference concerning the fan.

ThinkPadMaster · #30 Post by **ThinkPadMaster** » Wed Sep 07, 2005 7:05 am

I was working until one o'clock in the night for getting ready my fans, without any results.

My decision is after 7 Dell Notebooks in one year (4 times Inspiron 9100 and 3 times Inspiron XPS Gen 2), which were all been replaced during the guarantee becaue of CPU-Overheating, and 2 ThinkPad T43p (which was replaced because of a Call-Back-Action), that I will buy a Apple PowerBook 17".

I don't want anymore this unstabel Windows Kernel, which is open for every Spywares and Viruses. I hope that with Appel I will get a stabel Operating System.

Greetz'

ThinkPadMaster

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