T40/R50 pulsating fan: new embedded controller bios?

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stgreek · #31 Post by **stgreek** » Sat Jul 17, 2004 6:35 am

s0larian wrote:Do you use the cpufreq deamon in Linux? If this is deactivated or not installed, the fan runs all the time.

I have cpufreq activated and even when I select to run at 600Mhz the fan does the stupid pulsating noise, although the temp drops down to ~30C...

lophiomys · #32 Post by **lophiomys** » Thu Jul 29, 2004 1:21 pm

There is a new Embedded Controller Bios on IBM's Web Site
29 Jul 2004
1RHT70WW

...BUT at the moment it's still linked to the old version from 7/13 (or did someone hack the site

)

http://www-307.ibm.com/pc/support/site. ... MIGR-55029
http://www-307.ibm.com/pc/support/site. ... MIGR-55029

let's hope the solution for the pulsating fan will turn up soon...

vpn-user · #33 Post by **vpn-user** » Thu Jul 29, 2004 2:00 pm

Pulsating has gone. But FAN ist still running all the time, IBM just does not care. The links work now.

BTW: My IBM-Clone battery does not work anymore since version 3.02

...

eriqesque · #34 Post by **eriqesque** » Thu Jul 29, 2004 2:07 pm

vpn-user wrote:Pulsating has gone. But FAN ist still running all the time, IBM just does not care. The links work now.

BTW: My IBM-Clone battery does not work anymore since version 3.02 ...

If you are plugged in the fan should be running unless you are in a freezer. The fan is what keeps your CPU cool ya know.
If you want the fan to stop unplug.

vpn-user · #35 Post by **vpn-user** » Thu Jul 29, 2004 2:47 pm

This is totally rubbish. My CPU runs at 600Mhz, no matter if plugged in or not. Temperature is around 38°C. No active cooling is necessary here but FAN still runs. Intel Centrino CPU is capable of handling 100°C ya know...

eriqesque · #36 Post by **eriqesque** » Thu Jul 29, 2004 3:25 pm

Well then I guess IBM does it just to piss you off.
Edit: And just so you know it's not a "Centrino CPU" it's a "Pentium M"

RoadHazard · #37 Post by **RoadHazard** » Thu Jul 29, 2004 6:38 pm

Well, althought the CPU is capable of running at 100C but other components surrounding it are not. So keeping the CPU as cool as possible is always a good idea to prolong the life of your computer.

stgreek · #38 Post by **stgreek** » Fri Jul 30, 2004 2:28 am

eriqesque wrote:
vpn-user wrote:Pulsating has gone. But FAN ist still running all the time, IBM just does not care. The links work now.

BTW: My IBM-Clone battery does not work anymore since version 3.02 ...
If you are plugged in the fan should be running unless you are in a freezer. The fan is what keeps your CPU cool ya know.
If you want the fan to stop unplug.

When I take my X31 down to 600 Mhz the fan stops spinning and temp stays at 40C. My T40 fan doesn't although temp gets down to 29C. It has nothing to do with keeping the temps down, it is a manufacturing error and should be corrected.

eriqesque · #39 Post by **eriqesque** » Fri Jul 30, 2004 9:48 am

Well I did some testing on my T40. My fan comes on low when the temp gets to 41c and runs until its down to 35c then shuts off.
So maybe there is something wrong with your machines.

BlauAufmBau · #40 Post by **BlauAufmBau** » Fri Jul 30, 2004 10:11 am

Keeping the system as cool as possible shold be a good thing.

vpn-user: The fan is really not noisy, why mattering about it? I think, a cooler system will abolutly increase the lifetime of your thinkpad.

T40/R50 pulsating fan: new embedded controller bios?

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