T42 and fan issues

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Mark01 · #1 Post by **Mark01** » Sat Jun 05, 2004 1:20 am

I'm currently considering to purchase a t42 and was wondering if anyone (t42 owners) can confirm the t41 fan issues are fixed in t42?

mark01

vpn-user · #2 Post by **vpn-user** » Sat Jun 05, 2004 4:35 pm

The T42 suffer from the same FAN issues all R50/51, T40/41 and their p versions have since they all have the same motherboard, bios, embedded controller and fan.

Only the Pentium M (Dothan)differs from the older models. The "new" 15" T42 are just a simple design copy of the R50 series.

I don' t think IBM is going to fix that ever, they just relabel their stuff and dont care about this problem and that really sucks.

Nabeel · #3 Post by **Nabeel** » Sat Jun 05, 2004 6:39 pm

What fan issue?

Mofongo · #4 Post by **Mofongo** » Sun Jun 06, 2004 12:11 am

Mine runs just fine. I hardly ever even hear the fan...although I know it must be working because hot air is blowing out of the side.

Mofongo

andyk · #5 Post by **andyk** » Sun Jun 06, 2004 12:20 am

vpn-user,

Please check the facts before you post. And by the way, 15" T42 is DIFFERENT from R50/R51.

Even different T41's have different fans. I didn't check the rest of your statements. You may wish to edit your post so as to maintain your credibility. Thank you.

http://forum.thinkpads.com/viewtopic.php?t=506

vpn-user · #6 Post by **vpn-user** » Sun Jun 06, 2004 3:21 pm

andyk wrote:vpn-user,

Please check the facts before you post. And by the way, 15" T42 is DIFFERENT from R50/R51.

I did. The T42 use the same technology (BIOS, Motherboard, FAN) as the T40/41 and R50/51. Look at IBMs website and check for yourself. The T40/41/42 even share the same spec pages.

Sure, there are different kinds of FANs (Short ones, Long ones and Long ones for ATI M10 GPU), but they all have the same bug because they all get controlled by the same BIOS.

The fan stupidly runs all the time when on power from the mains and blows out cool air, even when the machine is idle. While doing so, it accelerates every 5 seconds once in a while which sounds like a mosquito flying around your ear

.

Check an ACER TM290 and you will see that Centrino notebooks dont need a fan that runs all the time - a thing IBM does not care about: noise.

andyk wrote:Even different T41's have different fans. I didn't check the rest of your statements. You may wish to edit your post so as to maintain your credibility. Thank you.

LOL. Nice try to start a flamewar.

risolutore · #7 Post by **risolutore** » Sun Jun 06, 2004 3:44 pm

36db someone did personally measure it?

andyk · #8 Post by **andyk** » Sun Jun 06, 2004 3:45 pm

Mark01,

Here are some recent discussions about fans that are of "the same technology"

http://forum.thinkpads.com/viewtopic.php?t=485

http://forum.thinkpads.com/viewtopic.php?t=628

vpn-user · #9 Post by **vpn-user** » Sun Jun 06, 2004 3:47 pm

You didn' t look at the specs and part numbers, didn' t you?

cynic · #10 Post by **cynic** » Sun Jun 06, 2004 4:56 pm

I have a T40p and if I keep the processor on adaptive (while hooked to AC) the fan rarely comes on.

If I work with it at highest, the fan comes on about 10 minutes in but then will shut off and restart about every 25minutes.

Either way it is very silent.

Oh, BTW, I work at a music studio here in Los Angeles where silence is golden. IBM seems quite concerned about sound-levels and has treated it appropriately. What Acer does is not my concern because depending on the Pentium M chip, the graphics card and the thinness of the laptop, the cooling methods will be determined.

geobel · #11 Post by **geobel** » Sun Jun 06, 2004 5:15 pm

I agree with vpn-user. All T4x fan cycle. Fan is just an electric engine that accepts voltage given by bios and reports back rpms. T41p fan cycles less loud than other fans and therefore partially solves the problem. T4x fan can be controlled by software as evident from IBM fan test module for PC-doctor. We however apparently lacking here people with sufficient programming skills and/or time to disassemble this module and create fan control utility. Dell users are more lucky as they have I8kfanGUI http://www.diefer.de/i8kfan/index.html

Gosha

#12 Post by **jdhurst** » Sun Jun 06, 2004 7:06 pm

I'm more or less in the Bill Morrow camp (just lucky, I guess). My T41 fan runs smoothly at low speed much of the time. Barely noticeable. Under high disk load (defrag or some such), the machine will heat up and the fan will cycle to high for a while, and then throttle back. It does not cycle as some users report. Last night, when all was quiet, nothing was stirring, not even a mouse, the machine was idle, and the fan switched totally off. ... jdhurst

T42 and fan issues

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