[HELP]Fan is always working...

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edmonton · #1 Post by **edmonton** » Sun Nov 28, 2004 7:20 pm

My unit is 2378CU1. I use a little software called MobileMeter to monitor CPU temperature and HDD temperature.

What annoys me is even the temperature is low (CPU 38, HDD 40), and CPU is running at 600MHz or so, the fan is always working and making noise.

I don't know if there is a way to adjust to condition at which the fan should start working.

Thanks!

unary · #2 Post by **unary** » Sun Nov 28, 2004 8:43 pm

Same here. It seems there is nothing we can do with it. However, it's really strange. As I know, not all T42 have this situation.

edmonton · #3 Post by **edmonton** » Mon Nov 29, 2004 12:05 am

Yeah. After reading some old posts, I know that if PowerPlay is enabled, the fan might be stopped.

My question is, how could we enable PowerPlay when running on AC adapter?

Thanks!

It's really annoying me since my roommate's iBook is always silent.

beeblebrox · #4 Post by **beeblebrox** » Mon Nov 29, 2004 9:40 am

Download Radlinker (Omega Drivers) or ATItool and turn the clock of the Radeon down. 110 to 160 MHz is a good value, you have to find the best frequency not to get artefacts.

Within a few minutes the fan will stop!!
110MHz is more than enough for all work except half-life, far cary and that stuff...

edmonton · #5 Post by **edmonton** » Mon Nov 29, 2004 12:22 pm

Thanks for your suggestion, I will give it a try.

Now I notice that it's quiet under 40 degree. Once it reachs 40, the fan starts to work and NEVER stop.

beeblebrox · #6 Post by **beeblebrox** » Mon Nov 29, 2004 6:31 pm

that temperature is only at the side of the CPU and useless. there is another thermal zone at the GPU, that is not accessible by Windows, but is read by the controller.
Turn down the GPU clock, and the fan stops, even when the CPU has 50°C

edmonton · #7 Post by **edmonton** » Mon Nov 29, 2004 7:19 pm

RadLinker made my system crashed for twice and I don't think I will still use that. Besides, I should set the value everytime I start the computer, huh?

I will probably give ATITool a shot.

beeblebrox · #8 Post by **beeblebrox** » Tue Nov 30, 2004 4:47 am

well, as I said, you have to find out the lowest frequency for your system . The ATI memory is quite sensitive for downclocking.

I use ATItool on my T40p and have a fully stable system with both 160 MHz (without fan) and powerplay enabled. You can set different profiles.

If you enable powerplay, beware that the GU runs on low voltage, and you have to play with 16/32bit settings and clock to find a working solution with crashing. Takes a few tests.

Remember, each GPU has different settings (powerplay, non-powerplay) etc.
Unfortunately the Tools only opitmize towards overclocking. Nobody thought yet about underclocking. Maybe that's a missing feature.

[HELP]Fan is always working...

[HELP]Fan is always working...

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