Static noise z61m duo 2 gh

Message

AdrianPL · #1 Post by **AdrianPL** » Sun Dec 03, 2006 3:04 am

brand new z61m, not even month old...
so here is the deal, any help will be appreciated

when running on battery, some kind of static sound seems to be coming out from the processor area (left upper corner of the base)
very annoying and low pitch,
- does not seem to be the fan
+ when its sitting in BIOS no sound is emitted,
+ switching profiles does not help,
+ when the fan actually starts going i can hear it go, and the static is till there
- laptop plugged in, nothing... its silent, no static
its a duo 2 t7200, 3 year protection plan, should i be contacting lenovo/ibm about it ? its kinda a impossible to work in the environment like that, after a while it gets so annoying that i rather look for the outlet instead of working off the battery

thank you for your help

#2 Post by **K. Eng** » Sun Dec 03, 2006 9:43 am

Go into the system BIOS and see if there is a setting for USB speeds. If there is a setting, change it from legacy compatibility mode to high-speed mode. This trick works for Napa platform Dell systems -- it might work on the ThinkPad as well since the chipset is the same.

AdrianPL · #3 Post by **AdrianPL** » Sun Dec 03, 2006 11:52 am

when i put some load on the processor, prime95 pc-doc, its there but not as loud. maybe cause the fan kicks in, and is louder then statics,

illc · #4 Post by **illc** » Tue Dec 05, 2006 1:57 pm

I had this same problem. There is an easy fix. I wrote the solution in the "Noise" section of my review:

http://forum.thinkpads.com/viewtopic.php?t=30716

hsjC · #5 Post by **hsjC** » Wed Dec 06, 2006 11:29 pm

Doesn't disabling power management of the CPU decrease your battery life?
I have the same noise problem and want a real fix badly.

christopher_wolf · #6 Post by **christopher_wolf** » Thu Dec 07, 2006 12:32 am

Have you tried simply toggling the power settings for it through the Power Manager before trying to go after the CPU power managemet through the BIOS directly?

hsjC · #7 Post by **hsjC** » Thu Dec 07, 2006 1:18 am

I am actually a bit confused by all the seemingly identical settings.
There is the setting for CPU power management in PM, and also one inside BIOS.
Which overrides which?

I'll try disabling power management within the Power Manager. Same question tho, does it affect battery life?

Hehe, jsut a bit lazy to test it out.

Static noise z61m duo 2 gh

Static noise z61m duo 2 gh

it's the CPU power management feature...

Who is online