Welcome to Windrivers Barrywohl
Have you actually changed the ac adpater brick? They do die very slowly and supply the wrong power while it's doing it... so eventually killing your very expensive battery as well.
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Welcome to Windrivers Barrywohl
Have you actually changed the ac adpater brick? They do die very slowly and supply the wrong power while it's doing it... so eventually killing your very expensive battery as well.
Thanks for the suggestion.
I've got a brand new Lenovo Z61p with four different brand new ac adapters. My problem occurs with any of the four different ac adapters and occurs EVEN if the the ac adapter is not plugged into line current. I also have two different batteries (one six cell and one nine cell) and that doesn't make a difference either.
Then something in the power somewhere is miss reporting... do lenovo's have a page in the bios/setup for battery/adapters like dell do?
The Lenovo BIOS power section includes the following topics:
Timer Wake with Battery Operation
Intel Speedstep Technology
Mode for AC
Mode for Battery
Adaptive Thermal Management
Scheme for AC
Scheme for Battery
CDROM Speed
CPU Power Management
PCI Bus Power Management.
That's it. In any case, no BIOS settings should permit the whole machine to hang. There's nothing else in the BIOS about ac adapters or battery. In addition, when you plug in a disconnected ac adapter, it doesn't see "ac" but sees "battery" operation, at least in WinXPPro.
The power profile should automatically switch when power is available... but it is dependent on a number of drivers. If one of these are corrupt, it could cause the hanging. Are you sure your drivers - particularly chipset, video, speedstep and the drivers for system devices are up to date.
Does the scheme for AC and Battery in the bios match what windows has?
My system hangs intermittently when I plug in an ac adapter (even a cold ac adapter) even with no operating system, no hard drive installed, even when I just boot to BIOS Setup Utility.
Yes I am running the latest version of BIOS, Embedded Controller, Power Management Driver, Power Manager, Video Driver and Intel Chipset Driver.
Mysterious isn't it. I think some of the others in this thread have the same thing with other brands.
If this machine is brand new, then I assume you are returning to lenovo for service?
It has had one trip to Lenovo and got a new planar board. I've just today gotten in touch with some Lenovo ThinkPad engineers "back east" who want to have a look see. That's good news for me. It goes off next week.
Good to here - hope they fix it.