Need help from VPC-Z (New Z) users

Could someone with New Z run "Power Efficiency Diagnosis"

Start command prompt as Administrator (cmd.exe) and run:

Code:

powercfg -energy

It will generate energy-report.html

Could you please check if the HTML contains something like:

All of the sudden I am getting much less battery life, and I am trying to figure out what is causing the problem...

Thank you very much in advance!

 

it generated very long HTML do you want me to upload the files somewhere?

 

The report contains the following:

 

Thank you!

Hmm... then it's not ASPM... I guess this will end up in OS reinstall then...

My battery life dropped to ~3h 10 min on 100% which is much lower than before.

The only thing I could think of is that the second SSD I put with UltraBay III does not go to sleep.. and X25-E is known to consume lot of power. But still, even that cannot account for such drop...

Weird..

 

By the way, there are ASPM settings in advanced BIOS menu and, if I remember correctly, it is Disabled indeed.

 

Tried forcing ASPM ON from BIOS, but Windows will still disable it for some reason.

But, obviously, if that happens to everybody this is not the problem.

I have few more things to exclude but it will be PITA if the ultrabay and X25-E is the problem

 

Does your model come with the built-in Gobi broadband card? Have you checked to confirm that it is powered off?

 

Yes it comes with Gobi - but it disappears from the device manager and the WWAN connection manager says "no device found", so I assume it is off.

- I reinstalled all drivers & utilities, no help
- Flashed back original BIOS (without advanced mod) - no help

I guess there are only two more options:

1. X25-E in Lenovo UltraBay III is not going into standby
or
2. OS issue, in which case I can do a clean install

To eliminate X25-E issue I will connect it to external power supply via custom cable I made, and I'll check if the power consumption goes down.

 

OK, I think I figured out what is wrong...

CPU is constantly working @100% frequency (CPU-z reports 3 GHz!)

When I use PwrTest.exe (WinDDK tool) to see power management info for CPU I get:

Code:

Processor Performance States
  PerfStates:
    Max Transition Latency:  0 us
    Number of States:        8

    State  Speed (Mhz)    Type
    -----  ------------   ----
      0     2659 (100%)   Throttle
      1     2339 ( 87%)   Throttle
      2     1994 ( 74%)   Throttle
      3     1675 ( 62%)   Throttle
      4     1329 ( 49%)   Throttle
      5     1010 ( 37%)   Throttle
      6      664 ( 24%)   Throttle
      7      345 ( 12%)   Throttle

And this is ridiculous, there are no P-states in the list!!

I clearly remember CPU going down to 1.1 GHz before I reinstalled Windows... so I made some mistake somewhere... time to trace back my steps...