T430: Super-high Optimus power consumption

Hi,
I've got a brand-new 2349-D17 (T430 with Optimus graphics). I just installed Windows 7 Pro 64, installed the drivers from the matrices and wrote a detailled review over the last days.
In between, I did a little benchmarking to investigate the fan controls. I found the T430 to run very hot in the basic Optimus setting. At some point I tried changing the Graphics cards manually in the BIOS and compared three scenarios:
1) Nvidia graphics - OPTIMUS
2) Intel graphics - OPTIMUS
3) Intel graphics - BIOS hardwired
I got a pretty weird result:
Click me!
It basically shows that Intel graphics switchable by Optimus made the machine run A LOT hotter than Intel graphics hardwired on BIOS. That's weird, since Optimus with inactive Nvidia graphics should make the laptop run at about the same setting as Intel graphics only.
Now, since heat emission directly corrolates to power consumption, I decided to have a look at the battery drain. Here's what we got:
Click me too!
Now this is even more interesting. It basically shows that Optimus NOT using the Nvidia graphics drains MORE power than BIOS hardwired Nvidia graphics. Needless to say, it also drains a LOT MORE power than BIOS hardwired Intel graphics.
Since Optimus is actually supposed to REDUCE idle power consumption to a level nearly as low as BIOS hardwired Intel graphics, something is obviously wrong here. I hope it's a driver problem, yet I use the original Lenovo optimus drivers downloaded from the T430's driver matrices. I even installed the Windows updates from System update, yet that didn't help either.
So what can I do to fix this? Are there any other Optimus drivers I could try?
Solved!
Go to Solution.

Did you happen to have PowerManager open during any of this? According to this thread: http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/Thinkpad-T430-Optimus-power-usage/td-p/7819... the PowerManager program can cause the Optimus card to switch between idle & off. Idle causes power drain.
That thread also has instructions relating to installing the Optimus Tester Tools to determine the state of the card, and which programs is causing the GPU to be on. If you do not think that PowerManager was causing the problem, you could try installing the Optimus Tester Tools, and then let us know what it says. I like the "nVidia Optimus GPU State Viewer" with the "Show applications rendered by DGPU" checked. It seems to tell me what I need to know.
Let us know what applications you find are causing the nVidia card to be on.
When asking for help, post your question in the forum. Remember to include your system type, model number and OS. Do not post your serial number.
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help others with the same question in the future.
My TPs: Twist 2HU: i5-3317U Win 8 Pro, 4GB RAM 250GB Samsung 840 | T420 4177CTO: i5-2520M, HD+, Win 7 Pro x64, 8GB RAM, Optimus, 160GB Intel 320 SSD, Intel 6300 WiFi, BT 3.0 | T400 2764CTO: P8700, WXGA, Win 7 Ult x64, AMD 3470, 8GB RAM, 64GB Samsung SSD, BT, Intel 5300 WiFi | A20m 14.1" PIII 500 (retired). Monitors: 2x Dell U2211h IPS 100% sRGB calibrated w/ Spyder3.

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