What kind of wattage do you get on your T400?

Ive been looking all around these(and other) forums but I still cant find a reason why some people get 8-9 watts when browsing at low settings while others get 12-15. As you may have guessed I'm of the second category and I'd like to get as much battery life as possible. So if you could post you wattage when browsing(wireless on, bluetooth off) and your configuration as well as anything that might be related I would be very grateful.
Ive recently done a clean install to Vista Business x64 however all the power profile settings and drivers are there. My system config is:
Processor: Intel Core 2 Duo Processor P8400 (2.26GHz 1066MHz 3MBL2) 25W
Operating system: Genuine Windows Vista Home Basic
Operating system language: Genuine Windows Vista Home Basic US English
Display type: 14.1 WXGA+ TFT, w/ LED Backlight
System graphics: ATI Mobility Radeon 3470 with 256MB
Total memory: 2 GB PC3-8500 DDR3 SDRAM 1067MHz SODIMM Memory (2 DIMM)
Keyboard: Keyboard US English
Pointing device: UltraNav (TrackPoint and TouchPad)
Hard drive: 160 GB Hard Disk Drive, 7200rpm
Intel® Turbo Memory hard drive cache: Intel Turbo Memory 2GB
Optical device: CD-RW/DVD-ROM Combo 24X/24X/24X/8X Max, Ultrabay Slim (Serial ATA)
System expansion slots: Express Card Slot & PC Card Slot
Bluetooth: Integrated Bluetooth PAN
Wireless card: ThinkPad 11b/g Wireless LAN Mini PCI Express Adapter III
Wireless WAN: Integrated AT&T Mobile Broadband (3G)
Battery: 6 cell Li-Ion Battery

 

could people also please post their config/wattage in the thread? I would like to figure out what component draws the most power...

 

I've seen as low as 7, but normally get anywhere between 8-10, jumps to 13-15 when HD is accessed.

My system config is:
Processor: Intel Core 2 Duo Processor P8400 (2.26GHz 1066MHz 3MBL2) 25W
Operating system: Genuine Windows Vista Busines x64
Display type: 14.1 WXGA+ TFT, w/ LED Backlight
System graphics: ATI Mobility Radeon 3470 with 256MB
Total memory: 4 GB PC3-8500 DDR3 SDRAM 1067MHz SODIMM Memory (2 DIMM)
Keyboard: Keyboard US English
Pointing device: UltraNav (TrackPoint and TouchPad) + Fingerprint Reader
Hard drive: 80 GB Hard Disk Drive, 5400rpm
Optical device: DVD Burner
System expansion slots: Express Card Slot & PC Card Slot
Bluetooth: None
Wireless card: Intel Wifi Link 5300
Wireless WAN: None, but upgradeable
Battery: 6 cell Li-Ion Battery

 

simple, people get 11-12 watts on clean system installs or installing a system through the RDVD, such cd's are not made "exactly" to suit your system settings. The best power profile you get is tuned into your windows it comes with.

BTW 8.89 watts average here on Energy star...everything default
although I usually turn off the cd drive.

I have P8600 25w
3GB
7k320 hitachi upgrade
60% screen
and wifi on
superfetch off / same wattage with it on.

NOTE: if you are a vista user TURN OFF the "Gadget Bar", this thing draws insane amount of power due to constant processing.

 

as far as I know people did clean installs and are getting 8-9W power consumptions. And why would reinstalling from an rdvd get you different power consumption than original , as far as i can tell the rdvds are just an image of what lenovo installed for you. Also even if this is so, does anyone knows how to fix this? Ive tried the thing with editing the power schemes in the registry but thats no different from editing in the power manager and it does not help.

 

I get 10-12W browsing with XP Pro

The thing that ups the wattage is that the HDD never goes to standby in XP, esp with AVG and ZoneAlarm

I am beginning to wonder if I did the right thing not ordering Vista, but that would have cost me $50 for Turbo Memory and $70 for 3 vs the 2Gb I have now, altogether $120+tax(NY!)=$130 more.

Even with no browsing, HDD activity at minimum, before having installed antivirus and firewall, I never got better than 8.5W

 

i noticed there is something accessing the hard drive every few seconds but the access seems so minor I would expect the stuff to be cached by turbomem however the accessing never stops, is there any way to fix this?

 

It is probably the optical drive. There is a thread on here about it.
http://forum.notebookreview.com/showthread.php?t=300595&page=5
Set your optical drive to power off when inactive in the Power Manager and when it powers off, the HDD light will stop flashing every second.