TV Power Manager vs BIOS Power settings

[FrankS]

Hello all,

In my T500, are there any dependencies between TV Power Manager and the Power settings in BIOS Setup utility, particularly the Intel Speed Step and Adaptive Thermal Management settings? (I'm running the most recent versions of each)

In TV Power Mgr I recently reconfigured the CPU Speed settings to Adaptive (from Highest) for both AC & Battery, the machine runs much cooler. But after entering the BIOS Setup utility at boot time the machine heats up as if Pwr Mgr was still set to Highest. I suspect that could be corrected by changing the Adaptive Thermal Management setting in BIOS from Maximize Performance to Balanced, though I was surprised Pwr Mgr hadn't done that automatically.

Judging from what I've seen so far, it appears that a change in Pwr Mgr doesn't bring about an automatic change to BIOS settings. But I'm not sure if it works the same way in reverse, and want to avoid chasing ghosts if it doesn't

My question is if I change the BIOS setting then boot into Windows XP, will that cause a subsequent alteration in Pwr Mgr settings or cause Pwr Mgr to run differently than it did before the BIOS setting changed?

Regards,
Frank

[ausmike]

hi there
AFAIK, power settings in BIOS = universal (enable /disable; high or LOW etc)
this is there (as bse setup) in case users 'dont install' any other software. BIOS settings is "OLDer METHOD" and is what used to be (only) avalible to most laptops in past. However, now there are lots of 'tools & features' avalible in OS and 3rd party applications.. etc

Most of these apps (OS and or 3rd party) dont or will not (and often you dont want them to) modify the BIOS !!!

For my personal choice - I dont use many TVT apps ( thinkvantage apps in older thinkpads were great !) as now these apps are 'resource hoggs and often they casue conflicts and or nothing more then 'bells and whistles' etc ..

what I do = use BIOS = as much as 'factory defaults' ,, then use POWER MANAGER for rest of things. I also use the HARDWARE MANAGER to " further customerize" the pwoer settings for each 'hardware' eg ethernet adaptor = switch of 'wol'= wake up on lan feature etc .. etc

Shut off, sleep, etc feature I use TVT POWER MANAGER....

BTW = only TVT apps I use = POWER MANGER (with hotkey), SYSTEM UPDATE . rest of them I dont use and UN- INSTALL.....


Hope this helps
Cheers

[FrankS]

>this is there (as bse setup) in case users 'dont install' any other software

Thanks ausmike, for confirming what I thought about why my CPU was heating up more while in BIOS Setup utility, but ran noticeably cooler while in Windows. The BIOS setting was different from TV Pwr Mgr's.

>Most of these apps (OS and or 3rd party) dont or will not (and often you dont want them to) modify the BIOS !!!

I agree. But years ago I remember an app or two doing that. I also remember some apps depending on a BIOS setting but wouldn't/couldn't change it, it had to be changed manually. Didn't know if TV Pwr Mgr worked the same way or not and don't like poking around in the BIOS without knowing in advance what to expect.

Turned out well though. Setting Adaptive Thermal Management in BIOS to Balanced for AC keeps the machine cooler when running outside of Windows, and didn't seem to affect the way TV Pwr Mgr functions when running Windows.

Regards,
Frank