cpu speed running on battery

[domestic705]

Hello!

i've bought my new FE21S about a week ago and i have a problem with keeping cpu speed full when running on battery.
i tried many solutions and nothing helped .

i've noticed the multiplier x11 drops to x6 and the cpu fsb is changing as well when running on battery.

on the original windows xp that came with the laptop the battery options for cpu control is greyed out so there is noway to change

but... after a fresh installation of windows and just a few drivers and utills , there are much more options on the power managment (which is very weird by itself) and it can be changed for 'performance' but still it does not affect the speed drop.

i read one of the answers concerning that issue saying 'intel designed it that way' ...but that sounds very weird to me ,first cuz i have a friend with the SZ series which is the same cpu and he does not have that cpu drop ,
and second cuz i bought this laptop for working with alot of cpu power ON battery ...

... and u can imagine what happens when i run a project that takes 50% cpu without being pluged in....u guess right - cpu drops to half - and the load raises to 100% and ...bang!

so plz if someone could give me an answer for that , and why does SZ series does not have this issue??

[domestic705]

plz help!!

[domestic705]

guys plz at least tell me who i can ask or where i can go
so someone could help cuz i bought this vaio a week ago
and all im doing is installing windows all day and loading images of ghost trying to solve this.

this is the only forum i know so....say something plz!

btw...speedswitchxp works for other vaio series's like FS but does not affect FE..

[kee-lo_]

Try VAIO-Link

[blackhiero]

try notebook control, i use it to stay on the full cpu power when i am on battery.

Just click best performance when you've installed it.

If you have further questions just pm me.

and for the link: google to notebook control (first hit i think)

[domestic705]

tried that:)

nothing seems to work on the FE series...

[kee-lo_]

I've been mulling this problem over, and the only thing I can think of is this; when you run at 3Ghz, heat builds up. This will make the CPU work at a lower rate, so that the cooling system can keep up with it, and not cause danger to your VAIO. So when you switch down to a lower frequency and multiplier, the system can work better as it's cooler.

This is how a scientist got his system to overclock at 4Ghz with a fridge compressor

[William]

i read one of the answers concerning that issue saying 'intel designed it that way' ...but that sounds very weird to me 

That was me sir,

Most, if not all, mobile Intel CPU's did this to conserve power when running on batteries.

I have not suggested it as the reason in this instance as I know nothing about these new Intel CPU's.

I did a quick trawl of the Intel site but never found anything meaningful.

It might be worth going to www.intel.com and reading the specs on your CPU.