I have absolullly no idea if you need a fiz fom MS or from Inel ut at leas
it appears that one one of then has a but tha needs to be fixed.

"Super_Geek" wrote in message
...
Interesting, I just tried it in single core mode with speedstep still on
and
it does not do it, so that means it is the combination of Dual Core AND
Speedstep on at the same time BSOD's because it doesn't do it when you
turn
off one of those features in the BIOS. Obviously it is not acceptable to
run
in single core mode as I paid $1000 to have dual core, but it could lead
to a
fix. Any ideas now?

I know that Core Duo introduces a technology that allows the two cores to
run in two different power modes at the same time, perhaps vista only
knows
how to manage one? It works fine in XP, weird

"JW" wrote:

Does it happen if you disable one of the cores using the BIOS? Is the
BIOS
up to date?

"Super_Geek" wrote in message
...
I have a Dell 6400/E1505 laptop with 1.86GHZ core duo processor and when
I
unplug the power cord it BSOD's and turns off. I can then turn it on on
battery, and it runs fine on battery, plug it in and its fine, unplug
it
again and I get the same BSOD!

I've figured out that if I turn off 'Intel Speedstep' in the system
BIOS
it
works but I don't really want to leave it like this because battery
life
is
MUCH worse, like 2.5 hours instead of 4.5

Does anyone have any suggestions? Perhaps is there some sort of a
speedstep
driver that is needed for vista? I'm running RC1 Build 5600 but it did
it
in
build 5536 also!