Yes, the AC plug LED illuminates when AC is plugged in, and
extinguishes when disconnected. I checked my performance settings in
the utility, and for AC power, settings were for maximum performance.

On Tue, 12 May 2009 17:07:04 +1000, Bob Larter
wrote:

prc1 wrote:
I have a Toshiba 1905-S301 laptop that had its power supply blown up
in a lightning strike. I've gotten a new replacement adapter, and the
unit seems to be in great working shape.

Except...

I noticed an oddity when downloading some patches off a wired ethernet
connection the other evening. When the laptop has just been turned
on, everything's great--surfing and downloading speeds are super.
Then, after a while, internet access s-l-o-w-s down. New websites are
slow to load, downloads that were flying begin to creep...

...until I unplug the AC adapter. Then the speeds pick back up, sites
load quickly, downloads are fast.

Before you start worrying about the electronics, check your power
management settings with the Toshiba utility program. It sounds like you
might have configured AC power mode with low power settings (eg; low CPU
usage). Also, does the AC plug LED light up when you plug in the
adapter, & turn off when you remove it?
** To respond, remove the crap from my addy... **