Hi Sandra,
If it's an intermittent electrical short or open, then the cpu fan will
sometimes operate for a time, sometimes not at all. Most modern motherboards
have a failsafe switch built in that shuts the system off if an overheating
condition exists. This is to prevent damage to the very heat-sensitive
processors commonly used. Laptops, to conserve power, generally only run the
fans when heat nears the limit, and it doesn't take long for the cpu to
reach this point. Yours may be failing to kick on when needed, it could be a
sensor, capacitor, crack in the solder trace, etc. In any case, if this is
what is happening, it's a hardware issue.
If Vista is indeed shutting the system down intentionally, it should show
something in the Event Viewer's system log. There are scattered reports of
Vista being the cause of shutdowns, but keep in mind that users generally
blame the operating system regardless of what the problem really is. The
only time I've seen the operating system (any, not just Vista but any flavor
of Windows or Linux) intentionally causing a shutdown of the system is when
it is infected with a virus that does it by design.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"Sandra" <Sandra@xxxxxx> wrote in message
news:F83E708C-CC41-432E-9195-56C09602153D@xxxxxx
> Hi Rick,
>
> Do you really think it's possible for a laptop to overheat after 10
> minutes?
> I ask that question in all sincerity because I just don't have that much
> experience with them. I know that if there's a lot dust or pet hair around
> it's easy to clog vents and intakes, but the laptop hasn't been exposed to
> either. When not in use, it's tucked away in a computer bag. We also have
> a
> 7-year-old PC in the same room running XP - have never had a moment's
> problem.
>
> It's also odd that, on a good day, I can run it for 5 or 6 hours without a
> problem. The fan comes on as needed and works fine. If it's actually an
> overheating problem, wouldn't it be more consistent than that (i.e.,
> always
> shutting down after a short period of time)?
>
> The reason I'm leaning toward a software problem is that I'm encountering
> more and more people (as I begin asking questions) that have the same
> problem
> with Vista. Not all have laptops.
>
> I would take it in for service, but as I mentioned to Mike, we're living
> in
> a fly-in community (no roads and 1 store) until June. Until then, my only
> hope is to try and find a solution online.
>
> Thanks for your help!
>
>
>
> "Rick Rogers" wrote:
>
>> Hi Sandra,
>>
>> I doubt it's the operating system (Vista), as the symptoms are screaming
>> "hardware failure". FWIW, I've got three systems in my house running
>> various
>> versions of Vista, all very stable including an HP laptop (from which I
>> am
>> remoting to my x64 Vista machine where this message originates right now)
>> and two custom builds. None of my systems shut down unless I initiate it,
>> and that's pretty rare as I run all my systems 24/7. Most (actually
>> virtually all) of the systems that have crossed my workbench with
>> spontaneous shutdown issues have been heat-related.
>>
>> --
>> Best of Luck,
>>
>> Rick Rogers, aka "Nutcase" - Microsoft MVP
>> http://mvp.support.microsoft.com/
>> Windows help - www.rickrogers.org
>> My thoughts http://rick-mvp.blogspot.com
>>
>> "Sandra" <Sandra@xxxxxx> wrote in message
>> news:77A0572C-581D-401B-BC29-2909F2425995@xxxxxx
>> > Hi Rick,
>> >
>> > Thanks for the suggestion. Overheating seems to be a common problem,
>> > but
>> > quite often (tonight, for instance), the laptop shuts down after being
>> > on
>> > less than 10 minutes. I opened it up, started reading some Photoshop
>> > help
>> > directions, and off it went. Barely had time to warm up. At this point,
>> > I'm
>> > ready to pitch it out the window - but then I'd be without my shiny new
>> > coaster, which is about the only thing I can rely on it for.
>> >
>> > I think it boils down to Vista just being a crappy, unstable OS. My
>> > husband
>> > mentioned to a co-worker that I was frustrated with it, and the guy
>> > just
>> > smiled and said "Shuts her computer down, doesn't it?" Seems I'm not
>> > the
>> > only
>> > one.
>> >
>> > Thanks, though!
>> >
>> >
>> > "Rick Rogers" wrote:
>> >
>> >> Hi,
>> >>
>> >> At a guess, I'd say you're overheating. Either the internal fans
>> >> aren't
>> >> working properly or the vents are being blocked. The waiting period is
>> >> a
>> >> pretty good symptom of this. You're still under warranty, use it and
>> >> have
>> >> Acer check the machine out.
>> >>
>> >> --
>> >> Best of Luck,
>> >>
>> >> Rick Rogers, aka "Nutcase" - Microsoft MVP
>> >> http://mvp.support.microsoft.com/
>> >> Windows help - www.rickrogers.org
>> >> My thoughts http://rick-mvp.blogspot.com
>> >>
>> >> "Sandra" <Sandra@xxxxxx> wrote in message
>> >> news:EA972A4E-D7D6-48A8-A7E9-06639F94B081@xxxxxx
>> >> >I have a new (3 month old) Acer laptop, factory installed with Vista
>> >> >Home
>> >> > Premium. Since the day I bought it, the computer keeps shutting down
>> >> > at
>> >> > random - power off, black screen, no auto restart. It's rarely
>> >> > online,
>> >> > and
>> >> > I
>> >> > do not download stuff off the net, not even music. This highly
>> >> > frustrating
>> >> > event is random - sometimes after 10 minutes of use, sometimes after
>> >> > a
>> >> > couple
>> >> > of weeks without problem.
>> >> >
>> >> > Have added a couple of legit programs (Photoshop, MSN Messenger),
>> >> > but
>> >> > this
>> >> > has been happening since day one, well before I added any software.
>> >> >
>> >> > To get it to restart, I have to use safe mode, do a system restore,
>> >> > then
>> >> > when it restarts and gets to the desktop - blam, shuts down again.
>> >> > Wait
>> >> > at
>> >> > least two hours, then cross my fingers and try again.
>> >> >
>> >> > I called Microsoft and their not-too-helpful answer was to restore
>> >> > factory
>> >> > settings. Not much use when the problem has been happening since the
>> >> > day I
>> >> > bought the computer.
>> >> >
>> >> > So - does anyone have any suggestions? I see a Mac on my
>> >> > not-too-distant
>> >> > horizon, but figured I'd give this forum a shot first.
>> >> >
>> >> > Thank you.
>> >>
>> >> >>
>>