computer reboots under heavy load

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On Sat, 25 Jun 2005 22:02:08 -0400, "Dan C"
<dantc721@hotmail.com> wrote:

>While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
>Deg. Celcius.
>P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
>installed XP SP2
>
>Any help would be appreciated.
>Thanks
>Dan C


You're kidding, right?

You run an overclocked box then wonder about stabilty.
Hint- put it back and stock speed, it should've been the
first thing tried. Just because a system starts out ok
overclocked, that doesn't mean it'll stay ok after some dust
accumulation, ambient temp changes, degradation of the power
or capacitors.

Then there are more subtle problems. For example, supposet
errs only once every 20 days due to overclocking. Suppose
that eventually, that ~ 20 day interval error occurs while
doing something important with the OS files- like applying a
service pack, or writing to the registry, or defragging the
HDD... perhaps your system was 100% stable, but very-low
error rates are harder to detect and we don't have the box
to know one way or the other.

Overclocking can be ok, and stable enough, but it can also
wear out parts far faster.

It'd also be good to start out with a concise but complete
detailing of all major parts in the system, including power
supply make/model. Since you just installed SP2, try making
a temporary OS installation elsewhere and see if problem
persists without SP2... all this while running at stock
speed, THEN try ramping the clock up again to see if it
makes a difference.

Other common things to try-
Run memtest86 for a few hours.
Run Prime95's Torture Test for a few hours.
Take voltage readings with a multimeter.
Inspect the case interior- cables, cards, fans, wires, etc.

Disable the operating system's reboot-on-error setting.
Google will find details on doing it. Then note if any
error logs, Event Viewer, or bluescreen messages reveal
anything useful.

Archived from groups: alt.comp.hardware.homebuilt (More info?)

Thanks for all the responses.
I will put it at stock speed and see what that does.


Dan C.

"kony" <spam@spam.com> wrote in message
news:gm8sb19n47lj4naogh3p990dcehgnf483e@4ax.com...
> On Sat, 25 Jun 2005 22:02:08 -0400, "Dan C"
> <dantc721@hotmail.com> wrote:
>
>>While running quickpar, or Norton AV, computer reboots. CPU Temp is about
>>61
>>Deg. Celcius.
>>P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then
>>I
>>installed XP SP2
>>
>>Any help would be appreciated.
>>Thanks
>>Dan C
>
>
> You're kidding, right?
>
> You run an overclocked box then wonder about stabilty.
> Hint- put it back and stock speed, it should've been the
> first thing tried. Just because a system starts out ok
> overclocked, that doesn't mean it'll stay ok after some dust
> accumulation, ambient temp changes, degradation of the power
> or capacitors.
>
> Then there are more subtle problems. For example, supposet
> errs only once every 20 days due to overclocking. Suppose
> that eventually, that ~ 20 day interval error occurs while
> doing something important with the OS files- like applying a
> service pack, or writing to the registry, or defragging the
> HDD... perhaps your system was 100% stable, but very-low
> error rates are harder to detect and we don't have the box
> to know one way or the other.
>
> Overclocking can be ok, and stable enough, but it can also
> wear out parts far faster.
>
> It'd also be good to start out with a concise but complete
> detailing of all major parts in the system, including power
> supply make/model. Since you just installed SP2, try making
> a temporary OS installation elsewhere and see if problem
> persists without SP2... all this while running at stock
> speed, THEN try ramping the clock up again to see if it
> makes a difference.
>
> Other common things to try-
> Run memtest86 for a few hours.
> Run Prime95's Torture Test for a few hours.
> Take voltage readings with a multimeter.
> Inspect the case interior- cables, cards, fans, wires, etc.
>
> Disable the operating system's reboot-on-error setting.
> Google will find details on doing it. Then note if any
> error logs, Event Viewer, or bluescreen messages reveal
> anything useful.
>

Archived from groups: alt.comp.hardware.homebuilt (More info?)

In article <ILSdnUPO_tgHkSPfRVn-pg@comcast.com>, Dan C says...
> While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
> Deg. Celcius.
> P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
> installed XP SP2
>
Its quite possible that the CPU core is degrading. 2 years seems to be
about the point where it starts showing signs if its going wrong.


--
Conor

-You wanted an argument? Oh I'm sorry, but this is abuse. You want room
K5, just along the corridor. Stupid git. (Monty Python)

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On Sun, 26 Jun 2005 21:24:01 +0100, Conor
<conor.turton@gmail.com> wrote:

>In article <ILSdnUPO_tgHkSPfRVn-pg@comcast.com>, Dan C says...
>> While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
>> Deg. Celcius.
>> P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
>> installed XP SP2
>>
>Its quite possible that the CPU core is degrading. 2 years seems to be
>about the point where it starts showing signs if its going wrong.

Oh?

I would tend to disagree 100%.
It's practically impossible, in fact this is within margin
of error for highest-speeds of same core. Since Intel
themselves spec that speed for the core design, the question
is NOT one of "core is degrading", only whether it's stable
at that speed which tends to remain constant over the
(reasonable) life of the CPU- more than a few years.

Archived from groups: alt.comp.hardware.homebuilt (More info?)

In article <mf5ub1p4jqnd6ceph2leg9q14n025qpagh@4ax.com>, kony says...
> On Sun, 26 Jun 2005 21:24:01 +0100, Conor
> <conor.turton@gmail.com> wrote:
>
> >In article <ILSdnUPO_tgHkSPfRVn-pg@comcast.com>, Dan C says...
> >> While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
> >> Deg. Celcius.
> >> P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
> >> installed XP SP2
> >>
> >Its quite possible that the CPU core is degrading. 2 years seems to be
> >about the point where it starts showing signs if its going wrong.
>
> Oh?
>
> I would tend to disagree 100%.

Disagree all you want. Can't argue against proven fact.

> It's practically impossible, in fact this is within margin
> of error for highest-speeds of same core.

And why was this particular CPU shipped as a 2.8GHz? Clue: Didn't meet
the standard for 3.2

> Since Intel
> themselves spec that speed for the core design, the question
> is NOT one of "core is degrading", only whether it's stable
> at that speed which tends to remain constant over the
> (reasonable) life of the CPU- more than a few years.
>
Do you even know how CPU cores are graded?


--
Conor

-You wanted an argument? Oh I'm sorry, but this is abuse. You want room
K5, just along the corridor. Stupid git. (Monty Python)

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On Mon, 27 Jun 2005 01:47:50 +0100, Conor
<conor.turton@gmail.com> wrote:

>In article <mf5ub1p4jqnd6ceph2leg9q14n025qpagh@4ax.com>, kony says...
>> On Sun, 26 Jun 2005 21:24:01 +0100, Conor
>> <conor.turton@gmail.com> wrote:
>>
>> >In article <ILSdnUPO_tgHkSPfRVn-pg@comcast.com>, Dan C says...
>> >> While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
>> >> Deg. Celcius.
>> >> P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
>> >> installed XP SP2
>> >>
>> >Its quite possible that the CPU core is degrading. 2 years seems to be
>> >about the point where it starts showing signs if its going wrong.
>>
>> Oh?
>>
>> I would tend to disagree 100%.
>
>Disagree all you want. Can't argue against proven fact.


Right- It's FACT that Intel specs the same cores for higher
speeds.

>
>> It's practically impossible, in fact this is within margin
>> of error for highest-speeds of same core.
>
>And why was this particular CPU shipped as a 2.8GHz? Clue: Didn't meet
>the standard for 3.2

Clue- Once a give process is mature, the vast majority of
the chips are downgraded to fill orders for lesser speeds.
It has been this way for years and still is.

Even if it weren't, when a given CPU core design is intended
to ramp up to (any particular) ceiling speed, you will not
be encountering damage, only instability.


>
>> Since Intel
>> themselves spec that speed for the core design, the question
>> is NOT one of "core is degrading", only whether it's stable
>> at that speed which tends to remain constant over the
>> (reasonable) life of the CPU- more than a few years.
>>
>Do you even know how CPU cores are graded?

Yes, but you don't.

Archived from groups: alt.comp.hardware.homebuilt (More info?)

In article <ILSdnUPO_tgHkSPfRVn-pg@comcast.com>, dantc721@hotmail.com
says...
> While running quickpar, or Norton AV, computer reboots. CPU Temp is about 61
> Deg. Celcius.
> P4 2.8 overclocked to 3.15. Been running fine for a couple of years, then I
> installed XP SP2
>
> Any help would be appreciated.
> Thanks
> Dan C
>
>
>


I had something similar. I'm running a 2.4 MHZ (nominal) Intel P4 at
2.8 MHz with Win2K. The system would periodically reboot when it was
under heavy load, particularly HD I/O. I changed clocking back to 2.4
with no effect. I installed additional RAM and have not seen problem
again - about 2 months. I suspect a Microsoft "feature" was manifesting
itself, although I can't verify that.

Glen