Lightning Strike kills two pc

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Archived from groups: alt.sys.pc-clone.dell (More info?)

Hi all,
A friend has asked me to look at her two PC's that were struck by lightning.
Came in on the modems.. one is a 4400 after removing the modem it boots
perfectly and seems to be fine..However, no matter what I try I can't get a
new modem to install or work. I've tried two new modems and one used one I
had hanging around. I thought "maybe" it was a software conflict so I put
in a spare harddrive I had here and did a clean install of Win 2k same
results. Tried Win98SE no difference. Went back to original HD with XP
home on it and still no luck. All OS's report a resource conflict in the
Device Manager
The resource tab under conflicting device list reveals
that:
Input/Output Range DF00 - DF3F not available.
Memory Range 00800000 - 00FFFFFF not available.
Memory Range 00800000 - 00FFFFFF not available.
Disabling other devices has no effect. The modem is the only device
installed other than an AGP Video Card. What do you think is the
motherboard damaged?? Any and all advice is appreciated.

The other computer is a Dimension 8200 ..I can't get it to boot at all. So
I've picked up a new MB on eBay and we'll see what happens. I was able to
check the CPU in the 4400 and it booted up fine so that anyway appears to be
OK. .
TIA
Keith
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

Keith,

You might try clearing the CMOS in the 4400, then reinstalling a new modem.
Also, remove the motherboard battery overnight, and maybe even replace it.

Some of the system settings in CMOS or in flash NVRAM may have been corrupted by
the strike... Ben Myers

On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams" <kwilliams574@triad.rr.com>
wrote:

>Hi all,
>A friend has asked me to look at her two PC's that were struck by lightning.
>Came in on the modems.. one is a 4400 after removing the modem it boots
>perfectly and seems to be fine..However, no matter what I try I can't get a
>new modem to install or work. I've tried two new modems and one used one I
>had hanging around. I thought "maybe" it was a software conflict so I put
>in a spare harddrive I had here and did a clean install of Win 2k same
>results. Tried Win98SE no difference. Went back to original HD with XP
>home on it and still no luck. All OS's report a resource conflict in the
>Device Manager
>The resource tab under conflicting device list reveals
>that:
>Input/Output Range DF00 - DF3F not available.
>Memory Range 00800000 - 00FFFFFF not available.
>Memory Range 00800000 - 00FFFFFF not available.
>Disabling other devices has no effect. The modem is the only device
>installed other than an AGP Video Card. What do you think is the
>motherboard damaged?? Any and all advice is appreciated.
>
>The other computer is a Dimension 8200 ..I can't get it to boot at all. So
>I've picked up a new MB on eBay and we'll see what happens. I was able to
>check the CPU in the 4400 and it booted up fine so that anyway appears to be
>OK. .
>TIA
>Keith
>
>
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

Ben,
I tried clearing cmos I even updated the bios. I would think that updating
would cleanup any corrupted dated since it overwrites the cmos chip. What
are your thoughts. Do you think it's the board or should I be looking at
something else.
TIA
Keith
<ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
news:40f08bcb.34829489@news.charter.net...
> Keith,
>
> You might try clearing the CMOS in the 4400, then reinstalling a new
modem.
> Also, remove the motherboard battery overnight, and maybe even replace it.
>
> Some of the system settings in CMOS or in flash NVRAM may have been
corrupted by
> the strike... Ben Myers
>
> On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams"
<kwilliams574@triad.rr.com>
> wrote:
>
> >Hi all,
> >A friend has asked me to look at her two PC's that were struck by
lightning.
> >Came in on the modems.. one is a 4400 after removing the modem it boots
> >perfectly and seems to be fine..However, no matter what I try I can't get
a
> >new modem to install or work. I've tried two new modems and one used one
I
> >had hanging around. I thought "maybe" it was a software conflict so I
put
> >in a spare harddrive I had here and did a clean install of Win 2k same
> >results. Tried Win98SE no difference. Went back to original HD with XP
> >home on it and still no luck. All OS's report a resource conflict in the
> >Device Manager
> >The resource tab under conflicting device list reveals
> >that:
> >Input/Output Range DF00 - DF3F not available.
> >Memory Range 00800000 - 00FFFFFF not available.
> >Memory Range 00800000 - 00FFFFFF not available.
> >Disabling other devices has no effect. The modem is the only device
> >installed other than an AGP Video Card. What do you think is the
> >motherboard damaged?? Any and all advice is appreciated.
> >
> >The other computer is a Dimension 8200 ..I can't get it to boot at all.
So
> >I've picked up a new MB on eBay and we'll see what happens. I was able
to
> >check the CPU in the 4400 and it booted up fine so that anyway appears to
be
> >OK. .
> >TIA
> >Keith
> >
> >
>
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

"Keith Williams" <williamsplace2001@yahoo.com> wrote in message
news:L90Ic.151449$tH1.5291848@twister.southeast.rr.com...
> Ben,
> I tried clearing cmos I even updated the bios. I would think that
> updating
> would cleanup any corrupted dated since it overwrites the cmos chip. What
> are your thoughts. Do you think it's the board or should I be looking at
> something else.
> TIA
> Keith


<snip>

You could try flashing the BIOS if clearing and defaulting don't work.

It would appear that the mb PCI bus has been compromised.


Stew
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

Keith,

Updating the BIOS usually, but not always, invalidates the PnP settings which
are NOT kept in CMOS. Originally, CMOS was enough to keep track of the
important info about a computer's hardware setup. But Windows 95 brought the
Plug-and-Play spec, which set aside a part of the motherboard's flash BIOS chip
to keep the added hardware setup data.

How about trying something else... Click the System icon in Control Panel, click
the Device Manager tab, and remove all serial ports, modems, and similar from
the list of hardware there. Next, power down, reboot, and see what happens.

.... Ben Myers

On Sun, 11 Jul 2004 00:50:51 GMT, "Keith Williams" <williamsplace2001@yahoo.com>
wrote:

>Ben,
>I tried clearing cmos I even updated the bios. I would think that updating
>would cleanup any corrupted dated since it overwrites the cmos chip. What
>are your thoughts. Do you think it's the board or should I be looking at
>something else.
>TIA
>Keith
><ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
>news:40f08bcb.34829489@news.charter.net...
>> Keith,
>>
>> You might try clearing the CMOS in the 4400, then reinstalling a new
>modem.
>> Also, remove the motherboard battery overnight, and maybe even replace it.
>>
>> Some of the system settings in CMOS or in flash NVRAM may have been
>corrupted by
>> the strike... Ben Myers
>>
>> On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams"
><kwilliams574@triad.rr.com>
>> wrote:
>>
>> >Hi all,
>> >A friend has asked me to look at her two PC's that were struck by
>lightning.
>> >Came in on the modems.. one is a 4400 after removing the modem it boots
>> >perfectly and seems to be fine..However, no matter what I try I can't get
>a
>> >new modem to install or work. I've tried two new modems and one used one
>I
>> >had hanging around. I thought "maybe" it was a software conflict so I
>put
>> >in a spare harddrive I had here and did a clean install of Win 2k same
>> >results. Tried Win98SE no difference. Went back to original HD with XP
>> >home on it and still no luck. All OS's report a resource conflict in the
>> >Device Manager
>> >The resource tab under conflicting device list reveals
>> >that:
>> >Input/Output Range DF00 - DF3F not available.
>> >Memory Range 00800000 - 00FFFFFF not available.
>> >Memory Range 00800000 - 00FFFFFF not available.
>> >Disabling other devices has no effect. The modem is the only device
>> >installed other than an AGP Video Card. What do you think is the
>> >motherboard damaged?? Any and all advice is appreciated.
>> >
>> >The other computer is a Dimension 8200 ..I can't get it to boot at all.
>So
>> >I've picked up a new MB on eBay and we'll see what happens. I was able
>to
>> >check the CPU in the 4400 and it booted up fine so that anyway appears to
>be
>> >OK. .
>> >TIA
>> >Keith
>> >
>> >
>>
>
>
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

Ben,
Removed serial, and lpt ports disabled them in bios and also disabled sound
... Booted to safe mode and remove all vestiges of them. Booted cut down and
then installed modem card booted up and tried to install. Went the same as
all the others. If I try and automatic install it finds a PCI comunications
device but doesn't reconize the software on the floppy or cd as belonging to
the device. If I force and install by installing a modem and then telling
it I have disk. It warns that the drivers were not written for the device
do I want to install anyway. Once I install it tells me I have a resource
conflict. I copied the info and pasted it below. This is the same with two
different brands of new modems and one used modem.. Really
different(different modem chipsets).

Memory Range 00000000 - 000000FF used by:
System board extension for ACPI BIOS
Memory Range 00000000 - 0000000F used by:
System board extension for ACPI BIOS
Memory Range 00000000 - 0000000F used by:
System board extension for ACPI BIOS
Memory Range 00000000 - 0000000F used by:
System board extension for ACPI BIOS
Input/Output Range 0000 - 0007 used by:
Direct memory access controller
Input/Output Range 0000 - 00FF used by:
Motherboard resources
Input/Output Range 0000 - 00FF used by:
Standard 101/102-Key or Microsoft Natural Keyboard

any ideas??
TIA
Keith
<ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
news:40f099ec.38447398@news.charter.net...
> Keith,
>
> Updating the BIOS usually, but not always, invalidates the PnP settings
which
> are NOT kept in CMOS. Originally, CMOS was enough to keep track of the
> important info about a computer's hardware setup. But Windows 95 brought
the
> Plug-and-Play spec, which set aside a part of the motherboard's flash BIOS
chip
> to keep the added hardware setup data.
>
> How about trying something else... Click the System icon in Control Panel,
click
> the Device Manager tab, and remove all serial ports, modems, and similar
from
> the list of hardware there. Next, power down, reboot, and see what
happens.
>
> ... Ben Myers
>
> On Sun, 11 Jul 2004 00:50:51 GMT, "Keith Williams"
<williamsplace2001@yahoo.com>
> wrote:
>
> >Ben,
> >I tried clearing cmos I even updated the bios. I would think that
updating
> >would cleanup any corrupted dated since it overwrites the cmos chip. What
> >are your thoughts. Do you think it's the board or should I be looking at
> >something else.
> >TIA
> >Keith
> ><ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
> >news:40f08bcb.34829489@news.charter.net...
> >> Keith,
> >>
> >> You might try clearing the CMOS in the 4400, then reinstalling a new
> >modem.
> >> Also, remove the motherboard battery overnight, and maybe even replace
it.
> >>
> >> Some of the system settings in CMOS or in flash NVRAM may have been
> >corrupted by
> >> the strike... Ben Myers
> >>
> >> On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams"
> ><kwilliams574@triad.rr.com>
> >> wrote:
> >>
> >> >Hi all,
> >> >A friend has asked me to look at her two PC's that were struck by
> >lightning.
> >> >Came in on the modems.. one is a 4400 after removing the modem it
boots
> >> >perfectly and seems to be fine..However, no matter what I try I can't
get
> >a
> >> >new modem to install or work. I've tried two new modems and one used
one
> >I
> >> >had hanging around. I thought "maybe" it was a software conflict so I
> >put
> >> >in a spare harddrive I had here and did a clean install of Win 2k same
> >> >results. Tried Win98SE no difference. Went back to original HD with
XP
> >> >home on it and still no luck. All OS's report a resource conflict in
the
> >> >Device Manager
> >> >The resource tab under conflicting device list reveals
> >> >that:
> >> >Input/Output Range DF00 - DF3F not available.
> >> >Memory Range 00800000 - 00FFFFFF not available.
> >> >Memory Range 00800000 - 00FFFFFF not available.
> >> >Disabling other devices has no effect. The modem is the only device
> >> >installed other than an AGP Video Card. What do you think is the
> >> >motherboard damaged?? Any and all advice is appreciated.
> >> >
> >> >The other computer is a Dimension 8200 ..I can't get it to boot at
all.
> >So
> >> >I've picked up a new MB on eBay and we'll see what happens. I was
able
> >to
> >> >check the CPU in the 4400 and it booted up fine so that anyway appears
to
> >be
> >> >OK. .
> >> >TIA
> >> >Keith
> >> >
> >> >
> >>
> >
> >
>
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

Did you try installing a new modem in a different PCI slot?
kw


"Keith Williams" <kwilliams574@triad.rr.com> wrote in message
news:HG_Hc.151432$tH1.5280532@twister.southeast.rr.com...
> Hi all,
> A friend has asked me to look at her two PC's that were struck by
lightning.
> Came in on the modems.. one is a 4400 after removing the modem it boots
> perfectly and seems to be fine..However, no matter what I try I can't get
a
> new modem to install or work. I've tried two new modems and one used one
I
> had hanging around. I thought "maybe" it was a software conflict so I put
> in a spare harddrive I had here and did a clean install of Win 2k same
> results. Tried Win98SE no difference. Went back to original HD with XP
> home on it and still no luck. All OS's report a resource conflict in the
> Device Manager
> The resource tab under conflicting device list reveals
> that:
> Input/Output Range DF00 - DF3F not available.
> Memory Range 00800000 - 00FFFFFF not available.
> Memory Range 00800000 - 00FFFFFF not available.
> Disabling other devices has no effect. The modem is the only device
> installed other than an AGP Video Card. What do you think is the
> motherboard damaged?? Any and all advice is appreciated.
>
> The other computer is a Dimension 8200 ..I can't get it to boot at all.
So
> I've picked up a new MB on eBay and we'll see what happens. I was able to
> check the CPU in the 4400 and it booted up fine so that anyway appears to
be
> OK. .
> TIA
> Keith
>
>


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.718 / Virus Database: 474 - Release Date: 7/9/2004
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

A Dell engineer once told me that my modem had died because of a power
surge, and said all PCs should have power surge protectors.

Try replacing your modem, they're cheap, or at least borrown one and see if
it works, or visa versa.
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

"Tony" <poipoipoi@poipoipoi.com> wrote in message
news:ccr5e3$1u4$1@hercules.btinternet.com..

> Try replacing your modem, they're cheap, or at least borrown one and see
if
> it works, or visa versa.

Did I read his post incorrectly?

On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams"
<kwilliams574@triad.rr.com>
wrote:
However, no matter what I try I can't get a
new modem to install or work. I've tried two new modems and one used one I
had hanging around.


"Tony" <poipoipoi@poipoipoi.com> wrote in message
news:ccr5e3$1u4$1@hercules.btinternet.com...
> A Dell engineer once told me that my modem had died because of a power
> surge, and said all PCs should have power surge protectors.
>
> Try replacing your modem, they're cheap, or at least borrown one and see
if
> it works, or visa versa.
>
>
>
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

If transient entered on phone line (completely ignoring the
telco's properly earthed 'whole house' protector), then where
did lightning continue to? Lightning does not enter modem,
damage modem, then stop. That would even violate primary
school science lessons. First lightning traveled through
everything on a complete circuit path that includes into and
out of modem AND that includes earth ground. What is that
complete path? Therein lies a clue to the solution.

In reality, most modems damaged on their DAA sections have a
surge incoming on AC mains and outgoing on phone line.

So now we continue the investigation. Did lightning also
damage the PCI bus slot (from AC mains, through PCI slot,
through modem, and outgoing on phone line)? Can another known
good PCI card be configured in that slot?

What does the manufacturer diagnostic report (assuming
either modem can even boot the diagnostic)?

Is that other motherboard damaged? Well, start by first
confirming that motherboard power supply controller even talks
to power supply. Procedures for using the 3.5 digit
multimeter are provided previously at:
"I think my power supply is dead" in alt.comp.hardware on 5
Feb 2004 at
http://tinyurl.com/yvbw9
alt.comp.hardware.pc-homebuilt entitled "Power Supply" on 5
Feb 2004 at
http://tinyurl.com/32j4g

Even if an LED lights, the power supply may not provide
sufficient voltage or Power Good signal to motherboard. These
tests should take less than 1 minute. If motherboard has
proper voltage (power supply did verify) and does not even
beep when all but power supply, CPU, and speaker is removed
(yes, disconnect or remove memory, keyboard, mouse, all
peripherals, video card, etc), then you can assume motherboard
is replaceable.

Whatever you do, do not do as others have suggested. Do not
start wildly changing things without first basic facts.
Otherwise you end up with even more problems. More problems
means the complexity increases exponentially with each new
change.

Notice the proper procedure. First get basic facts. Those
power supply measurements first confirm the power supply and
motherboard controller work properly. Only then move on to
verify other parts. Do not overwrite BIOS which can
permanently destroy a motherboard confused by a video card
problem. Resetting CMOS after 'all but CPU, speaker, and
power supply is removed' test can be the next step. Notice
that solution is about collecting basic facts rather than
seeking an instant solution.

In the meantime, she probably has no 'whole house' protector
on AC electric. That being the most common source of modem
destructive surges (as well as damage to answering machine and
portable phone base station). Adjacent (plug-in) protectors
could have even contributed to her failures.

Keith Williams wrote:
> Hi all,
> A friend has asked me to look at her two PC's that were struck
> by lightning. Came in on the modems.. one is a 4400 after
> removing the modem it boots perfectly and seems to be
> fine..However, no matter what I try I can't get a
> new modem to install or work. I've tried two new modems and
> one used one I had hanging around. I thought "maybe" it was
> a software conflict so I put in a spare harddrive I had here
> and did a clean install of Win 2k same results. Tried
> Win98SE no difference. Went back to original HD with XP
> home on it and still no luck. All OS's report a resource
> conflict in the Device Manager The resource tab under
> conflicting device list reveals that:
> Input/Output Range DF00 - DF3F not available.
> Memory Range 00800000 - 00FFFFFF not available.
> Memory Range 00800000 - 00FFFFFF not available.
> Disabling other devices has no effect. The modem is the
> only device installed other than an AGP Video Card. What
> do you think is the motherboard damaged?? Any and all
> advice is appreciated.
>
> The other computer is a Dimension 8200 ..I can't get it to
> boot at all. So I've picked up a new MB on eBay and we'll
> see what happens. I was able to check the CPU in the 4400
> and it booted up fine so that anyway appears to be OK. .
> TIA
> Keith
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

On Sun, 11 Jul 2004 02:28:02 GMT, "Keith Williams" <williamsplace2001@yahoo.com>
wrote:

>Ben,
>Removed serial, and lpt ports disabled them in bios and also disabled sound
>.. Booted to safe mode and remove all vestiges of them. Booted cut down and
>then installed modem card booted up and tried to install. Went the same as
>all the others. If I try and automatic install it finds a PCI comunications
>device but doesn't reconize the software on the floppy or cd as belonging to
>the device. If I force and install by installing a modem and then telling
>it I have disk. It warns that the drivers were not written for the device
>do I want to install anyway. Once I install it tells me I have a resource
>conflict. I copied the info and pasted it below. This is the same with two
>different brands of new modems and one used modem.. Really
>different(different modem chipsets).
>
>Memory Range 00000000 - 000000FF used by:
> System board extension for ACPI BIOS
>Memory Range 00000000 - 0000000F used by:
> System board extension for ACPI BIOS
>Memory Range 00000000 - 0000000F used by:
> System board extension for ACPI BIOS
>Memory Range 00000000 - 0000000F used by:
> System board extension for ACPI BIOS
>Input/Output Range 0000 - 0007 used by:
> Direct memory access controller
>Input/Output Range 0000 - 00FF used by:
> Motherboard resources
>Input/Output Range 0000 - 00FF used by:
> Standard 101/102-Key or Microsoft Natural Keyboard
>
>any ideas??
>TIA
>Keith
><ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
>news:40f099ec.38447398@news.charter.net...
>> Keith,
>>
>> Updating the BIOS usually, but not always, invalidates the PnP settings
>which
>> are NOT kept in CMOS. Originally, CMOS was enough to keep track of the
>> important info about a computer's hardware setup. But Windows 95 brought
>the
>> Plug-and-Play spec, which set aside a part of the motherboard's flash BIOS
>chip
>> to keep the added hardware setup data.
>>
>> How about trying something else... Click the System icon in Control Panel,
>click
>> the Device Manager tab, and remove all serial ports, modems, and similar
>from
>> the list of hardware there. Next, power down, reboot, and see what
>happens.
>>
>> ... Ben Myers
>>
>> On Sun, 11 Jul 2004 00:50:51 GMT, "Keith Williams"
><williamsplace2001@yahoo.com>
>> wrote:
>>
>> >Ben,
>> >I tried clearing cmos I even updated the bios. I would think that
>updating
>> >would cleanup any corrupted dated since it overwrites the cmos chip. What
>> >are your thoughts. Do you think it's the board or should I be looking at
>> >something else.
>> >TIA
>> >Keith
>> ><ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
>> >news:40f08bcb.34829489@news.charter.net...
>> >> Keith,
>> >>
>> >> You might try clearing the CMOS in the 4400, then reinstalling a new
>> >modem.
>> >> Also, remove the motherboard battery overnight, and maybe even replace
>it.
>> >>
>> >> Some of the system settings in CMOS or in flash NVRAM may have been
>> >corrupted by
>> >> the strike... Ben Myers
>> >>
>> >> On Sat, 10 Jul 2004 23:09:27 GMT, "Keith Williams"
>> ><kwilliams574@triad.rr.com>
>> >> wrote:
>> >>
>> >> >Hi all,
>> >> >A friend has asked me to look at her two PC's that were struck by
>> >lightning.
>> >> >Came in on the modems.. one is a 4400 after removing the modem it
>boots
>> >> >perfectly and seems to be fine..However, no matter what I try I can't
>get
>> >a
>> >> >new modem to install or work. I've tried two new modems and one used
>one
>> >I
>> >> >had hanging around. I thought "maybe" it was a software conflict so I
>> >put
>> >> >in a spare harddrive I had here and did a clean install of Win 2k same
>> >> >results. Tried Win98SE no difference. Went back to original HD with
>XP
>> >> >home on it and still no luck. All OS's report a resource conflict in
>the
>> >> >Device Manager
>> >> >The resource tab under conflicting device list reveals
>> >> >that:
>> >> >Input/Output Range DF00 - DF3F not available.
>> >> >Memory Range 00800000 - 00FFFFFF not available.
>> >> >Memory Range 00800000 - 00FFFFFF not available.
>> >> >Disabling other devices has no effect. The modem is the only device
>> >> >installed other than an AGP Video Card. What do you think is the
>> >> >motherboard damaged?? Any and all advice is appreciated.
>> >> >
>> >> >The other computer is a Dimension 8200 ..I can't get it to boot at
>all.
>> >So
>> >> >I've picked up a new MB on eBay and we'll see what happens. I was
>able
>> >to
>> >> >check the CPU in the 4400 and it booted up fine so that anyway appears
>to
>> >be
>> >> >OK. .
>> >> >TIA
>> >> >Keith
>> >> >
Once electromagnetic pulses of the magnitude of lightning enters a solid state
device ... such as a computer... they become unreliable, even those that appear
to be working properly at the moment. They can fail at any time. In the
non-working computer has the already thin junction between semiconductors
has broken down. Those that are still working have had those thin junctions
weakened by the electromagnetic pulses and can break down at any time.
Oh, all are not weakened but some/many are. Which ones are they? How can
you tell?

Jack Mac
 
Archived from groups: alt.sys.pc-clone.dell (More info?)

And this seems to argue for replacement of the motherboard, not continuing to
spend time trying to make a failing one work reliably. I concur, considering
all the time the original poster has spent without a positive result.

.... Ben Myers

On Sun, 11 Jul 2004 22:00:38 -0400, Jack Mac <camkcaj@bellsouth.net> wrote:

<BIG SNIP!>
>Once electromagnetic pulses of the magnitude of lightning enters a solid state
>device ... such as a computer... they become unreliable, even those that appear
>to be working properly at the moment. They can fail at any time. In the
>non-working computer has the already thin junction between semiconductors
>has broken down. Those that are still working have had those thin junctions
>weakened by the electromagnetic pulses and can break down at any time.
>Oh, all are not weakened but some/many are. Which ones are they? How can
>you tell?
>
>Jack Mac
>
>
 
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