anyone revive motherBoard hit by lightning?

[Samuel]

hi folks,

my p4 is dead following storm.dead as in silent,not even fans. i think
it got hit via usb adsl modem (as i have no dial tone either now) and
exited into my home LAN via the network card as when i remove this
card and switch on the atx PSU fan turn on for 5 sec then shuts down.i
have other pcs on this lan (without modems) which wont turn on either
but i am not worried about them as they are obsolete.

does this shutdown after 5 sec indicate a short on the board?

how to i proceed to diagnose the short?would it be near the USB
port?anyone ever manage to revive his board?thanks

Sam

 

[James Sweet]

Often it means that the board is not detecting a tach signal from the CPU
fan.

"Samuel" <research1117@yahoo.com> wrote in message
news:521f95b4.0309162237.1a108eea@posting.google.com...

hi folks,

my p4 is dead following storm.dead as in silent,not even fans. i think
it got hit via usb adsl modem (as i have no dial tone either now) and
exited into my home LAN via the network card as when i remove this
card and switch on the atx PSU fan turn on for 5 sec then shuts down.i
have other pcs on this lan (without modems) which wont turn on either
but i am not worried about them as they are obsolete.

does this shutdown after 5 sec indicate a short on the board?

how to i proceed to diagnose the short?would it be near the USB
port?anyone ever manage to revive his board?thanks

Sam

 

[Andre]

"James Sweet" <jamessweet@hotmail.com> wrote in message news:<W7U9b.91626$mp.41267@rwcrnsc51.ops.asp.att.net>...

Often it means that the board is not detecting a tach signal from the CPU
fan.

Its probably toast, but ..

Check for fried glue logic . Sometimes a 74HCxx chip will blow itself
and stop the damage reaching the CPU and chipset .

"Samuel" <research1117@yahoo.com> wrote in message
news:521f95b4.0309162237.1a108eea@posting.google.com...
hi folks,

my p4 is dead following storm.dead as in silent,not even fans. i think
it got hit via usb adsl modem (as i have no dial tone either now) and
exited into my home LAN via the network card as when i remove this
card and switch on the atx PSU fan turn on for 5 sec then shuts down.i
have other pcs on this lan (without modems) which wont turn on either
but i am not worried about them as they are obsolete.

does this shutdown after 5 sec indicate a short on the board?

how to i proceed to diagnose the short?would it be near the USB
port?anyone ever manage to revive his board?thanks

Sam