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Archived from groups: alt.sys.pc-clone.dell (More info?)
FYI and a question at the end.
After installing a new dvd drive into my dell poweredge sc400, the pc failed
to boot. It was dead apart from the power switch which was flashing amber.
No fans or HDDs spun, the 4 diagnostic LEDs on the back were dead too and
there was no warning beeps. It was dead.
All indications pointed to a faulty power supply or motherboard - yikes! I
swaped in a new power supply I had lying around but the same fault
persisted.
I might point out that whilst I was rebooting, I was measuring 5VDC from one
of the motherboard/power supply connector pins. Even with the power cable
disconnected that 5VDC stayed there for some time and only went away after
pressing the start button on the front. In the back of my mind I was
thinking that if I managed to remove all voltage I might kick the m/b back
to life somehow. During this time I also reset the CMOS memory.
To cut a long story about cable swapping short, it wasn't until I removed my
sound and video cards that the computer sprang to life! Yippee! After this,
it booted every time.
AND NOW MY QUESTION....
During the 3rd reboot the computer powered down by itself (ungracefully I
might add). When I rebooted I got the message:
"the previous shutdown was due to a thermal event, press f1 to continue
or f2 to setup"
My fans are running and I suspect this might be a glitch? Is there a way to
quick measure the temperature of the offending component?
Cheers,
Peter
++
FYI and a question at the end.
After installing a new dvd drive into my dell poweredge sc400, the pc failed
to boot. It was dead apart from the power switch which was flashing amber.
No fans or HDDs spun, the 4 diagnostic LEDs on the back were dead too and
there was no warning beeps. It was dead.
All indications pointed to a faulty power supply or motherboard - yikes! I
swaped in a new power supply I had lying around but the same fault
persisted.
I might point out that whilst I was rebooting, I was measuring 5VDC from one
of the motherboard/power supply connector pins. Even with the power cable
disconnected that 5VDC stayed there for some time and only went away after
pressing the start button on the front. In the back of my mind I was
thinking that if I managed to remove all voltage I might kick the m/b back
to life somehow. During this time I also reset the CMOS memory.
To cut a long story about cable swapping short, it wasn't until I removed my
sound and video cards that the computer sprang to life! Yippee! After this,
it booted every time.
AND NOW MY QUESTION....
During the 3rd reboot the computer powered down by itself (ungracefully I
might add). When I rebooted I got the message:
"the previous shutdown was due to a thermal event, press f1 to continue
or f2 to setup"
My fans are running and I suspect this might be a glitch? Is there a way to
quick measure the temperature of the offending component?
Cheers,
Peter
++