Motherboard / Power SUpply Issue

Is it at all possible for a motherboard to destroy a power supply,
causing the supply, hard drives and peripheral cards to spark & smoke?

This is what's happened to my other K6-2 350 Mhz system. I then
bought a new power supply. After installing it, I'd get a green power
on light but nothing else would work. After exchanging it for another
unit, I got a few sparks from the power supply unit and got sparks &
smoke from the hard drive & several peripheral cards.

The store where I got the power supply tried to tell me that it was
the motherboard that fried both new power supplies and that the units
they'd sold me were in good working condition.

BTW They gave me a 350 Watt power supply even though the original in
my ATX box was only 250 Watts.

Any feedback/suggestions would be greatly appreciated.

 

i don't know what fried what but i lost a motherboard and powersupply at the
same time
(luckily nothing else was damaged)

 

Yes, it can and does happen.

It's dead, Jim.

.... uhhhh... John.

((U))
M
"Damn it, Captain, I'm a *doctor*, not a mortician!"

 

So your supply, hard drives and cards were sparking and smoking? And you
decide that powering this burn out junk up again was a goodi idea?!

Yeah, and they were correct.

Not a problem.

Suggestion: Give up trying to find a reason to blame the shop that sold you
a power supply, throw the heap in the trash and start over from scratch.

 

Their lying.
They owe you a new motherboard and power supply. You should take the
equipment to them and demonstrate on one of their motherboards to verify
your claim.