After taking a week vacation, I had to move my PC out of my room..

But the power pack blew out again. This is the third one. The one that came with it did not last an hour, second lasted 5 months and on my third one that was from my old computer.

Is there a reason? This is my last spare, can anyone help or see what the problem is? I have a felling that this will give up as soon as I leave.

Check the power toggle switch on the back of your computer. If you don't have too many excess components in your computer, then switch it to the lower transformer setting. Having way more power available than what the device actually uses is the number one cause of power-pack asplosion.
Also, make sure you have all the electrical connections polarized correctly. For example, if certain types of capacitors (usually the ones that look like a soda can and one wire is longer than the other) are plugged in the wrong way, they can (and depending on voltage applied, WILL) explode.
If everything looks like it should be working, all I can say is call Geek Squad.

Strange, maybe you arent hooking it up right?

WackoMcGoose wrote:
Check the power toggle switch on the back of your computer. If you don't have too many excess components in your computer, then switch it to the lower transformer setting. Having way more power available than what the device actually uses is the number one cause of power-pack asplosion.

Say what? My experience with such things have yielded no such findings. Power supplies are meant to supply the voltage that's required of them. If a power supply breaks because you're not pushing it to the limit, it's because it's crappy.

WackoMcGoose wrote:
Also, make sure you have all the electrical connections polarized correctly. For example, if certain types of capacitors (usually the ones that look like a soda can and one wire is longer than the other)

I have no idea what you're talking about and I've seen most types of power connectors in modern computers.

As for the OP: your problem sounds like, in the first one, a classic case of infant mortality. It just happens some times. Hopefully, it was under warranty.

The second one only lasting 5 months does sound kind of odd. Did it fail while you were on this vacation? If so, there might have been some kind of storm that you weren't around for that gave you a power surge and blew out the power supply instead of taking out the whole computer.

That is one of the jobs of the power supply: to fail safely.

WackoMcGoose wrote:
Check the power toggle switch on the back of your computer. If you don't have too many excess components in your computer, then switch it to the lower transformer setting. Having way more power available than what the device actually uses is the number one cause of power-pack asplosion.
Also, make sure you have all the electrical connections polarized correctly. For example, if certain types of capacitors (usually the ones that look like a soda can and one wire is longer than the other) are plugged in the wrong way, they can (and depending on voltage applied, WILL) explode.
If everything looks like it should be working, all I can say is call Geek Squad.

All my switches were set to 115V then 220V.

Pretty sure everything was placed right. Yep, i call Geek Sqaid. They will be happy to come up my mountain for that.

Quote:
The second one only lasting 5 months does sound kind of odd. Did it fail while you were on this vacation? If so, there might have been some kind of storm that you weren't around for that gave you a power surge and blew out the power supply instead of taking out the whole computer.

It was unplugged. And the power pack is years old. it been in my PC for 5 months.