HP Pavilion .. reboots when house air conditioner comes on ... any thoughts?

  • Thread starter Thread starter Curtis Newton
  • Start date Start date
C

Curtis Newton

I am working on a friends HP Pavilion M7850 because he was having an
issue with the computer rebooting.

Well, I started noticing that whenever the house A/C comes on, the
computer reboots.

By the way, the power supply failed about 9 months ago and I replaced
it with a 200w (the original was a 180w) power supply from a small
computer shop.

Anyone heard of this before? Any thoughts on how to fix it? I was
thinking about either trying another power supply or a UPS to see if
that clears things up.

Thanks!
 
Curtis said:
I am working on a friends HP Pavilion M7850 because he was having an
issue with the computer rebooting.

Well, I started noticing that whenever the house A/C comes on, the
computer reboots.

By the way, the power supply failed about 9 months ago and I replaced
it with a 200w (the original was a 180w) power supply from a small
computer shop.

Anyone heard of this before? Any thoughts on how to fix it? I was
thinking about either trying another power supply or a UPS to see if
that clears things up.
Click to expand...

I'd vote for a UPS. The A/C may be producing enough variation in line
power to force a reset on the PC, which implies that it is putting a
great strain on the power supply as well. The fact that the old one
failed helps support this theory.
 
I'd vote for a UPS. The A/C may be producing enough variation in line
power to force a reset on the PC, which implies that it is putting a
great strain on the power supply as well. The fact that the old one
failed helps support this theory.
Click to expand...



Man do I feel stupid ... I just checked the back of the power supply
and it was set to 230v vice 115v. When I replaced it earlier, I
didn't even think to check to see if it was set to 115v or 230v. I
would have assumed a power supply sold in the US would be set for
115v.

Not sure if this is the cure all or not, but after switching it to
115v, the computer has stopped rebooting.

Going to run it for a few days before declaring victory.
 
Curtis said:
Man do I feel stupid ... I just checked the back of the power supply
and it was set to 230v vice 115v. When I replaced it earlier, I
didn't even think to check to see if it was set to 115v or 230v. I
would have assumed a power supply sold in the US would be set for
115v.

Not sure if this is the cure all or not, but after switching it to
115v, the computer has stopped rebooting.
Click to expand...

It's not that stupid ... I think it's reasonable to expect that a
power supply would be set to the voltage used in the place where it
was sold. However, it never hurts to check.

Whether or not it may have damaged the power supply is an open
question.
 
Howdy!

Man do I feel stupid ... I just checked the back of the power supply
and it was set to 230v vice 115v. When I replaced it earlier, I
didn't even think to check to see if it was set to 115v or 230v. I
would have assumed a power supply sold in the US would be set for
115v.
Click to expand...

Well, look at it this way - if it's set for 230V and you plug it
into 115V, then worst that happens is it won't run or it'll be unstable and
prone to rebooting (!!!) And the fact that it DOES have this switch shows
this supply is not for US-only.

If, however, it's set for 115V and you plug it into 230V - BOOM!
BIG BADA-BOOM!

Fail safe, not sorry.
Not sure if this is the cure all or not, but after switching it to
115v, the computer has stopped rebooting.
Click to expand...

That should. Considering that it was running on about 1/2 the
voltage it was wanting, and the drop when the A/C kicked on was probably
pushing it over the edge.

RwP
 
Curtis Newton said:
I am working on a friends HP Pavilion M7850 because he was having an
issue with the computer rebooting.

Well, I started noticing that whenever the house A/C comes on, the
computer reboots.
Click to expand...

Sounds like the AC is drawing down the voltage in the entire house when the
compressor starts. Short of fixing the house wiring problem, buy a UPS to
buffer the computer from the voltage drops.
 
Well, look at it this way - if it's set for 230V and you plug it
into 115V, then worst that happens is it won't run or it'll be unstable and
prone to rebooting (!!!) And the fact that it DOES have this switch shows
this supply is not for US-only.


That should. Considering that it was running on about 1/2 the
voltage it was wanting, and the drop when the A/C kicked on was probably
pushing it over the edge.
Click to expand...


And the best news, it has fixed the problem completely!
 
Back
Top