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Resolved Question

HP Pavilion ms213 Power Issue????

by Dec 12, 2012 3:41AM PST

I have an HP Pavilion ms213 that's having an odd problem.
The computer is having some sort or Power issue.

If I click Restart the computer will shut off (a click sound is heard) and will not restart.
If I shut down the computer will shut off (a click sound is heard).
With Either situation I cannot power the system back on by use of the power button, the only way to turn it back on is to unplug the power cord and plug it back in. Doing this starts the computer without having to push power.
After the machine is on I can use the power button to shutdown the computer so I don't believe the button to be the problem.

Other than this issue the machine works fine. Will surf the internet no problems.

I'm running Windows 7 64 Bit but don't think my system info is needed here.

Any Ideas?

Discussion is locked

poyeasfy has chosen the best answer to their question. View answer
10 Posts
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Best Answer

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Look into...
by Dec 13, 2012 2:47AM PST

Since, it powers-up when you remove the AC cord and then reurn it it, that suggest some power logic ckt. action. In other words its on the mtrbd. itself. Basically, when removing AC power you also remove the "warm-up ckt. for logic which is why you can turn it ON, when it fact all you're doing is telling to become ON. In other words this isn't a direct AC ON/OFF switcha s you suspect. Once the logic ckt. is drained it allows itself to be reset to default state, OFF. For whatever reason, the mtrbd. is hosed. While you can swap or replace the PSU or AC adapter brick, usually it would provide a quick status if everything working. Since, it's not, then your have an int. repair. Robert, provided a work-around to hope it does this always to ON/OFF the AIO type PC. Repair and downtime maybe too much for this PC, so consider the fix. Next, you may want to fiddle with power setting and see if anything is related, though I think not, just an area to check. If the CMOS battery is somehow at fault, you would think it would reset bios setting over time, check &bverify is anything has come-up as such, otherwise disgard advise. Below is what HP provide on "start-up problems":

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01884928&tmp_task=solveCategory&cc=us&dlc=en&lc=en&product=4007499

I always check HP/Compaq customer posted problems as they may zero-in on common issues. Also, you can query there to see if they help, it's a free service, but you have to wait for any reply.

tada ------Willy Happy

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Answer
Edit
by Dec 12, 2012 3:56AM PST

I'm not sure how to edit my post above but I need to add that this doesn't happen all the time.
Sometimes it restarts fine using the power button.

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Answer
I owned a machine like that.
by Forum moderator Dec 12, 2012 4:16AM PST

It was the motherboard. I changed the PSU because that was cheap but later we changed the motherboard.

Try the cheap parts first such as the PSU and the BIOS battery before you change the motherboard. Also, why not put it on some AC switch power bar to make it easier? Most folk loathe the repair bill for this one.
Bob

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PSU?
by poyeasfy Dec 12, 2012 8:48AM PST

I take it to mean Power Supply Unit? Is that the same thing as the AC Adapter in these models?
I ask because I'm used to working with the Old Desktop Style of Power Supply and I'm not sure what to look for.


Also since posting this the Computer no longer turns on at all.
The AC adapter tests at 19.22 with a digital multimeter.

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Many pavillions were destops.
by r. proffitt Forum moderator Dec 12, 2012 9:11AM PST

Since this is a laptop you want to try it without the laptop battery. Here's the story. Folk tend to leave failed batteries in laptops for reasons I can't list here. Those dead batteries can fry something on the main board without killing the adapter. I don't have a lot of story about this laptop but I wonder.
Bob

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Not a Laptop
by poyeasfy Dec 12, 2012 9:28AM PST
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Repairs run on par with a laptop.
by r. proffitt Forum moderator Dec 12, 2012 9:47AM PST

That's why I suggest if it's out of warranty that you get power bar and switch.
Bob

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That would work if it hadn't died completely
by poyeasfy Dec 12, 2012 11:34AM PST

As I said before it died and will not turn on at all now. These all in one PC's don;t have a built in power supply like older desktops do they?

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PSU here
by mchainmchain Dec 12, 2012 6:07PM PST
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The PSU or power brick looked OK.
by r. proffitt Forum moderator Dec 13, 2012 12:10AM PST

It's on par with a laptop so your repair bills are about the same as a laptop. If workarounds don't work then you start replacing boards.

I'd start with the cheapest possible part first. The CMOS battery.
Bob

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