Something is wrong with my laptop?

LucyDuke

staring at the clock
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My laptop is screwed up.

I bought it early this year, it's still under warranty. Also I totally suck at backing things up so there's irreplaceable stuff on the hard drive. The problem is power, so unless I can fix it up enough to power long enough to unload 160gb, I really, really, really don't want to send it to HP for warranty repair. I'll pay for replacement parts if I have to to avoid losing my data.

First failure: regular use, I go to move the computer from my lap to a table, exactly like every single time I've ever moved it. It turns off as though the power's been cut. The battery is at 100%, the AC cord is plugged in snugly to the wall and itself and the computer. There's a little LED next to where the cord plugs into the computer, it's always on when it's getting power, it's off when this happens. I panic, because this is similar to the issue that killed my last laptop. I look over the cable, everything's plugged in fine, no kinks, no visible damage. I unplug and plug in the cable a few times, remove and replace the battery a few times, trying to get a combination that'll turn the light on. No luck, until out of nowhere it works. I can't tell why. I'm still nervous but at least crisis averted.

Second failure: same as the first. Just as much panic, just as random solution.

I talk to someone about this, advised that I should test the cable.

Third failure: same as the first. Instead of freaking out, I simply twist the plug in its socket (round plug in round socket, like earphones), the LED comes on and computer powers up when I tell it to.

(The battery still works to reboot the machine after one of these failures. It doesn't prevent the failure, but after failure, I can boot from the battery.)

Fourth failure: last night, I go to move the computer from its perch on a box on my bed. My dog is laying on part of the cable, so it jostles a little bit and woo the same power failure. This time, twisting, waiting, fooling around with the cable does not work.

I think "what the hell" and start to disassemble the machine. Last time this happened, with the last laptop, the mounting for the AC adapter inside the computer was busted up, the plastic was snapped and the metal nearly broken. I used superglue and solder to fix it three times, by now that one is beyond repair. I'm looking for the power connector thing, because if there's a problem, that's got to be it (right?). Compaq wised up between the design of that old computer and this new one, the power connector is a solid block that fits snugly into a sort of channel on the side of the case. It's certainly not flimsy.

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Unfortunately it looks fine. I haven't yet gotten enough into the machine to check its connection, so it's possible that its plug has come loose or something. I suppose it's also possible that the connector itself is busted, but it looks solid.

So... what could the problem be? I don't think it's the cable that goes from the computer to the wall, since when I unplug it, it switches happily to battery, while if this failure happens, the machine goes off. I can't really see how it could be anything but this little power block thingy, but can't see how it could be the little power block thingy, either, since it looks so damn solid! I'm going to dig a little deeper tonight to get to whatever that module plugs in to, in case this is a stupid loose-connection problem.

Any and all help much appreciated. The computer is an HP Compaq CQ60, and the HP part number for the potential problem piece is 496835-001.
 
I can't help with your actual problem, but you've probably voided the warranty by opening it up...
 
It sounds like a poor connection. Possibly between the power supply and motherboard. If you have the case open anyways, make certain that all the internal connections that you can locate are firmly connected.
 
Since it seems to shut off when AC power is removed, it sounds like either a setting somewhere, or the power drivers got messed up in Windows. Id certainly explore that option a bit.

As for the power going out in the first place, like I said before, I do believe its an issue witht he power cable itself.
 
Couldn't you remove the hard drive and put it in external casing?
 
For purposes of keeping your data safe, that would work, but it would void the warranty if the hard drive is only accessable by taking off a part of the casing. In which case, you cant really send it off for repair anymore.
 
I can't help with your actual problem, but you've probably voided the warranty by opening it up...

Yeah. Didn't break any seals or anything, though, so I'm prepared to lie about that.

It sounds like a poor connection. Possibly between the power supply and motherboard. If you have the case open anyways, make certain that all the internal connections that you can locate are firmly connected.

I'm going to double-check that connection. I don't understand why that would turn it off when it gets wobbly, though, rather than just switch to battery... does that make sense?

Since it seems to shut off when AC power is removed, it sounds like either a setting somewhere, or the power drivers got messed up in Windows. Id certainly explore that option a bit.

As for the power going out in the first place, like I said before, I do believe its an issue witht he power cable itself.

Where do I look for these settings? I have no idea where to start.

Couldn't you remove the hard drive and put it in external casing?

If it comes down to it, I suppose.

For purposes of keeping your data safe, that would work, but it would void the warranty if the hard drive is only accessable by taking off a part of the casing. In which case, you cant really send it off for repair anymore.

It's got its own little compartment. If I can't solve this myself, I'll still send it off for repair, even if I've got to pay for it.

As always, thanks y'all.
 
I don't have a lot of experience with laptops. However, following the electricity trail:

Wall to battery charger/power converter
Battery charger to battery
Battery to power supply unit for device
Power supply to motherboard

So there are several places both inside and outside that it connects that might be loose. But if the battery is charged and the machine is shutting down, that argues that it's one of the internal connections that's not working right, rather than the external ones. And if it is the physical movement of the laptop that triggers it, than that argues for something loose rather than something broken. A busted power supply or motherboard, for example, would be busted all the time.
 
You should always back up!

Because it seems to fails whenever you move it, my guess it's a bad connection.
I would back up the data and send it back.
 
I know I need to back up. Especially dumb move to not back up after the first issue. :( Now I've got about 75% battery and a lot more data to recover than I'd be able to recover in the time given by 75% battery. It's gonna suck really hard if I have to send this out.


Each failure was accompanied by some kind of jostle to the AC cable. I can't completely rule out just a shake of the computer, but after the first failure I did move it several times with the AC cable removed, running on battery, without having a problem.


GB: yanking the AC cable out didn't cause a power-off. It just reverted to battery like it should have. I tried it several times. Does that rule out the potential driver issue, or is that something I should still be considering? The only significant change that preceded this issue was the installation of a new video codec. Nothing substantial for at least a month before this started, and I pretty much never mess with things like driver settings.

BirdJag: I like you guys!


I'm going to call HP tonight and hope like hell they'll be able to tell me something useful. I doubt it. Whenever I call them about a recurring paper jam they tell me to check the toner cartridge.

My next step is to find someone with an HP notebook so I can see if my AC cable works with their notebook or if my notebook works with their AC cable. Or pick up a new cable at BestBuy if I can't find a guinea pig. That'll rule out the AC cable.

After quite a lot of fiddling, I'm confident that I'm not going to make it work just by wiggling the cable or the jack from the outside. If it's not the AC cable, I've got to repair or replace the internal power assembly thing, right? I figure I can send the whole thing to HP, where, if they don't decide my warranty is void, they can take their sweet time wiping my hard drive *cringe* and maybe fixing the thing properly. Or, I can check to see if it's just a loose connection inside (I doubt this, there is a cable from the jack to whatever the jack is connected to with plenty of slack, so jiggling the jack wouldn't tug much on whatever it's connected to). If it's just a loose connection, easy fix. If the connection is fine, replace the whole thing, it's about $30 including shipping, which I'm perfectly happy to pay to avoid the HP wipe.

The lame thing is that the power assembly is basically the first thing put in place assembling the computer, so the last thing I get to disassembling the computer.
http://h10032.www1.hp.com/ctg/Manual/c01602064.pdf


Is it at least possible that the problem could be confined to the power assembly, and that repairing or replacing that will solve it completely? That is, could a loose or faulty power assembly lead to the power-off despite a working battery? Some kind of abrupt cutoff that the system doesn't recognize? I don't know enough about this topic... I need to know whether it's something I can conceivably repair myself. I can handle simply swapping parts, but I can't handle much more complicated than match the plug to the socket. If there's no way that the simple failure I'm imagining could cause the power-off, I pretty much have to send it to HP.
 
I assume that it is not a driver issue because each failure comes from the jostling the AC cable.

If you send the laptop back to HP I would certainly back up (maybe you get a refurbished latop, you never know)

If you have any information stored on your laptop that's private I would delete it, can't be too careful. I've heard stories about people in tech support that the first thing they do when they get a computer is check the 'my documents folder'.
 
If you send the laptop to HP, remove the hard drive. Often they'll just go and make a drive imagine 'just in case'
 
I cannot backup the hard drive. It's at least 40gb of irreplacable files (not counting the possible-but-time-consuming-to-replace files), which I could not extract by any means in the time given by what's left of the battery. I do not have separate casing that could read the hard drive. I could salvage some essentials on the 75% battery. Substantial backup is not an option.

GB - would that work? I figured if I sent it in without a hard drive they'd play their dumbass card and refuse to touch it. I suppose I could ask support and demand they make a note about it and hope like hell they actually provide some kind of cohesive customer service... I expect those to be long odds. I was also considering buying a replacement hard drive and sending it in with the new one, but that'd be >$150 and extra ass pain.

If they're likely to fix it without the hard drive present... I'll send it in tomorrow.

So now... which is more likely: this is a simple hardware problem that can be fixed by repairing or replacing the power assembly myself... or... HP will fix the damn thing under warranty or for a not-totally-outrageous price out of warranty without having the hard drive present.
 
I wouldn't replace the power assembly myself if I wasn't 100% sure it was the problem and if it would void the warranty.

Do you know anybody with an external hard drive casing for laptop hard disks? If you do perhaps you can use that one.

I really don't know if HP will fix your laptop if you send it in without the HDD but I really don't have a high regard for customer service of computer manufacturers.
 
Do you have another computer on your home LAN? You can probably get most if not all data off your computer and onto the other computer in that time. You could simultaneously upload bits to the interwebs and to your iPod too.
 
If the choice is a) void warranty, keep data and b) lose data, keep warranty, then I'm going with "screw the warranty".

It's possible I could get my hands on a hard drive case, but nothing I can count on.

This computer has always thrown a tantrum when I tried to get it to play with the rest of the network so I stopped trying. I'm pretty sure that I'm not going to be able to make it happen at 75% battery.

And Mise you know I don't have a damn ip-od.
 
Just pull the hard drive out and send it in. If they complain remind them that the problem is not with the hard drive and that any competent repair shop would have their own to work with.
 
I cannot get any power of any kind to come through the AC adapter.
 
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