Solved laptop will not power up

December 22, 2013 at 08:10:56
Specs: Windows 7

After a power cut my laptop will not power up, a red light comes on when trying the power on butten then stops and the laptop stays shut down

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December 22, 2013 at 09:13:07
✔ Best Answer

Have you a test/volt meter? If so can you measure the voltage coming out from the power supply/adapter that plugs into the laptop?

It might be that it was hit/damaged when you had the power cut?

Presuming the laptop battery was installed - and reasonably well charged… I seriously doubt the laptop itself suffered anything… as the battery would simply have taken over (automatically) when the mains failed...

Also have you access to suitable "spare" power adapter - with which you could test?

message edited by trvlr

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December 22, 2013 at 09:40:23

What sort of laptop is it? We might have a power supply we can lend you to test it with.

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December 22, 2013 at 10:09:16

Also - just to clarify… The laptop was working (presumably with the battery installed and charged etc…) and then there was a power cut (not supposed to happen nowadays in the UK…).

Did the laptop stop working at that time - or did you continue on battery - until it drained out?

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December 22, 2013 at 12:15:44

"not supposed to happen nowadays in the UK"
Depends where you are, we get at least one failure per annum (rural - Kent).

Try this bit of Simple Simon which has been known to help at odd times when things get stuck:
Turn off laptop and disconnect from mains, also remove battery. Then hold power off/on button down for about 20 seconds. Put back together and you just might be the lucky one. At least its easy to try.

Always pop back and let us know the outcome - thanks

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December 22, 2013 at 12:55:26

Hi Derek:

(It was a slightly tongue in cheek as we have had one or two in NW Kent/GL border area… albeit briefly in the past.)

Yes I realise that once one gets out the Greater London precincts… the hamsters don't peddle as fast, as long as once they may have… But they do need a rest now and then…?

I can clearly remember regular power cuts in the late 40s and early 50s… We all had candles to hand as a norm… (and of course we had winter regularly each year - and with snow…!). But then things improved…, and then improved again - with the sell off of the whole electrics system by a certain government a few years back. Which sell off brought us the "very reasonable prices" now charged by the mostly overseas owners of the systems; and we know it's only a matter of time before things get better/worse (delete as appropriate) in the next few years. Investment in alternative light and power sources may mean - for example…

Might soon be back to candle power in the real sense of the word… (oil being too expensive); and again dependant on solar power - for all those essentials items - mobile-phone, tablets, LED garden lights…; and of course the village/community (water) pump... There are even solar stoves on which one can cook a modest meal on too…

Incidentally when I lived out in the sticks in Canada… we were all prepared for power-outages (as we call them in Canada); stocks of candles, oil and lamps, and a supply of wood too for the stove and fires… But then we do get winter there and prepare for it; whereas it's so unusual these days to have winter here - and snow…!

But back to the main issue… I have heard of that simple Simon routine working in the past; so here's hoping it will on this occasion.

Never understood the how/why of it though. If anyone can explain the how/why I'd be interested to learn of it.

message edited by trvlr

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December 22, 2013 at 15:22:00

Yeah, when I was in South East London I reckon we could go for 10 or 20 years without any power outage. You're right, it's those hamsters.

Aha, Simple Simon. It has definitely worked on these boards but not too often. The jargon name is "flea power" and I'm sure you'll find it in Google. First time I heard of it I was more than sceptical. I became a convert when it worked for me on a "repeatable issue". When powering back on after running a Live Linux CD my Windows Wifi always failed. I'm afraid I've never found a totally satisfactory technical explanation - only that it discharges information held in chips (presumably held up by the charge from electrolytic capacitors). On some PC's you see the power or HD light flash briefly when you do the 20 second bit.

Always pop back and let us know the outcome - thanks

message edited by Derek

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