My Acer Aspire 5920g won't start up

January 29, 2011 at 06:41:17
Specs: Windows 7
Hi, i have a Acer Aspire 5920g with Win Vista. When i press the power button, i sound like its working for about 4 sec, and then it stop working, for the whole period is the screen black. can anybody help me what to do?

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January 29, 2011 at 09:50:07
Is this on a battery or the ac adapter or both ?

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February 18, 2011 at 09:32:32
im not sure i understand what you mean, but i've spoken with a friend, he said that i might have killed the Cpu? is it possible to buy a new cpu or would that be stupid?

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February 18, 2011 at 10:28:54
Have you, or is it possible anyone else has....
- dropped this computer, or otherwise subjected it to a physical jolt ?
- spilled liquid on it, or exposed to to liquid such as rain or by spraying anything on it ?

If the answer is yes to either, a tech who posted here said that those reasons are the most common reason the mboard or other components inside the case need to be replaced because they are damaged.

A dead cpu - processor - is extremely unlikely to be the problem.

Even if the cpu was overheating for some reason, the mboard's bios automatically shuts off the mboard when the cpu temp goes above a max temp so usually it can't be damaged from overheating.

If the CPU IS overheating, and if that's the only problem...
- the computer will probably start up fine after it has a chance to cool to room temp, but eventually the cpu will overheat, you may then get weird symptoms in Windows for a short while, then the mboard produces one or more error beeps and it shuts off.
- if the mboard has shut off for that reason, either the computer will not start up at all, or it does start up but shuts off again within a few seconds, until the cpu has cooled to below some temp, then after that the computer will start up fine.

Common causes of the cpu overheating
- you are obstructing the passage of air into and out of the case base - don't use the laptop in bed, or on your lap if you're wearing loose clothing, unless it's placed on something flat.
- there may be too much dust and lint inside the base of the laptop - you may be able to see some of that where you can see cooling fins in a case opening if you use a flashlight there.
- if you've used the laptop a lot, the fan inside the laptop may be failing and not be spinning fast enough or at all.
Also, the bios will shut off the mboard within a few seconds after booting if the fan rpm is detected to be below a minimum speed or if it is not spinning at all.

Laptop no video (or video problems), and battery, AC adapter, power jack T shooting.

See response 1:

DO NOT plug in or unplug a monitor's video cable into / from a video port while the computer is running. Doing so can damage the monitor's circuits and/or the video adapter's circuits.

Some laptops will display on an external monitor without you having to do anything.

If you get no video on an external monitor, some laptops have a key combo that you must press to toggle the display to external video only / built in display video only / sometimes both - see the Owner's or User's manual for the model.

If there is nothing wrong with your AC adapter or it's connection and the jack in the laptop.......

Laptop main batteries usually work as they should for a year or so, then they begin to rapidly deteriorate. From what I've seen, by two years they cannot be charged to anywhere near their full capacity, and it gets worse after that.
They often develop internal shorts when they are older. If the battery gets HOT rather than just warm after you have attempted to charge it for at least a half hour, or after you have been using the laptop for a while with the AC adapter plugged in, it's definitely internally shorted and you must replace it. Internally shorted batteries getting too hot have been known to cause the laptop to catch on fire.

Tips about battery charging problems on Dell laptops - may apply to other makes.
See response 3 in this by iTech:

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February 18, 2011 at 11:05:16
i tried to connect my laptop with a flatscreen trough the HDMI cable, but the screen said no signal, and the last part with the cooler, well it starts to spin when i turn the computer on but after a few sec it stops, but if u let the computer be turned on then after half a min. or so the cooler starts to run again. ive never dropped my computer or spilled som liquid on it. (:

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February 18, 2011 at 12:34:49
As I said above....
"If you get no video on an external monitor, most laptops have a key combo that you must press to toggle the display to external video only / built in display video only / sometimes both - see the Owner's or User's manual for the model."

"....the cooler, well it starts to spin when i turn the computer on but after a few sec it stops, but if u let the computer be turned on then after half a min. or so the cooler starts to run again."

Most laptops run the fan initially while booting so that the bios can detect that it is working, then shortly after that the fan stops spinning and does not come on again until the cpu temp is detected by the bios to be hotter than the temp at which the fan is supposed to come on - it cycles on and off as needed.

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February 18, 2011 at 13:30:25
i tried those screen togglee, nothing happened, i even tried to press the fn+sleep to se if it would respond, but nothing happened

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February 18, 2011 at 18:43:40
User's Guide - Display toggle - FN + F5

HDMI is not mentioned for the Display toggle

Apparently you also have a VGA port.
Try connecting a monitor to that.

By the way, you can only connect one type of connection at a time to the monitor - DVI, VGA, or HDMI

From the FAQs found for 5920G, and many other Acer models....

Frequently Asked Questions

Q: Power Issues or Will not Boot


If the notebook does not power on:

Make sure the ac adapter is correctly plugged into the notebook and into the power cord.

If everything is plugged in correctly and it still will not power on, follow these steps to complete a ‘power reset' of the notebook.

1. Unplug the ac adapter. Keep ac adapter unplugged.
2. Remove the battery and keep the battery unplugged.
3. Hold the power button down for 15-20 seconds. (Nothing will appear on the display and none of the lights will light up.)
4. Release the power button and plug in the ac adapter ONLY. (Please note that a power indicator light should be lit on the ac adapter when it is plugged in).
5. Normally power on the notebook.
6. If the unit does not power on, remove the ac adapter and insert the battery into the system.
7. Plug the ac adapter back into the system, the battery charging indicator light will light up.
If the battery charging indicator light does not light up, the ac adapter may not be providing proper power to the unit, and may need to be replaced.

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April 7, 2011 at 07:19:20
This could me a couple of problem whic i will try my best to solve.

(1) Try starting the laptop without the battery, eg, plug the adpter directly into the laptop without the battery inserted.

(2) Do the exact opposite, this time using only the battery.

If the problem persist, that can be a Mobo problem, not overheating, with an overheating problem, the system would stay on longer that 4 seconds, it would stay on for minutes before it shuts down.

Hope this was useful

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April 7, 2011 at 07:26:01
You need to use a FN ( function ) key to get your laptop to display through to your monitor, in most cases it's fn+ F4, F5 or something like that, look for the fn key with a monitoring looking thing on it.

As for the cooler, it's normal in laptops these days, it's and energer saving technology that companies are using now.

Hope this helps

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