Solved How can I fix this not-working computer

November 3, 2016 at 21:36:44
Specs: Linux , 2GB DDR3
My fan and CD drive is working, I tried removing the ram and holding power button for a minute, but it won't help, no display screen is showing up, please help me :(

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✔ Best Answer
November 11, 2016 at 10:29:27
Jig,

Yes, I recommend that you take it to a repair shop. Your descriptions
of what you are observing are not accurate or clear enough for us to
diagnose the problem in a reasonable time. The shop might be able to
find the problem while you wait. If you are lucky, they might be able to
fix it while you wait, too.

-- Jeff, in Minneapolis



#1
November 3, 2016 at 22:29:58
Desktop or laptop? Model/brand specs?
is the CPU fan running?
Is the Video module on the motherboard or a PCI extension board?

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#2
November 4, 2016 at 08:09:15
Laptop sir, my fan is running and my laptop is acer4740G, Mr. The recent problem of my laptop is still the same, I didn't use this for 1 month until I thought of opening this and luckily it worked, but now it happens to be the same problem again :( it won't open anymore, help me plss :(( *me cryin

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#3
November 4, 2016 at 08:20:50
Let's go back a step...

You removed (and I hope re-installed) the RAM... Why?

When you removed the RAM... was the battery installed (and presumably charged up); was the power cord attached and switched on at the wall outlet?

Whenever you go inside "any" computer - laptop or desktop/tower - ensure there is NO power attached nor any battery installed (if dealing with a laptop).

Remove power cord and battery; remove the RAM. Clean the edge contacts with a soft pencil style eraser. Ensure the edges of the sticks are clean/clear of any dust etc and then re-install the RAM carefully.

Re-install the battery and connect power adapter and switch on. Does the hard drive spin up or its indicator light show signs of activity?

Does anything appear on the display screen - even if briefly? If so what is it?



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#4
November 4, 2016 at 08:57:09
Mr., sadly I'm not using batteries while using this, I just plugg the charger and so it goes normally, i'm just using this without battery. If you search for my model of my laptop , you'll see that there is a orange light in the right side of that laptop, it seems that is my problem, no orange light showing up on my laptop right now just the blue one which is the color of the power icon (hope you'll view any videos about my laptop and see the orange one) by the way, I done re-installing the ram, and it seems that won't help. I watched many videos on YouTube, I followed all of it but still the same, I'm just 17 yrs old teen trying to understand the situation and follow all of the step of yours. Any suggestion?

message edited by Jig


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#5
November 4, 2016 at 11:11:14
I have looked at the service manual for your model Acer.

The only blue/orange lights are on the front to the left of centre?

There is one that is orange when the battery is charging; and it goes blue when the battery is charged and the laptop is actually running on AC mains. If there is no battery installed then logically I don't see how or why there would be an orange indication.

What happens if you re-instal the battery?

Also this information is the basic user manual:

Nothing appears on the screen.
The computer's power management system automatically blanks the screen to save power. Press any key to turn the display back on.

If pressing a key does not turn the display back on, three things might be the cause:

• The brightness level might be too low. Press <Fn> + < > (increase) to adjust the brightness level.

See if the above extract is of any help?

• The display device might be set to an external monitor. Press the display toggle hotkey <Fn> + <F5> to toggle the display back to the computer.

• If the Sleep indicator is lit, the computer is in Sleep mode. Press and release the power button to resume.
______

This is a link to the user manual - not the service manual.

https://www.manualowl.com/m/Acer%20...

message edited by trvlr


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#6
November 4, 2016 at 18:11:14
Mine is Acer 4740G travel mate not a aspire, as you review , there is an icon on top of the orange one , I don't know what icon it is, but that is my problem, it seems that orange one refers to light when screen shown up, Mr, do you know the 'launch startup repair?' If you get me, that is the one I saw when this opened luckily, but i'll try the HDMI thing, I tried all of the steps in fixing black screen on YouTube, but they use different model so I don't actually think it works. Any suggestion?

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#7
November 4, 2016 at 20:06:55
Is your impression that the operating system is starting up
normally, and something is wrong with the video, or is your
impression that the operating system is not being loaded?

trvlr asked what, if anything, shows up on the screen.
That is a very helpful diagnostic.

-- Jeff, in Minneapolis


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#8
November 4, 2016 at 21:34:58
The first one, why?

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#9
November 4, 2016 at 22:53:06
If the operating system is starting normally and there is no video
at all, then we can rule out problems with the power supply, CPU,
RAM, and hard drive. The problem is either with a video setting,
the video screen, video controller, or a connection between them.

-- Jeff, in Minneapolis


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#10
November 4, 2016 at 23:08:30
Maybe I'll just bring this to a repair man then, no choice, i don't have enough tools to disassemble this. By the way, thanks for trying to help me. I can't do this anymore.

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#11
November 5, 2016 at 07:08:11
This is the manual for your model:

https://www.manualslib.com/manual/1...

The blue light (top right is an indicator for when the wifi is operating (normally blue when it is "on").

The orange light is the hard drive indicator. This will usually be flashing when the drive is active; and certainly will be lit when the system is booting up.

These two indicator lights are just below the on/off switch.

Front edge to the left of centre are two lights; one showing the battery charging and the one the that mains adapter is plugged in (and obviously switched on/powered up).

When the battery is fully charged that orange light usually changes colour to match the other one. On your Travelmate it seems that will also be blue.( On my very olde Aspire the power light is green and the battery charge indicator goes from orange to green when the battery is fully charged.)

Have you tried re-instaling the battery and seeing if things work; not the least if the battery appears to start charging?

When you power up the laptop are there "any" noises - beeps at all? If so what, how many, beeps do you hear?


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#12
November 5, 2016 at 07:14:53
There "may" be a problem with the power adapter.. It may not be delivering the correct voltage.. Is there a chance to try another one in its place?

Also - and this is something to consider before you take it to a repair shop - Is there anything on the hard drive that you'd like to save; stuff you don't have saved elsewhere - not on the hard drive?


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#13
November 5, 2016 at 08:58:23
No, I'm not using any battery, I'll just attach the adapter and so it goes. So the problem on it is the hard drive, can you help me on how to fix this hard drive that is not active? My fan is working CD drive is also working and there's no problem on power, it seems the hard drive is the real problem, help me how to fix this.

message edited by Jig


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#14
November 5, 2016 at 10:39:41
Here's the specs: https://www.cnet.com/products/acer-...

A bad HDD usually will not prevent a computer from starting, but it will prevent it from booting into Windows. If you're seeing absolutely no display on the screen, not even the ACER logo, it's unlikely the HDD (or the RAM) is to blame. Could be the graphics chip is bad, or the screen is bad, or the ribbon cable connecting the screen to the laptop is bad.

Looking at the manual, it shows two LEDs just above the DEL key. The one on the left is for wireless, the one on the right is for HDD activity. Just above them is the power button. On the front edge of the laptop, just to the left of the touchpad, is the power indicator & the battery indicator.

Why don't you have a battery installed? It's not necessary, just wondering why there is none.

Here's a link to the service manual. Chapter 4 is Troubleshooting. Start on page 75 of 166:

http://dl.owneriq.net/9/9b477472-2c...

message edited by riider


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#15
November 5, 2016 at 11:25:53
Something to try and it will test the system out more or less fully. You will need another working computer obviously for this.

Go to ubuntu.com. Download the ISO for ubuntu. Burn it to a DVD.

Boot your TravelMate with the DVD.

If it doesn't boot - because it doesn't see or know the DVD is there, then reboot and press F4 as soon as you hear the fan start up...; you may have to press it a few times. If I'm correct (and it's been a long time since I booted a laptop that way, so my memory may be wrong) it will ask if you wish to boot from cd/dvd, or will simply boot regardless from the dvd (in your case).

If it does boot and starts to run from the DVD, it will instal ubuntu into RAM only; do NOT opt to install it to the hard drive (presuming it finds it).

If it does boot and load ubuntu OK then it will arrive at a windows style desktop.

If you get that far, then you can go look for the hard drive; it will be shown as a resource for ubuntu. If it finds it and you can access its contents, then the hard drive is OK.

If it (ubuntu) boots up but doesn't find, or you can't access, the hard drive, then it does tend to suggest issues with the hard drive. It may simply have become disconnected from its connector; it may not be registered in the bios; or it may have died (not top of my list at this time).

If it boots (you hear the cd/dvd drive working for a while... but nothing on the display then possibly you have a problem with display - the adapter may have a problem or the ribbon cable may have become disconnected.

Booting a computer with the ubuntu dvd is a good way to test the whole system's hardware; especially laptops.

I have to say I'm suspicious about the power adapter.. They have habit of dying when they feel too. Just because a few indicator lights flash or remain on doesn't mean the adapter is OK... Often an adapter can provide enough output to spin up (briefly) the cddvd and light indicators lights, but not actually boot up and run the system.

Install the battery and see if it will charge up.. If it doesn't then try another known to be good power adapter; or get someone with a test meter to check the volts out on your adapter.


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#16
November 5, 2016 at 11:43:22
Jig,

Why do you now say, "So the problem on it is the hard drive" ?
Nothing you said before suggests a problem with the hard drive.
What makes you think the hard drive is "not active" ? You seemed
to indicate previously that the computer starts up normally, but
something is wrong with the video.

-- Jeff, in Minneapolis


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#17
November 5, 2016 at 12:05:15
One should remember too that once the system has booted (even if you can't see it on the display) the hard drive will likely then not be very active; as there will be nothing happening to cause it to spin up and the indicator light show since no-one is actually using the keyboard/mouse or any apps/utilities...?

One should also (again) check that the display hasn't ben set (via the appropriate F-key) to show on external display only. Have you checked this aspect, and also perhaps connected an external display and then gone through the three F-key options re' the display?


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#18
November 5, 2016 at 21:59:26
Jeff root,

Because HDD indicator in my laptop is not showing up, so i think that's the no. 1 problem.

Riider
Trvlr
Jeff root,


thanks for giving the guide and helping me. Now I'll try to understand on how to fix this hard drive. Cheers to you guys :).


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#19
November 6, 2016 at 00:44:43
Jig,

You're zeroing in on exactly the wrong target.
If nothing at all shows up on the screen when you start the
computer, then the problem is definitely not the hard drive.

-- Jeff, in Minneapolis


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#20
November 6, 2016 at 05:16:44
#19, true!
The machine's BIOS supplies the post screens and would come up before the hard drive is accessed. If they do not show up then either the machine is not booting at all or (more likely if you see any change in lights or sounds) there is a problem with monitor, cable, or video circuits. Trying an external monitor would be the easiest first step here as mentioned above. If the external shows nearly anything then I would check the thin ribbon cable that runs from the motherboard, through the hinge, and to the monitor at the back.

You have to be a little bit crazy to keep you from going insane.


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#21
November 11, 2016 at 06:01:21
Guys,

What if it leads me to launch start up repair, the n I just leave it until it finish, but then it start to shut down, and it happens that it won't turn on. What is the possible problem? A bios? Should I take it to repair shop?


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#22
November 11, 2016 at 10:29:27
✔ Best Answer
Jig,

Yes, I recommend that you take it to a repair shop. Your descriptions
of what you are observing are not accurate or clear enough for us to
diagnose the problem in a reasonable time. The shop might be able to
find the problem while you wait. If you are lucky, they might be able to
fix it while you wait, too.

-- Jeff, in Minneapolis


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#23
November 11, 2016 at 12:22:59
Also if you take it to a repair shop - ensure they safeguard your personal files etc. - before they do anything to the hard drive itself in terms of re-installations... Otherwise you will likely lose all your personal files. They will need to back them up; and if they know what they're at they will be able to do that.

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#24
November 11, 2016 at 20:42:32
Okay
Thank you very much
Godbless!

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