Question about Acer Aspire 5610-4648 Notebook

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Acer Aspire 5100 black screen, I foolishly reset memory for video

Laotop was working perfectly until I reset memory for video in bios, then black screen, can't remove cmos bat b/c it is soldered to board bios v3.13. Vista Ult. 4gb

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  • Robert Love Dec 07, 2008

    Already removed bat. no results, black screen. Tryed to short cmos bat. w/screw driver,no results, maybe I didn't do it right. All I did was change memory for video frm 256 to 128 in bios, accepted change and hit F10, then bam..black screen. Haven't tryed external screen, but will right now

  • Robert Love Dec 07, 2008

    Not sure I'm that good, but I have a practise board. Any other way around this?

  • Robert Love Dec 07, 2008

    Acer Aspire 5102 Vista 64 Ult. 4gb Crucial. Removing bat and holding power button had no results..black screen..no prompt, no nothing. External screen, same..nothing. This laptop was working flawlessly..then nothing..can't reload anything..no beeps, just the light on the dvd drive flashes 4 times and clicks

  • Robert Love Dec 07, 2008

    Tryed fn+esc and power button. Nothing, unit turned off. Powered back on and still nothing

  • Robert Love Dec 07, 2008

    Have tryed all basics. Will not post w/ or w/out HD. Black screen, no response except dvd light flashes and dvd clicks

  • Robert Love Dec 08, 2008

    Maanita, Can't reset b/c I have black screen. No way in yet

  • Robert Love Dec 08, 2008

    Marked, I tell folks that all the time. This time laptop was working perfectly, I changed the video memory, hit F10 and nothing. I was sitting right in front of machine. There were no power problems, no lightning, no rain. The unit just went black on repost. This is very weird

  • Robert Love Dec 08, 2008

    Okay Ginko, this one I accept.Removing cmos bat. may be the only way. Rad. board obviously balked at being forced. If I blew it, I have another card. Thanks much guys, I assumed all this, was just hoping I was wrong

  • Robert Love Dec 08, 2008

    Haven't tryed blind flash. Flashed this bios with Vista 32 boot disk b/c Acer refuses to give us a phlash 64. Worked perfectly Have never tryed blind flash, don't know how to flash without a post and program

  • Robert Love Dec 08, 2008

    I don't like having to accept this, but welcome to the world of computers is what I say a lot. Don't know how to leave a rating, but you guys have all been helpful. I'll figure out how to vote. Since I see these all the time, you'll hear from me again

  • Robert Love Dec 08, 2008

    This is for all the guys that helped me today. FYI shorted the bios with a screw driver at Jopen1 jumper, pulled the 4gb and replaced w/512mb, 5102 posted and went through a successful boot. Made sure of all bios settings. Checked memory in another 5100. System is running fine w/2.50gb. Won't post with all 4gb. Don't know what it is , but I'm not griping. You folks were great. Went back through all threads and made notes. I'll have another challenge tomorrow, I've got four of these. Thanks again

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Hi, i have similar problems, when i turn on the laptop, it only goes black and no text would appear but later on, there is a sound indication that it passes the loading of os. Where can we possibly fix the problem?

Posted on Oct 27, 2016

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Have you tried the manufacturer tech line? they have email support free of charge. Most software issues are covered for life as far as tech assistance goes, that excludes live assistance, so email only, also have you checked the data base of problems at the Acer web site?

Posted on Dec 08, 2008

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Have you tried checking the cords going to internal gpu? try unplugging them and then booting up and then shutting it down and plugging it back in. that should force the system to reinstall the device. I hope that helps I ran into that problem at the shop once and thats the only thing i could do to get system to boot. remember to remove all power sorces before unplugging anything since the constant 5v.

Posted on Dec 08, 2008

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It sounds like the FSB/Memory module has failed. I have an Aspire 7520, and had the same problem a few months ago with the boot failure. Due to me having an almost identical problem recently, I decided to give Acer a call, after reading your post. They agree that it's more than likely the FSB. It shouldn't have been caused by you changing the memory size, the only way it would have failed, is if it was faulty anyway.

Acer also told me (off the record), that this is a common problem across most of the Aspire range.

The Solution:

Unfortunately, after speaking to two seperate systems engineers, the only solution they can see is to get it tested and repaired/replaced.

Sorry I couldn't be of more help.

Posted on Dec 08, 2008

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  • Acer Master
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To start, changing video memory from 256 to 128 in bios should not affect the native video mode used in post , and also on bios menu.

That means that the video card is not working at all.

What probably happened is that the internal radeon 256 had ceased working when forced to 128 MB.

Try the following:

Connect an extenal montor.

  1. If you have picture on external monitor , restore settings.
  2. If you have no picture, my diagnosis was correct, the video card is not working after it had been forced to 128 MB.
You can try unplugging the power cord and removing laptop battery for ten minutes, this will drain power from the video adapter.

This probably does not work.

The only reliable solution is removing the CMOS battery, that is the thing to do.

You can get the job done at a local repair shop for a small fee, or do it yourself.

Acer Aspire 5100 black screen, I foolishly reset m - 2c9e369.jpg

Find here disassembly instructions: Taking apart Acer Aspire 5100 laptop

Posted on Dec 07, 2008

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  • Ginko
    Ginko Dec 08, 2008

    Be careful if you do it yourself, remove the laptop battery before removing the screws, and try not to touch boards and components.

    Also ribbon cables are very delicate and easy to break.

    Always follow the order in the diagrams, do not force parts, and collect all screws in a cup.

    As usual DIY at your risk.

    Here is an upload of the service manual, pretty useful.

    If Video does not restart after resetting CMOS, then it is a damaged motherboard, forcing the card to 128 may have fried something, weird but possible.

    Good luck.


  • Ginko
    Ginko Dec 08, 2008

    One last thing, before disassembly, test the laptop on an external monitor snd see if it works.

  • Ginko
    Ginko Dec 08, 2008

    And don't do blind flash, that is a last resort, if you mess up the blind flash you fry the CMOS.

    Start from connecting to external monitor.

    Then reset bios.

    Then if it still does not go there is probably a fault. Try blind flash just in this case, it can fix a BIOS fault, but it can also damage furtherly the computer if it fails.


  • Ginko
    Ginko Dec 08, 2008

    Well mate, our solutions were great and you gave the reward to a guy saying: "Unfortunately, after speaking to two seperate systems engineers, the
    only solution they can see is to get it tested and repaired/replaced.



    Sorry I couldn't be of more help."

    That is not great at all, isn't it?

    Have a nice day.

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It seems that a mobo replacemnet is needed here already because of all the symptoms that you have , the mobo is the prpblem here already...

Posted on Dec 07, 2008

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Reset the bios to default setting, save changes and exit and tell me the status.

Posted on Dec 07, 2008

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  • Master
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Hi and welcome to FixYa,

Offhand, let's go back down to the basics:

  • remove, clean, re-seat the memory underneath;
  • remove, clean, re-seat any add-on cards underneath;
  • remove the HD and try booting without it.
Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 07, 2008

  • Louie  Role
    Louie Role Dec 08, 2008

    Appreciate your quick postback.

    But have you tried with only one (1) memory?


  • Louie  Role
    Louie Role Dec 08, 2008

    or a blind BIOS flash.

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HI Thinking about this one I really think the video had nothing to do with the black screen. I would try to things one is reset the power management. Not know exactly what Powerbook you have I will give the most common way. Remove the Battery and the power cord from the powerbook, wait a few minutes then hold the power button for about 40 seconds. Then put the battery and power cord back in and restart it. The second thing to do is boot from the install disk that came with it and run the disk utility. I have also seen bad RAM do this but you would get at least a chime on startup.

Posted on Dec 07, 2008

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  • Acer Master
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Hey,
Unplug the laptop, remove the battery for 5 minutes and try starting again. Try using a external monitor see if you get picture.

Just a start report back with results.

Posted on Dec 07, 2008

  • 3 more comments 
  • Ekse Dec 07, 2008

    Acer laptops are famous for vga failures, but it sounds unlikely in your case. can you solder the battery out from the motherboard?


    I have a service manual for another model I'l look into it and see if it has any instructions for this.

  • Ekse Dec 07, 2008

    press FN+ESC and POWER BUTTON. this function will force the bios to enter a special bios block, called BootBlock. It may start up

  • Ekse Dec 07, 2008

    BIOS Recovery: Boot Block is a special block of BIOS. It is used to boot up the system with 
    minimum BIOS initialzation. The user can enable this feature to restore the BIOS to a successful 
    one if previous BIOS flashing process fails.


  • Ekse Dec 07, 2008



    Comment posted on Dec 07, 2008press FN+ESC and POWER BUTTON. this function will force the bios to enter a special bios block, called BootBlock. It may start up

    Comment posted on Dec 07, 2008BIOS Recovery: Boot Block is a special block of BIOS. It is used to boot up the system with  minimum BIOS initialzation. The user can enable this feature to restore the BIOS to a successful  one if previous BIOS flashing process fails.



  • Ekse Dec 07, 2008

    I will return in around 8 hours sorry, I hope if my solution doesn't solve the problem that someone will have solved it with you by then.

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Hello, When I tried to reinstall windows on a formated drive, after I changed the boot sequence , before starting bios it requires a password. Plese help


Easiest way is to reset the BIOS. If you remove the battery, and leave it unplugged and without it's main battery and BIOS battery, it should clear it.

This is another reply posted by another tech:


Toshiba A215 Password Removal By purpledog1 on Aug 18, 2008
Follow these steps to remove / disable the BIOS (CMOS) Password on the Satellite A210 / A215 (PSAFGx ) models:


1. Turn the computer OFF, if it's on.

2. Remove the memory module cover, on the bottom of the computer.

3. Check the configuration of memory modules in the two sockets. It's necessary to have a memory module present in the outermost socket only.
  • If there is a memory module in only the outermost socket (the one farthest from the system board), then continue to step 4.
  • If there is a memory module in only the innermost socket, move it to the outermost socket.
  • If there are memory modules in both sockets, remove them both, then re-insert one of them into the outermost socket.
4. With the computer oriented as in the photo above, carefully peel back the black Mylar film. Pull this film to the side enough to expose the B500 solder pads (see photo below). Tape the film to the computer's case, as shown. Do not remove the film completely, because it may be difficult to re-attach it correctly.

5. Short the B500 solder pads on the system board. Needle-nose pliers or a flat-blade screwdriver works well to short them.

6. While continuing to short-circuit the solder pads, turn the computer on, and continue shorting the pads until the Toshiba Logo Screen disappears.

7. Re-position the Mylar film over the system board.

8. If you removed a memory module, turn the computer OFF, then re-insert it.

9. Re-attach the memory slot cover.

10. Restart the computer to verify that the password prompt no longer appears. If it does still appear, then repeat this procedure, starting with step 1.


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I want to do reset my BIOS password,How can i do it?


To reset BIOS there are many ways but basically the easy way it the hardware reset.

If you cannot access the machine after if has been powered up, it is still possible to get past the BIOS password. The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.

On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is.

If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.

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You can reset the CMOS by doing the following:

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Hi there.
1. Turn the computer OFF, if it's on.
2. Remove the memory module cover, on the bottom of the computer.
3. Check the configuration of memory modules in the two sockets. It's necessary to have a memory module present in the outermost socket only.
  • If there is a memory module in only the outermost socket (the one farthest from the system board), then continue to step 4.
  • If there is a memory module in only the innermost socket, move it to the outermost socket.
  • If there are memory modules in both sockets, remove them both, then re-insert one of them into the outermost socket.
4. Carefully peel back the black Mylar film. Pull this film to the side enough to expose the B500 solder pads. Do not remove the film completely, because it may be difficult to re-attach it correctly.
5. Short the B500 solder pads on the system board. Needle-nose pliers or a flat-blade screwdriver works well to short them.
6. While continuing to short-circuit the solder pads, turn the computer on, and continue shorting the pads until the Toshiba Logo Screen appears. then remove the short.
7. Re-position the Mylar film over the system board.
8. If you removed a memory module, turn the computer OFF, then re-insert it.
9. Re-attach the memory slot cover.
10. turn on computer, if it boot password has been removed.

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