Question about Toshiba Satellite A105 Notebook

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Toshiba Satellite A105-S4048 problem with AC Adapter When I turn the laptop on with the AC adapter, after checking the BIOS freezes and does not boot Windows. If I turn the laptop in only with battery boot and works normally. If I connect the AC Adapter when windows is working, the system freezes I have already changed the AC adapter and the problem continues Can someone help me?

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I strongly disagree, the problem is some bad capacitors on the motherboard near the cpu, If the capacitors fails the laptop circuit charging is unable to supply power to battery.
Replace those capacitors on motherboard and problem will be solved Asap!

Posted on Jan 17, 2013

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There's not much you can do. The problem is definately with your motherboard. I'd recommend a bios update, but normally you can ONLY run a bios update if the battery and the ac are both plugged in.

This problem is pretty common among Toshiba's A105 and P105 models.

Besides replacing the motherboard there's not much you can do.

Sorry.

Posted on Mar 10, 2009

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When I try to boot up my A105 (with battery in or out and AC/DC adapter connected) the battery light flashes yellow 10 times. I've checked the output of the adapter and it is good. Any suggestions?


If you have tested with another adapter with the same results, flashing the BIOS can resolve a power issue.

From the Toshiba website:

http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/outFrm.jsp?ofId=AskIris&searchString=a105+bios&x=11&y=8

Be sure to look at the ReadMe file.

Hope this helps.

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I think you need to do a power cycle. remove the battery and use tha AC adapter alone. If it boots, then thats good. U can try also booting on safe mode by pressing F8. Then re start the notebook in normal mode. If it wont works then i think u need to reinstall windows as a last resort. U need to use TOSHIBA RECOVERY DISK this time.

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Toshiba Satellite Laptop Power Failure (A105-S1013 System Unit)


Okay, lets troubleshoot this:
1)Does your laptop run on battery alone ?
yes )test your jacks continuity to the motherboard using a continuity tester or Digital Multimeter.
a)test between the center contact and the motherboard.
b)test between the outside metal cover of the jack ,and the motherboard.
c)If either of these fails continuity,replace the jack.
2)does your laptop now power up on AC ?
yes)Stop
No)Try the BIOS upgrade.

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1 Answer

Toshiba Satellite A105 PC Notebook


When you turn it on, do you hear any activity? Motors start working, fan spinning, etc…? Try to connect an external monitor and start the laptop. Check if you can get any video on the external monitor. If the external monitor is dead too, try to remove the battery and start the laptop from the AC adapter. It also might be a bad memory module or a bad connection between the memory and the motherboard. Try to reseat the memory module, move it to the second slot. If you have two memory modules, try to remove them one by one and turn on the laptop. Also, try to remove the hard drive and see if you can boot it to Toshiba screen without the hard drive installed.


There is no special button to reseat the BIOS settings. To do it, you’ll have to access the BIOS using F2 button on the laptop start up, but as you have no video, you cannot access the BIOS and set it to defaults.
I

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