08-23-2010 03:10 PM
I am using Toshiba Satellite L300. I just used it for 2 years already.The problem is when I connected to the power supply my laptop suddenly restart or the laptop gets stuck(cant do anything, even switch off the laptop),but when I connect to the battery only without using power supply, my laptop working perfectly. I try remove the battery and used only power supply but the same problem occur. I am also change the adapter. The problem still happen. I can used the laptop only using battery.
I am running WIndows 7 but I have tried it using windows xp and got the smae result. Can anyone help?
08-23-2010 07:12 PM
Hope this helps it is a post of mine from here http://laptopforums.toshiba.com/t5/Batteries-and-P
Re: Laptop will only run on battery, freezes when the AC is plugged in.
I have had this problem for some time now on my Toshiba Satellite a205-s4607. I first had some random shutdowns here & there a about five months back. I cleaned the dust out of my laptop & did some virus scans. I had been seeing programs unresponsive as well as it was starting to shutdown or freeze when I walked away (This was NOT hibernation or Sleep mode).
I then noticed when I had NOD32 scanning my Hard Drive, Defragging, or Burning something it wouldn't freeze or shut down. So, I usually just kept NOD32 scanning at all times & was good until a month ago. Then it started freezing anytime it was plugged in (Very Annoying!!) It still charged my battery, but that was it. Next I did a fresh reinstall of the OS on battery power. Then I checked my original power cord & it is putting out the correct voltage. My DC Jack was a little loose & I noticed if I held it in a certain position while it started up it seemed ok for a bit. So, I bought a new jack & installed it for $5 & I checked the voltage on the CMOS battery which was fine at around 3volts.. The problem was still there when I put it back together. Then I started reading a lot of forums & found this one.
Chrischungs suggestion of
In SafeMode Goto control panel--> device manager---> goto processor----> disable one of the two processors --> reboot normally. This FIXED the problem, but 1processor is not really a great fix; more of a work around.
Well I decided now that I had a fully charged battery & running on the power cord for Around an hour; that I would RE-Enable the processor that I had previously disabled & Now it is WORKING LIKE it should with the power cord & both Processors.
The only thing is; keep your laptop in the sleep, hibernate state or just leave it on; otherwise you will have to In SafeMode Goto control panel--> device manager---> goto processor----> disable one of the two processors --> reboot normally. You can also go into bios & disable your processor there instead of SafeMode.
There are a lot of people with this issue I have found & with many different Brands of laptops, I am guessing that most if not all people have Core 2 Duo processors or multi core. I am happy for having this fix I just hope it lasts, I have been running on the power cord for 5 days with No FREEZES & both Processors. Give it a try & see if it works for you!!
I was updating Windows & it required a restart; I was still running on 2 processors & power cord, so I disconnected the power cord & restarted on battery. I then let all programs load & about 15 min later used the power cord with both processors. A bit later it Froze on me. I had to go through the process again of disabling the processor & all.
So, I recommend if you are installing software or doing Microsoft updates & all it is good to only run on the 1 processor or you will have to repeat the process & wait about an hour or more before enabling the 2nd one.
Hope this helps & someone finds a REAL fix.
02-05-2011 10:49 AM
i will try this...
the same situation here the way u described. now it doesn't work 5-10 min in normal mode with adapter....
i just failed to understand its behaviour..
never thought of 2core problem.. it just like a heart problem which i never like to think..
but thank God for somewhat easy solution..
hope company can find some real fix...
thank u thank u thank u thank u thank u..
1st let me check...
06-24-2011 10:53 PM
this problme not related , bios or program issue , absolutly inside some components need to replace .
for - toshiba admin - i can provide 100% perfect solution for this problme
08-16-2011 01:17 AM
My 3yr old M200 restarts if connect it to AC power adaptor. I tried 1 processor and all the solutions described above but no help. Can anybody post a proper solution?
Thanks in advance,
07-02-2012 04:49 PM
its nothing to do with the processor its the mainboard problem
its the NEC chip on the mainboard that is faulty so
you need to replace it with 4 IC chip reading 220 capacitance
I try it and it works fine with the power connected
if you want to repair I can assist
09-20-2012 02:23 PM
hello sir , this is problme related to NEC cap , you can see below post . i have a good idea . 470 uf + 4 capacitor add parell way to that section , this problme will solve
06-23-2013 12:09 AM - edited 06-23-2013 12:10 AM
Good Day to you,
As per instruction,I have disabled one of my processor and was working fine. I never turn on the disabled processor after that but now my laptop is turns off when I plug in the power. It is not happening everytime. sometimes it is working fine sometimes not. I changed the charger, but not solved.
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