07-13-2009 12:40 AM
I have this 3000 N100 laptop for over a year now with no problems (except the lousy battery which died in 6 months and I'm running on A/C since then). Last week I started laptop and this shutdown problem started appearing.
Now I wonder where the problem may lie. Is it motherboard? What part of board might be getting heat? Or is it actually heat? Or do I need to get certain parts (capacitor, I/C or something) on Motherboard replaced? Any help? Comments? Suggestions?
Solved! Go to Solution.
07-13-2009 07:11 AM
I have been having this same issue the past couple days. I power my Lenovo laptop up.. it will boot into Windows XP.. then after 2-3 minutes - it will shut down. If I try to boot up again, the same process repeats.
It is running on A/C now and still does this ... could it be a battery issue still? This would be the third battery that I purchase for the laptop since I bought it new.
07-13-2009 12:18 PM
Did you clean the copper fan grill from the dusts? Plus just check the power connector on Motherboard. I came cross a problem with HP, Before all the connector was gold plated but now it is not, so it gets rusty,. Just scracth with sharp metal and re-solder the legs, see what happens? also same problem occure with power button. Make sure do not leak any solder or short the other parts at soldering process. Goodluck.
07-13-2009 11:12 PM
Can rusty connectors be the real cause of this random behavior? I ask it because opening and resoldering on mainboard is a big task and I want to be sure that it's actually the problem.
Personally I find no reason that rust would sometime let machine run for hours and sometime would kill it in 3-5 minutes consistenly. Why won't it kill during boot or just after being powered on? But if you've some reason, I'll definitely try it and share findings.
Meanwhile, anybody with any other explanations/suggestions?
07-13-2009 11:31 PM
See my post in the "Power Management problems" thread.
The previous owner of this laptop was experiencing random
shutdowns also with the bad battery. Before I replaced battery,
I ran it with the battery out with no shutdowns.
I think there is something in the charging circuit that is triggered by
the bad batteries, and causes alot of these problems.?
07-14-2009 11:11 PM
08-12-2009 01:39 PM
This is definitly not an overheating issue for me either as I have cleaned out all fans & heatsinks. I have also applied arctic silver 5 paste to CPU. Temps are usually running under 40 deg C.
I have been having the very same issues. I have tried changing CPU, memory, charger etc. I have found laptop will just turn off much more often with the battery in than out. I haven't tried a new battery yet but doubt this will solve any problems.
I'm sure this is a fault with charging circuit as you have said AH_Lenovo. Has anyone else managed to sort this kind of fault out yet?
AH_Lenovo have you tried resoldering & cleaning contacts? If so has it helped?
08-12-2009 02:24 PM
Have been reading through more of the forums & found this solution that seems to work without the battery - AC power only.
I don't know if a new battery would make a difference?