Hello to All
İ have an lenovo ideapad 110-15ibr with an motherboard cg520 mn-a804 rev 1.0 the problem is that ;
When i were surfing over internet (windows 10) laptop stoped responding , so i forced power off with power button keep pressed , after when i try to power it on, its ggetting power on but with no display then powers off after an few (4 ~ 10) seconds and always like this, i take out motherboard removed all power, bios battery and keep pressed power button 30 or may be more than 30 secs, but no change, i measured all the voltages of all coils, all are ok and present (3.3v,5v,1.35v,1.8v,0.9v , 1.05 no any mising voltage on all coils) i also flashed 2 different bios with an external spi flasher but all same symtoms, power on , no display after an while powers off.
At this sutiation mainboard consume 0.16A ,then when goes off current goes 0.01A (when you plugged adapter or psu , mainboard drains 0.02A then start to autopower on then goes to 0.16A then goes again 0.01A and powers off and this is like that cycle untill you press power button again, with all bios i flashed are same as well , but what i noticed is that, when you remove bios chip from the motherboard, and connect power , the system is powersnon again and newer powers off, it stays like that untill you cut power and that time current drain is about 0.20 - 0.22A , and this is so strange, when you re program bios chip and put back , its again 0.16A powers on and then off 😀😃😄 , what may be the problem ?? What to do next??
NOTE: There is no blown or damaged chips or components on motherboard , also there is no short circuit, the mother board also has onboard ram , (there is no ram slot as well to put any ram, ) and onboard celeron cpu, also i could not see an HM and GPU chipset on mother board , i think all is in cpu. Also even cpu has not an cooler fan 😀😃😄 only with an crappy heatsink
What my be the problem?? Can be an defective on board ram problem??
İ have an lenovo ideapad 110-15ibr with an motherboard cg520 mn-a804 rev 1.0 the problem is that ;
When i were surfing over internet (windows 10) laptop stoped responding , so i forced power off with power button keep pressed , after when i try to power it on, its ggetting power on but with no display then powers off after an few (4 ~ 10) seconds and always like this, i take out motherboard removed all power, bios battery and keep pressed power button 30 or may be more than 30 secs, but no change, i measured all the voltages of all coils, all are ok and present (3.3v,5v,1.35v,1.8v,0.9v , 1.05 no any mising voltage on all coils) i also flashed 2 different bios with an external spi flasher but all same symtoms, power on , no display after an while powers off.
At this sutiation mainboard consume 0.16A ,then when goes off current goes 0.01A (when you plugged adapter or psu , mainboard drains 0.02A then start to autopower on then goes to 0.16A then goes again 0.01A and powers off and this is like that cycle untill you press power button again, with all bios i flashed are same as well , but what i noticed is that, when you remove bios chip from the motherboard, and connect power , the system is powersnon again and newer powers off, it stays like that untill you cut power and that time current drain is about 0.20 - 0.22A , and this is so strange, when you re program bios chip and put back , its again 0.16A powers on and then off 😀😃😄 , what may be the problem ?? What to do next??
NOTE: There is no blown or damaged chips or components on motherboard , also there is no short circuit, the mother board also has onboard ram , (there is no ram slot as well to put any ram, ) and onboard celeron cpu, also i could not see an HM and GPU chipset on mother board , i think all is in cpu. Also even cpu has not an cooler fan 😀😃😄 only with an crappy heatsink
What my be the problem?? Can be an defective on board ram problem??
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