Thinkpad X250 freezes when ac is unplugged.

[sandeep251188]

Hello Friends,
I am facing a weird issue with my Thinkpad X250.
whenever ac adapter is unplugged at any stage the laptop freezes after few seconds & needs the forced shutdown option.
Although it runs fairly well when run exclusively on battery or with ac plugged in.
Pls suggest any remedy for the issue.

Iam currently running win 7 64bit,i5 5300 u processor with 8 gb RAM,1 TB hdd

Thanks in advance

Sandeep

 

[Prostar Computer]

It sort of sounds like there's an issue with the board regulating/switching power plans on the fly. Normally the laptop would drop into a more conservative power state on battery; perhaps it's an ACPI issue.

Can you boot into the laptop's BIOS menu and test for the same issue there? (If it doesn't happen there, it's probably safe to say it's not a hardware/electrical malfunction, at least).

 

[sandeep251188]

THANKS FOR YOUR REPLY..
LAPTOPS RUNS NOMALLY DURING CLEAN BOOT.