How can I tell a RAM memory issue or motherboard issues?

[Fancois]

My system is been acting out, after several attempts, I tough the blue screen issue was solved. I have cleaned up the memory dump, and replace the AC adapter and I also order a new battery, come to realized now the AC adapter would not lid up and system gets locked that I have to do a hard reset, after rebooting it gets stuck on the spinning dots and I have to reboot it again, this time did not get a blue screen, I have ran all tests with the assistant but no issues found. 

Any ideas or suggestions?

Please let me know

Thanks

[Repairatrooper]

I would run the memory test from the BIOS so that you eliminate the OS as a possible cause.

[Fancois · Accepted solution]

Hello,

I've tried to unplugged the AC adapter, removed the battery, that was not helping, decided to use a newer cable that came with the AC adapter I bought and connected it to a different wall power plugged it in and got a yellow LED light. meaning the battery was fully drained. Reboot it and run AC adapter test and a mother board test and found no issues. I believe once I get the new battery replacement will fix the issue with the power supply.

Thank you for your advice.