Acer 5742 - Ram Upgrade Not Working?

Sep 8, 2015

I had added 4GB ram to my acer 5742 laptop and now it has 6gb of ram. When I added ram windows 8.1 was installed. After than when ever I boot my laptop it just keeps restarting until I boot from HDD. When I was installing windows 10 from ISO file making USB bootable it just keep restarting every time I boot from USB and when switched off the new ram it start booting from USB and installed windows 10 now when I put back its new ram of 4gb it don't boot even from the hard drive.

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