My friend's PC is giving a random problem. The display screen freezes with scattered lines. This happens randomly, sometimes it happens even when the Windows boot process is going on and can happen even after 15-20 minutes after the boot while working on PC. Some suggested it could be dust on RAM, so we have wiped the RAM slot and the RAM of any dust, even cleaned the dust off the mobo, but problem persists. The PC has AMD A4 5300, biostar hi-fi A55S3, kingston 1600 MHz DDR3 4 GB. The PC is not used for any high-end gaming and doesnt has a gfx card.
What could be the problem here? How to rectify that?
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