Screen and proc malfunctions

Milanissimo92

Hi guys! In July 2017 i bought an Aspire E15... performances have been good for long time but now two major issues popped up:
- pixels of the screen are unstable; whenever i recline the screen it gets black and white and takes a while before colors come back in place. The PC did not suffer any fall nor hit.
- the proc often gets stuck for few seconds before resuming its normal activity. It happened also several times per single usage, whatever is the activity ongoing (video, office, web or else).

Do you have any suggestions on how to fix it?
Thanks!

rebit

You need to open the case and check the memory is seated correctly and that the VGA ribbon is attached properly at both the motherboard end and on the screen connector.

Finally if these seem OK you could reapply thermal interface material over the CPU and GPU after removing, cleaning and refixing the heatsink and checking the function of the cooling fan and that the exhaust is clear from dust.