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XPS L521x - Black screen after memory upgrade

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Morning all,

I bought an XPS L521x last year, and i've decided to do a memory upgrade with recommended memory from crucial (8gb -> 16gb).

Since then, i've had two problems, one which is pretty serious - the laptop takes 5-10 attempts to boot, i press ON and i just have a lit up keyboard and front light but a black screen. I have to keep holding down the power button and trying over until it boots. Has anyone had issues after upgrading the memory? I can get it to boot it just takes ages - and windows 'event viewer' shows nothing, and 'MemTest' passes 100% on both modules.

The other issue i can live with - but it's annoying :) I can't install the NVidia GEForce 630M drivers, when they are installed i get a screen that looks like it has tearing issues, it just flickers in an unusable state - unless i plug into the display port! Really strange! I've found a few forum posts on it but any order i install results in the same problem. Like i said not important yet but annoying.

Any thoughts?

E


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