chip Z50-70 problem reboot / restart issue and 8 GB ram

Salvation;
I have lenovo z50-70 notebook with Intel i7, 8GH RAM and 250 GB of kingston SSD
The bios of the laptop is v.29
I installed win 7 PRO 64-bit operating system.
The system has worked well for about 2 weeks. After this time I noticed the strange question - the laptop is unable to boot from the disk hard when restarting/rebooting the system is used. It breaks down screen goes black and then the cell phone tries to do something (Lenovo logo at all), goes down and repeat for infinity.
When the pxe boot is enabled the system constantly trying to boot from pxe. anoint and once again.
I can only close the laptop to the power button and restart. It seems that the system does not recognize the hard drive during the reboot process.
When I stopped the system (down) and leaves - everything works fine and the system starts normally without any problems.
I also noticed one other issue - the laptop does not recognize the 8 GB of ram chip. (kingston 8GB PC3 - 12800 CL11 204 pins SODIM). It is little matter if I use this RAM, alone or with other RAM - laptop chips recognize only 4 GB or 2 x 4 GB. I tested the RAM 8GH in other laptop (dell and benq) and it works fine, only Suur z50-70 a problem with it.
I don't know if the ram and restart problems are related to each other, but both of them seems to have problems hardware or bios.

Any help will be appreciated

Hello
I solved the problem by upgrading the SSD firmware.
I used the tool of kingston for upgrade (for ssd SV300S3 series):
http://www.Kingston.com/us/support/technical/downloads?product=SV300S3&filename=V300_525fw_Win

The upgrade process takes a few seconds and after that, everything works fine. I've done a few reboots and I can't reproduce the problem.

Tags: Lenovo Notebooks

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