W700 : SOMETIMES DON'T REBOOT AND BIPS

[Aboulafia]

Hello, a lot of problem with my W700  2758-4SU three months old !

Sometimes, when i reboot the laptop, it doesn't reboot a make 1bip+3bip+1bip+3bip like memory problem - says the manual-

If i shut it down, all comes back to normal.

This is four times in fews weeks that this problem appeared.

I ran Pc Doctor : no problem detected

I ran memory test (from Linux distribution) 2 pass : no problem detected

I ran all the test from recovery & backup cd : no problem detected

Motherboard good for the trashcan ?

Thanks for your help