This might be a problem with the RAM. Reseating it worked to fix this problem on a Toshiba NB305 that I have. However, the RAM on your computer is soldered to the motherboard. You are going to have to replace the motherboard. Here's a guide: [guide|149298]
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EDIT: After some confusion I found that it is has onboard RAM and another RAM slot. Putting some RAM in this slot may fix this problem as well. You will need 4GB DDR4 RAM.
This might be a problem with the RAM. Reseating it worked to fix this problem on a Toshiba NB305 that I have. However, the RAM on your computer is soldered to the motherboard. You are going to have to replace the motherboard. Here's a guide: [guide|149298]