Hi there
need help diagnosing this problem i am currently having with this laptop.

Its a Toshiba A200 and about 18 months old, the laptop sometimes powers on showing blue power, hdd indicator. sometimes shows a orange indicator on power indicator. besides this when it starts sometimes it shuts off like a power cuts off and then starts again automatically. its hard to find out what it could be. as i have tried switch ram sticks around,
tried having 1 memory stick (switched between slots)

can someone guide me please.