What do you mean by the keyboard light is blinking?
Also try removing all the memory sticks from the system then try turn it on, if you get different results i would say put 1 stick at a time, and try to narrow it down to see if its the stick or the slot.
If you get the same results as you have been getting, remove all other device, hard drive, and optical drive. if issues continues you may be looking at a bad motherboard.
What do you mean by the keyboard light is blinking?
Also try removing all the memory sticks from the system then try turn it on, if you get different results i would say put 1 stick at a time, and try to narrow it down to see if its the stick or the slot.
If you get the same results as you have been getting, remove all other device, hard drive, and optical drive. if issues continues you may be looking at a bad motherboard.