blinking red lights

So recently I built my brother a PC and at very random times it'll turn off the monitor, keyboard, and mouse while fans/lighting are running as the title stated. But it also displays red blinking lights on the MOBO with a long on RAM and a short on CPU. Afterwards it runs normally if I restart...

Just Bought a new computer from cyberpower. Right out of the box issues with the video card. The second I run any game or any type of significant load on the card 1 to 3 blinking red lights over the power connectors begin flashing and will not stop until all power is cut from the computer. I...