I've recently built my first computer and everything was working perfectly until today, I've had my computer working for a week and one day, i was playing league of legends then suddenly my frames dropped, i downloaded GPU-Z to check my core clock and the max says 1071.0 MHz yet my core clock is running at the lowest, 135.0 MHz and my memory clock is also running at the lowest 202.5 instead of the max 1350.0 MHz. I have dusted my graphics card and checked my wiring, looks like there is nothing wrong but there obviously is a problem if its running at the lowest, anything helps, thank you!