I recently just purchased a 650W psu to replace my old 300W as i want to upgrade my graphics card. I followed instructions given to me in the booklet, and looked at many youtube videos to help me through the process. However, when i boot up my PC, i get an error telling me to reboot with proper media, or something along those lines. Basically meaning I don't have an OS to access my computer. Everything else is receiving power, the Disc drive is working perfectly fine, just not my HDD. I have a SATA HDD and the same type of cable is used to power up my disc drive. I'm fairly confident everything is plugged in perfectly fine and i need a solution to this problem, has my HDD broken? Also plugging in my old PSU doesn't work either. Thanks.
