Not recognising drives

Hello,



I own a hp pavilion (p6216f), I was playing a few pc games on it while listening to music then all of a sudden my music froze then moments later so did my computer. I immediately then turned it off and turned it back on a few seconds later and it booted up normally but it was moving a bit slower than normal so i decided to turn it off and on again but now none of my drives are being recognised. Ive tried unplugging and plugging them back in, i've even bought a new power supply just incase the old one malfunctioned but still none of my drives are being picked up although they are all getting power. So if anyone has any ideas on what i can do to fix this problem i would really appreciate it