Thanks very much for the advice. I'll give the 1600 a go then, it comes with the heatsink and fan and is cheaper than the ryzen 5 1400 at the minute. I will be longer without a PC if it doesn't work but I think it's worth a shot :)
My Dell Inspiron 5675 desktop came with a ryzen 3 1200 cpu. I recently broke the cpu (long story) and i wanted to upgrade a little while there's reason to however I don't know which cpu's would need a BIOS update to run or if some would perhaps run basic functions just enough for me to download...