The motherboard you ordered is ddr3 and you got ddr4 ram.
Also, psu came with a broken sata cable, would i need to get a molex to sata now to work around this?
Can do. Or 1xSATA to 4xSATA, depending on whether the PSU has another SATA cable available:
My basket at Overclockers UK:
- 1 x Silverstone 4-pin Molex to 4x SATA 30cm Extension - Black= £8.99
- 1 x Silverstone SST-CP06-E4 Flexible SATA Power Cable 4x Connectors with Capacitors= £6.95
Total: £21.96
(includes shipping: £6.02)