Need suggestions for a mobo+ram+proc combo

[Budget] -RM1000+-

[Purpose] -Mostly gaming (Dota 2, Overwatch, etc) and coding for uni course work

[Hardwares that will be re-use] -R9 280x, ssd, hdd, 500w psu, segotep cube

[Monitor resolution] -1920x1080

[Games & softwares that use frequently] -Dota 2, Overwatch, Netbeans, Cisco Packet Tracer

[Personal preferences] -Need to have M-Atx mobo to fit my case

[Location] KL