I live in UK and in old council flat. In UK most of the broadband and electrical systems are ancient. I don't know much about electrics and fuses so please advice me with following to not burn my house down.


MY first rig with:
 
750w 80 plus corsair gold psu
2 x R9 280x undervolted 1.087
Intel core 2 duo e4400 2.0ghz 4gbram.
MSI p35 Platinum mb
4gb geil 800mhz ram


and I am building other rig with

AMD fx6300
3x R9 280x (gonna undervolt as well)
8gb corsair 1600mhz ram
Asus extreme 4 970 motherboard
Evga 1300V 80+ gold PSU

I am going to plug the 2nd rig in different socket but is this overall setup can blow up my fuse and burn down my house?

Any advice appreciated...