All,
I've a perfectly working triple boot (OSX 10.9.1, Windows7 & Ubuntu 12.04.3 LTS) setup on following hardware: -
1) Mobo - GA-H55M-USB3,
2) LGA1156 i3-540,
3) Default boot OSX on 250GB Samsung SSD 840,
4) Windows7 & Ubuntu were installed on different partitions of a 1TB hard drive...