hm67 is a second-generation processor board, and hm77 is a third-generation processor board. According to Intel's official 6 Series chipset and C200 series chip Datasheet Parameter manual, HM65 and HM67 differ as follows:
1. The HM67 supports up to 14 USB2.0 interfaces, and the HM65 supports 12. 2. The HM67 supports the RAID0\/1\/5\/10 disk array technology in INTELRST technology except that other parameters are exactly the same, and these differences are meaningless for notebooks.