Can i replace my lenovo g580 20157 motherboard with a g580 2689 motherboard that uses the intel hm76 chipset? Cause i tried a core i3 2350m in my notebook and it worked fine, just shutsdown every 30minutes. Then i found the intel hm70 chipset is limited to celeron and Pentium dual core cpu's. Mine also only have one ram slot? Is that normal?