If your board is truly an ER sample:
Compatible with older versions of Windows (Windows 7/XP) for legacy software. intel desktop board 01 21 b6 e1 e2 er new
: Typically include one PCIe x16 slot for graphics cards and several PCIe x1 or legacy PCI slots. If your board is truly an ER sample:
" is often found on labels or printed directly on older Intel motherboards. intel desktop board 01 21 b6 e1 e2 er new