Two PCIe 3.0 x16 slots, one PCI-E 3.0 x4 (in x8) slots, one PCIe 2.0 x4 (in x8) slot and one PCI slot support a range of I/O expansion cards and discrete graphics cards for flexible expansion.
That the good news.
Will the flash Bios upgrade make become UEFI ? I doubt it does unless it is UEFI before. and that is a big need to check before getting a 1070 for that system because the GX 1070 video card needs UEFI BIOS. Or it will not run on your motherboard.
Two PCIe 3.0 x16 slots, one PCI-E 3.0 x4 (in x8) slots, one PCIe 2.0 x4 (in x8) slot and one PCI slot support a range of I/O expansion cards and discrete graphics cards for flexible expansion.
That the good news.
Will the flash Bios upgrade make become UEFI ? I doubt it does unless it is UEFI before. and that is a big need to check before getting a 1070 for that system because the GX 1070 video card needs UEFI BIOS. Or it will not run on your motherboard.
looking at reviews and comments on that board, there is ALOT of commentaries about need to use/upgrade to BIOS Version 3.
I would begin with upgrading Bios for sure.
https://www.supermicro.com/support/resources/