I have already tried an extra graphics card, but the result was the same ... I do not see anything
I took a based graphics card PCI Express 16X and I turned into 8X with cutting part of the PIN for the slot and then put it in the slot PCI Express 8X of the motherboad SUPERMICRO X7DVL-E. This operation of "cutting PIN" is a very common practice explained in some websites. Have you ever tried it?
And if the problem was the FLOPPY that I never connected to motherboad and so the boot block, possible?