Devicemanager

Hi All, I have a Dell T310 with a perc h710 raid with 4 1tb drives. Bios was configured UEFI. I change the bios to non uefi and set my usb drive to boot. All went well and found my synology popped right up. The software wants to run thru the setup but also wants to perform an update with no way around. I have the .pat file on the USB and have tried to perform the update with no luck. Error 35. I have a feeling it's my disk configuration. Any ideas? Thank you!