Repair boot loader

There is no csm. I can enable uefi in the bios but it won't boot the usb stick with installer. I've tried using a cd but after install it still doesn't boot even with uefi enabled in bios. Don't understand why enabling uefi seems to make no difference. Must just be a crappy intel mb.
 
I've now ditched this intel mb as despite it having vt-d vt I/O and uefi enable option and tmp its completely useless to test out as a server as it never seems to work as it should. I hoped the q35 chipset would help me experiment with gpu passthrough in proxmox before I decided to splash cash on a proper server system. Unfortunately it's been a failure for that.
I've thrown back in my old dx2400 which could install proxmox no problem. Unfortunately due to its g33 chipset it can't do any passthrough though.
 
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