do the LED in the back stop? They represent the POST progress.
Also worth noting is PSL takes almost 60 seconds before any video is displayed.
It was originally looping but after multiple cmos clearing and switching between banks its showing Red Amber Red and sitting there. I cant remember which way round the off was (left or right) but can take a guess...
0xE4h R A R Off Entered EFI driver execution phase (DXE)
0x72h Off R A R Enabling the video controller (VGA)
Guess the video controller is duff if it sits there?