Blank Screen

I have just finish installing Astaro 9.003-15 on a 1u Asus KFSN4-DRE dual AMD Opteron Quad core system everything install with no errors then it ask to reboot, reboot went past bios,

Booting Sophos UTM 9.0
Root (hd0'0)
filesystem type is ext2fs, partition type 0x83
kernel /boot/vmlinuz root=/dev/disk/by-label/root vga=791 rootflags=data=ordere
d splash=silent
[linux-bzImage, setup= 0x300, size=0x220d90]
initrd /boot/initrd
[Linux-initrd @ 0x37c70000, 0x3776cd bytes]
blinking cursor -

then all I get is a Blank screen with no activity server is on but screen just blank.

64bit
dual Intel PCI-E GbE LAN
dual Broadcom® BCM5721 PCI-E GbE LAN
VGA: XGI® Z9s VGA Controller /32MB DDR2 VRAM
SATA Controller
1TB Hard Drive
32 GB Ram

ASUS - Server & Workstation- ASUS KFSN4-DRE

Please help need to get this up ASAP
Thanks