Joy 
and you know what my first response is 

Resolved that by adding boot time parameter 'initcall_blacklist=clocksource_done_booting this is a known issue and effects other hardware as well, a newer kernel is supposed to fix it
and as krisden did above edited isolinux.cfg from:
label linux
  menu label ^Install Koozali SME Server 10
  kernel vmlinuz
  append initrd=initrd.img inst.stage2=hd:LABEL=SME\x20Server inst.ks=cdrom:/dev/cdrom:/Packages/base/sme-kickstart.cfg quiet 
to
label linux
  menu label ^Install Koozali SME Server 10
  kernel vmlinuz
  append initrd=initrd.img initcall_blacklist=clocksource_done_booting inst.stage2=hd:LABEL=SME\x20Server inst.ks=hd:/dev/sdb1:/Packages/base/sme-kickstart.cfg quiet
Now have a running Koozali SME Server 10, server only mode, on my N54L test box that has only seen VMs of late 

  now to reconfigure box back to using prox 

 details added to bug krisden raised.
Added: Wiki 
https://wiki.contribs.org/SME_Server:10.0Alpha3#Notes modified re USB install not supported in this release
Didn't have the network problems