MSI K8N Neo won't post

Hello,
I have a new MSI K8N Neo with AMD64 3200+, tried it with several memory modules
(in minimal configuration: MB + RAM + KB + video + 350W power, no case) but the
system always shuts down after a few seconds. I know the 350W is a bit low, it
will run on 500W once it is replacing the MB in my current workstation but I
don't think this can cause the system to die so early and always at the same
point.
The last combination on the diagnostic LEDS I see is always 1 and 4 green which
according to the troubleshooter on
http://www.msicomputer.com/support/sup_tshoot.asp#1_2 means "BIOS Sign On".
Does this mean my BIOS is corrupted?
Is there any way to do an emergency flash?
Thanks in advance.

Marco van der Slot <mvdslot RemoveThis @toegangvoorallen.nl> wrote:
 >Hello,
 >I have a new MSI K8N Neo with AMD64 3200+, tried it with several memory
 >modules
 >(in minimal configuration: MB + RAM + KB + video + 350W power, no case) but
 >the
 >system always shuts down after a few seconds. I know the 350W is a bit low, it
 >will run on 500W once it is replacing the MB in my current workstation but I
 >don't think this can cause the system to die so early and always at the same
 >point.
 >The last combination on the diagnostic LEDS I see is always 1 and 4 green
 >which
 >according to the troubleshooter on
 >http://www.msicomputer.com/support/sup_tshoot.asp#1_2 means "BIOS Sign On".
 >Does this mean my BIOS is corrupted?
 >Is there any way to do an emergency flash?
 >Thanks in advance.
 >


After clearing CMOS it now gives up at LED 4 only, "Initializing Video
Interface"
Tried an old PCI videocard with same effect<!-- ~MESSAGE_AFTER~ -->