vnf4 Ultra and sataII issues?

I have the VNF4 Ultra with an X2 4200 - I just added two more (for a
total of 4) sata drives. These are sataII 250 GB in a raid 0 config. Now
the computer is acting really weird. It will reboot if I try to run a
sandra bench mark on the raid array. It will reboot if I try to run
anything that uses the raid array as a temp drive. Now it seems it just
reboots at random places. I don't think it's power since I have Tagan
E-power 480 watt PS..unless I need more juice than that???

the psu should be more than adequate.

maybe you can find some inspiration here.

http://www.nforcershq.com/forum/sat-jul-09-2005-909-am-vp494278.html

ud