Gday Guys,
                    Im having a problem that started last night and am hoping you guys can help me sort it out
here's the msg.


  ***Hardware Malfunction

Call your hardware vendor for support


***The System has halted***

system spec's are,

Dell Dimension 9200 Core Duo  Desktop

intel core  2 duo processor e6400 (2.13ghz 2mb L2 cache 1066mhz fsb)
intergrated gigabit ethernet
1.44 3.5 floppy + 13 in 1 usb hi-speed media card reader
320 gig SATA 3.0gb/s hdd with native comman queing
16x dvd+/- rw with dual layer write capatability
9600 nvidia sonic graphics 512
soundblaster x-fi extreme music soundcard
2gig ram (2x1gig) NECC Dual Channel DDR2 800mhz
1yr limited with next day on site service warranty

System has been running stable for the last 12 months, with no problems (the warranty expired last month).

I have troubleshooted by replacing the graphics card, ram and removed the soundblaster
card and am still having the same problem. am going to get a new power supply tomorrow and see if that helps,

any ideas would be helpfull.
Thank you for all replys Cavedog