|Does the computer have a red 110/220 switch? If it does, and you didn't switch it to 220, then you've killed at least your power supply.|
If there's no switch, then the power supply should automatically sense line voltage and adjust itself.
Dual core Opteron 185 @ 3.2GHz on A8N32-SLI Deluxe
4GB of CL2 PC3200
2x 8800GTS in SLI
Blu-Ray and HD-DVD
X-Fi Titanium for PCI-E
Samsung 24" LCD