The Rextech videocard installed at the factory is notoriously unreliable. This is due to a design flaw in the heatsink on that specific card, not any issue with the FX 5200 chip itself. It is strongly recommended to replace the card with a retail low-profile FX 5200 videocard, preferably with a passive heatsink. The new card usually won't fit correctly in the case, requiring the hard drive/dongle to be mounted somewhere outside the main computer.