Hi,[quote=sosa2006;2217210]Try to update your chipset / sata / IDE controller drivers, by downloading them from your mainboard’s manufacturer website or from the chipsets manufacturers website.[/quote]for troubleshooting driver related issues, it is recommended to set the Sata controller to “IDE” in Bios and use MS default drivers instead of manufacturer drivers. Especially Nvidia drivers are reported to be buggy.
But since the drives did work before, I suspect hardware related issues. So I would check the DMA mode (depending on the driver that is used); current transfer mode should be UDMA-5. Additionally checking the event log for drive or controller related errors is recommended. Often it is enough to replace the Sata cable.