Software, Hardware, Technology
24 Jan
Since the introduction of ICHR8 Intel made some core improvements to the new AHCI interface for SATA devices.
If you don’t know what AHCI is, it provides better power managements features, hot-plug functionality and other enhancements to SATA devides such as hard drives and optical drives. Even some sites claim that AHCI provides more performance over standard controllers.
Intel has more information about AHCI.
If your BIOS supports it, you can turn on AHCI mode, but if you are currently running windows you can get into trouble and your current installation won’t boot.
So, if you want to turn on AHCI mode, you first need to enable the AHCI driver in Windows Vista before changing it in the BIOS. Read how to enable it here.
Basically, you just need to change a registry key in order to avoid a BSOD with the message STOP 0×0000007B INACCESSABLE_BOOT_DEVICE when enabling AHCI.
I will enable it as soon as i get another HDD to use a RAID 0 for Vista.
2 Responses for "Using AHCI mode in Windows Vista"
Que bueno, saber eso del registro, para aquellos que van a intentarlo, lo recomiendo muchisimo el usar AHCI para discos sata, la diferencia de rendimiento es mucha
Yo hice pruebas con varios discos y no encontré mucha diferencia en el rendimiento.
Sin embargo, es importante saber que el modo AHCI en los diferentes controladares de disco en las tarjetas madre soportan la caracterísitca Hot Plug o Hot Swap, así que se pueden conectar o desconectar los discos duros SATA (o eSATA) en caliente, sin reiniciar el equipo, como si fueran dispositivos USB.
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