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Old December 13th 09, 08:22 AM posted to alt.sys.pc-clone.gateway2000
William R. Walsh
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Posts: 927
Default Gateway gm5632e hanging in AHCI controller startup

Hi!

I am not running RAID on the 2 500 GB, 7200 RPM, SATA II hard
drives.
I am running them in AHCI.


The two are more closely related than you might think, especially on a
system where the "RAID" functionality is a trick of the Intel Matrix storage
BIOS. In AHCI mode the SATA controller behaves as an enhanced storage
controller and typically will require a special driver for the operating
system to see it. This allows you to make use of enhanced serial ATA
features and command sets--and it also allows the drivers to "create"
features in software that you didn't have before, such as RAID.

Since you mentioned changing the hard drive or even attempting to start
without one producing no improvement, I would recommend trying to change the
operating mode of the SATA controller back to a setting that would enable
the emulation of a PATA controller. If you can get back into system setup to
make this change, it might help to tell you exactly what is broken. If the
system were to work normally, I'd suspect that looking for a newer BIOS
revision could help.

You would lose the ability to use SATA specific enhancements by doing this,
but data transfer speeds should not be affected as the link speed from
controller to drive remains high.

Try pulling the CMOS battery and leaving the system unplugged overnight. (If
you just pull the battery, it may not make a difference because many
motherboards will use standby power to keep their CMOS RAM intact.)

It seems like this system is very new. Are you sure it's not still under any
Gateway warranty?

William