Vista sleep problem

[th_1977]

I have recently installed Windows Vista Ultimate on a new PC that I
built with Gigabyte GA-965P-DS4 motherboard, Intel Core 2 Duo E6600
processor and Radeon X1550 video card. I have set up a hardware RAID 1
(mirrored) array for my two WD SATA hard disks.

The installation was straightforward and Vista is stable, except that
occasionally (not always, though) when the system goes to sleep, it
will not wake up again. The only solution is a hard reset, after which
the RAID array needs to be verified, though Windows has booted without
problem.

I know there have some power management issues with Vista, so I would
be interested to know if people think this is something that will be
resolved by future patches or if there is likely to be another cause.
I have installed the latest drivers for all components, including the
ATI video drivers.

Should I flash the BIOS to the latest F8 version (I currently have
F6), as I have read that a BIOS upgrade could solve such problems? I
am a bit reluctant to do this because a) I think it may break the RAID
array (is this right? I don't want to reinstall Windows) and b) I have
an OEM version of Windows and I have read that it may require re-
activation/validation if the BIOS is upgraded.

I am also confused because the Award BIOS Agent tells me the
motherboard is ACPI 1.0, whereas I have seen elsewhere that Vista
requires ACPI 2.0.

Does anyone have any ideas/solutions?

Thanks

 

[johns]

"sleep", or "hibernate", or both? you may have
a timing conflict in that setup. I have Vista set
to hibernate, but I also see it just power down.
In the power down mode, I can wake it with the
mouse or keybd. In the hibernate mode, I have
to do a hard power on. It seems confused, and
doesn't work like XP did on this machine.

johns