As part of my ongoing fight to get that one POS Asus Nforce motherboard
going properly, Asus tech support is telling me that I have to make sure
that my power supply is ACPI 2.0 compliant. I know this is nothing but a
bullshit excuse, something they're telling me to get them off their
backs, but it has me curious. How exactly is an ACPI 2.0 PS different
from a run-of-the-mill one? Has it got some kind of feature that allows
it to be monitored by the mobo and control its fan speed and stuff?

Yousuf Khan

On Sat, 18 Aug 2007 14:27:14 -0400, Yousuf Khan <(E-Mail Removed)> wrote:

>As part of my ongoing fight to get that one POS Asus Nforce motherboard
>going properly, Asus tech support is telling me that I have to make sure
>that my power supply is ACPI 2.0 compliant. I know this is nothing but a
>bullshit excuse, something they're telling me to get them off their
>backs, but it has me curious. How exactly is an ACPI 2.0 PS different
>from a run-of-the-mill one? Has it got some kind of feature that allows
>it to be monitored by the mobo and control its fan speed and stuff?
>
> Yousuf Khan

About all ACPI 2.0 requires of the power supply is to support the S3 state
(Suspend to RAM). Are there any currently available ATX (or ETX or BTX or most
any X) compatible power supplies out there that don't?

/daytripper

daytripper wrote:
> About all ACPI 2.0 requires of the power supply is to support the S3 state
> (Suspend to RAM). Are there any currently available ATX (or ETX or BTX or most
> any X) compatible power supplies out there that don't?


Ah, okay, that makes sense now. The problem with this mobo is that it
doesn't allow you to go into either standby or hibernate states.
Anyways, previously this same PS had been working in the system running
a Duron with all working power states. I switched out this system's PS
with my own system's PS which also has all-working power states and it
made no difference.

How long ago did the ACPI 2.0 specs come out? I'm pretty sure all of
these PS's are compliant, in that case.

Yousuf Khan

On Sat, 18 Aug 2007 20:13:31 -0400, Yousuf Khan <(E-Mail Removed)> wrote:

>daytripper wrote:
>> About all ACPI 2.0 requires of the power supply is to support the S3 state
>> (Suspend to RAM). Are there any currently available ATX (or ETX or BTX or most
>> any X) compatible power supplies out there that don't?
>
>
>Ah, okay, that makes sense now. The problem with this mobo is that it
>doesn't allow you to go into either standby or hibernate states.
>Anyways, previously this same PS had been working in the system running
>a Duron with all working power states. I switched out this system's PS
>with my own system's PS which also has all-working power states and it
>made no difference.
>
>How long ago did the ACPI 2.0 specs come out? I'm pretty sure all of
>these PS's are compliant, in that case.
>
> Yousuf Khan

Hmm. I'd have to dig a bit to remember when new designs needed to be compliant
to avoid any bullsheet issues with Microsoft and/or green-pc logo-ing, but I'd
guess 2000 for desktops. Certainly five years ago, minimum...

/daytripper