PlanetZ forums - scopeusers.com

What does ACPI do and what is the advantage of having it on? I used to run ACPI on my ASUS without problem...

basically with acpi, all interrupts are handled by the os. in standard pc, interrupts are handled by the motherboard's bios. acpi allows more interrupts. standard pc may be more stable. acpi uses apm power management. standard pc doesn't use apm(although it CAN be enabled) meaning that you get that old "it's now safe to turn off your pc" message. without apm you must power down by pushing the power button when prompted("it's now safe....").

personally, my computer is in standard mode, but i usually do other people's machines in acpi(less fiddly for them).

Thanks for the information. I have run Pulsar successfully with ACPI in the past, plus I like the idea of more interrupts and not having to worry as to whether my computer is acutally switched off, so I figure that when I install my new mobo and make a new XP installation I may go with ACPI unless you have any advice not to...

Creamware has a quick start guide that recommand to install in standard mode as the cards may not function properly in some setups.

but you can alway redo the system it does not work.

With the Intel board, ACPI installation should be fine. I set the PCI latency in BIOS to 64.

/dave

I found ACPI not good for running PCI Bus-heavy plugins like reverb on Scope.
Also, I like to have the flexibilty of running a few apps at once - Cubase, Scope, Wavelab & Acid for instance, and in this situation Standard PC seemed better - no audio clicks etc.

If you have problems with ACPI it really helps to list OS/ServicePack (or version)/System configuration.

Almost all Intel-chipset based motherboards (and apparently the Nforce3 based motherboards) seem ok with ACPI provided you're running WinXP. WinXP sp2 seems to improve ACPI performance and perhaps even the number of available IRQs.

Win2000 is almost universally BAD with ACPI. I've got systems where even under sp5 (or 4?) of win2000 ACPI was just horrible so Standard PC was necessary. WinXP on those same systems worked flawlessly with ACPI (I'm using a really really old P3 motherboard with bx chipset and it shouldn't support ACPI well but WinXP sp2 works flawlessly with ACPI and 10 Creamware dsps).

Thank you Valis, that is good info. Since i am going to have a Intel mobo and I am going to be running XP SP2 I think that I will go with the ACPI, especially since it has never caused problems before.
I am pretty sad at the moment, as my music wont work. Even my secondary soundcard isn't working properly with the board so I can't even do some in-the-meantime work.

I'm sorry to hear that. The majority of the complaints about VIA/Sis were from 2-3 years ago so those threads are long buried for the most part and the knowledge is here among most users but rarely spoken aloud anymore. Most likely people just take it for granted that everyone would know that now...hopefully this thread will save a few others from making the same mistake!

How about the HT?

I've just upgraded to Cubase SX3 and it is HT compatible. Should I enable HT or leave it disabled?

I have Luna II and Sfp 3.1c, WinXp, 865PERL

kaju

<font size=-1>[ This Message was edited by: kaju on 2004-12-14 10:01 ]</font>

If you start getting BSOD's disable HT in your BIOS...

I have HT disabled. Have had it that way all the time, as it was the recommended way when I optimized and started using my new pc, a year or so ago.
Question is, however, is there anything real against it's use now, especially when Cubase SX3 supports it?

kaju

go ahead and try it. i sincerely doubt there'll be a significant performance gain.

<font size=-1>[ This Message was edited by: garyb on 2004-12-14 17:14 ]</font>

Thanks Gary,

I'll leave it as it is.

kaju