C1E, EIST, Turbo Mode

[degaeil]

I've got a Gigabyte EP45-UD3P (No overclocking), and I'm just wondering if anyone disables any or all of these functions. I've checked around at some other forums, and, out of curiosity, I thought I'd ask here.
The longest discussion I found was over at the Cakewalk forum. It seems that a lot of guys running SONAR and Digital Audio Workstations believe disabling all of these increases stability over 4 cores and reduces glitches during audio editing. One fellow even suggested hacking the registry to turn off Core Parking, which I doubt I'll do.
I've also read debates as to whether Turbo mode can function if EIST is disabled, in response to those who disable C1E and EIST, but leave Turbo Mode on.
My interest is specifically in terms of performance during gaming.
Although I haven't run in to a game that works your CPU the way editing does, has anyone disabled these and seen a difference in gaming performance?
I plan to run my own tests, but I thought I'd ask here as well.
Anyway, nothing pressing, just curious as there seems to be some very different views on this.
Thanks.

 

[footballrunner800]

your mobo doesn't have turbo mode. thats nehalem only (x58,p55,h55 ect)

 

[degaeil]

Whoops, I meant Performance Mode: Turbo, Standard

 

[VirtualLarry]

Whoops, I meant Performance Mode: Turbo, Standard

That has to do with obscure memory timing parameters, and doesn't dynamically vary. Set it to whatever is the most stable during memory/prime95 testing.

 

[degaeil]

Thanks V.L., will do that.
Any thoughts on C1E and EIST? I've got them both on right now, for energy savings, as I wasn't seeing any real performance difference.

 

[Dadofamunky]

Thanks V.L., will do that.
Any thoughts on C1E and EIST? I've got them both on right now, for energy savings, as I wasn't seeing any real performance difference.

Should be OK unless you decide to OC. IIRC, both of those need to be disabled in that scenario.

 

[degaeil]

Thanks, I remember seeing that on a few O.C. forums. A few people claimed that they should be disabled whether OCing or not, but I haven't noticed any real difference over the past couple of days. I guess I'll just leave it as is. Was just curious. Anyway, thanks again for the reply.

 

[zagood]

C1E and EIST aren't necessarily important, but they'll save a lot of heat and power from being wasted. When I overclock, if it isn't stable with EIST on, it's not worth it to me to hold that overclock for everyday use.

 

[theevilsharpie]

Thanks, I remember seeing that on a few O.C. forums. A few people claimed that they should be disabled whether OCing or not, but I haven't noticed any real difference over the past couple of days.

This is my experience running and older Opteron with Cool n Quiet, which is similar to EIST.

EIST/CnQ claim to adjust processor frequency based on load, but they do so by sampling the processor load x times per second, and from the perspective of an application, the CPU can be very slow to respond to increased load. This can cause a performance drop if you're running an interactive application (such as a game) that doesn't necessarily peg the CPU but requires immediate access to additional CPU time when necessary.

I get around this problem by creating a power profile in Windows that locks the CPU to 100% min/max. Creating a separate power profile also allows me to disable the screensaver/screen timeout/suspend as well, which is convenient when I'm using a game controller, and I can turn off crap that gets in the way of games like Windows Indexing and the Desktop Slideshow. When I'm done with my game, I simply switch it back to my desktop power profile.

 

[degaeil]

I get around this problem by creating a power profile in Windows that locks the CPU to 100% min/max. Creating a separate power profile also allows me to disable the screensaver/screen timeout/suspend as well, which is convenient when I'm using a game controller, and I can turn off crap that gets in the way of games like Windows Indexing and the Desktop Slideshow. When I'm done with my game, I simply switch it back to my desktop power profile.

That's a great idea. Best of both, then.
Thanks, and thanks for the all the info guys.