intel quad q9550 cpu audio crackles SOLVED!!!! disabled EIST

[ARCADIOS]

hi,
I recently changed(upgraded) my core duo 6500 dual core cpu to the quad 9550.
the socket is 775

the quad 9550 is a bettter cpu and has 4 cores.
I experience some audio random pops and crackles whit Ableton Live.
I wonder if it is much of a mess that cpu uses 4 cores

[nomagic]

I have an older i7 (3930K) with 6 cores. I had random pops with cubase.
After i deactivated hyperthreading and some performance/energy-settings in bios everything is fine now.

[garyb]

4 cores is not an issue.

follow the setup suggestion in the tips and tricks section. be sure you don't have an old bios.

[ARCADIOS]

I disabled cpu EIST in bios and pops and crackles disappeared completely!!!
I should have done this with the older 2 core cpu, but random clicks were less than on the 4 core cpu...

I see that in the tips section of planetz, garyb advices us to disable a whole list of cpu functions...
but I disabled only EIST which gave me the result...
am I missing something that I have all other like C1 enabled???

[garyb]

EIST is the worst offender.

what this is about is that the CPU gets run at very low voltage at idle to save power. when a program asks for more processing, it is supposed to ramp up the CPU's power. it's great, except it's too slow for a realtime device like Scope.

[ARCADIOS]

Using cpu monitor I observed that disabing EIST the frequency of the cpu remains at its top..because the multiplier is at the high number...in my case 8.5.... But I see that voltage of cpu is changing..... I dont actually care since cracks disappeared....and cpu raised temperature for very litle...about 3 degrees celcieus(according to cpu monitoring)... Just saying

[garyb]

if you're saying it's not needed, you are correct.

[ARCADIOS]

Eist.....not needed.... Must be disabled