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How do I stop clock bounce on 2600k? - Page 2

post #11 of 16
Quote:
Originally Posted by gir1dhar;13049436 
I disabled it in the BIOS. Now I see minor bounces +/- 10Mhz. It doesnt fall to 3.4Ghz anymore.

How do you check if it is still on?

i check with cpuz or with realtemps 3,67, i disable it in bios but cpu z still showing its at 1600 mhz idle.
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post #12 of 16
Quote:
Originally Posted by gir1dhar View Post
I disabled it in the BIOS. Now I see minor bounces +/- 10Mhz. It doesnt fall to 3.4Ghz anymore.

How do you check if it is still on?
have cpuz open when you are stress testing it... after a minute or so... turn off the stress test and see if the clock stays the same

if it goes down... speed step is on
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post #13 of 16
Thread Starter 
Update. According to RealTemp3.67. EIST is on, but I can't see the clock dropping more than 10Mhz
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post #14 of 16
Thread Starter 
After more testing, the multiplier still drops to 34 under load.
After rebooting works OK for 15 minutes on 100%, then it starts to bounce between 47 and 34. It stays about 12 seconds @ 47, then drops for 5 seconds to 34, and back to 47
According to RealTemp EIST is on after boot, regardless of the bios setting.

What should I do?
Edited by gir1dhar - 4/8/11 at 1:20pm
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post #15 of 16
Make sure that the following are disabled in the BIOS:

1. That turbo feature that allows the multiplier to be increased by x1.
2. Speedstep.
3. C1E (or whatever you BIOS calls it).

Also make sure that the CPU is not throttling itself when the temps are too high.
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post #16 of 16
Thread Starter 
BIOS settings were ok.
The problem was airflow. Since I got crazy with watercooling I neglected proper cooling of the rest of the mobo.
Now I'm getting realy nice performance and temps.

Thanks for your help.
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