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ROG Crosshair VI overclocking thread - Page 818

post #8171 of 17495
Quote:
Originally Posted by Timur Born View Post

Usually I do that, but with all the testing it sometimes gets forgetting. That being said, even when disabled there is more variability than I would like to see, something around 2% with spread spectrum disabled. This doesn't sound like much, but then you put a multiplier on it for CPU and memory frequencies.

Hello

See my previous reply to you below. Even though disabling VRM Spread Spectrum will have no impact on bus frequency it should be set to disabled if not using stock settings. Set to enabled may have an adverse impact on the VRM transient response.


Quote:
Originally Posted by Praz View Post

Hello

The VRM Spread Spectrum setting modulates the VRM switching frequency around the set point. This has no bearing on the bus speed.
post #8172 of 17495
Hey everyone, just wondering if anyone can shed some light on my predicament. I currently just finished my build and have all settings set to optimzed defaults but there are times when the cpu core voltage can spike up to 1.515 from 1.212 and hover around 1.4 volts during light to heavy loads. So its often spiking to these voltages. I had once set the voltage manaually to 1.35 volts with everything else at auto including LLC, but eventually crashed after 12 hours of normal use (idle, no load, ironic) . i was just wondering if thess voltages are normal on auto to accomodate for the vdrooop?

Bios:0082
Ram: gskill trident z
Cpu :1800x

Thanks.
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post #8173 of 17495
Quote:
Originally Posted by Praz View Post

Hello

See my previous reply to you below. Even though disabling VRM Spread Spectrum will have no impact on bus frequency it should be set to disabled if not using stock settings. Set to enabled may have an adverse impact on the VRM transient response.
Yep, I'm will still be experimenting with it, though, because the VRM section buzzes a lot and Elmor suggested to use Spread Spectrum as a counter-measure.

Frankly, it shouldn't be buzzing so audibly to begin with.
post #8174 of 17495
Quote:
Originally Posted by noko59 View Post

I am on Bios 81, installed c7h_p0vidfix, went into bios and set P0 to VID 98(3.8ghz), FID 8 and VID to 1C (1.37v), BCLK was at 100. Anyways booting into bios it took, cpu was around 3.8ghz and voltage was at 1.37v range. Went into windows and it stayed on p1 at around 3ghz.

How does one remove the tweak? Anything did I miss?

Went back into the bios and set VID to 20 (1700x here) and PState OC is working as before.

Thanks

Same problem as before. Changing the VID from the default value will break the Pstates!
This will be fixed soon!
post #8175 of 17495
Quote:
Originally Posted by Reikoji View Post

0082 or 0083

If you dont have any issues with your RAM i would stick on 0081. this will be the next release version!
post #8176 of 17495
Quote:
Originally Posted by Timur Born View Post

Usually I do that, but with all the testing it sometimes gets forgetting. That being said, even when disabled there is more variability than I would like to see, something around 2% with spread spectrum disabled. This doesn't sound like much, but then you put a multiplier on it for CPU and memory frequencies.

Dunno chap, mine has been rock solid.








I've got lot of run data (above is 0079, previous posted f@H was also), polling interval is 1000ms.
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post #8177 of 17495
Quote:
Originally Posted by AndehX View Post

So an update to my original post stating that cold boots were successful now - Cold booted this morning, and got a couple of different error codes. After a few restarts, I managed to get it to boot. Still better than previous bios versions, but still not perfect.

As you can see on me tests. Cold boot issue is not complete gone. Its definitely much better, but still there!
On 0083 i have more issues !
post #8178 of 17495
Quote:
Originally Posted by Timur Born View Post

I wish BLCK was more stable. I just saw a spike of +2.9 MHz compared to what I set, which can make a quite a difference of 4.002 vs. 4.089 GHz CPU frequency. And knowing that there is a hard wall between 4.0 and 4.05 GHz this can make or break my overclock.

Seems that we have same CPU characteristics ! I have the same wall! And also some weird happenings with temps vs emergency shutdowns...
Im starting to think it has something to do with temp spikes or somethings. These spikes are also in IDLE,
but probably not reaching a certain level to push the emergency shutdown..

I never saw these spikes on other Intel / AMD Cpu's! Need to investigate this....
post #8179 of 17495
Quote:
Originally Posted by Timur Born View Post

I wish BLCK was more stable. I just saw a spike of +2.9 MHz compared to what I set, which can make a quite a difference of 4.002 vs. 4.089 GHz CPU frequency. And knowing that there is a hard wall between 4.0 and 4.05 GHz this can make or break my overclock.

To get from 4.00 to 4.05 I need to add +0.050V offset, massive wall over 4GHz
post #8180 of 17495
Quote:
Originally Posted by Praz View Post

Hello

See my previous reply to you below. Even though disabling VRM Spread Spectrum will have no impact on bus frequency it should be set to disabled if not using stock settings. Set to enabled may have an adverse impact on the VRM transient response.
Quote:
Originally Posted by Praz View Post

Hello

The VRM Spread Spectrum setting modulates the VRM switching frequency around the set point. This has no bearing on the bus speed.

Say on my M7R would CPU spread spectrum have had bearing on bus frequency?

I had asked previously will such a setting be on C6H in the future?
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