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ROG Crosshair VI overclocking thread - Page 990

post #9891 of 17075
Quote:
Originally Posted by majestynl View Post

@gupsterg Thanks mate for testing this out !
@elmor

1.5v doesnt sounds like "default VID + offset still in place" but more like: "Default VID + Offset + (some)Offset" !
Correct me if im wrong..

I really think each cpu same model can have different voltages. First 1700x idle 1.43 and jumps up to 1.5xv when XMP was involved. Second rarely goes above 1.35v, highest I've seen was 1.373v. Same model, same board but different voltage. If I had an offset with my first cpu of .1 and it failed PState it could well be 1.5v to almost 1.6v. Those with high voltage cpu's maybe need to be very careful on voltage settings, probably just best to set a fixed voltage and leave it.
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post #9892 of 17075
Quote:
Originally Posted by skyworxx View Post

Finally got all my parts. I don't want to overclock just now, since the bios still seems a bit unstable and I don't want to accidentally give the CPU a high voltage.

I just want to double check if I got everything right for when I build the system:

- flash BIOS to 079/081/082
- clear CMOS
- load defaults
- set DRAM voltage manually to 1.35 (people are reporting 1.45v on default settings)
- set strap to 3200

Anything else I am missing?

You may want to start with 0902 on the BIOS since it is fully stable. While 0079-0083 are better in a number of regards, I have run into some instability with 0083(I use 2T memory, 2x16GB), and am going back to 0902 to verify that the problem is with the newer BIOS version and not something environmental(it is getting warm and temperatures were in the upper 70s(F) here, meaning the room the computer is in is a bit warmer than that.
post #9893 of 17075
Quote:
Originally Posted by nersty View Post

What are the chances that accidentally fat fingering 1.14 SOC as 1.4 SOC and trying to boot will have a lasting negative impact?
:eek.gif
For one I would hope the Bios would limit soc voltage to 1.25 and not allow 1.4v.
Unplug, Reset bios, Pull battery out and wait several minutes and put back in and see if it will post into the bios and cross your fingers.
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post #9894 of 17075
Quote:
Originally Posted by noko59 View Post

:eek.gif
For one I would hope the Bios would limit soc voltage to 1.25 and not allow 1.4v.
Unplug, Reset bios, Pull battery out and wait several minutes and put back in and see if it will post into the bios and cross your fingers.

I did that right after. It booted to windows fine, but it had sat in the bios at 1.4v for a minute or so before I noticed. I am just hoping there isn't long term damage.
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post #9895 of 17075
Quote:
Originally Posted by nersty View Post

I did that right after. It booted to windows fine, but it had sat in the bios at 1.4v for a minute or so before I noticed. I am just hoping there isn't long term damage.

Sound like the gods were with you today. If it runs normal then it is probably OK. I did something similar but with 1st 1700x cpu volts - it did cause some damage, cpu would no longer boot windows above 1.4v. Will probably use it in a render box at lower frequencies and voltage.
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post #9896 of 17075
@elmor

reading about voltages and regarding your reply that the AMD fallback doesn't play nicely atm, would it be possible to add a voltage limiter to the BIOS? I.e. setting a max voltage for each component that will never be crossed, regardless if VID or offset or any other value will try to force it?

i.e. placing a max voltage limit of 1.45v on CPU, 1.1v on SOC, etc.
post #9897 of 17075
Quote:
Originally Posted by SpecChum View Post

Mine did as elmor said. My VID voltage is 1.395v and my offset was 0.2525.

When using P-States it uses the "default" 1700 voltage of 1.175v + my offset, but when that failed it went back to VID + 0.2525, giving me 1.6475v, which is what I saw when I entered BIOS.

I understand 1.395 + 0.2525 = 1.6475V biggrin.gif

But if you read his comment, he is saying default VID, and your default VID is not 1.395, thats your OC VID!
So for now it really looks like its adding the offset on top of your OC VID (double offset when calculating from default VID).

I could be wrong, but what else is the reason the guys are measuring that kind of high voltages?!
Lets see what elmor will say about this.. Lets hope we have it wrong wink.gif

thanks
post #9898 of 17075
Quote:
Originally Posted by majestynl View Post

I understand 1.395 + 0.2525 = 1.6475V biggrin.gif

But if you read his comment, he is saying default VID, and your default VID is not 1.395, thats your OC VID!
So for now it really looks like its adding the offset on top of your OC VID (double offset when calculating from default VID).

I could be wrong, but what else is the reason the guys are measuring that kind of high voltages?!
Lets see what elmor will say about this.. Lets hope we have it wrong wink.gif

thanks

1.395v is the default volts of my 1700 at stock, it's not an OC VID, no - don't forget there's an internal negative offset too.

If I set everything to "auto" 1.395v is what it displays top right corner, next to 3000Mhz.

EDIT: that said, even tho it said 1.6475v on screen, I don't think that's what reaches the CPU. Hopefully the internal negative is still applying
Edited by SpecChum - 4/18/17 at 7:44am
post #9899 of 17075
Quote:
Originally Posted by SpecChum View Post

Quote:
Originally Posted by majestynl View Post

I understand 1.395 + 0.2525 = 1.6475V biggrin.gif

But if you read his comment, he is saying default VID, and your default VID is not 1.395, thats your OC VID!
So for now it really looks like its adding the offset on top of your OC VID (double offset when calculating from default VID).

I could be wrong, but what else is the reason the guys are measuring that kind of high voltages?!
Lets see what elmor will say about this.. Lets hope we have it wrong wink.gif

thanks

1.395v is the default volts of my 1700 at stock, it's not an OC VID, no - don't forget there's an internal negative offset too.

If I set everything to "auto" 1.395v is what it displays top right corner, next to 3000Mhz.

EDIT: that said, even tho it said 1.6475v on screen, I don't think that's what reaches the CPU. Hopefully the internal negative is still applying

Your default voltage will be listed in AMD CBS P-state section under P-State 0.
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post #9900 of 17075
Quote:
Originally Posted by SpecChum View Post

1.395v is the default volts of my 1700 at stock, it's not an OC VID, no - don't forget there's an internal negative offset too.

If I set everything to "auto" 1.395v is what it displays top right corner, next to 3000Mhz.

EDIT: that said, even tho it said 1.6475v on screen, I don't think that's what reaches the CPU. Hopefully the internal negative is still applying

1.395 is not an default VID ! Not for the 1700, and also not the for X versions!
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