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CPU BIOS Voltage on Asrock Extreme 3 Gen 3 - Page 2

post #11 of 16
Quote:
Originally Posted by KrayWay View Post

Have changed all of those settings before except the primary and secondary plane current limit. Bumped those up now. The voltage still seems low. BIOS reads 1.24-1.256 with the same offset as above and even with a LLC of 5 we're getting spikes to 1.41 under load. A lower offset and higher LLC gives us lower idle voltage and higher spikes. We've manually set his ram frequency and timings. They're what they're supposed to be. We've also tried spread spectrum both ways. PLL over voltage has been enabled. The system will indeed boot just not reliably. Sometimes it posts sometimes it won't. Once it's booted it's prime and BF3 stable for hours. So it just makes me think it has something to do with the idle voltage being low at boot. Why is it lower? If LLC is compensating for drop why isn't it compensating from the 1.25 range? We shouldn't be getting spikes of 1.41 at level 5 with a BIOS idle reading of 1.25. Right?

The CPU sets a VID depending on speed and load. That's why voltage changes between idle and work. Overclocking with offset, the offset gets added to the VID, and the result is VCore.

You have two different offset voltage settings you can tweak on your ASRock board. There's also that Turbo offset which you are ignoring according to your screenshots. You should play around with that one, but be careful. You'd best start from the beginning if you want to change to Turbo offset instead of the general offset voltage you are using currently. I think it slaps on a lot more voltage when you increase it, though I don't quite remember anymore.

At high load, the more power the CPU pulls, the larger the vdroop gets. LLC controls vdroop and can disable it. Overclocking with fixed voltage, what happens is simple to see. The voltage stays at what it's set to at idle and normal use, then goes down when using stress tests like prime95. LLC tweaks that. When using offset overclocking, it's confusing what exactly happens with spikes and drops because of VID, and power use under load, and LLC.

For LLC, best try a setting that makes it so LLC isn't fully enabled, instead use something that makes it run at 50% or 75%. That should be settings "level 3" to "level 1" on your board. This is so the voltage gets pulled down a little when you run stress tests like prime95. If voltage goes through the roof with full LLC, this makes testing stability with stress tests worthless when offset overclocking.

Just to make sure it's clear what the settings do, if you put LLC on level 5 in the BIOS, you are disabling LLC. On ASRock, the lowest LLC level in the BIOS means the LLC is running at max. The highest level in the BIOS means LLC is off. The behavior is reversed compared to ASUS for example.

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post #12 of 16
Thread Starter 
I'm hoping it's not the board. I wish we could swap it up and see but we're not exactly neighbors. So unfortunately that's not an option.

Deepor I appreciate the response and you taking the time to try and explain, and tho your info is right, I'm not sure you read what our specific problem is. Turbo voltage only seems to add to load voltage. Which we do not need. Our idle voltage is what seems off. We can set the voltage to say 1.35 fixed and that's giving us a BIOS and CPUZ idle voltage of 1.296-1.312. It's always about .05 lower than whatever we set it to. With LLC of level 5 (which i understand is the lowest setting) we're getting spikes upwards of 1.41-1.42 on load. The offset settings are more confusing to look at but it's the same issue either way. Increasing LLC only gives us higher spikes on load and doesn't effect our idle voltage which i think is giving us our no post problem. I understand how LLC is supposed to work but set fixed at 1.35... idle readings of 1.3... then LLC at lowest setting spiking to 1.42 doesn't make sense.

AFAIK there isn't a newer BIOS for the board we could try. He has version 2.30. Any tricks to revert to older versions?

The settings above are stable once booted. It just doesn't like to always post. Does it seem like the low start up voltage before speedstep kicks in is causing it?
post #13 of 16
Quote:
Originally Posted by KrayWay View Post

I'm hoping it's not the board. I wish we could swap it up and see but we're not exactly neighbors. So unfortunately that's not an option.

Deepor I appreciate the response and you taking the time to try and explain, and tho your info is right, I'm not sure you read what our specific problem is. Turbo voltage only seems to add to load voltage. Which we do not need. Our idle voltage is what seems off. We can set the voltage to say 1.35 fixed and that's giving us a BIOS and CPUZ idle voltage of 1.296-1.312. It's always about .05 lower than whatever we set it to. With LLC of level 5 (which i understand is the lowest setting) we're getting spikes upwards of 1.41-1.42 on load. The offset settings are more confusing to look at but it's the same issue either way. Increasing LLC only gives us higher spikes on load and doesn't effect our idle voltage which i think is giving us our no post problem. I understand how LLC is supposed to work but set fixed at 1.35... idle readings of 1.3... then LLC at lowest setting spiking to 1.42 doesn't make sense.

AFAIK there isn't a newer BIOS for the board we could try. He has version 2.30. Any tricks to revert to older versions?

The settings above are stable once booted. It just doesn't like to always post. Does it seem like the low start up voltage before speedstep kicks in is causing it?

If you want to revert bios, you will have to use a USB with the bios on it and hit h11 on boot if I remember correctly.
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post #14 of 16
Something is wrong, the lowest LLC will give a vdroop under load not a voltage increase. Maybe board or bios problem.
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post #15 of 16
Thread Starter 
Well I'm happy I didn't just overlook something... Sad something more serious is wrong. I'd like to try and give him a previous BIOS version prior to the Ivy updates. Have read of people having issues (not exactly this) with Sandy on the later versions. There are no new updates that I can see on Asrock website. 2.30 is the newest for this board. They don't have anything prior to the Ivy updates either. I think 2.10 is the oldest they have. I have 1.30 downloaded from my last update and that is what I'm currently running. I guess my biggest question is can he install it? I've read you can't go backwards without having Asrock send you a new BIOS chip. Is this correct? I've seen a few people saying they've done it but I'm not wanting to chance him being out of a PC for a week or more waiting on the mail. Anyone have any experience doing this? Is this the best plan of attack even?
post #16 of 16
Hey, how about pulling the BIOS chips out of both boards? You could then put your chip into his board and see what happens. If that works, you can then flash his BIOS chip onto the same version you are using on your chip.

If the flash program in the BIOS doesn't want to go back to an older version, there's a DOS program. Google for "FTK". That "FTK" program is what I've seen people mention for when the normal program does not want to flash a BIOS.
Edited by deepor - 10/1/13 at 2:58am
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