Would appreciate help in finding / editing the voltage offset in the RX480 Bios - Page 2 - Overclock.net - An Overclocking Community

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Would appreciate help in finding / editing the voltage offset in the RX480 Bios

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post #11 of 218 (permalink) Old 02-07-2017, 12:16 PM - Thread Starter
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Wow, thank you so much! Really appreciate it! Going to be a little less scary to modify some values.. haha

Curious, if I were to change some settings, will this break the UEFI/GOP module? I would think it would, right?

Cheers
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post #12 of 218 (permalink) Old 02-07-2017, 10:51 PM
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post #13 of 218 (permalink) Old 02-08-2017, 04:18 AM
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Quote:
Originally Posted by gupsterg View Post

This is your stock Nitro ROM with VMAX of 1.36875V for GPU smile.gif . It also has a custom UEFI/GOP module which Lordkag of Fernando's Win-RAID forum made me smile.gif . This custom ROM will work with CSM off on mobo UEFI, so you have pure UEFI mode running if required wink.gif , fast boot can also be on but secure boot can not be on.
Hi, any chance to make a negative offset for my RX480 Sapphire? I see no such place with registers/data as for jeb101`s bios

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post #14 of 218 (permalink) Old 02-08-2017, 09:47 AM - Thread Starter
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What offset are you looking for?
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post #15 of 218 (permalink) Old 02-08-2017, 10:57 AM
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Originally Posted by jeb101 View Post

What offset are you looking for?
which doesn`t really exist in my bios version (I assume...) may be it`s because of my sapphire RX480 nitro is in first bios position - silent state rolleyes.gif
I`ll take a look at your one - I need negative offset, for ex. "-10" (eng. calc-vers. gives me a F6 raw data value)
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post #16 of 218 (permalink) Old 02-08-2017, 05:41 PM
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I would also like to find out how to get negative offset values...
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post #17 of 218 (permalink) Old 02-09-2017, 05:28 AM - Thread Starter
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Now, I am not 100% if this is correct, but I believe, with 2'sC, -8, would be F8, which would mean -50mv, and FC for -25mv. If you try these out, I'd make sure to use the bios he posted, as it has a hard limit for voltage, don't want to risk a spike in voltage that would kill the card, but 1.36v should be fine, maybe not under load on air, but should be fine to boot.

Again, I am not sure if I am right, I am just getting to understand how this works, so please use at your own risk.
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post #18 of 218 (permalink) Old 02-19-2017, 12:15 PM
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@gupsterg

Hey, I managed to edit my voltage offset via hex edit. I was wondering, could you point me towards adding LLC and max voltage options to my rom? As far as I understood this would be the same process of Hawaii Bios and you wrote a lot of material about it, but I am not able to sort everything out as I'm probably missing the basics. Could you show me the way? Thank you.
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post #19 of 218 (permalink) Old 02-21-2017, 10:06 AM
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I will do a screen video guide as soon as I can, as it needs to be added to Hawaii/Fiji bios mod threads. It has been on my "to do" list for a while and I keep doing other things redface.gif .
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post #20 of 218 (permalink) Old 02-21-2017, 01:43 PM
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Note: This guide is for where IR3567B is used on PCB as Voltage Control Chip.

Link to video.

Attached is guide.txt seen in linked video.

guide.txt 3k .txt file

GoogleDoc link to IR3567B registers I'm aware of.

Note: Use above GoogleDoc information with caution as potential for killing card.
Attached Files
File Type: txt guide.txt (2.6 KB, 773 views)
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