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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/90#post_26052265" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>wincomo</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/90#post_26052265"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
Looks like my dump, but different address. Are you tried to write F8
<div class="bbcode_code">
<div class="bbcode_code_head">Code:</div>
<pre>
<code>MSIAfterburner.exe /sg1 /wi6,25,E6,F8</code>
</pre></div>
then read back:
<div class="bbcode_code">
<div class="bbcode_code_head">Code:</div>
<pre>
<code>MSIAfterburner.exe /sg1 /ri6,25,E6</code>
</pre></div>
</div>
</div>
<br>
Yup one set ahead of ya <img alt="biggrin.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/biggrin.gif"> worked like a charm.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/90#post_26052180" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>jstefanop</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/90#post_26052180"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br><span style="text-decoration:line-through;">What version of AIDA64 are you guys using...looks like the trial version dosent have those tools.</span><br><br>
NVM just needed to enable the status bar <img alt="biggrin.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/biggrin.gif"><br><br>
Here is what I could get out of it for the 570<br><a class="spoiler-link H-spoiler-toggle" href="#"><strong>Warning: Spoiler!</strong> <span class="spoiler-help">(Click to show)</span></a><div class="spoiler-hidden">
<hr class="bbcode_rule">
[ ATI I2C Device GPU #2 / B06-D25 ]
<hr class="bbcode_rule"><br>
0000 FF 80 17 7F FF FF FF FF FF FF FF FF FF FF FF FF ...............<br>
0010 00 FF FF FF FF FF FF FF FF B0 FF FF FF FF FF FF ................<br>
0020 22 00 FF FF 00 18 A8 FF FF FF FF FF FF FF FF FF "...............<br>
0030 FF FF FF FF FF FF FF FF 01 00 FF FF FF FF FF FF ................<br>
0040 FF FF FF FF FF FF FF FF FF FF 64 FF FF FF FF 55 ..........d....U<br>
0050 FF 46 00 64 FF 10 FF FF FF FF FF FF FF FF FF FF .F.d............<br>
0060 FF FF FF FF FF FF FF FF 2C FF FF FF FF FF FF FF ........,.......<br>
0070 FF FF FF FF FF FF FF FF 00 00 00 00 00 00 FF FF ................<br>
0080 FF FF FF FF FF FF FF FF D6 FF FF 40 E0 00 FF FF [email protected]<br>
0090 FF FF FF FF FF FF 4D FF FF 1A 22 03 FF FF FF FF ......M...".....<br>
00A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................<br>
00B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................<br>
00C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................<br>
00D0 00 01 00 03 4C 02 00 FF FF FF 01 FF FF FF FF FF ....L...........<br>
00E0 FF 00 00 02 03 03 00 40 FF FF FF FF FF FF FF FF [email protected]<br>
00F0 FF FF FF 68 FF FF FF 0F BC 9C FF 03 FF 0F FF FF ...h............<br><hr class="bbcode_rule">
[ ATI I2C Device GPU #2 / B06-D25 ]
<hr class="bbcode_rule"><br>
0000 FFFF 2980 7817 FF7F FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
0010 6900 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 4AB0 FFFF FFFF FFFF FFFF FFFF FFFF<br>
0020 6622 0000 FFFF FFFF 0000 0018 00A8 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
0030 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0001 0000 FFFF FFFF FFFF FFFF FFFF FFFF<br>
0040 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0064 FFFF FFFF FFFF FFFF 0055<br>
0050 FFFF 0046 0000 0064 FFFF 0010 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
0060 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 012C FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
0070 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FD00 0000 2B00 4000 5600 3D00 FFFF FFFF<br>
0080 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF D2D4 FFFF FFFF 0140 A2E0 0000 FFFF FFFF<br>
0090 FFFF FFFF FFFF FFFF FFFF FFFF A34D FFFF FFFF 001A 1022 8703 FFFF FFFF FFFF FFFF<br>
00A0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
00B0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
00C0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
00D0 E400 8801 3200 5003 BA4C 2A02 9900 FFFF FFFF FFFF 6401 FFFF FFFF FFFF FFFF FFFF<br>
00E0 FFFF 6E00 D300 B602 A703 CC03 7800 0040 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF<br>
00F0 FFFF FFFF FFFF 0568 FFFF FFFF FFFF 9C0F F5BC F29C FFFF 4203 FFFF 1B0F FFFF FFFF<br><hr class="bbcode_rule">
[ Chips Found ]
<hr class="bbcode_rule"><br>
GPU1-B06-D08: IRF IR3567B<br>
GPU1-B06-D70: IRF IR3567B<br>
GPU2-B06-D25: ***** Unknown Device *****</div>
</div>
</div>
<br>
OK thanks. It could be interesting to see the diferences between the i2c values. So you address is 25 so for the VOI could be 4A.<br><br>
You can add more registers to the VOI. You can see them at pg 36 of the NCP81022 datasheet:<br><br>
<a href="https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/NCP81022.pdf" target="_blank">https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/NCP81022.pdf</a><br><br>
For example E4 is the load line or F7 the VRM frequency switching.<br><br>
You can test the register first with AB to see if them are working.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052494" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>mynm</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052494"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
OK thanks. It could be interesting to see the diferences between the i2c values. So you address is 25 so for the VOI could be 50.<br><br>
You can add more registers to the VOI. You can see them at pg 36 of the NCP81022 datasheet:<br><br>
<a href="https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/NCP81022.pdf" target="_blank">https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/NCP81022.pdf</a><br><br>
For example E4 is the load line or F7 the VRM frequency switching.<br><br>
You can test the register first with AB to see if them are working.</div>
</div>
<br>
Its actually 4A for address 25 <img alt="wink.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/wink.gif"><br><br>
I think I figured out how to set VDDCI offset as well for this controller (its controlled by the second single phase loop on this card)!
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052509" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>jstefanop</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052509"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
Its actually 4A for address 25 <img alt="wink.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/wink.gif"><br><br>
I think I figured out how to set VDDCI offset as well for this controller (its controlled by the second single phase loop on this card)!</div>
</div>
<br>
Yes, 4A Ok sorry. I don't know if VDDCI can or not be controlled.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052637" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>jstefanop</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26052637"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
It can <img alt="smile.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/smile.gif"></div>
</div>
<br>
How?. I know one way to do it on my 380 via VOI but it isn't working for me and I don't know if it could be used on polaris.<br>
I don't know if changing VDDCI is needed on polaris, as far as I know more tha 1.1v is bad on hawaii gpus.<br><br>
Edited: And other way to do it I think it's via powerplay, like I have explained here before. But it isn't working on my 380.<br><br>
Edited: Maybe is some thing related to register D2 to enable the second single phase loop?. I have tested before with AB some thing related to what is named "North Bridge", but I didn't see any change on the i2c dump.<br><br>
Edited: Other way I see is D5 to 0 (with it vddc isn't affected by the D7 offset) and D7 for the vddci offset, but D7 in invalid to read, and isn't working for me.<br><br>
Edited: Retested D2 to 4 and is making VDDCI as VDDC in gpuz, not in hwinfo, and E6 can be used to offset it but vddc isn't affected and can't be controlled.<br><br>
Edited: So the only way I see to change VDDCI with an offset is to change D2 to 4 with a shortcut with wi6,24,d2,04, set the offset with AB and then go back to VDDC with wi6,24,d2,00.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26053578" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>mynm</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26053578"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br><br><br>
Edited: Retested D2 to 4 and is making VDDCI as VDDC in gpuz, not in hwinfo, and E6 can be used to offset it but vddc isn't affected and can't be controlled.<br><br>
Edited: So the only way I see to change VDDCI with an offset is to change D2 to 4 with a shortcut with wi6,24,d2,04, set the offset with AB and then go back to VDDC with wi6,24,d2,00.</div>
</div>
<br>
Bingo <img alt="wink.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/wink.gif"> Sadly that second loop is not used on all cards, for example on one 570 they have VDDCI controlled by APW8722A voltage regulator. I guess they must use some sort of GPIO pins to control the resistance on the FB pin in order to change VDDCI. I don't understand why the don't at least take advantage of the unused phase to control either MVDDC or VDDCI.<br><br>
MVDDC is also regulated by APW8722A on this card as well, but its fixed voltage at 1.55v with resistors, so only hard mod can change it.
 

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@jstefanop Do you have idea about the second byte in the register E6, because according to pdf it's two byte register<br>
MSIAfterburner.exe /sg1 /ri6,25,E6 /fm2<br>
Edited: The box in the pdf is empty, but this command read two bytes of data from E6<br>
Edited: Looks like E6 is one byte register<br><br>
@jstefanop Can you confirm NCP81022 voltage offset in bios work ?
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055733" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>wincomo</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055733"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
@jstefanop Do you have idea about the second byte in the register E6, because according to pdf it's two byte register<br>
MSIAfterburner.exe /sg1 /ri6,25,E6 /fm2<br>
Edited: The box in the pdf is empty, but this command read two bytes of data from E6<br>
Edited: Looks like E6 is one byte register<br><br>
@jstefanop Can you confirm NCP81022 voltage offset in bios work ?</div>
</div>
<br>
Yes it works.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055695" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>jstefanop</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055695"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
Bingo <img alt="wink.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/wink.gif"> Sadly that second loop is not used on all cards, for example on one 570 they have VDDCI controlled by APW8722A voltage regulator. I guess they must use some sort of GPIO pins to control the resistance on the FB pin in order to change VDDCI. I don't understand why the don't at least take advantage of the unused phase to control either MVDDC or VDDCI.<br><br>
MVDDC is also regulated by APW8722A on this card as well, but its fixed voltage at 1.55v with resistors, so only hard mod can change it.</div>
</div>
<br>
OK I don't know why I didn't realize of that before <img alt="doh.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/doh.gif"> . So it's working in your 570 and apparently in some of the 570, so it could be working as well on 460/560, 470, 480/580 and 380/380x with the 81022.<br><br>
Do you know a way to include an VDDCI slide to AfterBurner via MSIAfterburner.oem2?<br><br>
Is changing the vddci in powerplay working?<br><div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055733" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>wincomo</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055733"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
@jstefanop Do you have idea about the second byte in the register E6, because according to pdf it's two byte register<br>
MSIAfterburner.exe /sg1 /ri6,25,E6 /fm2<br>
Edited: The box in the pdf is empty, but this command read two bytes of data from E6<br>
Edited: Looks like E6 is one byte register<br><br>
@jstefanop Can you confirm NCP81022 voltage offset in bios work ?</div>
</div>
<br>
I have no idea. 81022 seems to be using two byte data, but apparently isn't relevan in some of the registers.<br><div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055923" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>jstefanop</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/100#post_26055923"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
Yes it works.</div>
</div>
<br>
OK <img alt="thumb.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/thumb.gif"> . Thanks for share it.
 

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<div class="quote-container" data-huddler-embed="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/80#post_26046933" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>doktor83</strong> <a href="/t/1621800/would-appreciate-help-in-finding-editing-the-voltage-offset-in-the-rx480-bios/80#post_26046933"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
Well for start it would be nice if you upload the original bios, cause this one has a bad crc already.<br>
So i don't know what did you alter in it already.</div>
</div>
Sorry, that bios wasn't mine, I get it from my friend. (he took it from internet I guess)<br>
Here is the original bios:<br>
<span huddler_attributes="{"plugin":"attachment","params":{"id":"47664","name":"elpida.zip","description":"","size":110,"type":"zip"}}" huddler_plugin="attachment">
<a
class="attachment loginreq" href="/attachments/47664" title=""><span class="file zip">elpida.zip <span class="details">110k .zip file</span></span>
</a></span><br><br>
I see that space for improvement is bigger here..<br>
What I would like to achieve is.. timing such fast as possible at ~2030Mhz (more or less) with low voltages.. 930mv is maximum, I heard some people running this card @850mV..<br>
I would like to use this card under linux with power-stage-based adjusement, so I have an idea to hardcode voltages in PBE.<br>
F.e (effective) p7 - 930mV<br>
p6- 910mV., p5 - 900mV .. p1 - 850mV.<br>
So if using vddci offsets -100mV I should set it 100mV higher?<br>
Or cause I don't exactly understand what are you talking about above if it can be achieved another way I will be fine.
 

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<a data-huddler-embed="href" href="/u/62978/chris89">@chris89</a><br><br>
HI Chris89,can you make me a bios with this spec?<br><br>
VDDC max voltage 1.40-1.45v<br><br>
VDDCI max voltage 1150mv<br><br>
i try to run my Sapphire to extreme limit,after i will post my oc result,thank you very much!<br>
<span huddler_attributes="{"plugin":"attachment","params":{"id":"47750","name":"Rx480nitro8gb.zip","description":"","size":110,"type":"zip"}}" huddler_plugin="attachment">
<a
class="attachment loginreq" href="/attachments/47750" title=""><span class="file zip">Rx480nitro8gb.zip <span class="details">110k .zip file</span></span>
</a></span>
 

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<a data-huddler-embed="href" href="/u/513673/doktor83">@doktor83</a><br><br>
I saw that your SRBPolaris detects if there are offsets already present in the bios. So i tried adding a offset to my ref 470 and the result was this<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/3027893/"><img alt="" class="lightbox-enabled" data-id="3027893" data-type="61" src="http://www.overclock.net/content/type/61/id/3027893/width/350/height/700/flags/LL" style="; width: 350px; height: 424px"></a><br><br>
Does this mean i succeded in adding the offset? And can your editor also detect other offsets too, from cards that do not have the IR3567B voltage control chip ?<br><br>
Anyways thanks for the Editor!<br><br>
Also Thanks to <a data-huddler-embed="href" href="/u/442759/gupsterg" style="display:inline-block;">@gupsterg</a> for this awsome tutorial.
 

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When it shows the dropdown it means that it found the necessary hex values on the right place in the bios. Will it work, it depends if you corrected all the table lengths <img alt="smile.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/smile.gif"><br><br>
Only IR3567B works for now.
 

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Yeah i know that. Havent tested it. I also didn make sure it it is the IR3567B on my card. So i gotta do that. I report back once i tested XD<br><br>
Edit: I just tested it and it works flawless <img alt="biggrin.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/biggrin.gif"> . Very nice tool indeed
 

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Thanks <img alt="smile.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/smile.gif"><br>
Unfortunately it only works good when the card has a vddc offset. When no offset, it tries to do some magic in the PP table but that rarely works <img alt="frown.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/frown.gif">
 

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Hi,<br><br>
can anybody help me with undervolting a Sapphire RX570 Pulse 4gb (Elpida)?<br>
I would like 900mv<br>
Tried a few things but nothing is working.<br><br>
Thanks<br><br>
<span huddler_attributes="{"plugin":"attachment","params":{"id":"47789","name":"pulsemod7.zip","description":"","size":108,"type":"zip"}}" huddler_plugin="attachment">
<a
class="attachment loginreq" href="/attachments/47789" title=""><span class="file zip">pulsemod7.zip <span class="details">108k .zip file</span></span>
</a></span>
 

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Hi, I have tried msi ab, sapphire trixx, wattool, and srb editor but whenever I try to drop the voltage I get a blue screen.
 

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OK, now before trying to make changes in the bios itself with SRBPolaris, first clean stuff with DDU, and remove AB, trixx and so on.<br>
I heard that people can only control fan on these new cards with AB <img alt="biggrin.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/biggrin.gif">
 
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