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Hawaii Bios Editing ( 290 / 290X / 295X2 / 390 / 390X ) - Page 142

post #1411 of 3620
Code:
"Yes, you can disable LLC by sending commands to IR3567B. LLC can be disabled by resetting bit 7 of register 38. To avoid calculations, you may use AND I2C command (/ai) instead of WRITE I2C (/wi) to reset some bit of some register. OR I2C (/oi) command can be used to set it back if needed.

The following commands disable bit 7 of register 38:

/ai4,30,38,7f

It can be set back with:

/oi4,30,38,80

so now we know which i2c address controls LLC who is active enough to find it in voltageinfo? biggrin.gif
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post #1412 of 3620
Thread Starter 
You still don't get it smile.gif .
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post #1413 of 3620
??
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post #1414 of 3620
Thread Starter 
You find it if it's being programmed by VoltageObjectInfo.

So if VoltageObjectInfo doesn't have it you won't find it.

So I think you will know how to make it happen now?
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post #1415 of 3620
Thread Starter 
From same thread you got the info you quoted:-
Quote:
To set +100mV offset:
MSIAfterburner.exe /wi4,30,8d,10

To restore original voltage:
MSIAfterburner.exe /wi4,30,8d,0

Find 8D in this :-
Code:
74 00 03 01 01 03 12 00 08 96 60 00 00 00 00 00
6D 00 DF 00 FF 00 01 07 0C 00 0A 00 00 00 00 00
00 00 04 07 0C 00 0E 00 00 00 00 00 00 00 02 00
24 00 00 04 00 00 00 80 10 00 00 00 00 00 1E 05
00 00 10 00 46 05 00 80 00 00 DC 05 00 80 10 00
0E 06 06 03 22 00 0C 96 A6 00 00 00 00 00 D4 00
A2 00 D5 00 A2 00 D6 00 A2 00 D7 00 A2 00 D3 00
40 00 FF 00

Here is ROM that is from, inc tables list.

UEFI.zip 101k .zip file
Edited by gupsterg - 1/28/16 at 10:11am
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post #1416 of 3620
because you dont understand that its not 8D you are looking for biggrin.gif
and its pretty easy to see which offset it writes just take i2c dump before and after wink.gif
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post #1417 of 3620
Thread Starter 
You still don't get it smile.gif .

When Voltageobjectinfo don't have 8D in it IR3567B memory feature from factory is in use aka MTP.

This is Vapor-X 290X STD VoltageObjectInfo :-
Code:
74 00 03 01 01 03 12 00 08 96 60 00 00 00 00 00
6D 00 DF 00 FF 00 01 07 0C 00 0A 00 00 00 00 00
00 00 04 07 0C 00 0E 00 00 00 00 00 00 00 02 00
24 00 00 04 00 00 00 80 10 00 00 00 00 00 1E 05
00 00 10 00 46 05 00 80 00 00 DC 05 00 80 10 00
0E 06 06 03 22 00 0C 96 A6 00 00 00 00 00 D4 00
A2 00 D5 00 A2 00 D6 00 A2 00 D7 00 A2 00 D3 00
40 00 FF 00

This is why this occurred on Sapphire forum:-
Quote:
Originally Posted by gupsterg View Post

I did a ROM for a member on Sapphire forum via PM as you can't give a bios via public side of forum. He had a Vapor-X 290X STD like mine, his issue was black screen at stock clocks. I asked him for i2cdump (did not have as much info as now to know what to look for in it) and his stock ROM.

His stock ROM the same as mine ie no VDDC only offset in VoltageObjectInfo but he had +25mV as offset in i2cdump (0x8D 04h). As you know my same ROM gives me +31.25mV (0x8D 05h). SO this means due to lack of programming in VoltageObjectInfo it's taking it from IR3567B memory feature(MTP) IMO.

I gave him 1st Vapor-X 290X OC ROM, why because it has 8D in VoltageObjectInfo :-
Code:
78 00 03 01 01 03 16 00 08 96 60 00 00 00 00 00
6D 00 DF 00 8D 00 04 00 FF 00 01 07 0C 00 0A 00
00 00 00 00 00 00 04 07 0C 00 0E 00 00 00 00 00
00 00 02 00 24 00 00 04 00 00 00 80 10 00 00 00
00 00 1E 05 00 00 10 00 46 05 00 80 00 00 DC 05
00 80 10 00 0E 06 06 03 22 00 0C 96 A6 00 00 00
00 00 D4 00 A2 00 D5 00 A2 00 D6 00 A2 00 D7 00
A2 00 D3 00 40 00 FF 00

And I made data for register 8D 05h in ROM instead of 4h as show above, now what is that similar process to?
Quote:
To set +100mV offset:
MSIAfterburner.exe /wi4,30,8d,10

To restore original voltage:
MSIAfterburner.exe /wi4,30,8d,0

Now do you understand how to make LLC in firmware instead of using:-
Code:
The following commands disable bit 7 of register 38:

/ai4,30,38,7f

It can be set back with:

/oi4,30,38,80
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post #1418 of 3620
?? biggrin.gif
yes i know that there is nothing like 8D in bios BUT you setting value 0x10 (thats 16*6.25 so 100mv) to offset 0x8D
and because you know what there was before you did this you can search that value in BIOS table

so

1. take i2c dump
2. find value on offset 0x38
3. search for that value in voltageinfo
4. if you lucky you fill find same value and thats your LLC setting

problem is that as LLC is single bit in byte so there maybe isnt such value to search for
Edited by OneB1t - 1/28/16 at 1:41pm
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post #1419 of 3620
Thread Starter 
Do you not see 8D in Vapor-X 290 OC VoltageObjectinfo I just posted? do you not see 04 that can be made into 10 or 05 or whatever you like?
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post #1420 of 3620
0x8D is offset into i2c registers i dont know what you are talking about.. biggrin.gif
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