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Hawaii Bios Editing ( 290 / 290X / 295X2 / 390 / 390X ) - Page 282

post #2811 of 4008
Thread Starter 
@3DFox

For register 8D you'd need FF to set -6.25mV VDDC.

For register 26 it would be F0, the F is setting -6.25mv VDDC and 0 will keep VDDCI offset as 0mV. This registers is dual purpose, first 4 bits relate to VDDC and last 4 bits as VDDCI (aux voltage).

When using windows calculator in programmer mode set it as "Byte" to convert values of dec to hex for this mod.

If your ROM VoltageObjectInfo is setting registers 26 and/or 8D you will find them on VRM page of HawaiiReader (latest release). Otherwise you need to mod ROM as per Kizwan's linked post.

It would be best if you provide an i2cdump for your card at stock settings / rom, for example my Vapor-X 290X @ stock settings/rom used to have register 26 as FF (-6.25mV VDDC & VDDCI) and register 8D as 05 (+31.25mV VDDC) resulting in +25mV VDDC & -6.25mV VDDCI.
Edited by gupsterg - 6/6/16 at 2:00am
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post #2812 of 4008
@gupsterg
I'll try to mod section VoltageObjectInfo.
Thanks a lot.
Your reply is very useful !
Edited by 3DFox - 6/6/16 at 2:40am
post #2813 of 4008
Thread Starter 
No worries smile.gif , post if you get stuck wink.gif .
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post #2814 of 4008
sooo some memory error infos to share.
After is played a bit more with my bios i get a nice fps boost.

But now the "problem". While streaming the gpu goes from time to time in 3D mode. Normaly. But in 1 Hour i get around 15 Errors or so. Not much but hmm^^

Do you have the same situation?
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post #2815 of 4008
I sucked that modify address after inserted 20bits.
Till use Table_Calculator.bat

I alway get black screen when 3d heavry full load game previously , about 1 year.

I'm fighting this, mod some coolers, test a lots of bios ,and so on.

Just testing for a hour, 50% power limit , -12mv core voltage, and some small changes

The key is some mem timing @1250mhz.

For now I think I might fixed the 290x black screen unless memory must lower to 1100mhz .

Few hours passed , I have never see any black screen.

Not sure, because my 290x is unlock 290.

Based Ati 290x bios from toppowerup, 015.039.000.007.000000 leftside rom.


Nothing help, damn 290 black screen come up again!
Edited by 3DFox - 6/7/16 at 5:48am
post #2816 of 4008
There is a strang suck thing.
Same bios base Ati 290x bios from toppowerup, 015.039.000.007.000000 leftside rom.
A just modify the memery timing. Afterburner set -12mv core vol, +50% porwer limit~ No black screen!
B modify the memery timing, -12mv core vol offset, Afterburner set +50% porwer limit still black screen about 10-20 mins
Both bios is TDP Max 325W,Power limit 325W, TDC limit 250A,
VDDCR Limit value both 125.
B bios set loop1 vddc 96(default) loop2 vddci 96 (default) , 0x26 hidden vddc/vddci set E0 (core -12mv aux 0mv)

relate the loop1 vddc and loop2 vddci?
The temp of core is about 65C , VRM1 is 53C VRM2 is 59C.
If set loop1 vddc loop2 vddic 160.
The temp of core is about 65C , VRM1 is 51C VRM2 is 57C.
But both black screen.


Nothing help, damn 290 black screen come up again!
Edited by 3DFox - 6/7/16 at 5:48am
post #2817 of 4008
@3DFox
Instant or almost instant black screen with furmark?
post #2818 of 4008
Quote:
Originally Posted by okrasit View Post

@3DFox
Instant or almost instant black screen with furmark?
It never BS when furmark.
Black screen just play heavry 3d game.... for exemple, Crysis3 , Sniper Elite 3 in 2-20 Minutes
If mem clock @ 1100MHz everything is OK.

So I have tried tweak mem timing @ 1250MHz but sometimeS OK, sometimes BAD. Plus +-6mv core voltage +50%powerlimit by afterburner.

Nothing Help..I'm fall in hopelessness.
post #2819 of 4008
Quote:
Originally Posted by 3DFox View Post

It never BS when furmark.
Black screen just play heavry 3d game.... for exemple, Crysis3 , Sniper Elite 3 in 2-20 Minutes
If mem clock @ 1100MHz everything is OK.

So I have tried tweak mem timing @ 1250MHz but sometimeS OK, sometimes BAD. Plus +-6mv core voltage +50%powerlimit by afterburner.

Nothing Help..I'm fall in hopelessness.

Are you using hdmi?
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post #2820 of 4008
Quote:
Originally Posted by sugarhell View Post

Are you using hdmi?
No. DVI dell 2412M
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