Overclock.net › Forums › Graphics Cards › AMD/ATI › Polaris Bios Editing ( RX5xx / RX4xx )
New Posts  All Forums:Forum Nav:

Polaris Bios Editing ( RX5xx / RX4xx ) - Page 52

post #511 of 3408
I accidently flashed the unlocked air bios onto my integrated video on a i7 4790k. Can anyone point me to a BIOS file and flash utility to recover my integrated video? I don't actually use it but I like the safety net of knowing it's there. Thanks. If I run into trouble I can always use one of my other video cards, but if anyone could help. Command line typo. Forgot which was 0 and which was 1. thanks.


edit: never mind. My only mistake was thinking I'd made one. It's working fine. Just for some reason after loading the unlocked air bios dduing my driver and reloading it. embd 1.2 thinks I have 2 rx480s. I'll check crossfire settings I guess.
Edited by greytoad - 8/30/16 at 8:29pm
post #512 of 3408
I noticed weird issue with linux and bios modding. If I change memory speed from 2000 to lower value I am starting to have issues booting the pc into linux.

I have restored the original bios and I only adjusted memory idle voltage. I am not sure about idle gpu voltage did I change that too. Because I made so many tries late night.

Everything seems to be working fine, but I don't seem to get higher speeds than 300mhz for gpu and memory. it doesnt seem to turn on power mode.

Based on what the gpu sets higher speeds? Also opening "second screen", dosent seem to trigger higher memory speed either.
post #513 of 3408
Does anyone know, what is the address of the field "voltage offset" in BIOS?
RX480 has 0 offset by default, but my non-reference sapphire nitro rx470 has +25mv offset, it can be changed via Wattmon, but I woild like to flash it in bios...
post #514 of 3408
Hello,
i want to set an Voltage Offset in the BIOS from the 470 / 480 (undervoltage) - somebody has already test it?


lg Martin
post #515 of 3408
Quote:
Originally Posted by gupsterg View Post

Memory voltage control in Wattman is "dummy" feature. The voltage control chip IR3567B has only loop 1 used from what The Stilt has stated, ie controls the 6 phases to VDDC (GPU core). Unless a revised ref PCB is done or AIB PCBs get setup differently there is no memory voltage control via Wattman/ROM/i2c AFAIK.

If "Memory voltage control" is a "dummy" feature on 480, and 380 have and NCP81022 that is as well an only one loop controller.
Do you think that what you and The Stilt confirmed to be VDDCI on 380 is a "dummy" feature as well?
Quote:
Originally Posted by The Stilt View Post

On Bonaire, Hawaii and Tonga based cards the second voltage controlled by the same controller as VDDC is always VDDCI, no matter which controller (IR, OnSemi) is used. This is because these cards use SVI2 and VDDC & VDDCI are controlled through SVI2. On Fiji where VDDCI doesn't exist, the secondary voltage on this controller is MVDDC (HBM). Bonaire is the first ASIC to use SVI2.

I've checked on Bonaire / Tobago and HWInfo 5.24 indeed labels VDDCI wrong on these cards (as MVDDC). The MVDDC on these cards is fixed and the controller has no data interface to read the voltage.

Edited by mynm - 9/1/16 at 9:05am
post #516 of 3408
Quote:
Originally Posted by Unclegogi View Post

Does anyone know, what is the address of the field "voltage offset" in BIOS?
RX480 has 0 offset by default, but my non-reference sapphire nitro rx470 has +25mv offset, it can be changed via Wattmon, but I woild like to flash it in bios...
Where is that utility from?
post #517 of 3408
BromoL was kind enough to write it. It's still being worked on. It works well. I use it
post #518 of 3408
Nevermind found it.
Edited by deadman3000 - 8/31/16 at 3:23pm
post #519 of 3408
Anyone have any idea how doing a custom bios based on the Air BIOS I can't get my normal overclock stable. if I paste all the settings from the air bios into the editor onto my stock bios my normal overclock is stable. Same settings in Polaris BIOS editor on the unlocked air bios and it's not stable. Any ideas? The memory timings was the first thing I checked before you ask. There has to be a setting on the unlocked air bios that's destabilizing my overclock that's not exposed by the editor. When I used the straight unlocked air bios I couldn't get the same frequency stable even on the unmodified signed version using my usual overclocking tools. Now I'm fine using a custom version of my stock bios to do the exact same thing.with the exact same settings just with my overclock added in and a slight bump in power limit. I'm just curious if anyone has any ideas as to why my card is less stable with the der8auer bios and can't be overclocked as well with that. I'd love to know.
post #520 of 3408
Quote:
Originally Posted by greytoad View Post

BromoL was kind enough to write it. It's still being worked on. It works well. I use it
Is it published somewhere? OCN, github, ...?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Polaris Bios Editing ( RX5xx / RX4xx )