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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 62

post #611 of 3323
Quote:
Originally Posted by BromoL View Post

The HWiNFO mem errors are the "glitch phase". The problem is not actually the memory, but the datapath from/to the memory. The memory controller has to learn some timings, if that fails you get an instant crash.

So is 2220 safe for me?
post #612 of 3323
Quote:
Originally Posted by Vento041 View Post

So is 2220 safe for me?

I am running with stable 0 memory errors at 2100 MHz. I get less than one error per minute at 2150 MHz but dont like ever increasing error counters. I definitvely would not run my card for extended periods of time with thousands of errors. But you are free to define your own level of acceptable error rate.
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post #613 of 3323
Quote:
Originally Posted by gupsterg View Post


You can find out exact VID per DPM by doing a registers dump in AIDA64, view this video. To see the menu enable status bar in view menu, then right click status bar. The registers dump will exclude any voltage offset by IR3567B.

The VDDC offset coupled with manually set VID per DPM can be handy for some situations.

For example on Hawaii some members found using the offset yielded better stabilty then manually edit VID per DPM as they wanted. To then make idle voltage lower when using an offset just set DPM 0 lower manually (or any other DPMs you want) and then other DPMs technically get the offset applied.

On Fiji as we can't set more than >1.3V manual VID the offset comes in handy as the driver does not detect VID going over the VID limit. I suspect it views what PowerPlay registers show as VID and as that excludes offset it is unaware of it being there. For example if I set DPM 7 manually as 1300mV in PowerPlay then add an offset in IR3567B of what I want, gaining me >1.3V. Then all I do is set DPM 0-6 manual VID from the log at stock taking into context the new offset to reduce them, ie I set +50mV offset in IR3567B, then say DPM 0 is stock 900mV I make it 850mV manual resulting in 900mV with the offset.

AIDA64:
Code:
------[ GPU PStates List ]------

DPM0: GPUClock =  300 MHz, VID = 0.80000 V
DPM1: GPUClock =  466 MHz, VID = 0.81800 V
DPM2: GPUClock =  751 MHz, VID = 0.82400 V
DPM3: GPUClock = 1019 MHz, VID = 0.91200 V
DPM4: GPUClock = 1074 MHz, VID = 0.95600 V
DPM5: GPUClock = 1126 MHz, VID = 1.00600 V
DPM6: GPUClock = 1169 MHz, VID = 1.05000 V
DPM7: GPUClock = 1216 MHz, VID = 1.10000 V

GPU clocks are almost identical to those in Wattman e.g. 1020 MHz instead of 1019 MHz from the dump.
post #614 of 3323
@jstefanop

Register 8E (ie output loop 2 offset) remains 00h in both i2c dumps. Registers 96, 9E, AF, B1, B4, BC, C2 and CB change, I class registers 90 to CF monitoring data.





If you do investigate the registers that have changed you may find this handy. It is still a WIP, recently done no more work on it.
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post #615 of 3323
I have the XFX rx480 8gb from bestbuy with the micro switch and blue LED indicator for power plug.


Im stuck at 1375 @ 1.175 and 2250 @ 1.100 mem controller voltage.


If I do a polaris BIOS edit...:
1) how to fix the 512kb problem? My BIOS saves to 256kb no matter what tool I use (gpu-z, ati tool, polaris, etc..)

2) what do I change to increase power ability? power limt to 50% is a given. but what about max watts? TDC? TDA?


thanks guys
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post #616 of 3323
@cez4r

On Hawaii/Fiji the GPU clocks shown in AIDA64 match what is in ROM PowerPlay, when you open your stock ROM in Polaris bios editor they match with dump?
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post #617 of 3323
@gupsterg

Yep, perfectly.
post #618 of 3323
Please, cant figure out the timings ....i've ended up copy pasting the Reference samsung timings....but this new Sapphire Nitro + 480 4GB has some new VRM controller, and they do not operate with this card, after all it is a Hynix memory....so, pls, help me mod a proper timings for my card, the original ones are so loose, loose like a frisby in a sky..or whatever tongue.gif ...With no further ado....here is the bios.
https://we.tl/8QyDP2aqz8


EDIT: Pls, someone...i only need the values for the timings....or step by step how to figure out myself....at first id doesnt seem difficult...but i do not have electrical knowledge...
Edited by prichina - 9/21/16 at 7:29am
post #619 of 3323
@cez4r

Cheers for confirmation smile.gif.

This is just a theory as I don't have Polaris. I believe AMD Wattman manipulates PowerPlay for VID (+other settings) so you should see change in AIDA64 registers dump but not in i2c dump.

MSI AB does VDDC offset not VID per DPM (correct me if wrong), so as the offset is done via IR3567B but using SMC messaging to send command via i2c we see a change in i2c dump.

If a member has time change VID just for DPM 7 through AMD Wattman and take register dump / i2c before and after. Then do same dumps but change voltage offset via MSI AB. These 4 dumps if member can zip & attach I'd appreciate it.
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Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
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Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
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SilverStone TJ06 Logitech G700S 
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post #620 of 3323
Noone? I will contribute with something, give me assignment, anything...money? Bitcoins? Pls, tighten my memory timings...pls help, at least a hint or something?

Sapphire Nitro + 4gb RX 480
https://we.tl/8QyDP2aqz8
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