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Polaris Bios Editing ( RX5xx / RX4xx )

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post #4211 of 5244 (permalink) Old 08-17-2017, 06:34 AM
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U can use version 1.63.xx.xx found in my thread (signature, post#3), it works with modded roms. It is universal, so every pre-Vega Radeon can use it.

Only thing u have to change is the device id in the header. It has 67DF for 470/480/570/580; 560 would be 67FF; so you have to change the byte at offset 22 to FF.

..and you have to disable secure boot.

update:
there was a problem with 1.63.xx.xx ..had to fix the header.. big sorry if u had problems.
working now.

Comandante R.B.R.T. (Red BIOS Rebellion Team)
Polaris BIOS Mod | Vega PowerPlay Mod | VII PowerPlay Mod
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post #4212 of 5244 (permalink) Old 08-17-2017, 07:07 AM
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Hi everbody;

I have interesting problem. I bought used Asus rog strix rx 480 8gb. it has been crashed when make mining, benchmark test etc. I flashed orginal rom and a lot of custom rom with atiwinflash but problem not solved. I changed Wattman settings you can see as follow, the problem has been solved and mining, benchmark test work great.




I see sensors on GPU-Z it is stable.



I need new custom bios like Wattman settings. I use PolarisBiosEdiot and I modify settings but black screen or crash problem still continue when not use wattman. I dont want to use wattman setting. I would use own bios setting cause of mining on Linux

I think problem cause by "Gpu only Power Draw" or Memory Controller Load.. Stable picture"GPU only Power Draw" value is 72 W and Memory Load %87 but custom bios power value is 78, memory %99 as below



How can I modify custom rom for Asus Rx 480 like Wattman settings? My bioıs file as below. Could you please modify my bios rom like wattman?

rx480.zip 110k .zip file
Attached Files
File Type: zip rx480.zip (110.4 KB, 13 views)
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post #4213 of 5244 (permalink) Old 08-19-2017, 10:39 AM
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Anyone know how to flash the RX 550? ATIWinFlash274 is like Cannot Find ATI Discreet Video Card...

Dell Precision T7500 : Dual Xeon X5675 @ 3.536Ghz X 24 Threads : 48 Gigabytes : Cinebench R15 : 1505 : AMD R9 390X 8GB @ 1173Mhz 1350mv 57599 Power Limit @ 1250Mhz memory error free on tight timings / since 1500mhz+ had errors galore
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post #4214 of 5244 (permalink) Old 08-19-2017, 10:52 AM
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try 2.77
my thread, preliminary view.. or somewhere here in this thread..

Comandante R.B.R.T. (Red BIOS Rebellion Team)
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post #4215 of 5244 (permalink) Old 08-19-2017, 12:52 PM
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Quote:
Originally Posted by hellm View Post

try 2.77
my thread, preliminary view.. or somewhere here in this thread..

Thanks. Any word On RX 550 LP 2GB to RX 560 unlock? 16 ROP : 64 TMU : 1024 Shader?

Dell Precision T7500 : Dual Xeon X5675 @ 3.536Ghz X 24 Threads : 48 Gigabytes : Cinebench R15 : 1505 : AMD R9 390X 8GB @ 1173Mhz 1350mv 57599 Power Limit @ 1250Mhz memory error free on tight timings / since 1500mhz+ had errors galore
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post #4216 of 5244 (permalink) Old 08-19-2017, 02:26 PM
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Hello guys, im new in this forum and im trying to mod my GPU's for mining. i mean modifying BIOS. so far i was able to do many things and got stable hash and power, but there is still lot to do. im not satisfied only with copy paste timings.

i have these GPU's:

gigabyte rx 580 gaming 8GB with Hynix memory H5GC8H24MJ

took 1750 timings and pasted into 2000 & 2250
1200/2200 and getting 31MHs in claymore - no mem errors in hwinfo

gigabyte rx 570 aorus 4GB with Hynix memory H5GC4H24AJ

took 1500 timings and pasted into 1625,1750,2000
1200/2000 and getting 28,2MHs in claymore - 1-5 errors per day


what i want to achieve is get the best timings and stable memory frequency, so if someone will be that kind and will guide me somehow where to start? maybe where to find Hynix factory timings for that above memory, what is the important value in timings or where/how to find maximum value for each frequency (2000-2200?), what is the maximum frequency for my Hinzx memory? any advice is much appreciated. i was searching this tread for results, on first page there is i assume timings for samsung memory only and all is about rx 470/480. and in search got 1000+ results...anyway thank you for your time.
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post #4217 of 5244 (permalink) Old 08-19-2017, 03:00 PM
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@neoba

You can follow basically every general memory OC guie, really summed up:

  • Raise your IMC voltage until best point in your opinion or max safe voltage (I keep it at 1100 mV, safe should be 1150).
  • Raise your frequency until (Choose one) you reach you max :
    • ... with no EDC errors at ALL
    • ... with some EDC errors only when memory frequency change but no errors when frequency is fixed
    • ... very few constant errors (EDC error explanation on the end of this post)
  • Found you voltage and frequency, lower your timings by copying strap until you invalid the choice done before
  • Found the strap to use as base, download my program R_Timings and begin to mess with every single timing until you invalid the choice done before



EDC errors are they bad?

No necessarily, it means and Error happen inside your board, it has been Detected and Corrected (from these actions Error Detection and Correction). If you see errors it means that you card EDC circuit is working at least... sure 0 error is perfect, but some error is always better than undetected (and uncorrected) errors (that could lead to a crash).

Errors could occurs
  • when your GPU start to work (frequency change)
  • when the frequency is too high
  • when the memory voltage is too low (this might be unchangeable in Polaris card am I right? Confirmation needed...)
  • when the IMC (memory controller) voltage is too low
  • randomly (unlikely but can occurs)
  • when the timings are too tight
  • current spikes
  • voltage is not clean enough (can be partially avoided with VRM oc, bios mods needed or third party software like VRMTool, PCB dependent)
  • ....


Anyway, we are talking about errors in the communication between your IMC and your memory chips, the causes could be multiples but the solution is always the same, data resend: what has been corrupted must be resent again and again until it arrives intact.

To many errors are the reason why apparently high "stable" memory OC could perform worse that lower memory OC, the GPU isn't crashing but the errors could be so frequent that you card is waiting more time correcting errors than sending actual data.

Zephyr R.B.R.T. (Red BIOS Rebellion Team)
(*) ATOMTableResize (*) R_Timings - Encode/Decode RX/R9 Memory Straps
(*) Sapphire RX 480 Nitro+ OC - Better Custom BIOS (*) SimpleBiosDiff
(*) Extremely short guide on EDC errors (*) jYABE - Yet Another Bios Editor (early stage of development)
Bought a XFX RX 590 Fatboy! Looking for IR 35217 datasheet! Selling my Hybrid RX 480 Nitro+ OC 8GB.


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post #4218 of 5244 (permalink) Old 08-19-2017, 03:01 PM
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Quote:
Originally Posted by neoba View Post

what is the maximum frequency for my Hinzx memory? any advice is much appreciated. i was searching this tread for results, on first page there is i assume timings for samsung memory only and all is about rx 470/480. and in search got 1000+ results...anyway thank you for your time.

There is no way we could tell you what the max frequency your Vram will run at because all Silicon is different. You have to test that yourself and find it on your own.

Also rx500 is just overclocked rx400 series for the most part, alot of the same advice and such still applies as they're the same GPU

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post #4219 of 5244 (permalink) Old 08-19-2017, 03:25 PM
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@Vento041

- well i would like to under volt my gpu's for mining, but i assume you recommend me to use that high voltage due to stability with overclocking? after i find my core/mem/timings then undervolting will be in place, am i right?
-what is IMC?
-part with timings is most challenging for my, need to read guide on first page thoroughly
-will wait for your EDC part smile.gif are you talking about error which hwinfo64 shows as GPU memory errors?
-is better more oc memory/slower(higher?) straps/timings or lower memory OC but more aggressive timings/straps?

@Echoa

i understand each gpu is a bit different, so i thought something like vendor maximum not what i am able to achieve with my piece of silicon smile.gif thats why i was asking if there are somewhere around Hynix specification for my type of memory above.


i thank you both of you, will play with my gigabyte rx 580 XTR 8GB a bit smile.gif
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post #4220 of 5244 (permalink) Old 08-19-2017, 03:27 PM
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@neoba

if you use it to mine, simply undervolt it instead of overvolting it, and follow the guide.

IMC: integrated memory controller

Zephyr R.B.R.T. (Red BIOS Rebellion Team)
(*) ATOMTableResize (*) R_Timings - Encode/Decode RX/R9 Memory Straps
(*) Sapphire RX 480 Nitro+ OC - Better Custom BIOS (*) SimpleBiosDiff
(*) Extremely short guide on EDC errors (*) jYABE - Yet Another Bios Editor (early stage of development)
Bought a XFX RX 590 Fatboy! Looking for IR 35217 datasheet! Selling my Hybrid RX 480 Nitro+ OC 8GB.


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