[UPDATE] RX480 (Ref) 31+Mh, Custom Rom - VDDC OFFSET + Custom timing

[goen]

is this rom files works for windows only?

[1714257798]

1714257798

[1714257798]

1714257798

[1714257798]

1714257798

[ps_jb]

is this rom files works for windows only?

It is BIOS flashing - you can use flash cards on any system

[B1tUnl0ck3r]

I finally used my daily Win10 box to flash my MSI RX 480's (8GB) with the 480LowEnergyOK.rom file. Flashed and put back into my Ubunut 16.04 mining rig. Getting steady 28.5MH/s (171MH/s rig) and the entire rig + box fan is 995w at the wall. 4-5MH/s slower than my R9 390 (8GB) rigs but 1/2 the power. Sapphire Nitro+ RX 480's on the way, but 4GB type this time.

Super happy.

Nice rigs. Congratulation for the successful mod. The watt consumption is quite impressive.

[goen]

i've flash my rx 480 8gb ref card.
hash rate increased from 23 to 25.65M
it cant go higher.

what should i do to reach 30-31mh?


regards,

is this rom files works for windows only?

It is BIOS flashing - you can use flash cards on any system

[maxmad_x]

8GB

After flashing my GPU-Z is showing only 4GB memory. Is it normal behavior?

[ps_jb]

i've flash my rx 480 8gb ref card.
hash rate increased from 23 to 25.65M
it cant go higher.

what should i do to reach 30-31mh?


regards,

That is exactly what I've got after flashing 24.5MHs - nothing helped in my case

[maxmad_x]

Haven't had time to read all the replies.. sorry for that.

For the linux guys.

Rom is here: Here


For Windows 10 users, you can do this:

i) Press Windows Key + X to open Power User Menu. Select Command Prompt (Admin) from the menu.
ii) Once the Command Prompt open, enter bcdedit.exe -set loadoptions DISABLE_INTEGRITY_CHECKS and press Enter. Then enter bcdedit.exe -set TESTSIGNING ON and press Enter.
iii) Close Command Prompt and restart your PC.

If this fails for some reason, you can reboot with Signature checks disabled by rebooting into advanced options (Hold left shift key while hitting reboot button) and hit F7.

You need to copy the modified atikmdag.sys file into your drivers folder as well (C:/Windows/System32/Drivers)

File can be found here: Here

Rom has modified timings and higher limits. (Memory 2275, higher tdp limit...)

I'll do an energy friendly rom later this week.

For the Windows 7 users, i'll look into that this week.

Greetings

Is this mod for 8 gb card or 4gb?

[maxmad_x]

RX480-31.8HighPower.rom dual - ~29 eth, ~450 sia
RX480-31.8HighPower.rom single - >31 eth
RX480Mod.rom dual - ~27 eth, ~400 sia
RX480Mod.rom single >31 eth

Can you please provide the links for these roms? Thank you

[Dev_Sempak_coin]

Is this mod for 8 gb card or 4gb?

8gb

[Coyn]

I have modded (480LowEnergyOK) my XFX rx480 8gb cards now and it works almost perfect.
The first 1-2hours the cards stay at a stable 29mhash, then they will wobble between 24-27 mhash.

I think it has something to do with the temp, but i can't see anything in gpu-z? (my onboard graphics control my screen)



What is there to do?

- Reinstalled the drivers, nothing
- Did the Mod again, nothing

[Eliovp]

I have modded (480LowEnergyOK) my XFX rx480 8gb cards now and it works almost perfect.
The first 1-2hours the cards stay at a stable 29mhash, then they will wobble between 24-27 mhash.

I think it has something to do with the temp, but i can't see anything in gpu-z? (my onboard graphics control my screen)



What is there to do?

- Reinstalled the drivers, nothing
- Did the Mod again, nothing

Card is probably throttling because it gets to hot.

Either you can increase the fan speed because it's only at 27%...
You can lower the core clock/voltage, won't be needed though because it's most likely the fanspeed..


You can also open the rom in PolarisBiosEditor and change max temp to 85 or so.


Further, that isn't normal. You should see your clocks and temp.
Do you have onboard vga turned on and a monitor attached to that?

Otherwise, yes, reinstall drivers.

Greetings

[Coyn]

I have modded (480LowEnergyOK) my XFX rx480 8gb cards now and it works almost perfect.
The first 1-2hours the cards stay at a stable 29mhash, then they will wobble between 24-27 mhash.

I think it has something to do with the temp, but i can't see anything in gpu-z? (my onboard graphics control my screen)



What is there to do?

- Reinstalled the drivers, nothing
- Did the Mod again, nothing

Card is probably throttling because it gets to hot.

Either you can increase the fan speed because it's only at 27%...
You can lower the core clock/voltage, won't be needed though because it's most likely the fanspeed..


You can also open the rom in PolarisBiosEditor and change max temp to 85 or so.


Further, that isn't normal. You should see your clocks and temp.
Do you have onboard vga turned on and a monitor attached to that?

Otherwise, yes, reinstall drivers.

Greetings

The fan goes up to 60% after a while and i already re-installed the drivers, it did not help.
Any other idea?

[Lion BItcoin Shop]

I have modded (480LowEnergyOK) my XFX rx480 8gb cards now and it works almost perfect.
The first 1-2hours the cards stay at a stable 29mhash, then they will wobble between 24-27 mhash.

I think it has something to do with the temp, but i can't see anything in gpu-z? (my onboard graphics control my screen)



What is there to do?

- Reinstalled the drivers, nothing
- Did the Mod again, nothing

Card is probably throttling because it gets to hot.

Either you can increase the fan speed because it's only at 27%...
You can lower the core clock/voltage, won't be needed though because it's most likely the fanspeed..


You can also open the rom in PolarisBiosEditor and change max temp to 85 or so.


Further, that isn't normal. You should see your clocks and temp.
Do you have onboard vga turned on and a monitor attached to that?

Otherwise, yes, reinstall drivers.

Greetings

The fan goes up to 60% after a while and i already re-installed the drivers, it did not help.
Any other idea?

this is like my issue/problem at my XFX Rx480 8gb.
if the temperature reaches 80 degrees upwards then hash rate is going down to 20-25 degrees.

now im not Overclock my card, just undervolt the power -15% ( claymore -powlim -15 ), and the hashrate very stable at 28mhs

[Coyn]

dude, i CANT see my temp... lets focus on that part. 

[BioMoh]

dude, i CANT see my temp... lets focus on that part. 

bro i got your Issue on my Sapphire
raise your fan speed to 90 % at the claymore config add -tt -90 like that

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal 0x5404a56d1b6bd124196a2c17028eeaaf3c9be0ba/worker1/ -epsw x -tt -90

and tell me the difference

[Coyn]

dude, i CANT see my temp... lets focus on that part. 

bro i got your Issue on my Sapphire
raise your fan speed to 90 % at the claymore config add -tt -90 like that

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal 0x5404a56d1b6bd124196a2c17028eeaaf3c9be0ba/worker1/ -epsw x -tt -90

and tell me the difference

My fan's dont respond to the -tt -90 code. No idea what is going on. As long as my room is cooled, the xfx's will run 29 mhash. But when it gets hot they will (throttle?) run 25-27mhash.

I also have the issue with my sapphire's. I tried to mod the rom, went wrong, flashed the original bios rom back, cards are running smoothly 27mhash 80 watt but i cant see temp or clock's. HOW? 

[citronick]

dude, i CANT see my temp... lets focus on that part. 

bro i got your Issue on my Sapphire
raise your fan speed to 90 % at the claymore config add -tt -90 like that

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

EthDcrMiner64.exe -epool eth-eu1.nanopool.org:9999 -ewal 0x5404a56d1b6bd124196a2c17028eeaaf3c9be0ba/worker1/ -epsw x -tt -90

and tell me the difference

My fan's dont respond to the -tt -90 code. No idea what is going on. As long as my room is cooled, the xfx's will run 29 mhash. But when it gets hot they will (throttle?) run 25-27mhash.

I also have the issue with my sapphire's. I tried to mod the rom, went wrong, flashed the original bios rom back, cards are running smoothly 27mhash 80 watt but i cant see temp or clock's. HOW? 

27mhash 80 watt

which original BIOS is that?

Can share?

[citronick]

I finally used my daily Win10 box to flash my MSI RX 480's (8GB) with the 480LowEnergyOK.rom file. Flashed and put back into my Ubunut 16.04 mining rig. Getting steady 28.5MH/s (171MH/s rig) and the entire rig + box fan is 995w at the wall. 4-5MH/s slower than my R9 390 (8GB) rigs but 1/2 the power. Sapphire Nitro+ RX 480's on the way, but 4GB type this time.

Super happy.

Nice rigs. Congratulation for the successful mod. The watt consumption is quite impressive.

I wish I had dabbled some time on Linux - this approach above is much cleaner - any tutorials on Claymore Dual Miner on Linux anyone?

[Coyn]

27mhash 80 watt

which original BIOS is that?

Can share?

https://i.imgur.com/4iq5uQl.jpg here you go! (how can i show it as a picture?)

[BTCBusinessConsult]

27mhash 80 watt

which original BIOS is that?

Can share?

https://i.imgur.com/4iq5uQl.jpg here you go! (how can i show it as a picture?)

Oh Scheizen! So that is just you tweaking the wattman settings and not running a custom ROM?