R9 Nano Modded Rom

[mrmaroon]

I mine with the ethpool.org. I noticed that my 6x nano has more stable shares (6-10%) than the 6x390 (1-3%). Anybody has similar experience?

What miner are you using? I've tried every miner and I use claymore dual miner now (1.4 is best). It works the best for me. I get 0 invalid shares on 5 390x sapphires, 6 380 strix, and 5 XFX Nanos. Using windows 8.1.

My hashrates and settings are

5-390x
30Mh/s per card 1110mhz/1501mhz -37Mv 0% power. I am using 1450 watts and mining at 152Mh/s average. They can go as high as 33Mh from what ive tested. I will get invalids going that high.

5-Nanos
Im using the -75mV VDDC, -100mV MVDDC Rom
Claymore Dual miner, ive been able to run Decred on it and be stable too with decred intensity 15. This adds 80 watts and 4C to temps.

+96Mv/100% power
975Mhz/300Mhz

Getting 28.5Mh per card on miner, 140Mh average on pool ethermine:14444. Im using 900 watts.

My 380s dont get invalids either.

[citronick]

On a stock Nano is there a difference in the bios if I flip the switch? Or are they both the same? I want to flash left position with stock bios from right, then flash right with modded bios and try that way. If they are different though, can someone upload the two stock roms? Still having problems that the guy above was having, if I go over 950Mhz core it gets laggy and dies. Then if I want to start again I have to DDU and reinstall 16.1 drivers. Im powering down and unplugging electricity too 

The main and backup bios is the same.

You just need a add some voltage to the Core. I have similar issues.

Ive added +100mv and 100% power on afterburner, still no luck. How did you add more power to core?

You have to use the Sapphire Trixx. It allow 200mV higher or lower.  I used it for my R9 390 rigs.

Mrmaroon, you should check out other things for your issue mate, like i said several times, 100 nano's here, not one with any issues like that..

Asdalani, i flashed bios with the one a few posts above. This has allowed me to run at 975Mv so 28 Mh/s per card. Ill try Trixx on the Nanos, when i used it before on 390s I couldn't find a way to change settings across all cards at once. Is there a way to link similar cards like AB?

Eliovp, Sorry man   I am happy with this ! But still want to figure out why its crashing before 1000. I know its something i'm not seeing, I appreciate the help! Ive read this whole thread like 5 or 6 times  

Citronik, I thought about adding the Mobo molex connectors, but everywhere I read said not to with powered risers. Some people said they were melting cables I will try it with one and both connectors today. I figured Nanos didn't draw enough to need them. My 5 390x sapphires don't have them plugged in and they overclock normally if I try it. I undervolt them as much as possible tho. I'll try and learn more about it.

Also I was running 16.1.1 drivers and when it crashed I would have to F8->safemode->DDU-> reinstall drivers - Or I just got a black screen after windows. When I switched to 16.4.2 I haven't had this issue after crashing. Maybe this will save you some time.

I think the black screen was from afterburner. When it crashed (atiksysdag or machine_check) it would try and keep my high clock settings, but set the voltage and power% back to 0. So the cards would insta-crash. In safe mode I delete the afterburner profiles from folder. Then I can reboot without DDU.

from my study of the H81-BTC boards - these are originally for LTC, BTC era and those ribbons PCI connectors draws as much as additional 75w per card. You will have no issues using unpowered risers for older cards (or the power efficient Nano). The short circuit issues happens when power hungry cards like 390/390x that draws as much as 270w per card - without powered molex or powered risers, GPU overdraw too much from board which is only able to handle 70w per card. See that post about "H81 BTC Beware".... IMHO, no fault of H81-BTC, you need the molex powered as instructed by ASrock. What makes it worse is that ribbon cable quality is very low, and if used for newer power hungry cards - surely spell overheat and fire hazard. The powered connector is soldered manually and taped around with duct tape. The USB3 powered risers are much better 390s.

For my case, my 5 x 390s draws 13XXwatts from my EVGA 1600w, and that is undervolted, and overclocked - I couldn't get to 6 cards because it will exceed 1600watts. I can downclock it to about 26MHs to keep it under 1600w - in this condition, molex and powered risers is a must to give the cards enough power.

[citronick]

I mine with the ethpool.org. I noticed that my 6x nano has more stable shares (6-10%) than the 6x390 (1-3%). Anybody has similar experience?

What miner are you using? I've tried every miner and I use claymore dual miner now (1.4 is best). It works the best for me. I get 0 invalid shares on 5 390x sapphires, 6 380 strix, and 5 XFX Nanos. Using windows 8.1.

My hashrates and settings are

5-390x
30Mh/s per card 1110mhz/1501mhz -37Mv 0% power. I am using 1450 watts and mining at 152Mh/s average. They can go as high as 33Mh from what ive tested. I will get invalids going that high.

5-Nanos
Im using the -75mV VDDC, -100mV MVDDC Rom
Claymore Dual miner, ive been able to run Decred on it and be stable too with decred intensity 15. This adds 80 watts and 4C to temps.

+96Mv/100% power
975Mhz/300Mhz

Getting 28.5Mh per card on miner, 140Mh average on pool ethermine:14444. Im using 900 watts.

My 380s dont get invalids either.

Using CDM v4.5, ethpool.org and for both rigs below, 0% invalids. Powered risers and molex. '

H81-BTC/Celeron1840/W81/8GB RAM/120GB SSD/EVGA1600/USB3 Powered risers.

MSI R9-390: -100mV, 1050mhz, 1125mhz, 30MHs per card, 5 x 390 = 150MHs, temps=75-76c

Sapphire Nano: -150mV rom mod, 1040mhz, 300mhz, 29-30MHs, 6 x Nano = 177.8MHs, temps=74-75c

[Crypto84]

Talan,

Thx for that register dump.

Now try this one.

Link

Flash it, completely shut down your system (Turn off the electricity!), completely remove driver (DDU), reinstall driver, remove Afterburner profiles, run afterburner and slightly go down on the core voltage (steps of -6mV)
This one has -75mV VDDC and -75mV MVDDC. so basically you can still go to -100mV if you lower your core voltage in afterburner to -25mV. Your system will be already booted and won't be going crazy like it is right now.

If this works, let me know, i'll lower the memory voltage until you hit the sweet spot.


For all you other guys out there.

Here, R9390Nitro With Backplate modded rom that i'm using.

This rom will make your nitro into a power hungry beast so please be careful.
First run stock clocks(after the flash), if it's ok, raise your core voltage with little steps (+6mV).
DO NOT flash this rom on any other R9 390 brand. It will definitely screw it up!
So ONLY R9 390 Nitro with backplate. 


Link


Also.

This is a modified bios. Yeah...
This will void your warranty.
I am not responsible for a failed bios flash or damaged card resulting in the usage of this bios.
By downloading this you are agreeing that you take full responsibility for using this bios and hold no liability to me or this site.
If you feel uncomfortable, than don't.
If for some reason you do brick your card, because you probably didn't read my instructions to careful :p and you can't afford another one, than don't..
If you're happy with everything as it is right now, than don't.
If you're like me, and you want to get the most out of your GPU's. Than yeah. go ahead..
This goes for every bios i share.


Greetings!

What hashrate do you get with this rom?

[Eliovp]

Using -150mV rom mod on Sapphire R9 Nano
Results: Clocks:800core/300mem, 657watts, 2.67Amps, 132.5 MHs, temps=59-61c, fans=19% (mining ETH mode, CDM 4.5)
Current system: Win8.1, Cat-16.5.3, ASrock H81-BTC, 1840 Celeron, 8GB RAM, 120Gb SSD, USB3 Powered Risers, EVGA1600

Notes:
1. Big saving$ on PSU - now can replace it with smaller PSU.
2. Cranking up to core clock to 1040mhz/300Mhz memclock, gets to about 176MHs but wattage and amps will increase too 1348w and 5.4amps. Temps will also rise to 76-77c and fans 49%

Next project 2nd attempt on -175mV rom mod.
It worked well on 1 x Nano (see my previous post)
When I got all 6 on same rom mod, I had issues bringing up safe mode to apply DDU. I may have given up too soon. Will try and get this going after I see how stable the -150mV rom mod runs after a few hours mining ETH only with latest CDM 4.5

UPDATE:
1. Looks like -200mV is not for me.... after flashing, power off, DDU etc.... installation of of Catalyst 15.12 or latest 16.x.x hung halfway at 12%. Rebooted cold or reset, blank screen.
2. well.... the -175mV rom did not go well too.... after reflashing, DDU, install of Catalyst latest drivers... Launching CDM goes silent after identifying the Nanos. Tried qtminer, also no luck.
3. Decided that -150mV is probably best mod for now until Heliox gives a few more ideas on how to fix issues above.

Citronick,

I have 3 or 4 cards that have been stable with the -200mV since i released it. the others gave up after a while as well tbh.
For now i have 3 cards that are running the -150mV as they kept failing after a while as well. All the others (90pcs) are running with the -175mV rom and are stable for over a month now. A few rigs even longer, 40+days non stop.

I can't explain why some seem to have so much issues with the "tough" roms as it all goes smoothly over here. Maybe it's because i have an early batch? Dunno..

What hashrate do you get with this rom?

Currently running @ 1220 core clock @ around 35-36Mh/s. 1260 gives me 39 but temperatures rise to 85degrees because it's getting hotter every day here.

greetings!

[mrmaroon]

Using CDM v4.5, ethpool.org and for both rigs below, 0% invalids. Powered risers and molex. '

H81-BTC/Celeron1840/W81/8GB RAM/120GB SSD/EVGA1600/USB3 Powered risers.

MSI R9-390: -100mV, 1050mhz, 1125mhz, 30MHs per card, 5 x 390 = 150MHs, temps=75-76c

Sapphire Nano: -150mV rom mod, 1040mhz, 300mhz, 29-30MHs, 6 x Nano = 177.8MHs, temps=74-75c

Ill try plugging in the molex if you're getting that low of mV on 390s. I can go to about -75mv but if my miner dies or I close it the system crashes. Mine hash at 28 with stock core clocks. Your temps are way hotter than me though, I never go above 65C? This is in the top floor of a building that stays 85-95F. My cards are vertical. I'm using powered USB risers also, didn't mention that before. H81, i5, 8GB ram, SSD, ax1500i psu.

I've been having really bad luck with CDM 4.3-4.5, won't connect to servers or it crashes randomly. Rolled back to 4.1.

@Eliovp, will that 390 rom work with a 390x sapphire Nitro? the silver not the gold?

[mrmaroon]

Citronik, I owe you a case of beer, I plugged in the 2 motherboard molexs and its working fine now 

[citronick]

Citronik, I owe you a case of beer, I plugged in the 2 motherboard molexs and its working fine now 

LOL -- that's great news! Happy mining. Cheers!

[citronick]

Using -150mV rom mod on Sapphire R9 Nano
Results: Clocks:800core/300mem, 657watts, 2.67Amps, 132.5 MHs, temps=59-61c, fans=19% (mining ETH mode, CDM 4.5)
Current system: Win8.1, Cat-16.5.3, ASrock H81-BTC, 1840 Celeron, 8GB RAM, 120Gb SSD, USB3 Powered Risers, EVGA1600

Notes:
1. Big saving$ on PSU - now can replace it with smaller PSU.
2. Cranking up to core clock to 1040mhz/300Mhz memclock, gets to about 176MHs but wattage and amps will increase too 1348w and 5.4amps. Temps will also rise to 76-77c and fans 49%

Next project 2nd attempt on -175mV rom mod.
It worked well on 1 x Nano (see my previous post)
When I got all 6 on same rom mod, I had issues bringing up safe mode to apply DDU. I may have given up too soon. Will try and get this going after I see how stable the -150mV rom mod runs after a few hours mining ETH only with latest CDM 4.5

UPDATE:
1. Looks like -200mV is not for me.... after flashing, power off, DDU etc.... installation of of Catalyst 15.12 or latest 16.x.x hung halfway at 12%. Rebooted cold or reset, blank screen.
2. well.... the -175mV rom did not go well too.... after reflashing, DDU, install of Catalyst latest drivers... Launching CDM goes silent after identifying the Nanos. Tried qtminer, also no luck.
3. Decided that -150mV is probably best mod for now until Heliox gives a few more ideas on how to fix issues above.

Citronick,

I have 3 or 4 cards that have been stable with the -200mV since i released it. the others gave up after a while as well tbh.
For now i have 3 cards that are running the -150mV as they kept failing after a while as well. All the others (90pcs) are running with the -175mV rom and are stable for over a month now. A few rigs even longer, 40+days non stop.

I can't explain why some seem to have so much issues with the "tough" roms as it all goes smoothly over here. Maybe it's because i have an early batch? Dunno..

What hashrate do you get with this rom?

Currently running @ 1220 core clock @ around 35-36Mh/s. 1260 gives me 39 but temperatures rise to 85degrees because it's getting hotter every day here.

greetings!

A few more Nanos coming in today - so I will try again the elusive -175 and -200 mods - it could be batch issues - will let you know results. The -175 mods is really the one that I would like to have for these Nanos.

Btw, do you have the link for the 390 rom mod? Will it work on MSI-R9-390?

[citronick]

Using CDM v4.5, ethpool.org and for both rigs below, 0% invalids. Powered risers and molex. '

H81-BTC/Celeron1840/W81/8GB RAM/120GB SSD/EVGA1600/USB3 Powered risers.

MSI R9-390: -100mV, 1050mhz, 1125mhz, 30MHs per card, 5 x 390 = 150MHs, temps=75-76c

Sapphire Nano: -150mV rom mod, 1040mhz, 300mhz, 29-30MHs, 6 x Nano = 177.8MHs, temps=74-75c

Ill try plugging in the molex if you're getting that low of mV on 390s. I can go to about -75mv but if my miner dies or I close it the system crashes. Mine hash at 28 with stock core clocks. Your temps are way hotter than me though, I never go above 65C? This is in the top floor of a building that stays 85-95F. My cards are vertical. I'm using powered USB risers also, didn't mention that before. H81, i5, 8GB ram, SSD, ax1500i psu.

I've been having really bad luck with CDM 4.3-4.5, won't connect to servers or it crashes randomly. Rolled back to 4.1.

@Eliovp, will that 390 rom work with a 390x sapphire Nitro? the silver not the gold?

I live in a tropical country near the equator, so 75c aint too bad. I have box fans running 24x7 on the rigs.

[Eliovp]

A few more Nanos coming in today - so I will try again the elusive -175 and -200 mods - it could be batch issues - will let you know results. The -175 mods is really the one that I would like to have for these Nanos.

Btw, do you have the link for the 390 rom mod? Will it work on MSI-R9-390?

Sounds great

No mate, read my post a few pages back. Only for Sapphire 390 Nitro w/ Backplate.

Greetings!

[Crypto84]

Small update (got a pm from someone with issues.)
For those with problems, this package "here" includes -106mV, -112mV, -118mV and -125mV memory clock.
Core clock is still 800 stock, memclock 300, core voltage -100.

If you still have problems with one of these roms, pump up your core voltage (+6mV), some cards just won't do -100mV with a monitor attached.


New Update

Details rom usage.
---------------
Ethereum tests:

134 Mh/s @ 2.25A, 495watt (6 Cards) stock settings rom

185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem

Enjoy![/size]

What the highest hashrate you were able to get out of a nano?

[citronick]

A few more Nanos coming in today - so I will try again the elusive -175 and -200 mods - it could be batch issues - will let you know results. The -175 mods is really the one that I would like to have for these Nanos.

Btw, do you have the link for the 390 rom mod? Will it work on MSI-R9-390?

Sounds great

No mate, read my post a few pages back. Only for Sapphire 390 Nitro w/ Backplate.

Greetings!

The MSI R9-390 are also with back plates 

[citronick]

Small update (got a pm from someone with issues.)
For those with problems, this package "here" includes -106mV, -112mV, -118mV and -125mV memory clock.
Core clock is still 800 stock, memclock 300, core voltage -100.

If you still have problems with one of these roms, pump up your core voltage (+6mV), some cards just won't do -100mV with a monitor attached.


New Update

Details rom usage.
---------------
Ethereum tests:

134 Mh/s @ 2.25A, 495watt (6 Cards) stock settings rom

185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem

Enjoy![/size]

What the highest hashrate you were able to get out of a nano?

I have 29-30MHs with -150 mod. -6mV/1040/300

[greaterninja]

I've modded my sapphire 380 tonga bios.   temps went from high 75-88c to 67c.

I haven't ran the kwmeter, but I'm guessing the 380 now pulls about 150-160 watt per card now at 20mh/s.

My main concern was heat being transferred into my apartment



EDIT: got the temps down to 53-68C on the 380....aah no more sweating balls.

[RastoMan]

I've modded my sapphire 380 tonga bios.   temps went from high 75-88c to 67c.

I haven't ran the kwmeter, but I'm guessing the 380 now pulls about 150-160 watt per card now at 20mh/s.

My main concern was heat being transferred into my apartment



EDIT: got the temps down to 53-68C on the 380....aah no more sweating balls.

That is very good result. My 390 can mine 27.5 MH/s with 160 W. So that is good achievement for the 380.

[citronick]

Heliox - just to update that I managed to get the -175mV working on the new batch of Nanos.

I have not got all 6 cards in a complete setup yet, but testing on 1 card is a success.
I will run it overnight before flashing the other cards.
I will report the kill-lo-watt meter readings tomorrow morning.

As of now, with -175mV rom:
-6mV,1040/300 = 30.3MHs at fans= fix 60%, temps 67-68c
and
stock -175mV,800/300 = 22.4MHs, temps 62-63c, auto fans

I am tempted to try the -200mV rom.

Is it normal that some rigs will have 150 roms and some 175 roms, mixed configs in your environment?

[Bokelka]

Heliox - just to update that I managed to get the -175mV working on the new batch of Nanos.

I have not got all 6 cards in a complete setup yet, but testing on 1 card is a success.
I will run it overnight before flashing the other cards.
I will report the kill-lo-watt meter readings tomorrow morning.

As of now, with -175mV rom:
-6mV,1040/300 = 30.3MHs at fans= fix 60%, temps 67-68c
and
stock -175mV,800/300 = 22.4MHs, temps 62-63c, auto fans

I am tempted to try the -200mV rom.

Is it normal that some rigs will have 150 roms and some 175 roms, mixed configs in your environment?

It is very normal. I have nano accepting the -200, 175, 150 and 125. That is depending on your luck.

[citronick]

Heliox - just to update that I managed to get the -175mV working on the new batch of Nanos.

I have not got all 6 cards in a complete setup yet, but testing on 1 card is a success.
I will run it overnight before flashing the other cards.
I will report the kill-lo-watt meter readings tomorrow morning.

As of now, with -175mV rom:
-6mV,1040/300 = 30.3MHs at fans= fix 60%, temps 67-68c
and
stock -175mV,800/300 = 22.4MHs, temps 62-63c, auto fans

I am tempted to try the -200mV rom.

Is it normal that some rigs will have 150 roms and some 175 roms, mixed configs in your environment?

It is very normal. I have nano accepting the -200, 175, 150 and 125. That is depending on your luck.

I had no luck with Nanos I bought from Amazon - best was only the -150mV working, not the 175 and 200 mods
But this new batch seems to be ok - I was surprised to get it to 32MHs -100mV, 1040, 300 without the rom mod.
With the mod, I am getting 30MHs -150mV,1040,300 with lower watts and amps - which I need because electricity is expensive in my country.

[lawrencelyl]

Heliox - just to update that I managed to get the -175mV working on the new batch of Nanos.

I have not got all 6 cards in a complete setup yet, but testing on 1 card is a success.
I will run it overnight before flashing the other cards.
I will report the kill-lo-watt meter readings tomorrow morning.

As of now, with -175mV rom:
-6mV,1040/300 = 30.3MHs at fans= fix 60%, temps 67-68c
and
stock -175mV,800/300 = 22.4MHs, temps 62-63c, auto fans

I am tempted to try the -200mV rom.

Is it normal that some rigs will have 150 roms and some 175 roms, mixed configs in your environment?

It is very normal. I have nano accepting the -200, 175, 150 and 125. That is depending on your luck.

I had no luck with Nanos I bought from Amazon - best was only the -150mV working, not the 175 and 200 mods
But this new batch seems to be ok - I was surprised to get it to 32MHs -100mV, 1040, 300 without the rom mod.
With the mod, I am getting 30MHs -150mV,1040,300 with lower watts and amps - which I need because electricity is expensive in my country.

My XFX Nano was from Amazon and it's working good with -175mV.