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, For a 390 yes, not for Fiji, +75 max, AB does +100max (or minus..) |
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eliovp -- i dont see DPM150.rom in the package was it left out?
Here you go  |
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Heliox....
Btw, just to get my strategy correct the first time...
I am currently running H81 mobo, 1840 Celeron, 8GB RAM, USB3 powered risers, 1300w EVGAs, 5 x Sapphire Nanos.
Using Claymore Dual Miner, ETH and DCR, currently without Rom mods, 133MHs, -100mV, 1070, 525 @1128watts
My goal:
185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem
Replace the 1600w to 1300w PSU
Add one more Nano to total 6 cards from 5.
Question:
1. which rom mod shoudo I use to get the 185MHs/1050w/1020/300/4.8A ?
2. the Dual Miner's DCR mining... what impact does it have on achieving the 185MHs?
3. Mining DCR, is DCR memory intensive?
4. Claymore dual miner, creates the DAG on the GPU memory... any impact since we are underclocking it to 300?
Thanks
Got almost the exact same setup mate. H81 pro btc board, 8GB ram, USB3 powered risers, the only thing that's different is that i have LEPA G1700 and G1600 PSU's and 6 Nano's hooked. Also running Claymore's dual miner but not mining both, only ETH. 1. -150mV MVDDC (DPM150.rom) would do just fine. 2. I haven't tested Dual mining as i wasn't interested at the time and i'm still not :p So you would need to do that yourself 3. I don't believe so, it's more memory intensive than Eth but still not "that" intensive. 4. Nope, no impact at all. Greetings I am using the 175 rom now and seems stable - I am now reinstalling the Crimson drivers and its stable through-out. But...... since I am going for the 185MHs goal.... would a -150mV better than a -175mV, because I would need more juice to hit 185MHs with 6 x cards? If you keep that memclock @ 300, -175 will run fine. 200 however won't (i think) the more things you guys test, the more knowledge i have, i've tested so many things but obviously not "everything" Greetings |
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Heliox....
Btw, just to get my strategy correct the first time...
I am currently running H81 mobo, 1840 Celeron, 8GB RAM, USB3 powered risers, 1300w EVGAs, 5 x Sapphire Nanos.
Using Claymore Dual Miner, ETH and DCR, currently without Rom mods, 133MHs, -100mV, 1070, 525 @1128watts
My goal:
185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem
Replace the 1600w to 1300w PSU
Add one more Nano to total 6 cards from 5.
Question:
1. which rom mod shoudo I use to get the 185MHs/1050w/1020/300/4.8A ?
2. the Dual Miner's DCR mining... what impact does it have on achieving the 185MHs?
3. Mining DCR, is DCR memory intensive?
4. Claymore dual miner, creates the DAG on the GPU memory... any impact since we are underclocking it to 300?
Thanks
Got almost the exact same setup mate. H81 pro btc board, 8GB ram, USB3 powered risers, the only thing that's different is that i have LEPA G1700 and G1600 PSU's and 6 Nano's hooked. Also running Claymore's dual miner but not mining both, only ETH. 1. -150mV MVDDC (DPM150.rom) would do just fine. 2. I haven't tested Dual mining as i wasn't interested at the time and i'm still not :p So you would need to do that yourself 3. I don't believe so, it's more memory intensive than Eth but still not "that" intensive. 4. Nope, no impact at all. Greetings |
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134 Mh/s @ 2.25A, 495watt (6 Cards) stock settings rom
185 Mh/s @ 4.8A, 1050 watt (6 Cards) 1020 Core, 300 Mem so the stock rom only 22mhs for each R9 Nano ? it's very small hash , how much the based clock ? Stock modded rom = 22Mh/s because the core clock is set at 800 to reduce electricity usage. You can up that core clock to 1000 and you'll be hashing at around 30Mh/s. if i mod ROM of my R9 NANO, the guarantee will be broken too?
Yes, your warranty will be broken. (I had to send a few back, Nano's, they were flashed as well, i got them back replaced brand new. so basically it depends on manufacturer.. ) |
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Which memory frequency strap did you change, where do you get the mod memory frequency? Or How do you decide the strap?
Used The Stilt's 1250MHz timings for the 1126-1250 strap, The Stilt's 1250 Timings for the 1251-1375 strap and the 1375MHz Stilt timings for the 1376-1500 strap. What do you mean with "where do you get the mod memory frequency? Same with last question, don't really know what you mean by that mate.. Greetings |
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When you under volt, do you just change the base voltage to 800 mV or lower? Do you have one for XFX?
No i don't, i add an offset of "for example" -25mV to the rom so that voltage (VDDC) is added to all DPM states or reduced from all DPM states. In this case the voltage controller dynamically changes the voltage (as it is also when stock rom). But now of course with a reduced (or raised in this case) standard VDDC that i set in the rom itself. Thanks a lot!
can you also post the number are you getting with these in terms of hash at clocks you use and power draw - if you did measurments
I should do retest because i can't remember what the numbers were. How do you change the R9 390 memory timing? Do you copy the 800MHz timing to replace the 1000 MHz ones?
Check here: http://www.overclock.net/t/1561372/hawaii-bios-editing-290-290x-295x2-390-390xUnder Memory Timings Modding.  Greetings |
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Can you mod for an undervolt one - that is especially important for this power hungry r9 390?
I'll post an undervolted one later today. Thanks for your answer, Eliovp!
I tested with only one Nano connected. Directly plugged into the Motherboard -before that I used powered riser. I have no molex plugged into the motherboard (which should be fine as I have only one card connected and if more, only via powered riser).
As a power supply, I use the ESVGA 1300 Watt. Completely new with one dedicated rail for each gpu. Otherwise there's only the HDD and mainboard that uses power. That definitely should be sufficient.
The Motherboard is H81 btc. I updated to the latest firmware...
What AMD driver version are you running?
I will run some tests tomorrow, but there are not many options left.
Cheers,
Talan
I'm running 16.1.1, 16.4.1 and 16.5.3 All doing perfectly fine! I however run my 6 nano rigs with a LEPA G1700 (and a few G1600's). But your setup seems to be okay. Good luck with the tests, i seriously hope you figure it out! There must be a reason why it's failing. It's just finding it that can sometimes be a struggle. Greetings! |
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Hmmm.... so I should not use this Nitro ROM mod on my MSI R9 390? This also have a backplate....
No you should not |
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Talan, Thx for that register dump. Now try this one. LinkFlash 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.  LinkAlso. 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! |
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Hi, Thanks much for your answer.
I completely uninstalled everything. Even with DDU.
However, the following still happens: When no monitor plugged in on the nano, then no data in gpu-z/afterburner is shown. Once plugged in, core/mem clock + temp immediately show up in gpu-z/afterburner.
Of course, with monitor the overclocking capabilities of the core from 800 to above 900 fails and the gpu crashes.
What am I missing here?
I am using the AsRock H81 Pro BTC as mainboard. Any wrong BIOS settings? I also put the gpu directly on the MB without riser. Same result.
Btw someone else had the same issue in this thread. But no result was posted.
Let me know if you have some more ideas.
Thank you!
I have the same issue as you with my Nano. Even on stock Bios is the same. I gave up troubleshooting so I just plug in monitor  I can only think of 2 things really. Or you've not disabled onboard vga in your bios settings. Or it's the driver(which i doubt as i tested several drivers..). Hi lawrencelyl and Eliovp,
I did many tests today- but still the same issue. First of all, you are right, lawrencelyl, this situation is even there with the stock bios. So it's not a mod issue.
I've been running tests today by running it in win7,win8 and win10. all clean installs. driver left and right. I now doubt it's a driver issue.
When core clock increase, the system gets very unstable. As mentioned, nano crashes when I increase the core clock from 800 to 900. I even tried to increase the core clock by 50mV.
@lawrencelyl : Can you run the bios mod with monitor plugged in? What are your settings in afterburner and which mem clock mod are you running? Are you on XFX?
At the beginning I thought it's due to the monitor. Or could it be another issue?
Eliovp, would a snapshot of my stock bios somehow help you to see if we now have a fundamental difference? Let me know.
I'll run some more tests next week, but not many ideas left what to try...
Cheers,
Talan
Hey Talan, A dump of your rom wouldn't help. As it does not matter which one you use because they're all reference designs and my rom should work on any nano out there. (at the time of writing). Again, i have a strong feeling that you guys haven't turned off the onboard vga. As that is the only way i have experienced this kind of issue in the past (afterburner and gpu-z not showing everything..) As said before, i use 16.1.1 and 16.4.1 drivers on my nano rigs. They both work perfect, no monitor attached, everything works as it should. The increasing of the core clock from 800 to 900 and it freezing is another story, that definitely shouldn't happen as i can raise my core clock to 1000 with an undervolt of -100mV VDDC without any problems at all. That points out in your PSU failing for some reason, or the way you powered your risers or something. Does your card freeze? Or does the complete system freezes and just reboots? What exactly does it do? Really sounds like a power problem. You could do a register dump with AIDA64 (install it, click view, enable bottom toolbar, right click left bottom corner, video registers, ati/amd register dump "with 1 card attached to mobo") and show me that dump. That'll explain some things as well. In your motherboard BIOS, can you set the PCIE generation to be 1 or 2? For my MB, I set them to 1.
For my MSI motherboards i had to set them to GEN1 as well, or they wouldn't recognize all 6 cards. For my Asrock H81 btc boards i did not have to do this, recognizes all 6 of them directly. Greetings! |
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Hi, Thanks much for your answer.
I completely uninstalled everything. Even with DDU.
However, the following still happens: When no monitor plugged in on the nano, then no data in gpu-z/afterburner is shown. Once plugged in, core/mem clock + temp immediately show up in gpu-z/afterburner.
Of course, with monitor the overclocking capabilities of the core from 800 to above 900 fails and the gpu crashes.
What am I missing here?
I am using the AsRock H81 Pro BTC as mainboard. Any wrong BIOS settings? I also put the gpu directly on the MB without riser. Same result.
Btw someone else had the same issue in this thread. But no result was posted.
Let me know if you have some more ideas.
Thank you!
No problem. What driver are you using? i've got several rigs (6 gpu's though), all nano's, and none of them give me that issue. I can easily open up gpu-z/afterburner to check/modify all the needed info. As well as setting core clock to 1000 without any problems. I have the same motherboard, i just use stock settings. To be honest, i have no idea what's going on. I use Crimson 16.1.1 on 95% of my rigs, i have a few that are running with 16.4.1, no issues at all. So the only thing i can think of is the driver. Oh, and on stock rom, you do not have this problem? I assume not. Flash the modded rom to the first bios switch position. That is also something you can try. No worries, you can always flash back (booting up in windows from the other switch position, when booted, switch it, flash it and it's back to the original). If you want the Nano to run 900 MHz instead of 800 MHz "stock", you might have to increase the core voltage by 10 or 20 or even higher mV.
Could be true, but i kind of doubt it. But maybe.. Does that XFX rom have memory voltage mod? Not the memory controller mod. Do you use the offset?
Don't think i was talking about an XFX version I have a "Reference" 390 modded rom, with vddc offset. But no, my XFX Black dissipation does not have MVDDC offset, neither can it be added in the rom. Could you hook me up on IRC or something? So that we can work this out. Shouldn't happen, those errors. Or perhaps you've sorted it out already? Let me know. Greetings |
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Claymores Dual Miner.
Thanks I will check it out. CDM mines ETH and DCR together. I use the ETH only mode, and CDM can push the 390 to near 30MHs. I used qtminer before this because of the Stratum mode, now it's all CDM for my 390 rigs (149.5MHs@5x390@1290w-1350w@-100mV/1028Mhz/1500Mhz). Quite slick this miner, and its has many bells and whistles like failover, monitoring, solo-mode w/o proxy and it's Stratum compliant too. I will be attempting Eliovp's Nano mod for my first Nano rig (I am still trying to get an afternoon off to do this). And combined with CDM, I think we have a winner for the highest hash at lowest possible wattage, amps for ETH mining. Have you tried to mine with 1200 memory frequency. For my XFX 390 cards, there is no difference between 1200 and 1500MHz with 1050 Core. WI'll try it out. My 390 is MSI so I think no issues in underclocking the memory mhz. Thanks - works like a champ! Try 1125, 1200 is a weird number in case of your timings. 1500 or 1375 or 1250 or 1125 is more like it Eliovp.... done -100Mv/1050/1125.... 5x390=151MHs. Do you happen to have a ROM mod for R9-390? Btw, I have my Nanos in, I haven't spent time on the applying your mod yet. My first attempt gave me an error "GPU not found", when I ran the atiflash command with the parameters in your guide. I stopped there and will spend a longer weekend to do more reading. Any ideas? https://bitcointalk.org/index.php?topic=1424132.msg14946664#msg14946664Will comment on that later mate, or perhaps help you out, but gotta go now, already late again for a meeting. I have a rom for a 390(reference "hard to find") and will share another one that's running on my nitro's as soon as possible! Greetings! |
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Claymores Dual Miner.
Thanks I will check it out. CDM mines ETH and DCR together. I use the ETH only mode, and CDM can push the 390 to near 30MHs. I used qtminer before this because of the Stratum mode, now it's all CDM for my 390 rigs (149.5MHs@5x390@1290w-1350w@-100mV/1028Mhz/1500Mhz). Quite slick this miner, and its has many bells and whistles like failover, monitoring, solo-mode w/o proxy and it's Stratum compliant too. I will be attempting Eliovp's Nano mod for my first Nano rig (I am still trying to get an afternoon off to do this). And combined with CDM, I think we have a winner for the highest hash at lowest possible wattage, amps for ETH mining. Have you tried to mine with 1200 memory frequency. For my XFX 390 cards, there is no difference between 1200 and 1500MHz with 1050 Core. WI'll try it out. My 390 is MSI so I think no issues in underclocking the memory mhz. Thanks - works like a champ! Try 1125, 1200 is a weird number in case of your timings. 1500 or 1375 or 1250 or 1125 is more like it |
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Hi, I just tried the -100mv Mem bios on my new XFX Radeon Nano, and strangely I do not get any GPU readings anymore. That includes core clock, mem clock but also temperature. MSI Afterburner also shows completely nothing (see screenshots). Did I miss anything? I'm on Win10 with 15.12 driver.   Any ideas? Additional question: Is it normal that the driver is R9 Fury Series? There's no nano? People should read more carefully If you flash, make sure to completely turn off your system, as in turning off the electricity (this because the memory controller can be reprogrammed). if for some reason, gpu-z does not show the correct info, reinstall every third party app, like AB, Trixx, GPU-Z or whatever. If this still does not solve your problem, you can do another thing, if you open crimson settings, and restore to default settings, reboot, your issue can be resolved. If still not ok, use DDU to remove your drivers, reinstall them and you'll be fine for sure! Good luck! Greetings! |
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Hey guys, just got back from holiday. My apologies for not being able to reply to all messages. Claymores Dual Miner.
Thanks I will check it out. CDM mines ETH and DCR together. I use the ETH only mode, and CDM can push the 390 to near 30MHs. I used qtminer before this because of the Stratum mode, now it's all CDM for my 390 rigs (149.5MHs@5x390@1290w-1350w@-100mV/1028Mhz/1500Mhz). Quite slick this miner, and its has many bells and whistles like failover, monitoring, solo-mode w/o proxy and it's Stratum compliant too. I will be attempting Eliovp's Nano mod for my first Nano rig (I am still trying to get an afternoon off to do this). And combined with CDM, I think we have a winner for the highest hash at lowest possible wattage, amps for ETH mining. Have you tried to mine with 1200 memory frequency. For my XFX 390 cards, there is no difference between 1200 and 1500MHz with 1050 Core. WI'll try it out. My 390 is MSI so I think no issues in underclocking the memory mhz. When mining Eth, you can easily down clock that mem to 1125. Works perfectly And if you can, undervolt AUX (Voltage given to the memory controller), it won't make such a huge impact, but every bit counts Greetings! When you reduce the memory frequency from 1500 to 1200 MHz, it will save 20% of energy consumed by the memory. Mmm, not so sure about that though :p What is true, is that 20% of 1500 = 300, in other words, 1500 - 300 = 1200. So you reduce your memory by 20%, not the energy consumed |
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Hey guys, just got back from holiday. My apologies for not being able to reply to all messages. Claymores Dual Miner.
Thanks I will check it out. CDM mines ETH and DCR together. I use the ETH only mode, and CDM can push the 390 to near 30MHs. I used qtminer before this because of the Stratum mode, now it's all CDM for my 390 rigs (149.5MHs@5x390@1290w-1350w@-100mV/1028Mhz/1500Mhz). Quite slick this miner, and its has many bells and whistles like failover, monitoring, solo-mode w/o proxy and it's Stratum compliant too. I will be attempting Eliovp's Nano mod for my first Nano rig (I am still trying to get an afternoon off to do this). And combined with CDM, I think we have a winner for the highest hash at lowest possible wattage, amps for ETH mining. Have you tried to mine with 1200 memory frequency. For my XFX 390 cards, there is no difference between 1200 and 1500MHz with 1050 Core. WI'll try it out. My 390 is MSI so I think no issues in underclocking the memory mhz. When mining Eth, you can easily down clock that mem to 1125. Works perfectly And if you can, undervolt AUX (Voltage given to the memory controller), it won't make such a huge impact, but every bit counts Greetings! |
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Script kiddies flooding my database..
Kind of dumb of me not setting up captcha..
Will do when i'm back from holiday..
Greetings and sorry!
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