Hashrate RX 470

[fr4nkthetank]

Yeah I read about that...for me the only solution is hope the power doesnt go out   What I did is each card has its own profile saved, so if it reboots, just re-apply all the profiles.  But yeah nothing is ever easy...

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[brizio71]

I have 3 XFX RX470 4GB Black, I have try to use Trixx to change the Vcore (-75mv) and GPU frequency (7300),
it seems that the new value has been set, but using GPU-Z I see that this value change correctly but get back after 1 second, do u know why ?

[Banksuckmyballs]

Hi all .
I'm new to mining but have learnt fast from reading through all these forums so thanks all for the great comments shared.
There are so many choices to be made and I guess finding the best solution is what it is all about.
I purchased 3 x Sapphire RX470 4GB OC card (Hynix) for $200 each.
Struggled to set them up in the beginning but they are now running stable.

Downloaded claymore's miner. Didn't change or enter any settings, just add an ether pool and a Sia pool with wallet address.
Cards apprear to be overclocked already at 1750.
Current speed on dual mining is 20.5Mh per card on Eth and 310Mh per card on Sia.
If I mine only Eth then 22.2Mh per card.
Power draw on Powertech GPUZ fluctuates between 85w to 95w per card.
Have not tested at wall yet.
Tested now with meter at the wall and power draw is a whopping 570w for complete setup. Ouch!!

It seems there are ways to mess around with the bios and get better speeds but is it really worth it ?
If I could get the Mh rate up at what extra cost of electricity etc.. taking into account potentially bricking a card and losing warranties etc..
Another thing to take into account is the amount of downtime while messing around with these settings.

Has any one got an easy to follow guide or a modded bios for this particular card and what would your advice be on overclocking it considering it is an already overclocked card.
Sapphire RX470 4GB OC card (Hynix)

Another question is whether it is better to dual mine Eth and Sia or just only mine Eth considering the difference in speeds above ?

Thanks in advance  

[fr4nkthetank]

for the xfx cards, I dont know, I havent tried with those.  try setting -5mv to start and see if that sticks.  For the other question, yes it is worth it, but if you've never done it before I highly suggest only doing it on a card that has a dual bios switch (like the sapphire nitro).  there are many guides out there, in my previous comments I put a simple step solution to get it working.  but bricking cards is real, hence the dual bios switch.  and yeah its better to dual mine, but it uses much more electricity.

[Longsnowsm]

Getting 25.5 on 470nitro4g and 28.2 on 470nitro8g.  Just changed the timings, thats it.  Pretty happy !  Now to tweak the power usage...not today that shit takes time.
Going to get 2 msi (one 4g and one 8g) in the mail soon, going to check that out also.  So far though, I think just getting the 4g is a better choice since its quite a bit cheaper.

IF WINDOWS DOESNT DETECT YOUR CARDS -
1-normal mode - flash your cards
2-boot safe mode, replace ati sys file with THE PROPER MODIFIED ONE FOR THE DRIVERS YOU ARE RUNNING (forget where i downloaded that lol, check ethereum forums)
3-device manager - disable all graphics cards - then sign the modified ati sys file with the tool
4-boot normal mode

What timings did you use?  I am working up the nerve to flash my 8gb Nitro's and your post has me thinking about this pretty hard! LOL 

[Banksuckmyballs]

for the xfx cards, I dont know, I havent tried with those.  try setting -5mv to start and see if that sticks.  For the other question, yes it is worth it, but if you've never done it before I highly suggest only doing it on a card that has a dual bios switch (like the sapphire nitro).  there are many guides out there, in my previous comments I put a simple step solution to get it working.  but bricking cards is real, hence the dual bios switch.  and yeah its better to dual mine, but it uses much more electricity.

Thanks Fr4nkthetank...  I can confirm that dual mining does not use any more electricity.  Tested with a meter at the wall and both readings are the same at 570w. So I have decided to mine both Ethereum and Sia as I have worked it out that Sia will pay for roughly 60% of the electricity bill.  I believe my cards do have dual Bios as they are the Nitro version however before I do that I would like to know if anyone has settings for this card that work.  I'd prefer not to experiment and guess.  Thanks again.

[Trasamania]

for the xfx cards, I dont know, I havent tried with those.  try setting -5mv to start and see if that sticks.  For the other question, yes it is worth it, but if you've never done it before I highly suggest only doing it on a card that has a dual bios switch (like the sapphire nitro).  there are many guides out there, in my previous comments I put a simple step solution to get it working.  but bricking cards is real, hence the dual bios switch.  and yeah its better to dual mine, but it uses much more electricity.

Thanks Fr4nkthetank...  I can confirm that dual mining does not use any more electricity.  Tested with a meter at the wall and both readings are the same at 570w. So I have decided to mine both Ethereum and Sia as I have worked it out that Sia will pay for roughly 60% of the electricity bill.  I believe my cards do have dual Bios as they are the Nitro version however before I do that I would like to know if anyone has settings for this card that work.  I'd prefer not to experiment and guess.  Thanks again.

It is great to hear. I have some AMD R9 390. When I do  the dual mining, it uses a lot more electricity than solo.

[fr4nkthetank]

dual mining does use more electricity and generates more heat.  your eth should be actually a bit higher with dual mining, due to reasons I wont go into detail, but in claymore's thread it is explained somewhere.  hmm the timings, well I just replaced the higher mhz timings with the lower one, so if it was 555xxxxxx and 777xxxxx, i put 555xxxx in 777xxxx place.  if you have a bios switch and mess it up its not a problem, if you dont, i am not responsible

[Banksuckmyballs]

Yeah thanks. I flashed the cards with new timings and copied over the .sys file and used wattman to make adjustments. I can confirm 3 days mining with Sapphire  RX470 OC 4GB at 25.5Mhs each. Total draw at the wall for whole setup with 3 of these cards is 470w with monitor off. 500w with monitor on :-) Best settings is core 1050/820 and GPU 1850/850. This is dual mining ETH and SIA.

[uncaer9]

if anyone has tried this method ? modding Rx 470 4gb and stable at 28mhs at dualmining.
boysie mod his rom look at this pict :

link : https://forum.ethereum.org/discussion/comment/58382/

[gooduser173]

I was thinking about building a 470 rig but i am not that impressed by the hashrate mining ETH.
 

no, it's hashrate is not too impressive 20-25mgh, check my broadcasting:

My small rig: 2 GPUs: AMD R9 390 and new RX470 give 50mgh on average: https://www.youtube.com/watch?v=cXJxZ6V3gI4&list=PLEZgknqdd1nB9GJRh5JaNZjxP4hIetVfo&index=5

Hope it helps and interesting

[adaseb]

For everybody with the MSI 470 4GB, the best I can do is 28.5MH/s using the 2000Mhz strap. Can't go any higher.

[Longsnowsm]

For everybody with the MSI 470 4GB, the best I can do is 28.5MH/s using the 2000Mhz strap. Can't go any higher.

How much power is it pulling at the card and at the wall?  That is a pretty good number from the 470.  What ram manufacturer are they using on that card? 

[adaseb]

For everybody with the MSI 470 4GB, the best I can do is 28.5MH/s using the 2000Mhz strap. Can't go any higher.

How much power is it pulling at the card and at the wall?  That is a pretty good number from the 470.  What ram manufacturer are they using on that card? 

Hynix Ram

Uses about 150Watts

[adaseb]

Here are some discoveries regarding the PCIe slot power draw. When using the 2000Mhz strap at 950mV. The slot uses about 55 Watts whether you are ETH solo, ETH+SIA dual mining, or even Undervolted Engine Core. The slot ALWAYS uses the same amount of power. Only the power draw from the 8 Pin connector changes. I think the memory is powered by the slot and indepedant of anything else. So don't connect these to a SATA connector or use more than 1 connected to a molex connector.

[fr4nkthetank]

Here are some discoveries regarding the PCIe slot power draw. When using the 2000Mhz strap at 950mV. The slot uses about 55 Watts whether you are ETH solo, ETH+SIA dual mining, or even Undervolted Engine Core. The slot ALWAYS uses the same amount of power. Only the power draw from the 8 Pin connector changes. I think the memory is powered by the slot and indepedant of anything else. So don't connect these to a SATA connector or use more than 1 connected to a molex connector.

Interesting.  I have one card on a sata to molex connector (a better one than those that comes with usb risers).  I was skeptical and monitored it for heat, but its pretty cool.  The only other sata to molex I have is on a 390, and that one gets relatively warm.  So far so good but I dont push those cards and they are very undervolted.  SATA is rated for 1.5amps per connector I think and 4.5amps per wire ?  Wondering why my stuff hasn't exploded yet.

I' guessing it would be better to chain the molex cable - a molex connector is over 100w, maybe up to 13amps.  Now i'm guessing I could put 2 470s on the same molex wire to the psu, and that would be better than using a molex to sata adaptor ?  so one cable:           470(molex)----470(molex)--------empty(molex)------PSU

[mewhoyou]

if anyone has tried this method ? modding Rx 470 4gb and stable at 28mhs at dualmining.
boysie mod his rom look at this pict :

link : https://forum.ethereum.org/discussion/comment/58382/

I notice that the speed is at 1945mhz ... where i am stuck with the stock speed.. anyway to release it?

[Eugenar]

Here are some discoveries regarding the PCIe slot power draw. When using the 2000Mhz strap at 950mV. The slot uses about 55 Watts whether you are ETH solo, ETH+SIA dual mining, or even Undervolted Engine Core. The slot ALWAYS uses the same amount of power. Only the power draw from the 8 Pin connector changes. I think the memory is powered by the slot and indepedant of anything else. So don't connect these to a SATA connector or use more than 1 connected to a molex connector.

Interesting.  I have one card on a sata to molex connector (a better one than those that comes with usb risers).  I was skeptical and monitored it for heat, but its pretty cool.  The only other sata to molex I have is on a 390, and that one gets relatively warm.  So far so good but I dont push those cards and they are very undervolted.  SATA is rated for 1.5amps per connector I think and 4.5amps per wire ?  Wondering why my stuff hasn't exploded yet.

I' guessing it would be better to chain the molex cable - a molex connector is over 100w, maybe up to 13amps.  Now i'm guessing I could put 2 470s on the same molex wire to the psu, and that would be better than using a molex to sata adaptor ?  so one cable:           470(molex)----470(molex)--------empty(molex)------PSU

I use the USB riser for the 390, it is not hot. Maybe that is because I use the undervoltage, the total power draw on the card is only 160W on the wall.

[fr4nkthetank]

ah yes forgot to mention I am dual mining

[DevonMiner]

Got a 4 card RX470 Sapphire Nitro rig built this week:

Asrock Anniversary Z97 Mobo with 8gb RAM, 120gb SSD, 1000W Corsair HX1000 PSU.
x4 RX470 Sapphire Nitro 8gb GPUs on USB risers.
Windows 7.
AMD driver version 16.300.0.0
Claymore’s miner, mining ETH only.

All running stock speeds without any over clocking at 98Mh/s (24.5Mh/s per card).

Mobo only (no monitor allowed for) - using 80 watts.
Add 3 cards and it sucks in 600W … and a fourth card and it’s up to just over 800W.

The power draw looks too high to me, thought the cards should be about 150W each.

  Any ideas to reduce the power usage on this would be welcome …