Who ordered the AMD Radeon VII? Lets make a list of Miners / Hashrates / Coins

[molivil]

Hey, I'm interested in the GPU and have been planning to build a mining rig.
How many GPUs can be powered using EVGA 1600 watts PSU?
Also, I'm worried about the noise dB, as I've read on some forums it can get loud?

Depends on what GPU you are using, and what coin you intend to mine. As an example, a GTX 1060 can consume up to 120 W. A Radeon VII can consume up to 300 W. For Ethereum, if you tune it properly, you can usually cut 25%+ off the power usage, but you don't want to use that as a basis, you always want to leave an overhead so you can mine other coins as needed. Also, as a rule of thumb you don't want to use your PSU at more than 80% since it's not efficient that way. So a reasonable expectation is that a 1600W power supply will probably provide about 1200W power efficiently. That will be able to power 4x Radeon VII's (1200W/300W), or 10x GTX 1060's (1200W/120W).

If you have miners inside, noise can be a problem. If it's outside, it's usually not that noticeable.


Mining wattages and efficiency calculations for Ethereum can be found here:
https://docs.google.com/spreadsheets/d/1w6qQtpwzlKRPSx3hYIpTrO1d29SwAIhOV4CNGi3Jk6Y/edit?usp=sharing

Let me know if it needs corrections. Thanks.

[pbfarmer]

Hey, I'm interested in the GPU and have been planning to build a mining rig.
How many GPUs can be powered using EVGA 1600 watts PSU?
Also, I'm worried about the noise dB, as I've read on some forums it can get loud?

Depends on what GPU you are using, and what coin you intend to mine. As an example, a GTX 1060 can consume up to 120 W. A Radeon VII can consume up to 300 W. For Ethereum, if you tune it properly, you can usually cut 25%+ off the power usage, but you don't want to use that as a basis, you always want to leave an overhead so you can mine other coins as needed. Also, as a rule of thumb you don't want to use your PSU at more than 80% since it's not efficient that way. So a reasonable expectation is that a 1600W power supply will probably provide about 1200W power efficiently. That will be able to power 4x Radeon VII's (1200W/300W), or 10x GTX 1060's (1200W/120W).

If you have miners inside, noise can be a problem. If it's outside, it's usually not that noticeable.

Higher end PSUs tend to have a reasonably flat efficiency curve up to 95+% load.  Here's a measurement of the P2 for example:



And a curve for the T2:



Sure, you lose a couple percent from the peak around 33% load, but it's certainly not worth handicapping your capacity as a result.  I run my 1600 P2s close to full cap in certain situations w/ 8 vega 64s on them.

Also, as I mentioned elsewhere, VIIs can do well over 300w.  The TDP rating is stock - not really something miners (or most gamers spending $700 on a GPU) care about.  That being said, even 300w is most likely pretty inefficient for mining on almost any algorithm - 200-250w is probably the target area for decent efficiency on a VII.  I run ethash at 215w for 82MH/s. 

I would say you could easily plan 5 VIIs on a 1600w PSU - possibly even 6 if you're good about power management.  Mining hashrates, as well as power use, are not fixed quantities.  You can tune your performance of any algorithm however it suits you.  Just because everyone else runs ETH @ 90MHs for 260w, doesn't mean it's the only, or even best, option.

Finally, in addition to noise considerations (and they are loud, though not quite as bad as blowers,) you should think about heat management as well. 1600w is basically a space heater - one you'll be running 24/7, I assume.

[solominer247]

Depends on what GPU you are using, and what coin you intend to mine. As an example, a GTX 1060 can consume up to 120 W. A Radeon VII can consume up to 300 W. For Ethereum, if you tune it properly, you can usually cut 25%+ off the power usage, but you don't want to use that as a basis, you always want to leave an overhead so you can mine other coins as needed. Also, as a rule of thumb you don't want to use your PSU at more than 80% since it's not efficient that way. So a reasonable expectation is that a 1600W power supply will probably provide about 1200W power efficiently. That will be able to power 4x Radeon VII's (1200W/300W), or 10x GTX 1060's (1200W/120W).

If you have miners inside, noise can be a problem. If it's outside, it's usually not that noticeable.

Hey mate, thanks for your reply.

I've looking at : Sapphire AMD Radeon VII. I've had Sapphire products in the past and work like a charm, hardly encounter issues, plus its a respective brand in my opinion. I would have gone for Asus or Gigabyte but their price difference is around £60 when it would do the same.

When it comes to coin, I will be leaving it with Nicehash as I've used their service ever since I started mining. I know others had issues and will have negative feedback but it's been working without an issue for me. Or do you think with AMD Radeon VII, using Nicehash would be bad option?
 
Right, understand. I'm best to have only 4 x AMD Radeon VII. But as you mentioned I can tweak and reduce the wattage.

At the moment my mining rig is left indoors, in fact in my bedroom and I currently have 4x Asus GTX 1070 OC 8GB, connected to 5 fans that run at 100% . But I have plans to move the mining rig to a different location in the house. Do you think 4x AMD Radeon VII will create a lot of noise? 

Mining wattages and efficiency calculations for Ethereum can be found here:
https://docs.google.com/spreadsheets/d/1w6qQtpwzlKRPSx3hYIpTrO1d29SwAIhOV4CNGi3Jk6Y/edit?usp=sharing

Let me know if it needs corrections. Thanks.

Noted!

Higher end PSUs tend to have a reasonably flat efficiency curve up to 95+% load.  Here's a measurement of the P2 for example:

https://img.purch.com/evga-1600-p2-psu-cross-load/w/600/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9ML0ovNDc3NzAzL29yaWdpbmFsL0NMX2VmZmljaWVuY3kuanBn

And a curve for the T2:

https://tpucdn.com/reviews/EVGA/SuperNOVA_T2_1600/images/efficiency.jpg

Sure, you lose a couple percent from the peak around 33% load, but it's certainly not worth handicapping your capacity as a result.  I run my 1600 P2s close to full cap in certain situations w/ 8 vega 64s on them.

Also, as I mentioned elsewhere, VIIs can do well over 300w.  The TDP rating is stock - not really something miners (or most gamers spending $700 on a GPU) care about.  That being said, even 300w is most likely pretty inefficient for mining on almost any algorithm - 200-250w is probably the target area for decent efficiency on a VII.  I run ethash at 215w for 82MH/s. 

I would say you could easily plan 5 VIIs on a 1600w PSU - possibly even 6 if you're good about power management.  Mining hashrates, as well as power use, are not fixed quantities.  You can tune your performance of any algorithm however it suits you.  Just because everyone else runs ETH @ 90MHs for 260w, doesn't mean it's the only, or even best, option.

Finally, in addition to noise considerations (and they are loud, though not quite as bad as blowers,) you should think about heat management as well. 1600w is basically a space heater - one you'll be running 24/7, I assume.

Hey mate, thanks for your reply.

Nice work on the image it helps a lot.

Yes, I totally agree with you about "everyone else runs ETH @ 90MHs for 260w". It all about finding the sweet spot lols, makes changes, making the tweaks, monitor and then applying everything. I suppose it will take some time to find the best setting, but I was really hoping to fit 6 gpus onto my rig. 

[molivil]

With my electricity rates ($0.11/kWh), I've calculated out that there's not much more profit to be made with any less than what I currently have my GPU set at (89MH/s@245W), but with any higher electricity rates, I can see better efficiencies coming into play.

Hey mate, thanks for your reply.

I've looking at : Sapphire AMD Radeon VII. I've had Sapphire products in the past and work like a charm, hardly encounter issues, plus its a respective brand in my opinion. I would have gone for Asus or Gigabyte but their price difference is around £60 when it would do the same.

When it comes to coin, I will be leaving it with Nicehash as I've used their service ever since I started mining. I know others had issues and will have negative feedback but it's been working without an issue for me. Or do you think with AMD Radeon VII, using Nicehash would be bad option?
 
Right, understand. I'm best to have only 4 x AMD Radeon VII. But as you mentioned I can tweak and reduce the wattage.

At the moment my mining rig is left indoors, in fact in my bedroom and I currently have 4x Asus GTX 1070 OC 8GB, connected to 5 fans that run at 100% . But I have plans to move the mining rig to a different location in the house. Do you think 4x AMD Radeon VII will create a lot of noise? 

Mining wattages and efficiency calculations for Ethereum can be found here:
https://docs.google.com/spreadsheets/d/1w6qQtpwzlKRPSx3hYIpTrO1d29SwAIhOV4CNGi3Jk6Y/edit?usp=sharing

Let me know if it needs corrections. Thanks.

Noted!

Nicehash is okay, if you don't mind pretty high mining fees (5% for payouts less than 0.1BTC to external wallets). The higher fees are partly offset by the fact that their miner always finds the most profitable coin to mine. They had a huge hack two years ago, and they lost lots of bitcoin, and many (including me) lost some of my mining profits. However they've been slowly paying back miners for the lost money. The fact that they've been around for a while, and that they try to pay miners back and do the right thing is why I still trust them. It's an okay way to acquire Bitcoin.

For lesser fees, I use Nanopool for Ethereum mining, and over the years I've had zero problems with them. You can then use an exchange with much lower fees to convert your mined Eth to Bitcoin. I like their clean interface, and you can see one of my miners (2x 1060, 2x R-VII) mining currently there: https://eth.nanopool.org/account/0xa63ffc523e284bfb4a09b46ed2336afe824c57eb

I wouldn't run 4x Radeon VII's in the bedroom unless you have earplugs, or are a very deep sleeper. Also, do you need to cool down your house with air conditioning units? Depending on the climate you live in, AC units can use heaps of electricity trying to cool down mining rigs, and that's why lots of miners choose to run them outside, in the garage or at the patio, for example. Unless you have free electricity, or live in a cold area where you want to warm up your house by mining, I wouldn't run them inside.

[solominer247]

Nicehash is okay, if you don't mind pretty high mining fees (5% for payouts less than 0.1BTC to external wallets). The higher fees are partly offset by the fact that their miner always finds the most profitable coin to mine. They had a huge hack two years ago, and they lost lots of bitcoin, and many (including me) lost some of my mining profits. However they've been slowly paying back miners for the lost money. The fact that they've been around for a while, and that they try to pay miners back and do the right thing is why I still trust them. It's an okay way to acquire Bitcoin.

For lesser fees, I use Nanopool for Ethereum mining, and over the years I've had zero problems with them. You can then use an exchange with much lower fees to convert your mined Eth to Bitcoin. I like their clean interface, and you can see one of my miners (2x 1060, 2x R-VII) mining currently there: https://eth.nanopool.org/account/0xa63ffc523e284bfb4a09b46ed2336afe824c57eb

I wouldn't run 4x Radeon VII's in the bedroom unless you have earplugs, or are a very deep sleeper. Also, do you need to cool down your house with air conditioning units? Depending on the climate you live in, AC units can use heaps of electricity trying to cool down mining rigs, and that's why lots of miners choose to run them outside, in the garage or at the patio, for example. Unless you have free electricity, or live in a cold area where you want to warm up your house by mining, I wouldn't run them inside.

Today, I finally ordered 6 x AMD Radeon VII, I've been planning for quite some time now. Fingers crossed it should be delivered tomorrow or Saturday, also ordered 2 x Asus GTX 1070 OC 8GB.
So now my small rig contains:
6 x Asus GTX 1070 0C 8GB
6 X MSI AMD Radeon VII 16GB

I think having all 6 Radeon VII in 1 rig will be a pain, plus alot of undervolt would be required. I will install 4 GPUs first, check the performance and add 1 GPU at a time if possible.

Yeah, I heard about the Nicehash hack. I was affected not much but still, now their making good progress reimbursed more than 50% already. They're also working on Nicehash v3, I think.

My current rig has 5 x 120mm fans already installed which is running 4 x Asus GTX 1070 0C 8GB. It keeps the rig very cool and working great.
After installing the 2nd rig, if more fans are required I could always purchase : https://www.amazon.co.uk/Oypla-Electrical-Chrome-Standing-Hydroponic/dp/B0182K76UQ/ref=sr_1_4?keywords=gym+fan&qid=1558040716&s=gateway&sr=8-4 , now these suckers are powerful!

[poodle63]

Nicehash is okay, if you don't mind pretty high mining fees (5% for payouts less than 0.1BTC to external wallets). The higher fees are partly offset by the fact that their miner always finds the most profitable coin to mine. They had a huge hack two years ago, and they lost lots of bitcoin, and many (including me) lost some of my mining profits. However they've been slowly paying back miners for the lost money. The fact that they've been around for a while, and that they try to pay miners back and do the right thing is why I still trust them. It's an okay way to acquire Bitcoin.

For lesser fees, I use Nanopool for Ethereum mining, and over the years I've had zero problems with them. You can then use an exchange with much lower fees to convert your mined Eth to Bitcoin. I like their clean interface, and you can see one of my miners (2x 1060, 2x R-VII) mining currently there: https://eth.nanopool.org/account/0xa63ffc523e284bfb4a09b46ed2336afe824c57eb

I wouldn't run 4x Radeon VII's in the bedroom unless you have earplugs, or are a very deep sleeper. Also, do you need to cool down your house with air conditioning units? Depending on the climate you live in, AC units can use heaps of electricity trying to cool down mining rigs, and that's why lots of miners choose to run them outside, in the garage or at the patio, for example. Unless you have free electricity, or live in a cold area where you want to warm up your house by mining, I wouldn't run them inside.

Today, I finally ordered 6 x AMD Radeon VII, I've been planning for quite some time now. Fingers crossed it should be delivered tomorrow or Saturday, also ordered 2 x Asus GTX 1070 OC 8GB.
So now my small rig contains:
6 x Asus GTX 1070 0C 8GB
6 X MSI AMD Radeon VII 16GB

I think having all 6 Radeon VII in 1 rig will be a pain, plus alot of undervolt would be required. I will install 4 GPUs first, check the performance and add 1 GPU at a time if possible.

Yeah, I heard about the Nicehash hack. I was affected not much but still, now their making good progress reimbursed more than 50% already. They're also working on Nicehash v3, I think.

My current rig has 5 x 120mm fans already installed which is running 4 x Asus GTX 1070 0C 8GB. It keeps the rig very cool and working great.
After installing the 2nd rig, if more fans are required I could always purchase : https://www.amazon.co.uk/Oypla-Electrical-Chrome-Standing-Hydroponic/dp/B0182K76UQ/ref=sr_1_4?keywords=gym+fan&qid=1558040716&s=gateway&sr=8-4 , now these suckers are powerful!

What makes you decide to order VII? i have a mining rig (3x 1070) and i wanna add more but i have some choices like 1060, add more 1070 or VII. but after doing some research and i got the fact what the power draw for VII is doubled from how much consumed by 1060 and 1070. Is there a reason for that? VII has a lower core clock too.

[badbart]

Nicehash is okay, if you don't mind pretty high mining fees (5% for payouts less than 0.1BTC to external wallets). The higher fees are partly offset by the fact that their miner always finds the most profitable coin to mine. They had a huge hack two years ago, and they lost lots of bitcoin, and many (including me) lost some of my mining profits. However they've been slowly paying back miners for the lost money. The fact that they've been around for a while, and that they try to pay miners back and do the right thing is why I still trust them. It's an okay way to acquire Bitcoin.

For lesser fees, I use Nanopool for Ethereum mining, and over the years I've had zero problems with them. You can then use an exchange with much lower fees to convert your mined Eth to Bitcoin. I like their clean interface, and you can see one of my miners (2x 1060, 2x R-VII) mining currently there: https://eth.nanopool.org/account/0xa63ffc523e284bfb4a09b46ed2336afe824c57eb

I wouldn't run 4x Radeon VII's in the bedroom unless you have earplugs, or are a very deep sleeper. Also, do you need to cool down your house with air conditioning units? Depending on the climate you live in, AC units can use heaps of electricity trying to cool down mining rigs, and that's why lots of miners choose to run them outside, in the garage or at the patio, for example. Unless you have free electricity, or live in a cold area where you want to warm up your house by mining, I wouldn't run them inside.

Today, I finally ordered 6 x AMD Radeon VII, I've been planning for quite some time now. Fingers crossed it should be delivered tomorrow or Saturday, also ordered 2 x Asus GTX 1070 OC 8GB.
So now my small rig contains:
6 x Asus GTX 1070 0C 8GB
6 X MSI AMD Radeon VII 16GB

I think having all 6 Radeon VII in 1 rig will be a pain, plus alot of undervolt would be required. I will install 4 GPUs first, check the performance and add 1 GPU at a time if possible.

Yeah, I heard about the Nicehash hack. I was affected not much but still, now their making good progress reimbursed more than 50% already. They're also working on Nicehash v3, I think.

My current rig has 5 x 120mm fans already installed which is running 4 x Asus GTX 1070 0C 8GB. It keeps the rig very cool and working great.
After installing the 2nd rig, if more fans are required I could always purchase : https://www.amazon.co.uk/Oypla-Electrical-Chrome-Standing-Hydroponic/dp/B0182K76UQ/ref=sr_1_4?keywords=gym+fan&qid=1558040716&s=gateway&sr=8-4 , now these suckers are powerful!

What makes you decide to order VII? i have a mining rig (3x 1070) and i wanna add more but i have some choices like 1060, add more 1070 or VII. but after doing some research and i got the fact what the power draw for VII is doubled from how much consumed by 1060 and 1070. Is there a reason for that? VII has a lower core clock too.

Double the power draw with 3 times the eth hashing power of a 1070.

[molivil]

Nicehash is okay, if you don't mind pretty high mining fees (5% for payouts less than 0.1BTC to external wallets). The higher fees are partly offset by the fact that their miner always finds the most profitable coin to mine. They had a huge hack two years ago, and they lost lots of bitcoin, and many (including me) lost some of my mining profits. However they've been slowly paying back miners for the lost money. The fact that they've been around for a while, and that they try to pay miners back and do the right thing is why I still trust them. It's an okay way to acquire Bitcoin.

For lesser fees, I use Nanopool for Ethereum mining, and over the years I've had zero problems with them. You can then use an exchange with much lower fees to convert your mined Eth to Bitcoin. I like their clean interface, and you can see one of my miners (2x 1060, 2x R-VII) mining currently there: https://eth.nanopool.org/account/0xa63ffc523e284bfb4a09b46ed2336afe824c57eb

I wouldn't run 4x Radeon VII's in the bedroom unless you have earplugs, or are a very deep sleeper. Also, do you need to cool down your house with air conditioning units? Depending on the climate you live in, AC units can use heaps of electricity trying to cool down mining rigs, and that's why lots of miners choose to run them outside, in the garage or at the patio, for example. Unless you have free electricity, or live in a cold area where you want to warm up your house by mining, I wouldn't run them inside.

Today, I finally ordered 6 x AMD Radeon VII, I've been planning for quite some time now. Fingers crossed it should be delivered tomorrow or Saturday, also ordered 2 x Asus GTX 1070 OC 8GB.
So now my small rig contains:
6 x Asus GTX 1070 0C 8GB
6 X MSI AMD Radeon VII 16GB

I think having all 6 Radeon VII in 1 rig will be a pain, plus alot of undervolt would be required. I will install 4 GPUs first, check the performance and add 1 GPU at a time if possible.

Yeah, I heard about the Nicehash hack. I was affected not much but still, now their making good progress reimbursed more than 50% already. They're also working on Nicehash v3, I think.

My current rig has 5 x 120mm fans already installed which is running 4 x Asus GTX 1070 0C 8GB. It keeps the rig very cool and working great.
After installing the 2nd rig, if more fans are required I could always purchase : https://www.amazon.co.uk/Oypla-Electrical-Chrome-Standing-Hydroponic/dp/B0182K76UQ/ref=sr_1_4?keywords=gym+fan&qid=1558040716&s=gateway&sr=8-4 , now these suckers are powerful!

What makes you decide to order VII? i have a mining rig (3x 1070) and i wanna add more but i have some choices like 1060, add more 1070 or VII. but after doing some research and i got the fact what the power draw for VII is doubled from how much consumed by 1060 and 1070. Is there a reason for that? VII has a lower core clock too.

Double the power draw with 3 times the eth hashing power of a 1070.

It all comes down to efficiency in the coin you want to mine. Especially if you have higher power costs. 1070's are pretty efficient in Ethereum though. Someone ought to do testing and comparison with X16R or CN-R. I can test 1060 and VII (those are all I got). I've already created a efficiency comparison on Ethash, but I could probably cook up a table on the other algos.

[pbfarmer]

Today, I finally ordered 6 x AMD Radeon VII, I've been planning for quite some time now. Fingers crossed it should be delivered tomorrow or Saturday, also ordered 2 x Asus GTX 1070 OC 8GB.
So now my small rig contains:
6 x Asus GTX 1070 0C 8GB
6 X MSI AMD Radeon VII 16GB

I think having all 6 Radeon VII in 1 rig will be a pain, plus alot of undervolt would be required. I will install 4 GPUs first, check the performance and add 1 GPU at a time if possible.

Yeah, I heard about the Nicehash hack. I was affected not much but still, now their making good progress reimbursed more than 50% already. They're also working on Nicehash v3, I think.

My current rig has 5 x 120mm fans already installed which is running 4 x Asus GTX 1070 0C 8GB. It keeps the rig very cool and working great.
After installing the 2nd rig, if more fans are required I could always purchase : https://www.amazon.co.uk/Oypla-Electrical-Chrome-Standing-Hydroponic/dp/B0182K76UQ/ref=sr_1_4?keywords=gym+fan&qid=1558040716&s=gateway&sr=8-4 , now these suckers are powerful!

Remember to consider your fans power draw when calculating headroom on the PSU.  I think 120mm fans run around .33a on avg - so maybe about 4w each?  If you’re really pushing the limits of the PSU, your best bet is probably an open air rig w/ good spacing, and an external cooling solution if possible.  Here’s my setup for example - the 8x64 rig is on the left.  The spacing alone is generally enough to keep these reasonably cool (40-45c) even at 70-80f/21-27c ambient.  The cabinet is more for noise suppression and dust control (this is my garage/workshop too!) but the airflow helps on those summer days when temps get up significantly higher.  Many people just point a box fan at their rigs. (btw, the fans on the one rig aren’t necessary, but I didn’t bother removing them as I had the power headroom):

[mak013]

Remember to consider your fans power draw when calculating headroom on the PSU.  I think 120mm fans run around .33a on avg - so maybe about 4w each?  If you’re really pushing the limits of the PSU, your best bet is probably an open air rig w/ good spacing, and an external cooling solution if possible.  Here’s my setup for example - the 8x64 rig is on the left.  The spacing alone is generally enough to keep these reasonably cool (40-45c) even at 70-80f/21-27c ambient.  The cabinet is more for noise suppression and dust control (this is my garage/workshop too!) but the airflow helps on those summer days when temps get up significantly higher.  Many people just point a box fan at their rigs. (btw, the fans on the one rig aren’t necessary, but I didn’t bother removing them as I had the power headroom):

There are different solutions for each case. For example in my garage im using 2 pipes - one for remove hot air and one as inflow. Also, i often see rigs in boxes with 120mm fans both side.
So your solution is nice but for your conditions.

[pbfarmer]

Remember to consider your fans power draw when calculating headroom on the PSU.  I think 120mm fans run around .33a on avg - so maybe about 4w each?  If you’re really pushing the limits of the PSU, your best bet is probably an open air rig w/ good spacing, and an external cooling solution if possible.  Here’s my setup for example - the 8x64 rig is on the left.  The spacing alone is generally enough to keep these reasonably cool (40-45c) even at 70-80f/21-27c ambient.  The cabinet is more for noise suppression and dust control (this is my garage/workshop too!) but the airflow helps on those summer days when temps get up significantly higher.  Many people just point a box fan at their rigs. (btw, the fans on the one rig aren’t necessary, but I didn’t bother removing them as I had the power headroom):

There are different solutions for each case. For example in my garage im using 2 pipes - one for remove hot air and one as inflow. Also, i often see rigs in boxes with 120mm fans both side.
So your solution is nice but for your conditions.

The point was simply to consider moving cooling solution power load off a nearly maxed PSU (and that sufficient spacing can make a huge difference.)  I offered my setup as an example, not the one-and-only design.

[rednoW]

Get Anyone managed to run this beast lower than 850mv gpu voltage? It has 850mv mvddi so I think it getting me from going down the voltage. Now I have 1540/940@850mv with my new Powercolor Radeon VII (Samsung mem) and 81mhs eth. Have no from the wall measurement but I think it is around 200watt (150watt gpu asic power according to hwinfo)

[pbfarmer]

Get Anyone managed to run this beast lower than 850mv gpu voltage? It has 850mv mvddi so I think it getting me from going down the voltage. Now I have 1540/940@850mv with my new Powercolor Radeon VII (Samsung mem) and 81mhs eth. Have no from the wall measurement but I think it is around 200watt (150watt gpu asic power according to hwinfo)

I'm seeing 82+Mhs for 215w atw (including idle) w/ 1575 cclock, 935 mclock @ ~858mv.  On Vega 56/64, I think every incremental voltage adjustment (6.25mv) resulted in ~ +/- 3w, so you’re prob at ~210w+ including idle.

Iirc, I was running sub 850 while tuning, but crashing too frequently, so settled at 858.  That was a while ago tho, so could be mistaken.

[solominer247]

Hey, guy's I managed to install my 1st AMD Radeon VII today but there is issue.

I have EVGA SuperNOVA 1600 G2. The connectors on the GPU require 2 x 8-pin PCIe power connectors.
With the PSU, only 1 x ; 2 x 8-pin PCIe power connectors were provided.

How on earth do I connect the rest of GPUs? Do I need to buy adapters now?

Someone, please share some light

[joseph32]

That PSU as new has 5x single PCIe and 4 double PCIe cables.

[Marvell2]

Get Anyone managed to run this beast lower than 850mv gpu voltage? It has 850mv mvddi so I think it getting me from going down the voltage. Now I have 1540/940@850mv with my new Powercolor Radeon VII (Samsung mem) and 81mhs eth. Have no from the wall measurement but I think it is around 200watt (150watt gpu asic power according to hwinfo)

I'm seeing 82+Mhs for 215w atw (including idle) w/ 1575 cclock, 935 mclock @ ~858mv.  On Vega 56/64, I think every incremental voltage adjustment (6.25mv) resulted in ~ +/- 3w, so you’re prob at ~210w+ including idle.

Iirc, I was running sub 850 while tuning, but crashing too frequently, so settled at 858.  That was a while ago tho, so could be mistaken.

Maybe use the strap tool then you can get better hash per watt at 100 MHz and say 180 watt Vega 7 would be
Interesting to me.  220 watts for 85 MHz is poor compared to 470 at 29.8 MHz at 90 watts and $80 per card

[pbfarmer]

Get Anyone managed to run this beast lower than 850mv gpu voltage? It has 850mv mvddi so I think it getting me from going down the voltage. Now I have 1540/940@850mv with my new Powercolor Radeon VII (Samsung mem) and 81mhs eth. Have no from the wall measurement but I think it is around 200watt (150watt gpu asic power according to hwinfo)

I'm seeing 82+Mhs for 215w atw (including idle) w/ 1575 cclock, 935 mclock @ ~858mv.  On Vega 56/64, I think every incremental voltage adjustment (6.25mv) resulted in ~ +/- 3w, so you’re prob at ~210w+ including idle.

Iirc, I was running sub 850 while tuning, but crashing too frequently, so settled at 858.  That was a while ago tho, so could be mistaken.

Maybe use the strap tool then you can get better hash per watt at 100 MHz and say 180 watt Vega 7 would be
Interesting to me.

It's very possible you can get higher h/r by updating timings, but you certainly can't drop power use in doing so.  Besides the fact the mem package itself will use more power, core clock is already required to be reasonably high to take advantage of all the mem bandwidth.  Increasing mem performance will only require the same or higher core clock to take advantage.

220 watts for 85 MHz is poor compared to 470 at 29.8 MHz at 90 watts and $80 per card

Depends on your timeline i guess...  The standard depreciation window for computer hardware is generally 3-5 years.  Even at the low end of that range, using todays revenue rate (which obviously isn't great,) the VII is the better buy - at least at my power cost (USD 0.124/kwh).  If prices continue to go up - the comparison only tilts more in favor of the VII.  OTOH, if you expect the market to collapse (or just want to hedge) then I suppose the 470 would be the better buy - but maybe there's a better investment for your hard-earned money than mining in that scenario anyway.

Btw - I assume you're talking about buying 470s on the second-hand market...  Personally, based on some of the stuff I've seen in these forums/chatrooms, I wouldn't trust used mining equipment further than I could throw it (nor would I buy anything less than 8gb - meaning even higher cost.)

[rednoW]

My experience with Radeon VII is that it is highly compute bounded. It has so much free mem bandwidth that neither timings nor memory clock matters

[solominer247]

That PSU as new has 5x single PCIe and 4 double PCIe cables.

Hey, yes the 4 double PCIe cables work fine and can power 2 GPUs.
Issue is with the 5x single PCie, do I need to purchase an adapter for those now?

Something like this : https://www.amazon.co.uk/Startech-Express-Power-Adapter-Cable/dp/B001TK3TJY or https://www.amazon.co.uk/dp/B07GJ6GB2B/ref=pe_3187911_185740111_TE_item

Nicehash keeps on crashing. I've used MSI Afterburner settings as follows :
Core 950 mV, Power limit -10%, Core Clock 1500 MHz, Mem 900 MHz, Fan Speed auto.

Miner runs for less than 5 minutes and stops few seconds later restarts...

What can should I do?

Remember to consider your fans power draw when calculating headroom on the PSU.  I think 120mm fans run around .33a on avg - so maybe about 4w each?  If you’re really pushing the limits of the PSU, your best bet is probably an open air rig w/ good spacing, and an external cooling solution if possible.  Here’s my setup for example - the 8x64 rig is on the left.  The spacing alone is generally enough to keep these reasonably cool (40-45c) even at 70-80f/21-27c ambient.  The cabinet is more for noise suppression and dust control (this is my garage/workshop too!) but the airflow helps on those summer days when temps get up significantly higher.  Many people just point a box fan at their rigs. (btw, the fans on the one rig aren’t necessary, but I didn’t bother removing them as I had the power headroom):

https://i.imgur.com/ez8jC9um.jpg

Hey, yes thanks for the heads up.
Both of my rigs are open air.

1st frame : Veddha V3C 6 GPU Mining Rig Aluminum Alloy Stackable Case Open Air Frame Rack (6x Asus GTX 1070 OC 8GB) with 120mm fans x5
2nd frame : https://www.ebay.co.uk/itm/6-7-GPU-crypto-mining-rig-frame-aluminum-case-Crypto-Monster/222333360848?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649 (Radeon VII) with 140mm fans x5

Niiice neat setup. Looks like it took you some time to plan everything out?

[dragonmike]

That PSU as new has 5x single PCIe and 4 double PCIe cables.

Hey, yes the 4 double PCIe cables work fine and can power 2 GPUs.
Issue is with the 5x single PCie, do I need to purchase an adapter for those now?

Something like this : https://www.amazon.co.uk/Startech-Express-Power-Adapter-Cable/dp/B001TK3TJY or https://www.amazon.co.uk/dp/B07GJ6GB2B/ref=pe_3187911_185740111_TE_item

Nicehash keeps on crashing. I've used MSI Afterburner settings as follows :
Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

Miner runs for less than 5 minutes and stops few seconds later restarts...

What can should I do?

Wouldn't four double PCIe cables mean you can connect four GPUs? Then use four of the remaining single ones for GPU 5 and 6?