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Topic: Who ordered the AMD Radeon VII? Lets make a list of Miners / Hashrates / Coins - page 10. (Read 12978 times)

member
Activity: 449
Merit: 24
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. Smiley 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.
hero member
Activity: 2702
Merit: 510
Leading Crypto Sports Betting & Casino Platform
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. Smiley 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.
newbie
Activity: 27
Merit: 0
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. Smiley 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!
member
Activity: 72
Merit: 11
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. Smiley 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.
newbie
Activity: 27
Merit: 0
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. 
member
Activity: 340
Merit: 29
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.
member
Activity: 72
Merit: 11
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.

newbie
Activity: 27
Merit: 0
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?
sr. member
Activity: 489
Merit: 253
What are people getting on these with the dual mining eth+vBlake (veriblock)
jr. member
Activity: 279
Merit: 1
I am not having good luck with RadeonVII card. This morning got one but that kept crashing. Had to return it.
member
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its power consumption is still relatively high, and the TDP reaches 300W, which is similar to the RX VEGA 64. but its price is very attractive. i will consider it.

It’s power consumption *can be* (and will most likely be) higher than a 64 - it depends on how you tune - but it is significantly more efficient than a 64 when tuned properly, on a h/w basis.

300w would be pretty inefficient for mining.  OTOH, some gamers/benchers are getting into 500+ - go take a look on oc forums.
jr. member
Activity: 182
Merit: 1
its power consumption is still relatively high, and the TDP reaches 300W, which is similar to the RX VEGA 64. but its price is very attractive. i will consider it.
hero member
Activity: 2954
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Leading Crypto Sports Betting & Casino Platform
I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

What is your junction temperature?

Looks to be around 95C to 101C.
I think the temperature is very hot for mining that can make your place burn, you better be careful and too over when mining.

The card seems to be rated for high junction temps.

Quote:
"Just like on Vega, the reported temperature values are quite high, which might scare some less experienced users. Once Junction Temperature reaches 115°C, the card will start throttling a little bit to keep the temperature below 115°C. At stock, with our card, this doesn't happen during gaming—we saw up to 110°C Junction Temperature."

https://www.techpowerup.com/reviews/AMD/Radeon_VII/33.html

That card was having a high junction temperature 110 or 115 as a throttle limit. I have used it and just try to undervolting my vega and tweak my GPU to reduces the heat. But this one is so hot and i was moving towards another GPU.
member
Activity: 72
Merit: 11
I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

What is your junction temperature?

Looks to be around 95C to 101C.
I think the temperature is very hot for mining that can make your place burn, you better be careful and too over when mining.

The card seems to be rated for high junction temps.

Quote:
"Just like on Vega, the reported temperature values are quite high, which might scare some less experienced users. Once Junction Temperature reaches 115°C, the card will start throttling a little bit to keep the temperature below 115°C. At stock, with our card, this doesn't happen during gaming—we saw up to 110°C Junction Temperature."

https://www.techpowerup.com/reviews/AMD/Radeon_VII/33.html
sr. member
Activity: 1148
Merit: 252
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I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

What is your junction temperature?

Looks to be around 95C to 101C.
I think the temperature is very hot for mining that can make your place burn, you better be careful and too over when mining.
member
Activity: 72
Merit: 11
I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

What is your junction temperature?

Looks to be around 95C to 101C.
jr. member
Activity: 279
Merit: 1
I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.

What is your junction temperature?
hero member
Activity: 2464
Merit: 550
Leading Crypto Sports Betting & Casino Platform
These do put off alot of heat as another person mentioned they need extra cooling even with the three fans on the card.
The temperature can reach levels which are not good to run cards at 24/7 or the only thing they would be good for is this
maybe where you do mining has a relatively cold temperature so you don't need to add air conditioning, but some miners in other parts of the world still have very hot temperatures to do mining so they need very large air conditioners to make room temperature and rig temperature so as not to heat up.
member
Activity: 340
Merit: 29
I was having wildly fluctuating hashrates for a couple of weeks on both my R VII's, until I realized I need to add some external cooling on my open air rig. Outside ambient temps were about 70-90 F (20-30 C), so apparently just ambient air isn't enough to cool them down. I have two cards, Asrock Radeon VII's with Samsung memory. Before cooling it was running at 79-89 MH/s on Ethereum and fan speeds set to auto, running around 75%. With the speed fluctuations I suspect throttling due to heat.

I went ahead and added a box fan. Result is one card running stable at 89.6 MH/s and the other stable at 89.4 MH/s.

MSI Afterburner settings: Core 950 mV, Power limit -10%, Core Clock 1750 MHz, Mem 1100 MHz, Fan Speed auto.


You were most likely throttling due to junction temp exceeding 110c (or so.)

I don't know why everyone is so stuck on the 90 MHs number.  You can get measurably better efficiency (and significantly less heat) at lower h/rs - I'm seeing 82+Mhs for 215w atw (including idle) w/ 1575 cclock, 935 mclock @ ~858mv (this was months ago on original bios and older drivers - maybe even better now.)  90 MHs required over 250w iirc.
legendary
Activity: 2828
Merit: 1497
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These do put off alot of heat as another person mentioned they need extra cooling even with the three fans on the card.
The temperature can reach levels which are not good to run cards at 24/7 or the only thing they would be good for is this
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