Ethereum mining still profitable?

[bobben2]

Yeah, I noticed.
It is drawing exactly the same power as my new R9 380X  (150W) and the hash is the same - 20MH/s.
Core/Mem freq are +200 now to 1402/3601.
Maybe there is a coolbit option to enable under/overvolting?

Speaking of which - I am not able to find a way to undervolt my 380X card in Linux...
Gone are the days when you could mod the BIOS with tools like VBE...

You are right, there is some false information floating around on these forums. 20-22MH correctly tuned takes exactly the same wattage on both platforms. Pump up the mem if you want to see where strix really goes, 4000MHz minimum, +20W.

It takes some kind of voodoo to make gpu tuning work in linux imo but when that happens there is a nice reward.

Where I live you can find 390's openbox at ~260€. They overclock & undervolt (well I only have two) really well.

Hi antantti
I guess you are on Windows since you can undervolt your 390s?   If you are in Linux then could you  please share with me how
to do it?

[antantti]

Yeah, I noticed.
It is drawing exactly the same power as my new R9 380X  (150W) and the hash is the same - 20MH/s.
Core/Mem freq are +200 now to 1402/3601.
Maybe there is a coolbit option to enable under/overvolting?

Speaking of which - I am not able to find a way to undervolt my 380X card in Linux...
Gone are the days when you could mod the BIOS with tools like VBE...

You are right, there is some false information floating around on these forums. 20-22MH correctly tuned takes exactly the same wattage on both platforms. Pump up the mem if you want to see where strix really goes, 4000MHz minimum, +20W.

It takes some kind of voodoo to make gpu tuning work in linux imo but when that happens there is a nice reward.

Where I live you can find 390's openbox at ~260€. They overclock & undervolt (well I only have two) really well.

Hi antantti
I guess you are on Windows since you can undervolt your 390s?   If you are in Linux then could you  please share with me how
to do it?

Yep, right now my mining rigs are all windows. Last time I needed to undervolt amd in linux I had to flash bios.

[zalucia]

Yeah, I noticed.
It is drawing exactly the same power as my new R9 380X  (150W) and the hash is the same - 20MH/s.
Core/Mem freq are +200 now to 1402/3601.
Maybe there is a coolbit option to enable under/overvolting?

Speaking of which - I am not able to find a way to undervolt my 380X card in Linux...
Gone are the days when you could mod the BIOS with tools like VBE...

You are right, there is some false information floating around on these forums. 20-22MH correctly tuned takes exactly the same wattage on both platforms. Pump up the mem if you want to see where strix really goes, 4000MHz minimum, +20W.

It takes some kind of voodoo to make gpu tuning work in linux imo but when that happens there is a nice reward.

Where I live you can find 390's openbox at ~260€. They overclock & undervolt (well I only have two) really well.

Hi antantti
I guess you are on Windows since you can undervolt your 390s?   If you are in Linux then could you  please share with me how
to do it?

Yep, right now my mining rigs are all windows. Last time I needed to undervolt amd in linux I had to flash bios.

The main reason I do not use Linux is that it does not have many support software. I use MSI afterburner a lot to control cards.

[Fademigo]

Yeah, I noticed.
It is drawing exactly the same power as my new R9 380X  (150W) and the hash is the same - 20MH/s.
Core/Mem freq are +200 now to 1402/3601.
Maybe there is a coolbit option to enable under/overvolting?

Speaking of which - I am not able to find a way to undervolt my 380X card in Linux...
Gone are the days when you could mod the BIOS with tools like VBE...

You are right, there is some false information floating around on these forums. 20-22MH correctly tuned takes exactly the same wattage on both platforms. Pump up the mem if you want to see where strix really goes, 4000MHz minimum, +20W.

It takes some kind of voodoo to make gpu tuning work in linux imo but when that happens there is a nice reward.

Where I live you can find 390's openbox at ~260€. They overclock & undervolt (well I only have two) really well.

Hi antantti
I guess you are on Windows since you can undervolt your 390s?   If you are in Linux then could you  please share with me how
to do it?

Yep, right now my mining rigs are all windows. Last time I needed to undervolt amd in linux I had to flash bios.

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

[RustyNoman]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

[mickiya]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

What is the temperature? When you use -100mV, does it work at 1125 MHz? Do you notice the change if you change the memory frequency from 1500 to 1250 or 1000MHz?

[Kalder]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

How do you find the memory controller load? In which software?

In GPUZ, what is the power in and power out?

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

What is the temperature? When you use -100mV, does it work at 1125 MHz? Do you notice the change if you change the memory frequency from 1500 to 1250 or 1000MHz?

Temperatures 65 and 63C, they are mining -100mV/1125 as we speak. Lowering mem speed rises memory controller load, at 1200MHz load is 100%. Lower more and hash starts declining. Overclocking mem to 1600MHz does nothing but drops MCL closer to 70%.

Hashrate has stabilized to 61MH.

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

How do you find the memory controller load? In which software?

In GPUZ, what is the power in and power out?

GPUZ shows it with 390's. Average in/out 136/107W.

[mikewillda]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

What is the temperature? When you use -100mV, does it work at 1125 MHz? Do you notice the change if you change the memory frequency from 1500 to 1250 or 1000MHz?

Temperatures 65 and 63C, they are mining -100mV/1125 as we speak. Lowering mem speed rises memory controller load, at 1200MHz load is 100%. Lower more and hash starts declining. Overclocking mem to 1600MHz does nothing but drops MCL closer to 70%.

Hashrate has stabilized to 61MH.

When you lower the memory speed from 1500 to 1200MHz, does it affect the power consumption?

Where do you see the memory controller load?

[Narosya]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

You said the limiting factor is the Core frequency. Does it mean if we use the 390x, we can achieve better hash with the same or lower core frequency?

[Fademigo]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

The Power in is 136W, 2x = 272W, 580-272 = 310W, the idle = 100w, so there is 210W difference. Are they from the fans or you have a very inefficient power supply?

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

What is the temperature? When you use -100mV, does it work at 1125 MHz? Do you notice the change if you change the memory frequency from 1500 to 1250 or 1000MHz?

Temperatures 65 and 63C, they are mining -100mV/1125 as we speak. Lowering mem speed rises memory controller load, at 1200MHz load is 100%. Lower more and hash starts declining. Overclocking mem to 1600MHz does nothing but drops MCL closer to 70%.

Hashrate has stabilized to 61MH.

When you lower the memory speed from 1500 to 1200MHz, does it affect the power consumption?

Where do you see the memory controller load?

No it doesn't, well maybe 0-5W.

GPUZ shows it on sensors but only with 390. On 7970 or 290 it isn't listed.

[Fademigo]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

What is the temperature? When you use -100mV, does it work at 1125 MHz? Do you notice the change if you change the memory frequency from 1500 to 1250 or 1000MHz?

Temperatures 65 and 63C, they are mining -100mV/1125 as we speak. Lowering mem speed rises memory controller load, at 1200MHz load is 100%. Lower more and hash starts declining. Overclocking mem to 1600MHz does nothing but drops MCL closer to 70%.

Hashrate has stabilized to 61MH.

When you lower the memory speed from 1500 to 1200MHz, does it affect the power consumption?

Where do you see the memory controller load?

No it doesn't, well maybe 0-5W.

GPUZ shows it on sensors but only with 390. On 7970 or 290 it isn't listed.

Did you see no power consumption change with a power meter from the wall or just the power in in the GPUZ?

[coinyard]

Did you see the effect of Aux voltage on the power consumption? What is your Aux voltage? Did you change it to -50mV?

[antantti]

You said the limiting factor is the Core frequency. Does it mean if we use the 390x, we can achieve better hash with the same or lower core frequency?

Higher core means more hash. You can underclock mem to some point without loosing performance, 390x might be different but I don't have one to test.

[antantti]

Do you use Windows MSI Afterburner to undervolate the 390? What is the undervolate level? What is the maximum you can do? Is that over -100 mV?

Yes, afterburner. Maximum is -100mV on both cards.

How much is your power consumption for the XFX 390 cards? What is your clock frequency and the power consumption read from the GPUZ?

I did a test, took one old s775 mobo with E8400 + 2 x 2GB DDR2, slammed in two 390's (8GB each), laptop hdd. PSU is not rated corsair CX750M, voltage 228V. Windows 7 x64. Asus has hynix memory and xfx elpida.

Clocks 1125/1500, limiting factor is core. Memory controller load is max 80%.

From the wall:

idle ~100W
mining 680W
mining -100mV 580W

Hashrate 30MH+ 30MH- around 30MH/card. Block  .

The Power in is 136W, 2x = 272W, 580-272 = 310W, the idle = 100w, so there is 210W difference. Are they from the fans or you have a very inefficient power supply?

I don't trust software when calculating power consumption, they always show too low numbers, both nvidia&amd. Took another card out and power consumption went down 280W.

At those loads cx750m efficiency is ~86%.

-edit- Did some cleaning. Idle 90W, mining 1125/1200, core & aux -100mV, 525W from the wall.

[bitcoinpete]

Just hours away from Homestead now