R9 280X - 15Mh/s | Bitcointalksearch.org

NanoPipe

newbie

Activity: 31

Merit: 0

Quote from: balazarek on December 19, 2016, 10:14:20 AM

Quote from: NanoPipe on December 19, 2016, 08:40:52 AM

Quote from: balazarek on December 19, 2016, 08:23:23 AM

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

I have R9 280x. How much can I undervolt ?

You can run at 950 mV and 850 MHz. It depends on the quality of the card. That is more or less ballpark figure.

850 MHz with GPU Clock or Memory Clock ? I have 1070/1600MHz default values.

850MHz will be with core clock. The memory clock has to be 1250 MHz to have proper speed with Claymore miner.

balazarek

newbie

Activity: 19

Merit: 0

Quote from: NanoPipe on December 19, 2016, 08:40:52 AM

Quote from: balazarek on December 19, 2016, 08:23:23 AM

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

I have R9 280x. How much can I undervolt ?

You can run at 950 mV and 850 MHz. It depends on the quality of the card. That is more or less ballpark figure.

850 MHz with GPU Clock or Memory Clock ? I have 1070/1600MHz default values.

NanoPipe

newbie

Activity: 31

Merit: 0

Quote from: balazarek on December 19, 2016, 08:23:23 AM

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

I have R9 280x. How much can I undervolt ?

You can run at 950 mV and 850 MHz. It depends on the quality of the card. That is more or less ballpark figure.

balazarek

newbie

Activity: 19

Merit: 0

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

I have R9 280x. How much can I undervolt ?

Bostast

newbie

Activity: 10

Merit: 0

Quote from: malekbaba on October 20, 2016, 04:22:23 PM

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

Please share any link to teach me how to undervolt a gpu?

You can use MSI afterburner to undervolt.

Raja_MBZ

legendary

Activity: 1862

Merit: 1505

Quote from: malekbaba on October 20, 2016, 04:22:23 PM

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

Please share any link to teach me how to undervolt a gpu?

If you're using Claymore GPU miner, then you can even use it's own under-volt command. Check out the Read-Me file of the miner in this case. Simply edit the command in the start file of the miner and you'll be good to go.

What're the values of voltage which GPU-Z is currently providing to you by the way? You can first try the similar value in the under-clocking, then lower it down and test continuously till you feel that something is going wrong with the hash-rate or GPU driver.

malekbaba

legendary

Activity: 1526

Merit: 1026

SellDefi.com | Earn by selling files

Quote from: YIz on October 20, 2016, 01:45:10 PM

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

Please share any link to teach me how to undervolt a gpu?

YIz

hero member

Activity: 686

Merit: 502

Quote from: malekbaba on October 20, 2016, 01:41:53 PM

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

Undervolting is totally safe and it even brings down the heat and power usage. I am getting 15Mh from a 280X, I think you can expect anywhere near that since it's the same chip.

malekbaba

legendary

Activity: 1526

Merit: 1026

SellDefi.com | Earn by selling files

Quote from: chup on October 20, 2016, 01:27:37 PM

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

How to undervolt and is it safe for my gpu? What should i expect from a single and 7950 gpu in eth mining now?

chup

sr. member

Activity: 736

Merit: 262

Me, Myself & I

Quote from: malekbaba on October 20, 2016, 01:13:42 PM

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

The one that gives you undervolting capability with Afterburner or Trix. 15.7.1 works for me.

malekbaba

legendary

Activity: 1526

Merit: 1026

SellDefi.com | Earn by selling files

What is the best driver version to mine etc or eth in AMD 7950? I am asking the question in different thread but no one replied.

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: chup on October 15, 2016, 04:46:07 AM

Quote from: adaseb on October 15, 2016, 03:54:14 AM

So they use about 175Watts each correct?

Huh, never disconnected one to do precise measurement. Two rigs 5x280x and 1x290, 1x470, 2x480 pulling 1,65kW from wall for 200+MH/s

If I had to guess

5x 280x = 180Watts each X 5 = 900
290 = 250 Watts
470,480 = 150 Watts x 3 = 450 Watts

Total ~ 1600

chup

sr. member

Activity: 736

Merit: 262

Me, Myself & I

Quote from: adaseb on October 15, 2016, 03:54:14 AM

So they use about 175Watts each correct?

Huh, never disconnected one to do precise measurement. Two rigs 5x280x and 1x290, 1x470, 2x480 pulling 1,65kW from wall for 200+MH/s

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: chup on October 15, 2016, 03:52:07 AM

Quote from: adaseb on October 15, 2016, 03:34:41 AM

What voltage are yours set to run at 1170Mhz core?

Problem running at that large Mhz is that you need a high voltage and they become very bad at power consumption.

I run most of mine at around 1V and it runs 1070/1600

Depend on card: 1.137 or 1.112V. At 1070 they can run on 1.087 stable. Changing them (slowly) for 480 and 470.

So they use about 175Watts each correct?

chup

sr. member

Activity: 736

Merit: 262

Me, Myself & I

Quote from: adaseb on October 15, 2016, 03:34:41 AM

What voltage are yours set to run at 1170Mhz core?

Problem running at that large Mhz is that you need a high voltage and they become very bad at power consumption.

I run most of mine at around 1V and it runs 1070/1600

Depend on card: 1.137 or 1.112V. At 1070 they can run on 1.087 stable. Changing them (slowly) for 480 and 470.

adaseb

legendary

Activity: 3808

Merit: 1723

What voltage are yours set to run at 1170Mhz core?

Problem running at that large Mhz is that you need a high voltage and they become very bad at power consumption.

I run most of mine at around 1V and it runs 1070/1600

Bostast

newbie

Activity: 10

Merit: 0

Quote from: newmz on October 15, 2016, 02:51:11 AM

I used to have 2 x 280Xs in my rigs and I sold them on Ebay because they use SO MUCH electricity for a pretty low hash-rate. I had them core overclocked to 1150 and they did 17-18mh/s. Far better to use a 380. With a 380 at core 800, mem 1500 I get 20-21mh/s and using much less power. Or a 290/x at core 1100 mem 1125 gets me 30mh/s but uses a lot of power.

There was some discussion earlier about how flashing a BIOS would void warranty? Who would still have a 280X under warranty anyway? They are about 4 years old aren't they?

If you underbvolt the 390, to about 1.000V and 970MHz, you can get about 27.5 MH/s. But use a lot less power.

newmz

sr. member

Activity: 372

Merit: 250

The road of excess leads to the palace of wisdom

I used to have 2 x 280Xs in my rigs and I sold them on Ebay because they use SO MUCH electricity for a pretty low hash-rate. I had them core overclocked to 1150 and they did 17-18mh/s. Far better to use a 380. With a 380 at core 800, mem 1500 I get 20-21mh/s and using much less power. Or a 290/x at core 1100 mem 1125 gets me 30mh/s but uses a lot of power.

There was some discussion earlier about how flashing a BIOS would void warranty? Who would still have a 280X under warranty anyway? They are about 4 years old aren't they?

chup

sr. member

Activity: 736

Merit: 262

Me, Myself & I

Quote from: gollumist on October 14, 2016, 11:51:41 AM

Quote from: YIz on October 14, 2016, 09:36:57 AM

Not sure how you get such low temps but my 280X already runs at 80c without that high of a clock speed.

Those temperatures are possible at this overclock only with water cooling!

Wrong. No water cooling. Sapphire Vapor-X. Down volt with Trixx. Soon or a later I will have to dismantle and change cooling adhesive at the one that can't keep with other's low temperatures. And I didn't blow dust from them for almost a year. Roll Eyes

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: antantti on October 14, 2016, 12:59:52 PM

How much is 7970/ 280x doing on EXP currently? Could be more profitable for tahiti owners?

Its like 30-40% faster but the pay is less so in the end you make the same amount. The calculators aren't accurate.

It also uses a little more power.

Topic: R9 280X - 15Mh/s (Read 3006 times)