[XMR] RX 480 Overclock settings / Hashrates. Collaboration of information

[Lerrcey]

I see a lot of figures thrown around that I struggle to either achieve or believe. Therefore I have a few questions I'd like you to go through, and I will also answer them and try to help where possible.

Please avoid dick swinging and shit slinging, and please don't exaggerate your figures or recordings; try to be honest.

I know we're technically competitors in this market, but lets try to make it better for everyone(?);


1. How many 480's are you working with and which versions?

2. How stable are your mining rigs?
      How often do they fall over or do you pre-emptively restart them?

3. Best and worst hash rate on the machine?

4. What is your Power Draw from the wall?

5. What is your priority? Power usage? Hash rates? Stability?

6. How do you apply your *clocks (with the program / Wattman / Afterburner)?

7. What are your *clocks? (Core Voltage (mV), Power Limit (%), Core Clock (MHz), Memory Clock (MHz))



1. I have 18 RX 480s Sapphire OC Nitro+ split across 3 miners. Their ASICs are split (1) 65%-70%, (2) 70%-76%, (3) 78%-88%.

2. Stability appears dependent on mining software used. With ZCash I had well over 2 weeks stable (before an update released or I tweak something). However with XMR they don't seem to be going beyond 24-30 hours (I thought I had them at over a week too however with the same *clocks applied I'm not getting near that lately.)

3. (1) 688-692 Hash. Total 4150 (2) 697-702 Hash. Total 4200 (3) 700-705 Hash. Total 4200

4. My best pulls 780W and worst is 820W.

5. My priority is a little bit of everything. I try to have a happy balance as I believe it's pointless squeezing out an extra 5 hash per card at the cost of another 100W from the wall. Simple not financially beneficial.

6. I personally user Afterburner. I disable Wattman and MSI from start-up to avoid conflict however check the 'apply oc at start up' with MSI. If I change any clocks I restart the computer and have the miner boot with startup.

7. All -96mV. +20%.  (1) has 1300 CC 2125 MC.   (2) has 1300 CC. 2150 MC.   (3) has 1320 CC. 2150 MC.



If you have any questions that you think would be beneficial adding please just ask. Let's work together. Thank you

[uninexus]

Are those 8GB models or 4GB ? RAM overclock seems high for 4GB models - I can get at best around 1950 or so with 4GB (Elpida)
For the RX470 Sapphire's I get about 2025 overclock.

I will work with you on that if you wish - but give me some time to do tests...

-mclock 2025
-cclock 1150
-cvddc 950
-mvddc 950

That's my setting for the Sapphire RX470 OC 4GB

[Za1n]

4. My best pulls 780W and worst is 820W.

I like your idea for a information gathering thread, but you are unclear on your own results. Do you mean your best (3) 700-705 Hash rig you get 780W or does this one draw 820W? I ask as the hash/watt ratio is important for most of us who pay for electricity.

[ratatella]

I've put my results in this excel:

https://docs.google.com/spreadsheets/d/1orIghgpuJ_NEHfMCq65FhqitPX_El9U-7rIbyyKRdKE/edit?usp=drivesdk

[lummujaj]

I've put my results in this excel:

https://docs.google.com/spreadsheets/d/1orIghgpuJ_NEHfMCq65FhqitPX_El9U-7rIbyyKRdKE/edit?usp=drivesdk

i see 760 h/s in monero , can i have more information ? how to achieve this speed

[melfice123]

Hello,

1. RX 480 Msi Gaming 4GB Hynix Memory,  flashed with Anoraks Bios mod.

2. Core 1205@960mV, Memory 1950@975mV.

3. I have 2 rx470 and one rx480.

4A. At the wall entire system read 450W, Gpuz read 78-85W for RX480 With Monero and 710 h/s, 524w.

4B. With Zec entire system read 480w, Gpuz read 90-94w and 220 h/s.

4C. With ETH entire system read@wall 560W, Gpuz read 96-99w and 28-29 mh/s.

Grettings!!!

[ratatella]

I've put my results in this excel:

https://docs.google.com/spreadsheets/d/1orIghgpuJ_NEHfMCq65FhqitPX_El9U-7rIbyyKRdKE/edit?usp=drivesdk

i see 760 h/s in monero , can i have more information ? how to achieve this speed

I've achieved this speed using a rig with xfx rx480 8g reference gpus where from I've copied the 1750 strap into the 2000 strap. And set core/Mem to 1250/2235 with the config of the mining software.

Mining software used is: ethOS (version 1.1.8 ) with the miner set to sgminer-gm-xmr.

Hope this helps you..

[andrew2k]

I can confirm that RX 480 8GB Sapphire Nitro+ does get around 750H/s (with Claymore's 751H/s, with Wolf's 760H/s 1-2% of shares are invalid though with this one). I have the core at 1370Mhz and memory at 2250Mhz, only overvolt needed was 19mV for the clock (the clock isn't really necessary, you can get 730-740 just with memory at 2250 and no overvolt). Consumption on one card is around 120W.

The core overclock is stable with Monero mining, benchmarks and so on but it isn't stable when mining Zcash (crashes randomly), you have to add more mV for stability.

In my opinion, using Wattman and no BIOS flash pretty much insures that you'll keep your warranty. The Wattman overclocking software basically overclocks the card at Windows start-up, it has certain limits and it won't be easy to fry the card butif it gets bricked they won't really be able to tell if it was overclocked like that (not 100% sure about this though).

[reachr]

Hi,
Have you try sgminer-gm with this parameter on your rx 480 : -w 4 -g 2 --rawintensity 508

Can you say me if you have better result like 780 - 800 h/s.

Thanks.

[Qazo]

I can confirm that RX 480 8GB Sapphire Nitro+ does get around 750H/s (with Claymore's 751H/s, with Wolf's 760H/s 1-2% of shares are invalid though with this one). I have the core at 1370Mhz and memory at 2250Mhz, only overvolt needed was 19mV for the clock (the clock isn't really necessary, you can get 730-740 just with memory at 2250 and no overvolt). Consumption on one card is around 120W.

The core overclock is stable with Monero mining, benchmarks and so on but it isn't stable when mining Zcash (crashes randomly), you have to add more mV for stability.

In my opinion, using Wattman and no BIOS flash pretty much insures that you'll keep your warranty. The Wattman overclocking software basically overclocks the card at Windows start-up, it has certain limits and it won't be easy to fry the card butif it gets bricked they won't really be able to tell if it was overclocked like that (not 100% sure about this though).

same cards, with your settings one card crashes after ~2 hours and freeze all system (but I was getting about 1500 h/s)

now I'm using wattman
2x 480 8GB Sapphire Nitro+
core 1340, 1110
memory 2175, 1000

about 310-320W from wall

Claymore v 9.7

[neguinho]

Friend wanted a doubt his would be profitable 5 rx 460 shaphire nitro 4 giga for mining xmr or eth?

[TheKoolaider]

1. How many 480's are you working with and which versions?

-10 RX 480. All 8GB Versions. 6 XFX, 4 MSI

2. How stable are your mining rigs?
      How often do they fall over or do you pre-emptively restart them?

-Always stable, never restart, never freeze. This is for both machines.

3. Best and worst hash rate on the machine?

I feel this question should just be your hash rate, I'm not going to guess what the pool is telling me because it fluctuates constantly.

-XFX: 3828h/s. MSI: 2552h/s

4. What is your Power Draw from the wall?

-XFX: ~900  MSI: ~650

5. What is your priority? Power usage? Hash rates? Stability?

-See 3

6. How do you apply your *clocks (with the program / Wattman / Afterburner)?

-Afterburner

7. What are your *clocks? (Core Voltage (mV), Power Limit (%), Core Clock (MHz), Memory Clock (MHz))

-Stock everything except for XFX undervolt at -72, MSI undervolt at -98. If I try to overclock anything both rigs will freeze and crash.

[rinus]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

[AceCobra2]

I am currently mining ZCash. Just wondering, once I have overclocked to a speed that is stable, is it possible to flash it in the bios so that the settings are permanent rather than needing to manually adjust it everytime I reboot esp. on a multiple GPU rig?

I also noticed that when I modified the timing on the Sapphire RX480 OC 8GB version, it is recognized in Windows 10 but it comes up as a (!) and a driver can't seem to be installed. Any ideas ?

[rinus]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

Ok so I just tried to put 1750 straps in my first card and after 2 hours it crashed. How do u guys keep it stable? Automatic restart of miner ?

[Truthchanter]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

Ok so I just tried to put 1750 straps in my first card and after 2 hours it crashed. How do u guys keep it stable? Automatic restart of miner ?

If it's crashing, can be many things: bad risers.. too high overclock, too low undervolt. What volts and clocks are you using?

[rinus]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

Ok so I just tried to put 1750 straps in my first card and after 2 hours it crashed. How do u guys keep it stable? Automatic restart of miner ?

If it's crashing, can be many things: bad risers.. too high overclock, too low undervolt. What volts and clocks are you using?


Stock factory BIOS. And highest p7 freq 1342 MHz at ,1150 MV. 2000mhz Mem at 1000mv. These are my stock settings and runs stable 15 hours ( did not test longer ). I just tried to set Mem from 2000 to 2100 on alnmy cards still using stock BIOS and it crashed after 10 minutes. Windows reboots and start mining again... And sometimes it's just stuck, no reboot

[uninexus]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

Ok so I just tried to put 1750 straps in my first card and after 2 hours it crashed. How do u guys keep it stable? Automatic restart of miner ?

If it's crashing, can be many things: bad risers.. too high overclock, too low undervolt. What volts and clocks are you using?


Stock factory BIOS. And highest p7 freq 1342 MHz at ,1150 MV. 2000mhz Mem at 1000mv. These are my stock settings and runs stable 15 hours ( did not test longer ). I just tried to set Mem from 2000 to 2100 on alnmy cards still using stock BIOS and it crashed after 10 minutes. Windows reboots and start mining again... And sometimes it's just stuck, no reboot

Which RAM brand do you have on your 480s - is it Samsung on all of them ? What is your ASIC quality on the GPUs ?

[rinus]

ok i think this is the topic i was looking for .
I have 4 RX 480 nitro+ 8gb , an old mobo with 4 pci slots , 4 pci risers and 1200w corsair 1200i PSU. i am already trying to mod bios for a week now , modding itself is easy but getting the rig rock stable does not work for me ...

my resultas so far :

started out with base bios and base settings , so i get 640 hash per card so 2550 all together , runs stable for 15 hours ( did not test it longer but it looks really stable ).
then i tried 1500 straps , 1625 straps and last 1750 straps ( seem to be the best for rx480 with samsung memory ). But when was mining with all of these straps in all 4 cards
with basic settings , the rig does only run for a couple of hours. with the 1750 straps and basic settings it run for about 8 hours and crashed then. So for me its hard to believe
that people run theste rigs with 1750 straps on the same cards like i have AND also undervolt the hole thing... it would be nice though if somebody could tell me what i am doing wrong.
i ordered 12 more rx 480 and also some Pro btc 2.0 motherboards , so i can have 6 cards on 1 mobo instead off 4. and hopefulle the mobo makes my rig a bit more stable but i dont think it has someting to do with
stability.

So to make things short
- running base bios and base settings ==> rock stable
- running 1750 timings in new bios and basic settings ==> 8 hours stable max !

- now i am running base bios and changed on 1 card the memory from 2000 to 2100 , running stable for 4 hours now and when its stable for 12 hours , i will apply same setting to seconds card , and so on , so on ...

i will keep u guys posted about my progress.

in the mean time , it would be nice to get some ideas of what i am doing wrong or why is it unstable with 1750 timings and base settings? should i make a script that restarts the miner every 3 hours? like this it can maybe mine stable with high hashrate and low power consumption and not crash the whole rig ...

Ok so I just tried to put 1750 straps in my first card and after 2 hours it crashed. How do u guys keep it stable? Automatic restart of miner ?

If it's crashing, can be many things: bad risers.. too high overclock, too low undervolt. What volts and clocks are you using?


Stock factory BIOS. And highest p7 freq 1342 MHz at ,1150 MV. 2000mhz Mem at 1000mv. These are my stock settings and runs stable 15 hours ( did not test longer ). I just tried to set Mem from 2000 to 2100 on alnmy cards still using stock BIOS and it crashed after 10 minutes. Windows reboots and start mining again... And sometimes it's just stuck, no reboot

Which RAM brand do you have on your 480s - is it Samsung on all of them ? What is your ASIC quality on the GPUs ?

Yes Samsung on all of them. Asic quality is between 65 and 68 procent. Any idea?

[uninexus]

I've had poor results with overclocking the 4 GB Sapphire Nitro+ 480s. I believe they have slower RAM than the 8 GB version though. Is it stock 2000 Mhz on the 8 GB version ?
I don't think you will be able to overclock to 2100 - maybe try stock setting and see if it is more stable.

I would try a slower GPU clock setting and lower GPU and RAM voltage - I think I had mine running at:

-cclock 1150 -mclock 1850 -mvddc 950 -cvddc 950

Try yours at -mclock 2000 and work from there.