My RX580 Benchmarking and Results: 30.5Mh/s @ 77.5W (+ 1130MH/s Dcr w/ 125W)

[cabslock]

This only has the PCI-E connections, you would still need a PSU, that can power the risers aswell

There's PCI-E powered risers, but yes you'd still need a low wattage normal PSU with it, overall cost is down, and efficiency is up.

I see that it has only 8 PCI-E slots, but for six cards you'r gonna need a total of 12 slots.

[Apneal]

If you dont want to use splitters I suppose, but I fail to see the point considering you need a normal PSU anyways.


I did some more power testing. The power draw per card from the wall (measured by plugging both the riser and the 8 pin power into a dedicated 94% eff power supply and multiplying the reading by .94)

Is 138W (eth only, 0.84V). 50W of this is from the PCI riser!

[Marvell1]

If you dont want to use splitters I suppose, but I fail to see the point considering you need a normal PSU anyways.


I did some more power testing. The power draw per card from the wall (measured by plugging both the riser and the 8 pin power into a dedicated 94% eff power supply and multiplying the reading by .94)

Is 138W (eth only, 0.84V). 50W of this is from the PCI riser!

pci slots can draw up to 75 wats , even if your card was plugged into the board mo riser

it would still draw close to identical wattage frome the slot

[yun9999]

What drivers are you guys using for the 570 with the mod ROM?  Any issues with RELIVE due to MOD roms?

[BTC_ISTANBUL]

Can someone share edited rom for RX 580?

[antantti]

This may be old news but did you guys know there are two versions of polaris 20, XTX and XTR?

[Dinmaster]

from what i saw in articles is that the xtx is the 580 and the xtl is the 570...

[antantti]

from what i saw in articles is that the xtx is the 580 and the xtl is the 570...

There are 580's with XTX and XTR chips, XTR ones are more or less handpicked with lower default voltage and higher clocks. This is all we know so far, this is undocumented feature.

[Apneal]

What drivers are you guys using for the 570 with the mod ROM?  Any issues with RELIVE due to MOD roms?

I'm using the leaked press release drivers because I'm having issues with the newest drivers on Claymore
http://forums.guru3d.com/showthread.php?p=5420996

[Truthchanter]

from what i saw in articles is that the xtx is the 580 and the xtl is the 570...

There are 580's with XTX and XTR chips, XTR ones are more or less handpicked with lower default voltage and higher clocks. This is all we know so far, this is undocumented feature.

Wow that's interesting. I wonder if gpuz shows which chip you have.. and if like all gpus of a certain model (like for example msi 570 4gb armor) are all the same "chip type"

[antantti]

Wow that's interesting. I wonder if gpuz shows which chip you have.. and if like all gpus of a certain model (like for example msi 570 4gb armor) are all the same "chip type"

Some cards with XTR chip:

MSI Radeon RX 580 Gaming X+
Asus ROG Strix Radeon RX 580 TOP
Aorus Radeon RX580 XTR
Sapphire Nitro+
XFX GTR­-S Black Edition

Source (finnish, sorry guys):

https://www.io-tech.fi/artikkelit/amd-radeon-rx-580-570-polaris-20/

[SunStruck]

Anyone got a list of which 5xx cards use samsung memory?

or is the sapphire 580 8gb nitro LE the only one?

EDIT:

seems that the LE version can be hynix too... what a minefield.

http://cryptomining-blog.com/8623-crypto-mining-with-sapphire-nitro-radeon-rx-580-limited-edition/

[Joren22]

anyone tried mixing a RX 480 with the RX 580 and run with mining?

[chitolsp]

How much reduces timelife of GPU when you biosmod it?

Also you've a picture of Dualmining? Just for P0rn 

[Starsky886]

How the hell can you guys mine that high with such a low power consumption ?!

My MSI 580 Gaming X is pulling 28 mh/s + 1100mh/s DCR and it takes around 200watts

Would anyone want to give me an overclocking lesson? I guess it could be very usefull and I could pay for it...

[chitolsp]

How the hell can you guys mine that high with such a low power consumption ?!

My MSI 580 Gaming X is pulling 28 mh/s + 1100mh/s DCR and it takes around 200watts

Would anyone want to give me an overclocking lesson? I guess it could be very usefull and I could pay for it...

I never have do Biosmod but i see that is something with Power Limit + Core Clock + Core Voltage. Look at youtube (It's free)

[Apneal]

How the hell can you guys mine that high with such a low power consumption ?!

My MSI 580 Gaming X is pulling 28 mh/s + 1100mh/s DCR and it takes around 200watts

Would anyone want to give me an overclocking lesson? I guess it could be very usefull and I could pay for it...

Undervolting the piss out of your card, and balancing how much performance you're willing to give up.

Consider:
1MH/s ETH = 30W
10MH/s DCR = 6W
(obviously these figures change and are dependent on your local electricity prices, but is a good guide)

What this means is that if you sacrifice less than 1MH/s Eth and save 30W, you're profiting. So if you clock down to 1100mhz lets say and dual mine 27mh/s and 1000mh/s DCR, but this lets you drop your core coltage down to 0.8 and you now only pull 150watts, you're profiting (and extending the life of the card)

[Flickspeed]

What are  the dual mine speeds? (stock and modded). All topics only mention ETH mining..

I've been continuing to tweak and also optimizing for dual mining.

So far:

Eth: 30.5 Mh/s
Dcr: 1130 MH/s
VDDC: 0.877
Core: 1300
Mem: 2100
Mem voltage: 0.9
Strap: Custom mix
Mem Errors: 0/min
Power: 125W

NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr

Can you post the custom timings string? These of course are the same chips as before some optimum strings have already been found, but I like this one due to only needing 2100 MHz Very nice target to get 30.5 MHs

[Truthchanter]

What are  the dual mine speeds? (stock and modded). All topics only mention ETH mining..

I've been continuing to tweak and also optimizing for dual mining.

So far:

Eth: 30.5 Mh/s
Dcr: 1130 MH/s
VDDC: 0.877
Core: 1300
Mem: 2100
Mem voltage: 0.9
Strap: Custom mix
Mem Errors: 0/min
Power: 125W

NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr

Can you post the custom timings string? These of course are the same chips as before some optimum strings have already been found, but I like this one due to only needing 2100 MHz Very nice target to get 30.5 MHs

Can use 0150E2A3186272E16">http://doreymills.ca/cgi-bin/strapmod?555000000000000022CC1C00AD515A3EC0570E142D4A64080049C700030114207A8900A00300000 0150E2A3186272E16

just plug in your own 1500, 1625, or 1750

[rednoW]

not good results at all.
my power color red dragon rx480 8mb is doing 30mhs@70w (gpu-z), sapphire ref-like rx470 is doing 28.8@73w (gpu-z) - ethereum only mode

did you set the timings straps to 2000 ? or just OC ? or both of them

custom timings (but public available, not private, private even better I think)
rx480 is clocked 1170/2050, rx470 1100/1980. voltage 0.88-0.9. Very stable and happy ))
and the queen - sapphire nitro+ 480 8gb samsung 1170/2200@0.88 @ 80w gpu-z 31.5mhs eth