Insane power consumption (rx 470 rig)

[Kainzo]

I'm using RX 470 x7 in a machine (1200w psu) For some reason, I'm pulling 1150 watts. Or 11ish amps of power. I feel like I should be around 7-8 amps or under 100 watts per card. Can anyone point me in the right direction? I believe it'll require vbios mods but I'm pulling my hair out.
EthOS.
Hash = 26 26 26 27 27 27 28
Temp = 65 54 58 50 66 59 68
Ptune = 3 3 3 3 3 3 3
Fan = 4 4 4 4 4 4 4
Core = 1.10 1.05 1.05 1.10 1.10 1.10 1.12
Mem = 1.93 1.90 1.90 2.00 2.00 2.00 2.15

[mushtuk]

You can't run RX470 with just or under 100W. My 1060s are running @ 90-92W modded. Get them on Windows and do a BIOS strap mod, then undervolt the core and overclock the memory. Then you should be able to get them @ about 120W each.

[cptfisher]

i also feel like i should run my 470 @ 90 w .... just because you read comments from stupid people that say that their 470 use 80 w from gpuz  this does not mean that that is the right mesurement... without proper modding an rx470 will suck the shit out of the power outlet.... approx 140w ... 170 DUAL MINING. so consider yourself satisfied at 120 -130w in eth mining at 28 mhs

[h311m4n]

My 470 rigs all pull around 900-950W dual mining. ETC @ 27-29 and Sia @ ~260

Say the system accounts for around ~50W, that's 140-150/card. Remove dual mining it drops to 750-800W per rig.

What you need to do:

Reduce core frequency/voltage (either fixed or with an offset)
Reduce memory voltage

All this can be achieved with Watttool and Claymore, no need to actually do a bios flash apart for the straps.

EDIT: didn't see you were using Ethos. You can edit the bios of your card and do the undervolt/underclock with polaris bios editor. You can typically set memory clock to less than 1000mv, try 900 for instance, even if you OC the memory.

I know that with newer 470s I got, it was "impossible" to go below 1V on the core in GPUz, even with an offset. I had to forced it through Claymore (cvddc), shut down completely and lower the memory voltage in Watttool. Then only those GPUs got below 1V in GPUz and even down to about 0.85V or less.

Note: I monitor all my rigs with wall plugs. GPUz gives an indication, but it's just the core Wattage, not the entire card, so like mushtuk says, it isn't an accurate measurement of the actual consumption of a rig.

[Kainzo]

Thanks for the insight. I'm using a wattage meter to see what im pulling. 

I believe the issue stems from the PSU or mobo, I'm changing them out soon.

[Kainzo]

My 470 rigs all pull around 900-950W dual mining. ETC @ 27-29 and Sia @ ~260

Say the system accounts for around ~50W, that's 140-150/card. Remove dual mining it drops to 750-800W per rig.

What you need to do:

Reduce core frequency/voltage (either fixed or with an offset)
Reduce memory voltage

All this can be achieved with Watttool and Claymore, no need to actually do a bios flash apart for the straps.

EDIT: didn't see you were using Ethos. You can edit the bios of your card and do the undervolt/underclock with polaris bios editor. You can typically set memory clock to less than 1000mv, try 900 for instance, even if you OC the memory.

I know that with newer 470s I got, it was "impossible" to go below 1V on the core in GPUz, even with an offset. I had to forced it through Claymore (cvddc), shut down completely and lower the memory voltage in Watttool. Then only those GPUs got below 1V in GPUz and even down to about 0.85V or less.

Note: I monitor all my rigs with wall plugs. GPUz gives an indication, but it's just the core Wattage, not the entire card, so like mushtuk says, it isn't an accurate measurement of the actual consumption of a rig.

Can you tell me what an actual offset is?  I'm attempting to do this.
I've reduced mem voltage to 900mv. The core freq/voltage seems odd and has weird numbers like 62258 etc

[Plumbus]

I'm using RX 470 x7 in a machine (1200w psu) For some reason, I'm pulling 1150 watts. Or 11ish amps of power. I feel like I should be around 7-8 amps or under 100 watts per card. Can anyone point me in the right direction? I believe it'll require vbios mods but I'm pulling my hair out.
EthOS.
Hash = 26 26 26 27 27 27 28
Temp = 65 54 58 50 66 59 68
Ptune = 3 3 3 3 3 3 3
Fan = 4 4 4 4 4 4 4
Core = 1.10 1.05 1.05 1.10 1.10 1.10 1.12
Mem = 1.93 1.90 1.90 2.00 2.00 2.00 2.15

Sounds about right if you haven't undervolted them. My 4x 580 8GB rig was pulling a little over 1000W before any power/voltage adjustments

[Matarin]

You can't run RX470 with just or under 100W. My 1060s are running @ 90-92W modded. Get them on Windows and do a BIOS strap mod, then undervolt the core and overclock the memory. Then you should be able to get them @ about 120W each.

That is the ballpark figure I get.