Quote from: Piskeante on December 28, 2017, 04:50:47 PM

Quote from: mitserdt on December 28, 2017, 01:23:42 PM

Quote from: Piskeante on December 15, 2017, 11:20:56 AM

Hello, another noob here, Cool

I'm using 1 Shappire RX 580 Nitro+ 8gb with hynix memory. I just modded the bios

this are my numbers:

260W ish from the wall
mining etherium at 31.8mh/s.
1250mhz on the core
2250mhz on the memory
around 100W for the gpu core
fan speed at 30% around 57ºC for a 24hours period.
-175mV on the core
from 949 to 955mV while hashing.

am i doing the things right? Thanks for your help.

I will be setting up a system with a MSI RX 580 8GB in a few days. Your power consumption seems to be quite high compared to other figures i've seen on fora and youtube. Do you have this card in a complete system (so including other HDD's and a CPU with high TDP? I will be able to compare when my system is up. My rig will be headless and dedicated to mining though.

Hello. Normally people just tell you the gpu core power consumption. Mine is around 100W as i said. The system on idle uses about 100W to the wall. My cpu is a Xeon X5460 with 120W TDP, but even at full load only uses 40W according to cpuID HWmonitor, (it's way voltage downcloacked from VID numbers) so , not bad at all for a 4 cores 4 threads 8 year old dinosaur.
Yes, i use my rig for daily (it was not meant to be for mining but it is indeed now). add an 120mm AIO, 3 x120mm fans, ddr3 1,65v and not the best efficient mobo (though a good old one, like it is the Asus P5QC) and two hard drives, one SSD and 1TB hard drive. also RGB lights on the case and high performance keyboard and mice with RGB lights.

But, you should know that there are more variables. For example, the Asic Quality determines how much voltage does the card need to use, and moreover, are better overclockers and downclockers aswell. The higher asic, the better, mine is "average" at 75%.
Another variable is the memory. It's said that Samsung memory use less power than mine (Hynix memory)so there you can get a few watts less.
Another variable is the slot. cards with risers use less power according to what i've seen. very little less, but when you have 6 cards, well, it can be like 20-40W less for the whole 6 cards.

The sapphire RX 580 pulse model, as from stock uses less power, you can go way down to 0,835v using 77W and hashing nearly 30mh/s. While mine, the Nitro+ uses more core voltage so the number from which you can downclock is higher than on the pulse, even at -200mv it will not let me go below 0.925v no matter if i go to 1000mhz on the core. So, in practice, for only mining, the pulse is the way to go. Thought i think you can tell the miner to insert a certain voltage, i haven't tried it out.

for a complete 6 RX 580 8gb cards mining rig the total power consumption according to some people is about 850W to the wall. like 125W per card (assuming idle power consumption of about 100W)This is achivable just by going to 75-80W on the core power consumption.

I can confirm, that , with my settings above, i don't need to plug the 6 pin conector, it will be perfectly fine with the 8 pin connector while hashing. i've tried even 1450mhz on the core and 2250 on mem with just 6mv added to stock voltage on the core with only the 8 pin connector and it was perfectly stable in Uniengine Heaven and 3dmark fire strike, so....there you are.

according to my numbers, my card uses while hashing a total power consumption of about 150W, Being like 100W for the core and 50W for other components. I've tried going below that, but the savings on W are very little compairing with the Mh i do not get.

Thanks for your clarifaction. I somehow missed the 100W per card remark you made, I was comparing the 260w from the wall.

I finaly got my first card in and am playing around with the numbers. I'm in the 75-78W region in GPU-Z and 100W on a kill-a-watt meter. Now it's hashing stable at 28,7 Mh/s for 24 hours. This is with a modded bios (Samsung mem) with values from Uber-Mix 3.1. I'll be trying some more tuning.