Hello,
I have 2 rigs, both working stable 27mhs:
1st is I ordered from net and have consumption 900w from wall.
6x Gigabyte RX 470 GPU OC
Celeron G1840 Processor
Biostar TB85
DDR3 8GB Memory
Team 120GB SSD Harddisk
EVGA 1000w power supply
windows10
2nd I built myself and have so far 1300w from wall after -70 undervolting in MSI afterburner, 1100core/1950memory:
5x Strix RX 470 GPU OC - I will add 6th when power consumption will be much lower
Celeron G1840 Processor
Asrock H81 Pro BTC rev.2
DDR3 8GB Memory HyperX
Kingston 120GB SSD Harddisk
EVGA 1000w power supply
windows10
question 1: how it's possible that 100w PSU draw 1300wats from wall, (it was already 1400 when not udervolted) 250w when booted to windows 10
question 2: how can I drastically reduce power consumption, when similar rigs draws around 800 on youtube ???
question 3: can I also modify something in motherboard bios, CPU, RAM to reduce consumption?
Thank you!
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Comments
And most PSU with >1000W can provide more than they are desigend for. Cause you cant build them to explode at exactly draining 1kw
Q2: Undervolt your GPU
Q3: not really, but you can try to undervolt it. but CPU,MB,RAM schould only drain something like 30-70W
There are several post how to undervolt etc, just search
Also I'm not sure if extra power 2x 4pin connectors to motherboard should be connected from PERIF1 from PSU. I've got them connected and also powered risers from SATA. Maybe that's why it's drawing so much power, but I'm afraid to disconnect them
PSU is EVGA 1000W G1, max what I was seeing was drawing 1450W from wall, so good news for everyone
I do this because I start the miner with 0 offset as it needs more voltage on initial DAG,
then after it has started hashing stably, I change offset to drop the power. I find this is more stable. But requires you to reset it back to 0 before exiting miner as exiting miner also produces a surge in voltage requirements.
My rx 470 are only pulling 60w, yours should be around that area.
Also, jesus christ, those memory errors are out of control on the card with 1980mhz on the memory clock...You've gotta be generating a ridiculous amount of incorrect shares per day right? Might want to take a look at those memory timing straps (or use looser ones).
But no, no incorrect shares.
then I started it again and it works like a charm, drawing 820wat without memory underclocking at 28mhs+
so if someone will ever have extreme power consumption, disconnect everything from PSU for some time and reconnect, it worked for me
THANK YOU ALL!