Quote from: Bakhtra on January 04, 2018, 12:12:12 AM

Why go for 1500w? I think that too expensive, better go for 1000w or max 1200 and then add 1 more psu later (1000w or 850w)

I did some calculations and probably you're right. Let me explain.

I'll start with 6x GTX 1070. Each of them uses between 150 watt @ 30 Mh/s out of the box. I've seen people getting 30 Mh/s using just 105 watt with a bit of tuning. Long story short the power consumption should vary between 900 watt (worst-case scenario) and 630 watt (best-case scenario). I also need to consider the consumption of other parts (CPU G3900, ASUS B250 Mining Expert, RAM 1x4GB, 1xSSD, 6x 12cm fans). Probably we're around 1000 watt therefore we have...

1st PSU to power 6x GPU and the entire system: 1000 watt (max) / 730 watt (min). If everything I said is correct, yeah, I should take max 1200 watt.

Now let's suppose that I one day want to add 6x additional GTX 1070. I'll need to attach another PSU to the ASUS B250 to provide energy just for the GPUs therefore...

2nd PSU to power 6x GPU: 900 watt (max) / 730 watt (min). A PSU with 1000 watt should be enough.

3rd PSU to power 6x GPU: same exact story.

If everything is correct I saved a decent amount of money so thank you Grin

Quote from: leowonderful on January 04, 2018, 12:21:21 AM

I used to use a DPS-800GBA and a breakout board which I paid a total of $35 for with FS and it outputs 1000W on 220V and is platinum rated IIRC and comes with four 6-pin connectors. The PSU was also not loud at all- definitely wasn't the loudest part of my mine. Some of the higher-power PSUs are loud, but not all of them are. If you can solder at all, it's possible to just solder on the 6pin connectors by reading pinouts for a specific server PSU and save money by skipping a breakout board.

I understand but I am not that good to "play" with PSU. I prefer to go for a plug and play solution even if I'm going to pay more.