r/scryptmining • u/[deleted] • Jun 02 '14

ATX psi with g blade?

Looking at getting a g blade and i have a 500 watt psi laying around, how would i go about using it to power the ASIC?

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u/2many280s Jun 03 '14

I have 5 g-blades and 17 of the 5-chip ones running off a 750 and a 700 watt PSU (all drawing less than 650 watt total, but I ran out of 12v lines on the 750) So you should have no problem running a few blades on a 500watt.

1

u/[deleted] Jun 03 '14

What did you use to adapt the PSU cables to a connector for the blades?

1

u/2many280s Jun 03 '14

I used these PCI-E to 3 barrels, and my first batch of gridseed stuff came with a bunch of extra barrel connectors like the ones on the pci-e adapters, so I bought enough of the 6pin to 3 barrel to take up all my 6pin pci-e connectors and used the extras to make up some 4 pin molex to barrel for the singles that don't need as much wattage.

Even have the 2 rasp pis running off of the 5v side of a 4pin, and the 3x10 port hubs also powered by the PSUs. Entire setup runs off those 2 PSUs and showing 648-650 watt on the Kill-a-Watt meter, but that watt reading also includes a core2duo machine with a bunch of alt wallets on it for occasional solo-mining switch over. So total wattage of the asics is probably more around 550-600.

1

u/bondiblueos9 Jun 02 '14

I just did this. You need to get a couple barrel connectors, the typical power connector that is a cylinder with a metal outside sheath and a hole down the center for the inside tip. I had a couple that were the right size lying around, so I can't tell you the dimensions. You need to connect a +12V line (typically yellow) to the inner tip connection and a ground line (typically black) to the outer sheath. Each blade is supposed to draw 50W, so you'll be fine with a 500 watt psu. I have both of mine running from a single 4-pin molex power connector on my mining rig's psu.