So us guys here at GekkoScience have been working with server PSUs for going on three years. Since the beginning we've added some things, changed some things so we need a basic list of "here's everything we have". Info is sorta scattered all over the forum and, in some cases, outdated. So, here's the fresh and complete list.
All of our interface boards and cables are designed and assembled in-house using domestically-sourced materials. We do not endorse slavery.
PM me or email
[email protected] for purchasing information
2Pac 2xBM1384 USB Stick MinerThis is an upgrade to the Compac stick miner, incorporating two mining ASICs instead of one. This means that, for the same total hashrate, each chip runs at a higher efficiency increasing the overall device efficiency substantially. This stick can hit 33GH from the same power the original Compac needed for about 22GH, a 50% increase. It's built for overclocking just like the original. The cgminer driver has been rewritten from the ground up to better support both this and the original 1-chip Compac for smoother operation.
The picture above is a prototype shot; the release version (shipping now) has a silver heatsink. I'll update that sometime.
Pricing: $30 each any quantity, $10 flat shipping per order.
Dual-Purpose DPS800/DPS1200 Interface BoardThis board is designed to work with both DPS800 and HP Common Slot (PSU family with options from about 500 up to 1500W) edge-connector PSUs. It can be made with either 4-position screw terminals (two rows per rail, 16 screws total) or 12x PCIe 6-pin jacks for quick connectivity. The board uses the same 10-pin header common to all GekkoScience breakout boards, providing External Turnon, 3.3V Standby, POK and optional 5VDC aux supply. On this board, there is no Current Sense, Current Share or External Fan functionality. 5VDC aux supply is not populated on standard boards.
Pricing:
QTY | Price |
1-9 | $32 |
10-24 | $30 |
25-49 | $28 |
50-99 | $27 |
100+ | $25 |
The additional 5VDC aux is $3 extra per board and may require additional lead time.
DPS1200 PSU Kit (S7/S9 compatible)This kit includes one DPS-1200FBA 1200W-rates server PSU, one GekkoScience DPS812 board, and ten 18" PCIe double-ended 16AWG cables. Kit pricing is $80, a savings of around 10% over buying everything individually.
The DPS-1200FBA PSU is rated to deliver 900W from 120VAC and 1200W from 200-240VAC, but it's capable of better than that - I have run S4+, S7 and S9 miners off this supply. If you know what you're doing, voltage is internally adjustable from 11.8V-12.8V
PRICE: $80 each
PCIe to 5V/12V Adapter (4-Molex)The board is built to take in 12V from two 6-pin PCIe jacks (though only one may be necessary depending on loads) and outputs both 5V and 12V on three 4-pin jacks. It is intended to convert 12V to 5/12V for 4-pin Molex peripheral connectors for powering GPU risers, hard drives and other things required by GPU rigs and standard PCs.
The board can, with moderate cooling airflow, support up to 20A on both 12V and 5V output lines simultaneously, making it quite capable for powering multiple GPU risers. The board has three screw holes for secure mounting. Pictured is a functional prototype; the final will be slightly different - output jacks will be straight (like the input jacks) and two LEDs will indicate the presence of input 12V and output 5V power.
PRICE: $15 each (cables not included, see below)
CablesWe also manufacture 16AWG and 18AWG cables in-house, with ends including PCIe 6-pin, 6+2-pin for GPUS, and 4-Molex for powered risers and peripherals, as well as a variety of crimp ends like #6 fork, 1/4" quick-connect, and ring terminals.
Sheathing may be available for an extra charge.
A standard PCIe double-ended cable, made with 16AWG wire and no sheathing, costs $3 for 18", $3.30 for 24" and $4 for 36". If you need something, PM me and I'll give you a bid.
Basic Miner HostingWe operate a small hosting facility with an open shelf setup so any miner is welcome (not just rack-mountable units), and VPN remote access to all miners comes standard. Pricing is a flat $0.089 per KWh of use. Billing is monthly, no-contract.
ShippingShipping tends to be through USPS Priority, or FedEx for large domestic orders. Most small orders ship for $10. 750W kits ship in Medium Flat-Rate boxes, up to three to a box, for $15.
Coming Soon (I hope):8-chip BM1384 Pod
14/16nm Compac and Pods
S1/3/5 refit boards with Bitfury
12Vin ATX adapter
12-28Vin ATX adapter
8-port USB hub with adjustable current limiting (0.5-3A)