I edited OP with what i'd consider buying atm.

Well, this is a step forward: I managed to get the top off a die without destroying the carrier.

Titans, but some of the issues, especially the ones where the Titan shorts the controller are out of reach. Vegas, do you have a stencil to reball a Titan die? The big problem with them is related to the 1.2 volt lines to the die controller shorting out, if you can remove those pads or cut the traces under the board you would win big time.

That's a bitch on wheels of a problem :-) So far though the only way into the chip is either with a crowbar or a blowtorch.

You are not correct, I have Linux version of XMR miner. Probably I will port this miner to Linux, but it will take some time so I'm going to add some important useful features to Windows version firstly.

Nobody panic selling? Eth is crashing at the moment, after all.

Can still fix Titans, but some of the issues, especially the ones where the Titan shorts the controller are out of reach.

Offering up some of my overstock of Powered PCIe 1X Risers and 6 pin to 8 pin PCIe.

All prices include shipping to the lower 48, PM for additional locations.

Powered PCIe Ribbon Riser supporting PCIe 6 pin, or molex power.. Good for setups using server PSUs

I was asked by some people for a package of 6, $35 shipping included..

Single $7 USD shipping included..

Aw damn, you're going to beat me to it. The key for me was realizing that the fpga-titan code can be loaded with the neptune fpga loader and the io-pwr command from the neptunes.

Couple that with compiling up the driver support code with a few hacks into bfgminer and you're up and running.

Nice job, thanks for working on this. Now I have more time time fix hardware fails.

By the way, when you melt the connector to the point where the board burns it's a bitch on wheels to fix.

Melting is caused by a couple of things. When you plug a miner in while the power is on, there is a little spark that happens because the miner's 12 volt caps are charging up from zero. Each spark leaves a nice pock mark on the plug or socket. Eventually that causes resistance which causes heat which causes more resistance.

The other issue is voltage. The cube is going to take a certain number of watts. When you start lowering th voltage below 12v due to cheap cabling, the current draw has to go up. Current is what generates heat in voltage drop situations (P=IE), so when you voltage drops to 10v the thing is now dropping 2v*20a=40w of heat along that line. Then it gets hotter resistance goes up, hilarity ensues.

Third thing is the interconnections between the PCIe connector and the Titan board, if you look at the ground lines on layer 1 and 6 you see that the PCIe pin goes to a via which connects to a very small set of four spider connectors to the ground plane. They do the same thing with +12, it's only a few mm, but as you heat up those pins you will start to burn out those spiders. Once one pin's spiders go the other spiders have to carry more of the load which burns those pins and you know where this leads.

Solution? You could run a supply with a massive amount of power, but remember those cubes don't have fuses in them so if something like a FET shorts inside a power supply you go from a simple *pop* to what could nicely be described as a small plasma fireball (see Amp Interrupt rating). This can then cause the phenolic on the board itself to conduct which will turn your unit into a 3,000 watt electric dryer in a 1 foot cube. This could then be described as "hilarious".

Or try dropping down the power. These units hash nicely at 60mh, do you really need 80+?