From my mining experience, a 290 (and a 390) can easily push 250w+ if you're @stock volts/clocks.

Put 6 of them into a rig with minimal voltage / clock tuning and you'll be looking at a 1500w pull real fast.

The 2x Antec HCP 1000w suggestion is a good one.  I went with Silverstone 1500w units, which performed very well given the environment.

It would be awesome if this os gpu miner could be used on the new Polaris cards (480/480x) given their respective TDPs.....

GPU mining will always be relevant.  Maybe profitable, maybe not.

CPU mining is what is truly dead.  

The 290/390/290X/390X must be undervolted to be profitable, period.

When i was mining, i used the Stilt's modded bioses.  He had managed to disable bits and pieces of the chip that were not necessary for mining.  I remember my 290s being right near 200w power usage @ stock clocks / volts / 70c max temps.

I also recall that the bios repo was hard to get at, but perhaps enough google fu can resurrect a link for them.

@joblo, thanks for the corrections on the pcie x1 vs. x16 power delivery specs.  Correct information is what we want out there.

@Amph, you're right.  That's why i mentioned that using powered risers is really a must on "any card that takes more than what the x1 pci-e slot/ribbons (75w) + its pins are rated to provide."  If the rig is running a bunch of GTX 950s or R9 270s then fine.  OTOH, a bunch of 280Xs, 290s, 290Xs - that's playing with fire, literally.

Powered risers seem like a pain to hook up/use, and possibly even negative in light of the ROI question - but why take the risk of stuff burning up?

I don't mean to derail the thread here, but i feel this question of unpowered vs. powered risers is pertinent as a tertiary topic here!

Bad advice @"if you have more than 6 cards, you need powered risers".

Always use a powered riser on any card that takes more than what the x1 pci-e slot/ribbons (75w) + its pins are rated to provide.

Manufacturers expect these cards to be used in full x16 slots (150w) and as such place the appropriate x4/x6/x8 pins on them.

That extra 75w has to be made up elsewhere, and if you're using anything more powerful than a R9 270/GTX 950, there's a good chance that extra power is gonna come through the pins / pcie slot.  Expect fire.  And sparks.  Lots of sparks.  Powered risers are usually not even more expensive than unpowered risers most of the time.  Be safe - this is your investment(s) at stake here.

An unrelated FYI: the one thing you do want to make sure of is that you do not overload any of your 5v lines if you hook your risers up to them (molex / sata connector etc).

You'll be limited in the end by the OS card limits AND the make of card you're using (AMD or NVidia).

With Windows, it's usually 6-8 AMD cards (see lbr's AMD driver mods - tip him, plx) 

I have seen higher limits with *nix OS kernels, but that's with some serious hackery.

NVidia cards i am not sure about given my lack of experience with them and mining.

Interesting review.

I'm sold that it's definitely a working X11 ASIC device, but the engineer in me would tell anyone that this device still needs multiple design enhancements to make it truly mass-marketable.  The key here is to see if Pinidea will/can engineer a more robust design that takes into account reports of vulnerable pins, connectors, legs etc.  If they do push out new units with those fixes, we might be on to something here.  

Good start.    I am glad to see that they understand the need to push out units ASAP to the community in order to prove themselves.

That thing in the video looks nice, actually...but where's the actual proof of mining? 

I want to see proof of on/off functioning, pool connection, hashing, work units completed, sent etc.

Pretty much.  This ain't something you cook up in your own lab.

That review page still looks scammy as all hell. 

It's a good point to make about the market cap for coins as well.  Who is going to spend the potential millions to build ASICs for algorithms that drive weak coins that have no real future outside of pump n dump schemes?

 

That quick purported ROI is always the hook.  

Remember BFL, Alpha-T, GAW etc!

Looks scammy as hell.  Their 5 second videos also look terrible.  Would not give a penny to them.

All of that aside, there's always been rumors of Xxx asics out there for a good long while now. Occasionally you'd see miners with astronomical hash numbers pop up on pools here and there.  I would not doubt at all that enterprising individuals (or companies) do possibly have Xxx capable asics, but for end users you need a company that can actually not just deliver their product but ultimately support it.  Fly-by-night operations typically can hardly do the first, but almost never the second.  

I would also consider the scenario where there's a tidal wave of Xxx ASIC devices about to hit the market and that these individuals know this and are selling off their personal stash of miners because they know full well right now is the best time to get max profit on their devices.   Xxx stuff is already marginal as it is, and the astronomical difficulty hikes that accompany ASIC invasions means that little window of ROI is effectively closed even before anyone does get their Xxx ASIC device.

OP, reset your HSF.

Check for good contact of the HSF to the actual chip, and ensure that there is not too much thermal material used.  The application of the thermal material should be literally as thin as a credit card or thinner.

Also, try not to run your fans @ 100%.  You'll blow their brushes out.  Run at no greater RPM than say 80%.

Hey hey, Claymore! 


Do you intend to consider Polaris support for your miners given their purported low wattage / high performance?

What a gem.  Totally sigging this.

Is there actual evidence that the named in this crime is actually escrow.ms on the forums here?

Would be nice if this post was stickied.

Elio, perhaps you could post that irc room you put up?

It would be an efficient way (for those who use IRC) to drop in and message you about the site.

Protip:  Use ctrl + f (same time) to pull up your browser search window (use it) to see if a scam link has already been posted.

Of course you'll need to be on page 1 of this thread.