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201  Economy / Computer hardware / Re: [WTB][To Canada] GPUs, H81 BTC Pro Mobo, RAM, CPU, kits, USB Risers, etc. on: May 01, 2016, 11:05:46 PM
I have a Sapphire 280X 3G for sale. PM me your offer if interested
202  Economy / Computer hardware / [WTS] Sapphire Radeon R9 280X 3GB [Taking Offers] on: May 01, 2016, 10:53:14 PM
Hi Guys/Gals,

I have a used but working Sapphire Radeon R9 280X 3GB for sale.  Taking reasonable offers from anyone interested.

The specs for the card are available at: http://www.amazon.com/Sapphire-Version-PCI-Express-Graphics-11221-00-20G/dp/B00FLMKNE0

See my feedback. Have sold multiple GPUs in batches before.

203  Economy / Computer hardware / Re: [WTS] Powered Risers - PCIe 6 pin & Molex & 6 pin to 8 pin PCIe on: April 19, 2016, 11:32:14 PM
PMd for another order but got no response.  Are you still selling risers?
204  Economy / Computer hardware / Re: [WTS] 1600/1300/1200/750 PSUs on: April 18, 2016, 04:07:51 AM
Anymore LEPA 1600W left?
205  Alternate cryptocurrencies / Mining (Altcoins) / Re: Hacking KNC Neptune / Jupiter / Titan miners back to life. Why not? on: April 14, 2016, 08:24:15 PM

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

Are you giving up  lightfoot?  Tongue
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.

I understand, but I will still keep the faith for that troubled one.

Thanks for repairing that last cube it honestly now runs even better than when it was new from KNC.  Grin
He(the cube) has been reunited with his other bother and sister at last.
206  Alternate cryptocurrencies / Mining (Altcoins) / Re: Claymore's Dual Ethereum+Decred GPU Miner v1.1 on: April 13, 2016, 06:34:45 PM
Future plans for linux?

Probably never, none of his releases ever go for linux.

You need to install Windows.

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.

Sounds good. Thanks.  Using the Decred calculator( http://decred-calc.cryptohub.info) and the GPU hash rates from the list.  Is it me or Decred according to the calculator will double profits from mining when combined with ETH?
207  Alternate cryptocurrencies / Mining (Altcoins) / Re: Claymore's Dual Ethereum+Decred GPU Miner v1.1 on: April 13, 2016, 01:43:04 AM
Future plans for linux?
208  Economy / Computer hardware / Re: [WTB][To Canada] GPUs, H81 BTC Pro Mobo, RAM, CPU, kits, USB Risers, etc. on: April 13, 2016, 12:03:44 AM
+Bump, nobody has some cheap dusty H81 BTC Pro lying around or similar?

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

I came looking to see if you had cancelled your buying spree on the same observation.   Cheesy 
209  Alternate cryptocurrencies / Mining (Altcoins) / Re: Hacking KNC Neptune / Jupiter / Titan miners back to life. Why not? on: April 11, 2016, 10:25:21 PM

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

Are you giving up  lightfoot?  Tongue
210  Economy / Computer hardware / Re: Gigabyte Gaming Graphics Card GV-R938XG1 GAMING-4GD on: April 08, 2016, 09:50:15 AM
Got a few cards that I had ordered earlier. He does what he says
211  Economy / Computer hardware / Re: [WTS] Powered Risers - PCIe 6 pin & Molex & 6 pin to 8 pin PCIe on: April 08, 2016, 02:29:13 AM
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..




$35 shipping included for 6 of the above?
212  Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com on: March 05, 2016, 02:35:06 PM
Posting a Titan firmware for the Beaglebone soon, works for all KNC miners Jupiter, Neptune, and Titan.... Keep an eye out in the next few days...
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.



Why don't both of you collaborate ?
213  Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com on: February 29, 2016, 10:47:41 PM
Question for ya all....

My Titan keeps causing my PSU's modular power connectors to eventually melt after like months and months of steady use. I think it may be because of crappy modular cable connectors n connections to the PSU.
The titan side of things - including the Y adapters remain in good shape.
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+?

Sad  Cry . We honestly do not in retrospect
214  Economy / Computer hardware / Re: [FREE] S7 Coupons x 7 on: February 28, 2016, 05:51:38 PM
akiratek
215  Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com on: February 16, 2016, 08:46:10 PM
is $2800  - $300 a good buy for a titan that hashes at  340 mh/s ?   
216  Bitcoin / Project Development / Re: I want to start a Mining Pool on: February 14, 2016, 04:23:12 PM
You can also try NOMP

https://github.com/zone117x/node-stratum-pool
https://github.com/zone117x/node-open-mining-portal
217  Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com on: February 14, 2016, 02:45:53 PM
Any pointers on repairing burnt power connectors on cubes ?

Here is the best, quickest, and easiest way to deal with a burnt connection in my opinion. It also allows about 3/16in additional contact between the power connector and the pins. Sorry its a bit of a hack. and you must absolutely be sure to put the connector on clip side up, ground wires up since the will not be a receiver connector on the board anymore.

The burnt connector will be brittle, and easy to break up with a pair of side cutters. Do it in small pieces until just the very bottom is left. Then pry up gently with a screwdriver to dislodge the 2 plastic retainers and it will slide right off. Then take a piece of 220 grit sand paper to clean up the pins. Clean everything up and carefully push the power connector on the bare pins while using a flashlight to make sure its on right. It will now go further on the pins making a better connection.  






Thanks! Very good hack indeed
218  Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com on: February 13, 2016, 02:42:36 AM
Any pointers on repairing burnt power connectors on cubes ?
219  Economy / Computer hardware / Re: [closed] jorjito's computer shop back in biz *UPDATE JANUARY 28* on: February 07, 2016, 10:51:23 PM
Hope rehab went well.  Please check your PM
220  Economy / Computer hardware / Re: [WTS] 2.5 GH Titan Farm on: January 16, 2016, 02:39:58 PM
I'm not an ebayer, but I can defer to mindtrip on the many ways ebay sucks balls and can be e-noying. I've got more confidence in OGNasty arbitering on behalf of the buyer and the seller for a fair shake.

I  would prefer to buy on the forum too using OgNasty as escrow.  But pointed it out since I also use Ebay and have had success with buyer protection. So it is not as risky as you think it is for the buyer/s

All the best with the sale. 
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