Topic: [ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX] - page 329. (Read 3426936 times)

http://gigaom.com/2014/06/18/intel-will-offer-a-customizable-chip-to-keep-data-center-clients-happy/

Interesting development or not? I know nothing about FPGAs, except that they're the third step in the mining device chain, if I'm not mistaken (CPU -> GPU -> FPGA -> ASIC).

6 x 750ti rig, on pro bt h81 here, just plugged the two molex(from the same psu) and then the 6 risers, all worked good from the first try, just some time needed for windows to search for the drivers

best super cheap MB for me.....

Thx for the info... 

If anyone is interested I have a ton of coins from his first launch.

I just finished building a 6x 750ti mining rig on Asrock H81 BTC Pro mobo. 6x USB risers were used, 2 of which were the cause of early instabilities (read: numerous crashes and bsods).

So for system instability, the convenient culprit are ur risers (and why not, all other components in ur miner are vetted by quality control measures in big factories; meanwhile, risers are most likely handmade in a sweatshop in China).

My simple advice: attempt to isolate which risers are giving u problems and have them replaced.

Afterward u should have a bedrock stable miner -- quick test: only OC'ing beyond the limits of ur GPU's capabilities should cause crashes.

Cheers!

Theoretically, yes. But then you should probably plug in the mobo power connectors to boost the pci power too.  Then you also run into the inferior quality of long ribbon risers and potentially risk a short.  I personally would go with the usb ones since then the power won't be dependent on the pci slots and you won't have to worry about overloading anything internal in the motherboard.

I have used powered ribbon risers though, and as long as you inspect the solder work beforehand and are very gentle with them whenever you're doing any work on the rig, they should work well.  Even in that case you have to be careful though. Any wrong moves or a sketchy solder joint could send power back down your ribbon to the board.

In the end, I think they all will work fine if you don't get any bad parts and have a powerful power supply, but there is less risk in my mind when keeping the power draw relationship between the gpu and psu as much as possible and avoiding overloading the mobo by powering them all from there.  Saw one too many pics of burned boards near the 24pin i guess 

... and if you have all GPUs with 6 PIN power connectors, can we use ribbon risers instead?

Would be nice to eventually migrate all of the algos from cudaMiner to ccMiner (or the reverse) so we can have one program to mine them all.

There shouldn't be any need for those mobo molex connectors to be connected if you're using all usb risers.  Not sure why yours wouldn't run without them.  I have 2 rigs on version 1 and 2 of the H81 and they both go at full speed with no problems and I'm not using the connectors.  I made the mistake of buying all my Ti's with 6-pin, so I have wires everywhere, but no power is going to pci since all but the x16 slots are usb risers, which don't get the power from the slots.

I think some people might have weak power supplies or are trying to power cards with no 6 pin connector off of 1 accessory line from the power supply.  Do NOT power more than 1 card with the same string of molex or sata connectors if you're using cards without a 6 pin.  Even with 6 pin, only power 2 at max.  Those lines can safely power 75w, but much more and you're asking for trouble.  That's why I think some people's cards drop once they start mining.

I've also noticed that running this board with mismatched ram (4gb+2gb) doesn't seem to work that well, so I've just put 1x8gb stick in each one and they have been fine since.  I don't think I was able to get all cards to stay working with 4gb before on Cudaminer.  With ccminer that has probably changed, but this was a while back.  They have been rock solid for months the way they are configured.  FYI, both have i3 processors to help keep cpu utilization down as well as save power versus a celeron that would probably be using 10% more at all times.

the first coin exclusively designed to run on amazon EC2. Nice.

With that amount of RAM needed it sounds like it's designed to be low and mid-end PC resistant too. 

15GB RAM required ^^" Lolwhut

ShinyCoin from one who claimed to be son of Sunny King, Sunny Prince, LOL.
https://bitcointalksearch.org/topic/annshc-shinycoin-first-ever-ramhog-algo-powpos-no-asicgpu-whitepaper-655789

Designed to be ASIC and GPU resistant.

I wonder whether our Christian has interest in it? 

Sorry my bad. No need to create a coin war in Christian's thread. For disclaimer I own the same amount of XMR and QCN but I still don't understand XMR mania and maybe never.
Everyone has his own opinion.

Regards,

I respectfully disagree AizenSou, for way too many reasons to begin listing here, and as I really don't want to have my posts taking part in any sort of 'coin wars'. If you want further details to why I support XMR, say so, and I'll be happy to explain my motivations. Otherwise I'm keeping the details to myself as I'm not trying to promote coin A or B in this particular thread (for that we already have plenty of speculation threads).

~ Myagui

 

Forget the XMR mania. Try to see QCN thread. The dev works even harder than the whole XMR team and QCN always has the newest features from which XMR want to copy back like GUI wallet.
Remember, the main selling point of XMR is the first Cryptonote which obviously wrong. XMR is not the original Cryptonote coin, Bytecoin is. IMHO, XMR offers nothing better than QCN. The only reason is XMR backed by a lot of big players in crypto.

Of course I need to plug two molex connectors to the board otherwise the board autorestarts itself if you run ccminer/cudaminer for every algo.
I have 6 of this board and only two of them still giving me trouble. The worst algo is JPC in my experience.
I use for all card USB power riser from same brand, but I notice from those Chinese quality you can't expect much.
I still have found out the reason for these 2 trouble boards, but from my test I can conclude that ccminer/cudaminer works fine.

yes. you can make shortcut for 3 cards only.

I got the auto restart thing working! 

Runs for 30 mins, closes and waits for 1 min, then repeat:

i need to OC only 3 cards rather than four, it is possible?

i need something like --gpu-engine xxxx