Topic: My second ZEC + XMR+ ETH thread builds info links thoughts and photos. - page 93. (Read 148001 times)

That is why I was not nasty I thought you may have a small rig as
 under 60 mh does take close to 20 days for payment.  Which is close to the all or nothing you mentioned.

If the wait is over a week I would use ethminer over ethpool.


But I do like to watch the miner march up to the top.  Always with the chance of an uncle.
I now sold off nine gpus and went from 630mh to 420mh so I will need a little more time then two days to get to the top.

I run one card per string using molex directly connected to the riser, no sata connector between because they tend to get hot and melt. My cables dont even get hot this way.
I do this on my 470s + 480s rigs.

What is the brand of 470s do you have?  How did you OC them?  I am getting 20Mhs with my MSI RX 470s.

the cards may draw up to 75 watts per molex, so two would be 150 watts per string. this is generally what is considered the max for a string. so 4 cards, two per string with the molex connectors. for more cards you can use a sata to molex adapter but again only two per sata string.


each card needs the molex and all 6+2 sockets filled.

some motherboards also have a molex socket on the motherboard, probably near the slots (gives more power for the slots) but i dont think your motherboard has one.

I did want to clarify something you mentioned before about the 4-pin molex/2-per string comment. I just inventoried the cables that were included with my PSU and I have 2 with molex connectors... 1 has 3 and the 2nd has 2.  So, what you were saying is to ONLY use a max of 2 per string, correct?  This should work fine since I will at max have 4 off-board cards, so I will just leave the 3rd molex empty on the cable that has 3.

The other thing that I was wondering about was the 8 pin (6+2) power cables that plug into the top of the GPU's. For instance, I know that I certainly need to connect this 8-pin to my on-board GPU in slot #1. But, will the other 3-4 GPU's connected via the USB x1 to x16 adapters also need this 8-pin power connected?  If both these and the molex are required for each of the off-board GPU's, will this increase to total power draw per card by a considerable amount?

The thing is that i dont think the cards are pushed that much harder.
My 470s have fans set at 55% holding around 70 degrees celcius @ 27.5Mhs (Mem oc to around 1950Mhz)
Warranty is no problem, i have got several gpus replaced after sending them in with custom bios onboard trough the years.
My rig is rock solid and have been going for over a month now with custom roms. More 470s on the way, will stop at 20 cards in total/580Mhs

I don't like to push my cards that hard.

I think stock settings are safer.  But I guess overclock could be okay since the cards have warranty.

Custom roms should give you a nice boost to around 480Mhs, thats alot of pretty much free hashrate.
My 16 cards are doing 465Mhs @ ~2900w

Divesting already?! Weren't you just building last week? Consolidating rigs?

Not sure why you would write something nasty when I just asking why you preferred that pool over a "little bit everyday" as opposed to a "nothing for days then a big chunk". Of course your answers explains it well enough.

I was mining on that pool with my small rig, but waiting 20 days for a payout was just not doable  

So, can anyone recommend a good x16 to x16 USB powered adapter/riser?

  I could write something nasty  but the    the truth is it is not all or nothing.  It simply adds your hash marks up and when you did enough points that you should hit a block it gives you the next block. Frankly if you are getting a block every 40 to 50 hours time after time and once in a while you get a bonus uncle it pays better then any other pool.
  If you have 200 mh it takes about 5 or 6 days

I wanted to chime in again and firstly thank everyone who contributed feedback to my first mining rig build. So, I finally got my heatsink, installed it today along with the CPU, RAM and the 1st MSI 470!  I have yet to do anything with the power supply/cables since I wanted to get the layout built and tested before that final step, but everything including the test bench assembly and mounting/hooking up the SSD & Optical Drive went well.

So... once I realized how absolutely HUGE these GPUs are compared to the MoBo, I now totally get when Phil and others stick to a 4-GPU build lol    I was able to plug in the first 470 into PCIe3 x16 slot #1 no problem at all (no blockage issues, etc).  However, after plugging in GPU #2 into PCIe3 x16 slot #3 (slot 2 is PCIe2 x4 slot, so i skipped that for now as I understand that will need a riser cable), I realized that it actually blocks PCIe slot #4, which is the short PCIe2 x1 slot. From Phil's previous advise on risers for this board, I purchased this PCI-E 1x to 16x riser adapter cable:

https://www.amazon.com/gp/product/B01CU1U2XG/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

The first problem is that the short PCIe 1x slot is blocked. Only an extremely low profile plug/adapter could possibly fit in there underneath the GPU.

The 2nd problem is that I can't even figure out HOW this adapter is supposed to work because even if there were space above this slot on the MoBo, there is nothing in the product above that could fit in this slot. Aside from the converter board itself there is only a 4-pin molex to wide sata power cable (i don't even have any of the wide sata slots on this Mobo, only 10 regular sata) and also a 2-ended USB cable.  Am I crazy or is this adapter even meant to plug into that 1x slot at all? Either way, i cant figure it out so would appreciated some advice.

GPU #3 inserted fine into PCIe slot #5 (the 3rd and final PCIe3 x16 slot). Unfortunately, the GPU blocks a bunch of headers/jumpers, but it seems like possibly none of these will be required for this build (BIOS/CMOS stuff, COM & TPM headers, front panel audio, & USB headers).

GPU #4, which arrives tomorrow would therefore have to go into either slot #2 or slot #4 (already described the issues with slot #4 above, so not even sure that is usable at this point).  Slot #2 is PCIe2 x4, so I got this adapter/riser cable:

https://www.amazon.com/gp/product/B00H8VVD00/ref=oh_aui_detailpage_o04_s01?ie=UTF8&psc=1

But, although the short end of this cable fits within slot #2, there's a lot of empty space since the adapter pin section is shorter than the overall slot length.

Bottom line is that I've never used this kind of risers/adapters before so I figure either there is something I am missing, or, i simply bought the wrong adapters.

As always, any feedback is appreciated!

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157543

The 2nd problem is that I can't even figure out HOW this adapter is supposed to work because even if there were space above this slot on the MoBo, there is nothing in the product above that could fit in this slot. Aside from the converter board itself there is only a 4-pin molex to wide sata power cable (i don't even have any of the wide sata slots on this Mobo, only 10 regular sata) and also a 2-ended USB cable.  Am I crazy or is this adapter even meant to plug into that 1x slot at all? Either way, i cant figure it out so would appreciated some advice.

Bottom line is that I've never used this kind of risers/adapters before so I figure either there is something I am missing, or, i simply bought the wrong adapters.

  I could write something nasty  but the    the truth is it is not all or nothing.  It simply adds your hash marks up and when you did enough points that you should hit a block it gives you the next block. Frankly if you are getting a block every 40 to 50 hours time after time and once in a while you get a bonus uncle it pays better then any other pool.
  If you have 200 mh it takes about 5 or 6 days