Ok, thanks. I tried that already, but my power supply did a weird stuff. something like start/stop/start/stop in a second.
But maybe, i did not maintain a correct contact with the wire. I did not know that I have to keep the 2 pins together. I will try it again.

Does someone use this motherboard ? Is it the correct way to boot it ?
Doing my investigations, I read people use server power supplies, instead of classic PC power supply as I do.

And regarding the 6pins connectors all around the big card, should I plug them all ? (9 on the longest side, 8 on the small side)
Is a molex adapter (molex>6 pins) with only black (ground) and yellow (12v) wires (no red 5v) is ok ?
Same question with sata>6pins adapters ?

Thanks a lot

Hello,

I need your help. I bought this 8 GPU motherboard :
https://www.ebay.fr/itm/8GPU-DDR3-SATA-Mining-Motherboard-8xPCI-E-Extender-Riser-Card-For-For-BTC-ETH/153069705789?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649&autorefresh=true

I previously used a H81 pro btc, with a gold Enermax Power supply.

So :
I connected all 8pins in the smallest side of the big board
https://preview.ibb.co/j0XLA9/DSC_0037.jpg

I connected the 6pins in front of the blue PCIe where the motherboard is plugged. I used the 8pins processor connector from the Enermax power supply for that.
https://preview.ibb.co/gA1rHp/DSC_0036.jpg

I have to notice that the big 24pins ("MAIN" connector) from the power supply that goes usualy to the motherboard, can not be plugged in. So I don't understand how the motherboard could start when I power on the power supply...
https://preview.ibb.co/eennq9/DSC_0040.jpg


> Do you know how to power correctly this kind of 8gpu motherboards ?
> How to make it start ?

Thanks for your help !

@Senseless

Do you have any idea about your potential improvements in Cryptonight or Lyra2z hashrate ? Is it more about x1,5 / x2, or do you expect something really bigger (x5 / x10 / ...) ? Just to have an idea.

Thanks !


-- personal message --
@Wiim
J'ai essayé de t'envoyer un PM, mais tu ne reçois pas ceux venant de newbies. Contacte moi !

Great Congrats for this first release !

As for now, I'm hesitating. It's not so gamechainger versus AMD gpus rigs.

14Khs on Monero / Electroneum is great, but 6xRX580 can do 20usd/day on scrypt or Lyra2z too.

So I ll follow your next improvements with attention.
Do you have any idea about your potential improvements in Cryptonight or Lyra2z hashrate ? Is it more about x1,5 / x2, or do you expect something really bigger (x5 / x10 / ...) ? Just to have an idea.

Thanks !

Several questions :

1. Approximatly, how many time do we have before the effective sales ? some days ? week ? half a month ? more ?

2. DDR4 memory : if we already have a 8 or 16 Go DDR4 memory, can we use it instead of buying the global package ? If yes, no matter the DDR4 frequency ?

3. Is 1 FPGA enought ? Do we need several FPGA, depending on the algorithm used ?

Hello,
I'm really interested with your work on FPGA Mining.

Will 1 FPGA be enough?
Do we need several FPGA, depending on the algorithm used ?

Thanks

Bonjour

Un avis sur ce genre d'extendeur, après test ?
Merci

Ok, thanks for your feedbacks.

I have some Colorful RX580 GPU, only 1 month use, but it looks ok, very good hashrate after bios mode and OC (30.5 Mh/s).
I would have think their motherboard would be correct too, but ok.

up ?

Hello,

I'm looking for buying a new motherboard.

I saw these cheap options on aliexpress and Ebay :

- Colorful H81A BTC V20, 85usd on Aliexpress : https://fr.aliexpress.com/item/COLOR-Carte-M-re-H81A-BTC-V20-Mineur-ATX-Conseil-LGA1150-Socket-Processeur-H81-Carte-M/32849901817.html
This brand is on Gearbest too, they produce GPU (RX, GTX 1070/1080/ti)

- the cheapest 6 PCIe motherboard I found in Ebay, named "703371", 60usd on Ebay :
https://www.ebay.fr/itm/H81-BTC-6-GPU-Dual-Channel-SATA-1150-Mining-Motherboard-For-ETH-Bit-Coin-Miners/323008445839

Do you have some feedback about these cards, or aliexpress/ebay no-name cards in general ?

Maybe it's more dangerous than a classic ASRock h81 or Gigabyte ?

Thanks