Cairnsmore5 Pre-Order

[NurSie]

can this shipping to China,
This card have any bitstream now?

[1714173081]

1714173081

[1714173081]

1714173081

[1714173081]

1714173081

[yohan]

can this shipping to China,
This card have any bitstream now?

Yes can ship to China.

Bitstream announcements coming shortly.

[SigiSinatra]

can this shipping to China,
This card have any bitstream now?

Yes can ship to China.

Bitstream announcements coming shortly.

Don't send it to China. They will copy it and sell it cheep.

[evlo]

Sure, they will copy aria10 and mass scale produce it - where?

[shasha12]

Are you accepting pre orders or is there a potential for a group buy?

[yohan]

Are you accepting pre orders or is there a potential for a group buy?

There is a new pricing structure now in place that has a small discount for numbers it's slightly more expensive(5-10%) in low numbers that the early adopter pricing mainly to reflect addition costs we added to the design at various points in the design process.

Cairnsmore5 ex-works pricing (excluding VAT, sales tax, shipping, insurance etc.)         
Purchase Quantity   USD $ Price   GBP £ Price   Euro € Price (monthly  changed exchange rate)
1-9   $1,750.00   £1,350.00   €1,620.00
10-24   $1,730.00   £1,330.00   €1,600.00
25-49   $1,700.00   £1,300.00   €1,560.00
50+   $1,680.00   £1,290.00   €1,550.00

We are just starting to ship the early adopter preorders and generally production is picking up now. If you want to order email cairnsmore5@enterpoint.co.uk and we will send you the formal offer document.

Nobody as yet has talked about a group offer and previously flat and now near flat pricing structure don't make much sense as a group buy.



Update on bitstreams - Amoveo and Denarius(Tribus) are now available. More coming soon.


Bitstream page created at https://www.enterpoint.co.uk/products/cairnsmore-5/cairnsmore-5-bitstreams/ . More coming on this shortly.

Updates for the Controller Linux subsystem and various other tools now linked off the main product webpage https://www.enterpoint.co.uk/products/cairnsmore-5/ .

[yohan]

Is dedmaroz a part of your Bitstream development team or is he a third party and is he supporting this specific board?

Yes dedmaroz is working with us. He has said in public that he is only workng on 2 boards one of those being Cairnsmore5. We also have 3 or 4 other developers working with us as well and once our team has reduced load we will be doing something in that area as well. 

[yohan]

Seems like you have quite the power expectations from how the board looks but how much power are you expecting to go through these cards with only dual pcie? I don't doubt your cards living, especially with the liquid cooling as standard but I think there will definitely be foolish people melting some power cables.

Amoveo and Denarius bitstreams are running roughly at about 200W in the current versions. I think with add-on modules kept reasonable I think a max power of maybe 300W is to be expected over all bitstreams. We have run 200W off a single PCIe cable (good quality PSU) but I would not recommend it. Using twin PCIe keeps the cables in the comfortable zone and that doesn't meant using splitters. Use proper off the PSU cables. We have seen splitters melt in the past and nearly go on fire.

Thermally it is probably just about possible to run with air cooling at 200W on CM5 but there are noise and efficiency aspects to consider. Like many performance FPGAs and similar the Arria10 we use has a thermal runaway aspect which means the hotter it gets the more power it takes. Doesn't necessarily mean yet get more hashing but it certainly drops efficiency. With the current liquid cooling coldplate typically we get the Arria10 (2off -200W running) sitting 35-45degC above the ambient temperature that the radiator sits in. So with radiator in a 20degC room the Arria10 die might be around 60-65degC. That is comfortable and good for Arria10 lifetime and reliability. I'd expect an air cooled solution to be more like 90-95degC. Apart from efficiency running at 90-95degC that could be a lifetime limiting factor. At 60-65degC we expect a very long lifetime on Arria10.

Noise on a liquid cooled setup is good. I can stand next to a test rig with 10 boards hashing and talk in a normal voice. That's with radiators and pumps next to boards and not semi-remote outside which can be even more thermally efficient if it is colder outside. With a air cooled setup of the same numbers of boards I would be wearing ear defenders and shouting at people to communicate.

[yohan]

We are now testing radiator solutions for the first rack solution which will be between 4 and 6 boards in a 6U 19" rack together with radiator, pump and power supply.

We have a choice of connections to the coldplate. The standard is 6mm stems shown below.

[yohan]

We have found an Ethernet bug that appears with some but not all gigabit hubs/switches. This is purely at startup and there are a number of ways to get past this initial startup issue. We are posting one of these on the main product webpage https://www.enterpoint.co.uk/products/cairnsmore-5/ . Once the gigabit link is up there are no further issues. There are no issues with 10/100 hubs and switches.

A work around is available now on the product webpage. We also noted that we don't tend to have the issue with D-Link gigabit switches but do see it with Netgear gigabit Switches. Others we don't know yet.

[yohan]

Amoveo algorithm is now available by downloading our latest microSD image at https://www.enterpoint.co.uk/products/cairnsmore-5/.