What is the recommended clearance over the K-16 board for a chassis?

Thanks again.

I know there has been talk about watercooling with the K16's , but has anyone contacted a company for prototyping a waterblock?
If this has been a topic beaten to death, im sorry, just been out of the loop for a few weeks

Danny

That sounds good. There are two possible versions of the PCIe connector to use. The "Right Angle" one feeds power off the back edge and is only 10mm high (plus a small latch tab which isn't indicated on the drawing). And then there is a "Vertical" version where the cable comes out the top. This one needs bending radius space. If typical yellow/black 18ga. wire is used then that shouldn't be too much and I think 50mm works for that situation as well.

The large capacitors are also 10mm high, and if multiple boards can fit side by side then a Klego connector would be about the same but with the female joiner attached would be a few mm taller.

How much power would 16 K-16s require and would that need to be supplied by multiple PSUs?

(Note that I have not personally confirmed any of these figures)

Stock, each chip draws 1.86W. So that'd be 16 * 16 * 1.86 = 476.16W, well within the range of a single power supply.

However, you expect some overhead for the board, and most people are probably going to overclock. That said, a 1kW power supply should suffice for 16 boards.

Found these splitters only 98 cents..http://www.outletpc.com/jp1932.html

C43-266 is the reference ID range, ie. from C43 up to C266. There is 16 ASICs and each one has 12 0.47uF caps.

12 * 16 = 192.

Oh, and due to past changes, some were removed leaving holes in the number range.

http://www.digikey.com/product-detail/en/74AUP2G02DC,125/568-9186-2-ND/1300786

They have Cut tape and digi-reel quantities, minimum order of 1 available.

Ok. I don't want to be rude or mean but... if you don't know which part it is I'm programming for you then please do not build this yourself. There is a reason I've stated this is this is for "hard core DIY" builders. It's not even that hard core, but I do expect you to know which chip is being programmed. At this time, that is, after 3 months of ongoing forum discussion and pre-amble if you don't have PIC chips then you won't likely be getting them soon except via me (very limited stock coming next week) or someone building for you. A week or two ago you may have found all these parts but with everyone buying them up for production it's not very likely now.

Several of the parts on that list are in stock at Mouser.com and they are a very easy place to buy from. Check there first, then check Digikey, then check Newark or element14 and so on. Some you won't find but except for 3 probably the rest are still available or easy to substitute for.

If you have Avalon chips and want them assembled then contact sensei - he is doing assembly using my boards. The others are doing pre-made boards with their Avalon chips.

The PICs you won't find anywhere right now. Earliest delivery quoted is Aug. 15th and Microchip have been pushing the date back since June as mfr. keep buying them before the distributors.

The Dual NOR gates are available still at Digikey.
The USB conn. is available at Mouser, 4577 in stock.
The ferrite bead is available at Mouser.
The PCIe connectors were in stock a few days ago but seem to be gone now. You can get by without in a pinch by using the same 6 pin non-PCIe version, or just soldering the wires on the pads made available at board edge.

The pin headers are generic - many brands are out there and you can get by without. But in a pinch there are quite a few on ebay.

The capacitor is in stock at Mouser but if you can't find one then try the next voltage up same package size, a different brand, or a different temperature rating. It may cost a few pennies more but they are out there.

The first 3 on the list are hard. I bought a couple dozen for myself just a couple weeks ago but everything has changed since then and the board assemblers have swooped in and bought up thousands. You're looking at table scraps for a while. Keep checking because sometimes the PICs show up briefly. I bought a few hundred PICs just two days ago.

It reminds me of when we were watching Newegg for the ATI cards two years ago.