Topic: Klondike heatsink sourcing - page 2. (Read 11721 times)
you and your vat....tsk
subforum 
Might be good to consolidate all our various extra Klondike threads to one.
1. Casings
2. Controllers
3. PSUs and cabling
4. Firmware / Mining Software
5. Miscellaneous
6. DIY Build information
7. Pricing and sourcing of PCB, BOM, etc.
8. Heat sinks and cooling
1. Casings
2. Controllers
3. PSUs and cabling
4. Firmware / Mining Software
5. Miscellaneous
6. DIY Build information
7. Pricing and sourcing of PCB, BOM, etc.
8. Heat sinks and cooling
The price for 200 pcs batch is 3.90 EUR
In 1000 pcs I can probably fit in 3.650 EUR
Nice job.
excluded
The price for 200 pcs batch is 3.90 EUR
In 1000 pcs I can probably fit in 3.650 EUR
VAT?
The price for 200 pcs batch is 3.90 EUR
In 1000 pcs I can probably fit in 3.650 EUR
What are we looking at for pricing on these?
pm sent...
Ill be looking for around 100-200 too
Ill be looking for around 100-200 too
)Hmm, just saw the CAD pic for the K16 today. Good design, renders my above concerns mostly obsolete.
Steamboat, do you have any plans to also provide heatsinks for the Nano?
questions, comments, concerns?
With that design will you use something on/with the screws for mechanical support to help keep the heatsink in thermal contact with the pads? Perhaps like an aluminum standoff or insert from McMaster carr, or extrude aluminum there and tap a hole? Are the holes threaded already?
BkkCoins pointed some things out in his thread so the design is changing to flat, with CNC'd recesses for the PCIE thru-hole connection. This design would have connected directly to the copper w/ paste.
The holes in the center of each group of chips are tapped for a m3 screw. W/ or w/out a spring is TBD.
questions, comments, concerns?
With that design will you use something on/with the screws for mechanical support to help keep the heatsink in thermal contact with the pads? Perhaps like an aluminum standoff or insert from McMaster carr, or extrude aluminum there and tap a hole? Are the holes threaded already?
So from Avalon website the dimensions of the chips are 7 mm x 7 mm
Can you give me a link? Im in the process to find out what packaging i need to spread the asics to buyers. Till now i thought the chips will come on a roll but burnin now said he thinks they will come in tubes. I need to know this in order to order the needed packaging...
Thanks... i thought that is only for building it... i now found the pdf (https://github.com/BitSyncom/avalon-ref/tree/master/PDF) with the measures of the chips... unfortunately i dont find info about how the chips are shipped... in which form. So that i know what packaging i have to buy.
So from Avalon website the dimensions of the chips are 7 mm x 7 mm
Can you give me a link? Im in the process to find out what packaging i need to spread the asics to buyers. Till now i thought the chips will come on a roll but burnin now said he thinks they will come in tubes. I need to know this in order to order the needed packaging...
So from Avalon website the dimensions of the chips are 7 mm x 7 mm
Can you give me a link? Im in the process to find out what packaging i need to spread the asics to buyers. Till now i thought the chips will come on a roll but burnin now said he thinks they will come in tubes. I need to know this in order to order the needed packaging...
OK this is what I would do. So from Avalon website the dimensions of the chips are 7 mm x 7 mm so I would opt out for individual heatsinks like this one http://www.newegg.com/Product/Product.aspx?Item=N82E16835708011 or http://www.newegg.com/Product/Product.aspx?Item=N82E16835708012. The first one is 6.5mm and the latter is 10mm. They are designed to cool video car memory so I think they would be suitable for avalon chips.
How many fans can be powered? Check the board design... looks like a single 3 pin for 1 fan right? So doing that might not be ideal. I agree with the 1 larger heat sink properly mounted will give you the maximum heat dissipation. Raised or not let us see what BKKCOins comes up with in his tests. I will be sending him 4 heat sinks for testing. Ignore the oversized heat sinks I am shipping as BKKCOINS will mod them to suit his plan but you can use the dimension and spacing for the fins to give you an idea when his test results come out.
https://109.201.133.65/index.php?topic=210635.msg2223916#msg2223916
He will mod them how he thinks and give us all feedback. I am loving the CNC idea and I hope that won't add too much to my costs here in Indonesia if your design is best steamboart. Fans need some sort of attach point right? Top down blowing directly like a CPU?
OK this is what I would do. So from Avalon website the dimensions of the chips are 7 mm x 7 mm so I would opt out for individual heatsinks like this one http://www.newegg.com/Product/Product.aspx?Item=N82E16835708011 or http://www.newegg.com/Product/Product.aspx?Item=N82E16835708012. The first one is 6.5mm and the latter is 10mm. They are designed to cool video car memory so I think they would be suitable for avalon chips.
This approach has been discussed before. They are not as efficient at dissipating heat, cannot be secured well, and are insanely expensive.
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