Quote from: roc-noc on September 30, 2018, 09:48:34 PM

For the BCU-1525 it appears that there are 4 heatsink options and I have been asked to complete a survey to chose my cooling options.

As a group buy purchaser back in June, I m really confused on the options and what performance benefits we will see.

I ordered the $3600 USD models with RAM and "mods and alterations".

The 4 options are:

1) stock factory BCU Xilinx heatsink
2) SQRL upgraded passive heatsink
3) SQRL upgraded active heatsink
4) SQRL water block

Does my $3600 model include the #2 heatsink?

What will the mining performance variance be for the 4 different options?

Can the active air cooled units mine as quickly as the water cooled units assuming 4 or 8 cards in a standard GPU mining rack with external fan blowing?

Thnx!

You can get "2)" for free, but there is some delay. So you either get "1)" now or wait 1-2 weeks for "2)".
"3)" is "2)" with fitter powerful fan.
"4)" is a water block. You can either have "1)" shipped now and water block later, which you will install yourself and void warranty, or wait until end of Oct and have water block installed at factory and shipped with card.

"2)" can run 350-400 W with good airflow. I don't think you can cool with air the same as with water, however the difference in water is not so huge as it is for VCU1525.

The whole survey is because they got the cards before the heatsinks, so you have option to wait or not to wait for them...
All this info is from the Discord.