It looks like I should place some 6-32 holes on the board for standoff. I hate to see it hang like that. On the next rev, I will provide an update!
-Optim
yeah it would be good to have it.
I can not turn on side since the psu needs to be cooled . I have some rubber that will do.
the low power loss is very impressive 12.20 volts at junction to 12.11 volts at s-9 pcie jacks.
Phil,
How goes testing? I have finally straightened out part of manufacturing for the 4ks. My initial testing looks promising. I will be sending one of these to you as soon as I polish everything off and trust the design. So far, current sharing looks good and balanced between both supplies around 2500W.
-Optim
Sweet I just scored 4 dps-2500 psu's I was going to ask about the 4k board. today.
I also picked up a few cables from :
Itop
https://bitcointalk.org/index.php?topic=1535584.0my goals are to fully compare
your 2k board
your 4k board
j4bberwock's 2k board
j4bberwock's 4k board
using the dps 2500 psu's
Also will compare
your pcie cables
j4bberwock's pcie cables
and Itop's pcie cables.
So in 92 f temps and the solar array stack is 97f your 2k boards run cooler then j4bberwock's 2k board.
now to be fair to all none of the gear really pushes a psu.
my max watts is 1300 at the meter (ac) on a dps-1600 psu using your 2k board
I also do 1300 watts at the meter (ac) on a dps-2500 psu using your 2k board
I also do 2600 watts at the the meter (ac) on a j4bberwock 4k board and 2 dps 2000 psu's
and lastly 1300 watts at the meter (ac) on a j4bberwock 2k board and 1 dps=2000 psu.
on none server psus I do 1200 watts at the meter with a evga 1600 p2 osu.
plain and simple your pcie cables j4bberwocks cables and Itops cables all seem close enough
But I get better numbers head to head with your board against j4bberwocks.
I drop less voltage and I run cooler.
you can get in to arguments as to which is more cost effective since his is cheaper, but I no longer recommend his for avalon 6's as I have darkened my 4k board and my 2880 board running avalon 6's on j4bberwock boards.
Basically I estimate your boards can do 25 watts more per jack then his boards can do.
I have these 4 psu's waiting for some 4k boards from you. they came today
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2F8EzePQo.png&t=665&c=erPLUmTDcz0WIw)