There is no spec for the "max wattage" per 12V lead.
If you can feel any noticeable heating of your 12V leads, you
are already on the edge.
No assurance that a good brand PS guarantees anything.
My new 850W Corsair has been my least reliable.
If you're building a world-class datacenter, you can do a statistical analysis,
but for a desk-full of hardware, it's a mistake to draw conclusions
from so few datapoints.
Generic PCI-E splitters are light gauge and will overheat
and/or fail. Most ATX PCI-E leads are longer than necessary, so if you
can scrounge up the extra connectors (from other donor power supplies),
you will get better performance if you shorten the leads to the minimum,
and soldering together a pair of PCI-E cables for each Cube. Or, cut up a
useless PCI-E splitter and solder that directly to the ATX supply PCI-E leads,
making the splitter leads as short as possible (i.e. 3-5 cm)
I got 1 cube as well from Canada .
This is bad product.
Clicking from time to time.
Random resets, with clicking constantly noise, and second red light blinking.
Everything was fine in the first 2 weeks, now even on low clock i got issues from time to time (hour to hour).
my powersupply is fine 850 modular,good brand.
What is the max wattage or amperage per 12v lead on that PSU?
Are you using two PCI-E leads or molex to PCI-E adapters?
Have you done the standard troubleshooting steps?
Is the silver label still on the front of the system fan?