Quote from: DeathAndTaxes on October 11, 2013, 07:56:19 PM

Quote from: crumbs on October 11, 2013, 07:45:11 PM

Quote from: Bitcoinorama on October 11, 2013, 07:30:20 PM

Quote from: adrd on October 11, 2013, 07:28:37 PM

If I have corsair HX850 PSUs for my miners should I immidietly change them or should I wait for official info?

I'd personally change bro. After their reset they supply peak current without ramping for approx 30 seconds is what I understood. That pops the cap, and so far it's the PSU that is most likely to cause this issue. Most other PSU's once reset gradually ramp current.

This makes 0 sense. Are you saying that other PSUs ramp up the current over 30 seconds? PC power supplies are voltage, not current, regulated. There's overcurrent protection, but that just shuts the thing down & stops it from toasting itself.

Agreed. Either he is misunderstanding (playing a game of telephone here) or it is just nonsense to shift the blame.

Power suplies don't ramp up current.
Power supplies don't force current.
A circuit DRAWS current.
If the circuit was damaged by drawing too much current then the circuit shouldn't draw so much current.

In simple terms a supply can be a current source or a voltage source. The power supply might show characteristics of either/or given that those are not simple devices. If its design says that at a given moment it needs to provide X amps of current to maintain or reach Y voltage, it will provide that current. If for some reason it does not know the voltage has been approached or reached, it will continue to provide that current unabated until it voltage limits. Until it knows that the required voltage has been reached it could source current that could drive the voltage above the specified max voltage of the circuit capacitors and BANG goes the capacitor exploding and outsourcing a gas that smells just like electronics burning.

Years ago, to induce permanent magnetism in Alnico slugs the slugs would be wound with a few, 2 or 3, turns of heavy wire. It requires a massive jolt of current flow. In order to attain that required jolt of current, a bank of capacitors were charged to a high voltage. The high voltage built the charge in the capacitors that allowed the high current.

It would take a high voltage to produce the current that results in a circuit voltage excessively high enough to blow the circuit capacitors.

soy