Topic: NEW PSU Died After 24 Hours? - page 3. (Read 2535 times)

Try to run the system with one gpu if ok, then add another in sequance until the problem appears , maybe a raiser problem if it's powered raisers maybe one of them is shorting the psu so it shorts the breaker, the main reason for circuit breaker to close is a short circuit not an overload , you must be searching for short circuit.

You shouldnt just be upping the size of your mcbs without checking how its wired, You may have a ring main wired in 2.5mm in which case the 32 is acceptable  but im not sure how its done in turkey, chances are youve put in too large a circuit breaker for for the circuit. you may have luck changing out the mcb for a c type breaker which will give you a larger starting current which may me the issue as you try starting up. You also dont mention if you have an rcd on this circuit because if you do then it would be safe to assume its 30ma and if your loading it up with a lot of computer equipment you will soon have more leakage current than  that rcd can cope with.

On another note that psu shouldnt draw more than 5 amps flat out so i doubt your circuit is overloaded unless your running a lot of other things on it.

I recommend for rig power distribution monitoring to get a good termal camera, it can help you easily pinpoint where your "hotspot" are, and take mesure to fix it. A must have for serious miners !

That depends.  You can check the wires to see how hot they are getting as you run.  If they are getting really hot then you are pulling too much power and need to separate them.  It is a little subjective, I mean what does "really hot" mean?  But consider that you really don't want to be responsible for burning the place down and maybe killing some neighbors so use good judgment.  It isn't unusual for the wires to be warm but if you think they seem more than warm then separate them.

I am surprised by this though, my experience with EVGA is that the high end PSU's are rock solid.  But as you describe it, it sounds like without a doubt the PSU has failed and needs to be replaced, just as others have said.

@navydude I live in Europe (Turkey) so we have 240 instead of 120. The apartment i live in is 25 years old. So wiring in my house is not quite new. Only good wiring is the one I've planned and deployed for instant water heater at my bathroom. Later, we switched to natural gas combi and that wiring does not have anything attached. Also circuit breaker connected to that wire is Siemens B40.

Today, I've upgraded the problematic circuit breaker from Siemens B25 to Siemens B32 and found out EVGA still tripping circuit breaker.

I'm pretty sure, air conditioner (inverter model) in my room and maybe combi is connected to same circuit breaker. However, when testing EVGA with other outlets, it tripped main circuit breaker of my apartment.

A question is: I have two peripheral cable from my psu and i was connecting two gpus usb/molex riser per cable before issue happening. Is this a mistake?

If you want i can provide screenshots of my setup.

@velbet No I didn't dual mine yet. I was considering it but didn't have time to test.

or worse, it took some of your gear with it to the netherworld.

are you doing dual mining ?

Bang in a psu = boiled cap and explode  = dead = rma  get it replaced.


It should not have happened.


so the psu was defective or a short in the other gear killed it.

Either you have some really dirty power that killed the PSU or you just got a bad PSU is my guess.

If you just purchased the PSU, return it and swap it out, otherwise I would buy another and send that one off to EVGA for repairs.

What else is on that circuit? One rig shouldnt pull more that about 12 or 13 amps @ 120v with 6 gpus. I installed double pole breakers and wired my outlets to 240v so that amp pull drops in half and i can now run 2 rigs on a 20 amp circuit. I am not sure why you have a 25amp breaker though. Most newer houses are wired with 12 gauge wire and are on 20 amp breakers. Alot of the older homes have 14 gauge wire and should be on 15 amp breaker. See what size wire is feeding you outlet and to your breaker. Double check its not overloaded. If you starve the power supply it will likely blow. Been there and done that. 

Hello everyone, recently I've ordered following system:

EVGA 1200 P2 PSU
6 x rx480 Nitro+s
Risers v6
8 GB DDR3 RAM
SSD
z87 deluxe quad
g1840 cpu

STORY: I've mounted my system and gpus on a rack and system worked fine except 6th gpu. It looked like thunderbolt on mobo enables itself on connecting 6th riser. This mobo has 7 pcie slots and i have configured slots as gen2.

Anyway, while researching for thunderbolt issue, I faced another problem. For no reason my psu produced a big noise (bang) and turned off itself and also turned off circuit breaker. As soon as connecting PSU with PSU tester it is tripping circuit breaker again with same noise.

My circuit breaker is B class Siemens 25 Amper.

Later, I tried to unplug everything and only use PSU tester on another outlet. Same thing happened. My friend checked it and told me i should return PSU. I've asked him if I should upgrade circuit breaker with another large capacity one but he said that would be overkill. Before dying, psu and system is working fine and issue happened randomly just after 2 minutes of decreasing temperature of Natural gas combi. Basically, when using room termostat, if you set temp to a lower value, it turns off the combi remotely. Somehow, I think it is not just random crash and looking for ways to adjust my environment.