NEW PSU Died After 24 Hours?

[coinzoid]

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.

[1715417546]

1715417546

[1715417546]

1715417546

[1715417546]

1715417546

[1715417546]

1715417546

[1715417546]

1715417546

[navydude]

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. 

[Eyedol-X]

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.

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.

[philipma1957]

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.

[velbet]

are you doing dual mining ?

[arielbit]

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

[coinzoid]

@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.

[not.you]

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?

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.

[m1n1ngP4d4w4n]

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 !

[helloeverybody]

@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.

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.

[RentGPU]

@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.

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.

[philipma1957]

Hey guys he said his psu made a loud popping noise.

95% chance = popped cap = dead psu = rma


At op.

that psu comes with this part


https://www.newegg.com/Product/Product.aspx?Item=9SIA2F84BC9923&cm_re=evga_1200_p2-_-17-438-029-_-Product

1)first turn switch on psu to off

2) so plug power cable into wall
3) plug psu power cable into psu power switch on psu is off
4) 24 pin mobo cable only no other cable into psu
5) tester on the open end of mobo cable

then using the switch on the psu turn it to on

my guess is the circuit breaker in your home trips due to a psu short



see this

[stoniestfool]

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.

You have a 1200 watt psu. Look at the side. That is not 1200 watt of 12volt. That is most likely 1000 at 12volt and 200 at 5 and 3 volt. So good job you killed your psu. The psu was not faulty as it was working until you overloaded the 12 volt rail. You should not rma as the problem was with your lack of knowledge and not the PSU.

[Quesdana]

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.

You have a 1200 watt psu. Look at the side. That is not 1200 watt of 12volt. That is most likely 1000 at 12volt and 200 at 5 and 3 volt. So good job you killed your psu. The psu was not faulty as it was working until you overloaded the 12 volt rail. You should not rma as the problem was with your lack of knowledge and not the PSU.

1200W power supply should be able to support 6X RX 480.

[stoniestfool]

No it should not. 6 rx480's will pull over 1000 watts. You are not realizing a 1200 watt psu will only output a max of 1000 watts of 12volt power. GPU'S only use 12 volt. No 5 or 3 volt rails ever connect to gpu's. Sorry but you are not correct as you have no math to back up your statement. Only incorrect assumption. If you had 6 undervolted 480's it might pull around 1000. That is if you are running stock firmware and no overclocking That is also assuming you are ming eth only. No zcach , no dual mining no xmr..However, even then each gpu will spike and eventually you will go over 1000 and blow your psu.
     I am sure you ignorantly responded " 1200W power supply should be able to support 6X RX 480" without even looking at the side of the psu which would have clearly stated what I am tellinmg you.

[Biodom]

No it should not. 6 rx480's will pull over 1000 watts. You are not realizing a 1200 watt psu will only output a max of 1000 watts of 12volt power. GPU'S only use 12 volt. No 5 or 3 volt rails ever connect to gpu's. Sorry but you are not correct as you have no math to back up your statement. Only incorrect assumption. If you had 6 undervolted 480's it might pull around 1000. That is if you are running stock firmware and no overclocking That is also assuming you are ming eth only. No zcach , no dual mining no xmr..However, even then each gpu will spike and eventually you will go over 1000 and blow your psu.
     I am sure you ignorantly responded " 1200W power supply should be able to support 6X RX 480" without even looking at the side of the psu which would have clearly stated what I am tellinmg you.

i am not sure what is above based on; instructions clearly say 1198.8W on 12v rail:
http://www.evga.com/Products/Product.aspx?pn=220-P2-1200-X1

he messed up something else OR his wiring is old OR EVGA is defective (least likely in the beginning, but likely now).

[vapourminer]

that psu has overcurrent protection, it should just shut down if overloaded. not blow and make a "bang" noise, which indicated physical damage to the psu.

the psu is toast.

RMA it.

[RentGPU]

A poped circuit breaker means a short circuit not an overload ......thats it , if you power up the psu only and it did the same problem then you have a shorted psu

[stoniestfool]

I reviewed the specs and was wrong. This psu will output 1200 watts on the 12volt rail. However. Most psu's are not rated of the 12v , I see this one is.
If the psu keeps shutting off from overcurrent then he is pulling to much current. THAT IS THE DEFINITION OF OVERCURRENT.

I have 2 rigs each with 1 ref 480 and 5 rx 470. They each pull over 1200 watts while dual mining. Have not tried zcash miner since verion 9. On version 9 they would run for short periods until the spikes overloaded the 12volt. So I know 6 480's will pull even more.
  You assuming psu's could be defective. The odds are so slim you would have a better chance at hitting the lotto.  I am a hardware expert. It is not like a cap can be incorrectly made.  The only thing that would make a psu defective would be a bad solder joint.
 

If he had modded roms and was only mining eth that yes the psu could be the problem. Overclocked ref 480's dual mining pull 225 watts. so do the math. 6 x 225 is higher than 1200. Even non ref 480's pull 200. So if 1 gpu spiked it would go over the 1200 watts. The fact that the psu is working but keeps shutting off due to overcurrent protection eliminates the possibility of the psu being fault. IMHO. Yes . I know when you google tdp rx 480 it says 140 to 160 watt. That is on stock. On stock settings it would take 3 years for roi if your electric is like mine at 13 cents per kilowatt.

Now that the psu is blowing the circuit breaker the psu is probably bad. That is not what started his problems, though.

[stoniestfool]

[/quote]

i am not sure what is above based on; instructions clearly say 1198.8W on 12v rail:
http://www.evga.com/Products/Product.aspx?pn=220-P2-1200-X1

he messed up something else OR his wiring is old OR EVGA is defective (least likely in the beginning, but likely now).
[/quote]

That was based off my 860 plantinum evga. The model I have is only rated a 752 on the 12v. Also, the stuggles I went through when I could not dual mine even 5 gpu's without the overcurrent protection shutting off the psu. 1 ref 480 I though would be 160 and 4 470 I though were 120. Total should have been 680. The walmeter would say around 850. I had not counted for the overvoltage nor the fact it was really 752 on 12v and not 860.

I do see I made an incorrect assumption that his psu was simuliar. However, the majority of psu's are like mine. The 12 volt rail is almost always lower than the psu rating.

[Biodom]

Now that the psu is blowing the circuit breaker the psu is probably bad. That is not what started his problems, though.

yes, of course, PSU is probably dead now and it was most likely not what started his problems, you are right.
Phil told him how to test PSU without connecting it to anything (with a plastic dummy/jumper short for the 24 pin connector, which is usually included in the box these days).

[philipma1957]

Now that the psu is blowing the circuit breaker the psu is probably bad. That is not what started his problems, though.

yes, of course, PSU is probably dead now and it was most likely not what started his problems, you are right.
Phil told him how to test PSU without connecting it to anything (with a plastic dummy/jumper short for the 24 pin connector, which is usually included in the box these days).

@ op I don't want to curse at you and call you terrible names.

But I have four firefighter relatives alive and one dead ( World Trade Center)

Your choice of putting in a bigger breaker was bad. Unsafe and if you had a fire with loss of life criminal neglect.

Never put in a bigger breaker. Unless you know exactly what you are doing.

Please be more careful.

[stoniestfool]

Now that the psu is blowing the circuit breaker the psu is probably bad. That is not what started his problems, though.

yes, of course, PSU is probably dead now and it was most likely not what started his problems, you are right.
Phil told him how to test PSU without connecting it to anything (with a plastic dummy/jumper short for the 24 pin connector, which is usually included in the box these days).

@ op I don't want to curse at you and call you terrible names.

But I have four firefighter relatives alive and one dead ( World Trade Center)

Your choice of putting in a bigger breaker was bad. Unsafe and if you had a fire with loss of life criminal neglect.

Never put in a bigger breaker. Unless you know exactly what you are doing.

Please be more careful.

Dude even if you know what your doing you should never upgrade the circuit breaker. The reason circuit breaker have rating is to match the rating of the wire in the wall. So unless you change the wire there is never a reason to upgrade the breaker.

[alucard20724]

A poped circuit breaker means a short circuit not an overload ......thats it , if you power up the psu only and it did the same problem then you have a shorted psu

actually, both conditions will cause it to pop.

if he only had the power supply hooked up to the circuit breaker, then it's highly unlikely he overloaded it, but instead shorted it because a properly function 1200w power supply will not pull enough current to overload a 25 amp circuit circuit breaker.

[QuintLeo]

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

 NEVER EVER DO THAT.

 You have just created a MAJOR fire hazard.

 It is safe to replace a breaker with one at a LOWER amperage rating, but NEVER EVER put a higher-rated breaker on a circuit.



 As far as the power supply goes - it was probably defective, the most common time for anything electronic to die is very early in it's lifetime (this is commonly known as "infant mortality"), even folks that make good gear will have occasional failures early on.

 Probably since it's so new you can get it replaced through the dealer you bought it from.



 Most if not all power supplies in the 1KW+ rated range are capable of supplying their full rated output or very close to it on just the +12V rail(s).
 It doesn't hurt to CHECK ahead of time though, there are a FEW exceptions out there (or used to be).

[philipma1957]

Now that the psu is blowing the circuit breaker the psu is probably bad. That is not what started his problems, though.

yes, of course, PSU is probably dead now and it was most likely not what started his problems, you are right.
Phil told him how to test PSU without connecting it to anything (with a plastic dummy/jumper short for the 24 pin connector, which is usually included in the box these days).

@ op I don't want to curse at you and call you terrible names.

But I have four firefighter relatives alive and one dead ( World Trade Center)

Your choice of putting in a bigger breaker was bad. Unsafe and if you had a fire with loss of life criminal neglect.

Never put in a bigger breaker. Unless you know exactly what you are doing.

Please be more careful.

Dude even if you know what your doing you should never upgrade the circuit breaker. The reason circuit breaker have rating is to match the rating of the wire in the wall. So unless you change the wire there is never a reason to upgrade the breaker.

If you know exactly what you are doing when you upgrade a circuit breaker from 15 to 20 or 25 to 32 amps it means you know to upgrade the wire.

But in the case of the op. Whom has no fucking idea of what he is doing he needs to be more careful.

My early post told him to rma the psu.

He did not he upgraded the circuit breaker.  And of course popped the breaker.

I offer my prayers for the op and his family and the fireman that serve his town.

[NewbieMiner.IO]

It is PSU faults , it is defective , File a consumer complaint and ask for a refund .

[coinzoid]

I haven't mentioned but I was using modded bios from Jukebox (Powersave bios) and was pulling around 820 watts from wall. If i downvolt i was able to pull around 700 watts.

Seller is kind enough to offer a replacement. But I'm afraid a replacement will cause same issue. So I need to take measures to prevent same problem if it is a mistake on my end. I'm also willing to re-pay the item cost, if it turns out to be my mistake.

[coinzoid]

Hey guys he said his psu made a loud popping noise.

95% chance = popped cap = dead psu = rma


At op.

that psu comes with this part


https://www.newegg.com/Product/Product.aspx?Item=9SIA2F84BC9923&cm_re=evga_1200_p2-_-17-438-029-_-Product

1)first turn switch on psu to off

2) so plug power cable into wall
3) plug psu power cable into psu power switch on psu is off
4) 24 pin mobo cable only no other cable into psu
5) tester on the open end of mobo cable

then using the switch on the psu turn it to on

my guess is the circuit breaker in your home trips due to a psu short



see this

I have tested my psu with psu tester and result is same. I'm scared to touch Power On switch to make the test so it is already on Power ON position before connecting cable to wall. As soon as connecting PSU to wall socket problem repeats itself.

[stoniestfool]

[/quote]


I have tested my psu with psu tester and result is same. I'm scared to touch Power On switch to make the test so it is already on Power ON position before connecting cable to wall. As soon as connecting PSU to wall socket problem repeats itself.
[/quote]

The same problem being the breaker in your fuse boxes blows?  Did you buy this psu in a rig or separately? If you bought this in a rig perhaps the seller used refurbished psu's to save cost.  The psu is definitely bad if when you tested it by itself it blows the fuse. At that point if working correctly the psu is pulling almost no power. I see you were using power save bios so my assumption you must be pulling more than 1200 watts was wrong.
The rig was mining before you tried the 6th card?
When you are testing with the psu tester are all the other cables disconnected? Of course the 24 pin must be connected or maybe not if the tester plugs directly into the psu.

 If you still have the gpu cables connected to the psu but not the gpu's. I am wondering if you pulled to much power on 1 of the gpu connectors. This would cause the wires to get hot enough to melt the coating. Then underneath the sheath the individual wires would be touching. That would be a short and cause this problem.

[philipma1957]

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.

so like I said here in the beginning   the psu is bad.

as to what else is wrong you can not tell until you get a new psu.

once you get a new psu   do not attach to the mobo.

just test it with the little black tester  the mobo cable and the power cable.


once it works (95% chance it will work)   do not do any thing  come back here and tell us it passed.

I will give you  a step by step test method   with photos.

[Za1n]

This thread now has me thinking. A nearby store has a few Corsair AX1200i on sale (well they are actually refurbished) for around $150 each. I was going to take a chance and pick a couple up, but my first concern was they only carry a 90 day warranty. Now I am also concerned if they might be a fire hazard, as what was the reason they were refurbished.  Anyone have luck with refurbished PSU units? The store does have a 30 day policy, so if anything is immediately wrong I am ok, but I am think of once past the 90 day mark.

[stoniestfool]

There is no greater chance of a refurbished psu to caught fire than a new psu. You will get slightly less efficiency the same as if it were used. That is because caps wear overtime. How motherboard manufacturers advertise how many hours of use their caps are rated for.The fire hazard would be from improper installation. As far as longevity goes a refurbished psu would be fine for a pc that is not running constantly. For a mining rig that will run constantly that is just a bad idea.Probably why this psu died after 24 hours.

[coinzoid]

so like I said here in the beginning   the psu is bad.
as to what else is wrong you can not tell until you get a new psu.
once you get a new psu   do not attach to the mobo.
just test it with the little black tester  the mobo cable and the power cable.
once it works (95% chance it will work)   do not do any thing  come back here and tell us it passed.

I will give you  a step by step test method with photos.

@philipma1957
I'll come back and tell you once test is passed with new product. FYI, I've tested current PSU before connecting components to it and it has acted very well with built-in tester. But it died later, as I stated.

Shall I downgrade the circuit breaker back to Siemens B25? Remember I've upgraded it to Siemens B32 without upgrading cables. Due to building is 25 years old, it is difficult to change cables. Maybe I should create a new electrical line through wall but not sure what would be the best way to do it. I belive it will be impossible to use existing tunnels as they are very tight.

The same problem being the breaker in your fuse boxes blows?

It is tripping breaker, nothing like blow. Once I turn on breaker, breaker is working again. But PSU is tripping it even with only PSU tester is attached.

Did you buy this psu in a rig or separately?

I've bought PSU from an online store. Other components from different store. The box was unopened and I can tell, product was unused. Unless it was refurbished.

@stoniestfool

If you bought this in a rig perhaps the seller used refurbished psu's to save cost.  The psu is definitely bad if when you tested it by itself it blows the fuse. At that point if working correctly the psu is pulling almost no power. I see you were using power save bios so my assumption you must be pulling more than 1200 watts was wrong.

Correct, I also have kill a watt and I'm pretty sure 5 cards was pulling around 800 watts. Even with 6th gpu I should be pulling around 950 watts. I'm using another computer to mod bios of gpus before connecting them to new rig.

The rig was mining before you tried the 6th card?

Yes, it was hashing ETH using Claymore and my hashrate per gpu was 29.3 using modded bioses.

When you are testing with the psu tester are all the other cables disconnected? Of course the 24 pin must be connected or maybe not if the tester plugs directly into the psu.

PSU tester is attached to mobo cable. So nothing else was connected while testing PSU after issue.

If you still have the gpu cables connected to the psu but not the gpu's. I am wondering if you pulled to much power on 1 of the gpu connectors. This would cause the wires to get hot enough to melt the coating. Then underneath the sheath the individual wires would be touching. That would be a short and cause this problem.

Most likely due to a short this issue is happening. But I'm not an expert so I'll be following suggestions posted here.

[philipma1957]

Put the old breaker back in the breaker box.

Once you have the replacement let us know.

At this point. I suspect the psu was defective and popped a cap.

It happens.

[arielbit]

advice: add another layer of protection!

I'm using surge protector extension wire (2500W rating) that has a push to reset breaker built-in --> serves as first protection before the breaker trips

20A breaker --->to 2x outlet at 16A (socket rating each)
       - 2500w surge protect extension wire per outlet


some maths: (the secret is in the Amps)

20A breaker / AWG #12:
 plug 1: 2500W/220v  = 11.36A (~max)  --> outlet is 16A rating (safe) , wire is 20A breaker (safe)

 plug 2: 2500W/220v  = 11.36A (~max)  --> outlet is 16A rating (safe) , wire is 20A breaker (safe)

notes:
  - if 2500W is reached in both of the 2x surge protector extension wires (11.36A x 2 = 22.72A) the 20A breaker trips (solution: reduce load)
  - if one of the 2500W protector extension wire trips (11.36A reached or exceeded) (solution: reduce load)

the the load in my 2500W surge protector extension wires are tested thru time when voltage fluctuates, if voltage goes down (power company's service transformer get loaded) Ampere goes up a bit(ohms law)..today a one of my 2500W surge protector extension wire tripped(been running for about two weeks already), I unplugged my rig with 1x r9 390 and plugged it in my newly bought 2500W surge protector extension wire (will add a rig or two there for expansion).

 

[dagarair]

i have just sent 12 x 1300 Gold psu back to evga out of about 200.  As soon as i turned it on it sounded like a shotgun went off.  They were almost all sequential as well.  I thought I was doing something wrong, turns out it was a bad (weak) internal fuse.  They took them back asap no questions

[coinzoid]

Put the old breaker back in the breaker box.

Once you have the replacement let us know.

At this point. I suspect the psu was defective and popped a cap.

It happens.

Hello, I've received new psu (EVGA 1200 P2 again) and tested it using built-in psu tester for a few minutes. Fans spin and it looks like it is working.

Today, I'm going to put back old breaker back in breaker box as suggested and listen your suggestions.

I've Belkin F9M823YY2M-GRY as 8 socket surge protector. I can use this if helpful. Besides, I have used very cheap US to EU plug converter with dead psu. Shall I stick to it or order a better one? My PSU has US plug. But my location is EU so i need a converter.

I've figured out that that 25Amper breaker was connected to almost all wall sockets, air conditioner (not used at winter), gas combi and my pc.

Remember I've said I've a very good cable that is connected to 40Amper breaker, it was used for instant water heater at my bathroom but later it became available for other possible uses. At this time, we are not using it but I may need to extend that cable if you suggest to do so.

I'll apply your recommendations before turning my miner on again

[philipma1957]

okay  lets see a link  for the adapter as the adapter  may be the cause of the short.

under small test load  which passed you are fine.  check 1

check 2 is a look see at the adapter.

check 3 is not to be done until check 2

It sucks  but   I have had cheap adapters kill psus and gear.

Once we figure out the adapter is good or get a better one

check 3 is  plug the  24 pin into the mobo  plug the cpu cable into the mobo  using no cards  boot and see if the mobo posts.  this means you need to plug a video cable into the mobo's video

check 4  if check 3 passes    put in 1 video card  fire it up  don't mine with it.

check 5 if check 4 passes   test that same video card in all six slots don't mine with it

check 6 if check 5 passes  test the same video card in all six slots  via mining with it  1 hour each slot

check 7 if check 6 passes add a video card  mine with 2 video cards for an hour.

check 8 if check 7 passes add a video card mine with 3 video cards for an hour.

check 9 if check 8 passes add a video card mine with 4 video cards   for at least 2 hours

check 10 if check 9 passes add a video card mine with 5 video cards for at least 6 hours.


at this point  if you have 5 working video cards  you may as well stay at 5.  going to six  may not be worth it

[coinzoid]

okay  lets see a link  for the adapter as the adapter  may be the cause of the short.

http://urun.n11.com/adaptor-ve-cevirici/ay-ka-toprakli-ingiliz-fisi-cevirici-amerikan-fis-P77184027

I've used this product and noted following:

Bottom of adapter says 13A 250V
PSU cable has 15A 125V

Shall i buy a better adapter? I was hesitant to use this one but seller said there would be no problems. If required would you recommend following?
http://urun.n11.com/priz/universal-fis-priz-cevirici-adaptor-donusturucu-P149754987

Sorry for Turkish links. It is difficult to find quality stuff at local stores here.

[philipma1957]

okay  lets see a link  for the adapter as the adapter  may be the cause of the short.

http://urun.n11.com/adaptor-ve-cevirici/ay-ka-toprakli-ingiliz-fisi-cevirici-amerikan-fis-P77184027

I've used this product and noted following:

Bottom of adapter says 13A 250V
PSU cable has 15A 125V

Shall i buy a better adapter? I was hesitant to use this one but seller said there would be no problems. If required would you recommend following?
http://urun.n11.com/priz/universal-fis-priz-cevirici-adaptor-donusturucu-P149754987

Sorry for Turkish links. It is difficult to find quality stuff at local stores here.

missed this.so you go to a two pin wall socket?

Let's try your adapter.

Do mobo only no gpus.
Pass that test do one gpu
Pass that test do two gpu


Let us know if it
 Works with two.

Then test with three, four, five, six .

[induktor]

Hello
Late 4 the party i know, i just saw that.

6x RX480 uses more than 1200 W

that is a CONSUMER GRADE PSU, it is not a server grade

you should never EVER use a consumer grade PSU at more that 60% load capacity.

you should use 2 x 850W single rail, dual conversion (identical PSUs) with something like ADD2PSU gadget OR....
buy a 1700W PSU consumer grade.

even if you buy a server grade PSU, never use it over 80% load (continuous), at this point all bets are off.

i always use PSUs at 50% load rating, since 2013 i buy probably more than 300 PSUs for mining rigs, never EVER blow one of them, but i always load them at 50%, not more, need more power, use two in parallel with ADD2PSU (actually i made my own, it's freaking easy)
more power?, add another one, if they are identical you can put three in paralell doing an add2psu gadget.
(this is only possible if your psus are dual conversion, otherwise you will have a load of trouble)

and buy ONLY PSUs that are DUAL CONVERSION (that means that converts ALL power to 12V and then use separate VRM for 5v and 3.3v but the main transformer only produces 12V, so that you know that, if you don't use 5V and 3.3V you have all the power available for 12v rail)

another thing. first PSU in the rig powers all the risers, and the first two GPU (the one connected to the 16x primary slot) and the PC, the rest powers just the GPU 6/8 pin connectors.

[coinzoid]

Hello
Late 4 the party i know, i just saw that.

6x RX480 uses more than 1200 W

that is a CONSUMER GRADE PSU, it is not a server grade

you should never EVER use a consumer grade PSU at more that 60% load capacity.

you should use 2 x 850W single rail, dual conversion (identical PSUs) with something like ADD2PSU gadget OR....
buy a 1700W PSU consumer grade.

even if you buy a server grade PSU, never use it over 80% load (continuous), at this point all bets are off.

i always use PSUs at 50% load rating, since 2013 i buy probably more than 300 PSUs for mining rigs, never EVER blow one of them, but i always load them at 50%, not more, need more power, use two in parallel with ADD2PSU (actually i made my own, it's freaking easy)
more power?, add another one, if they are identical you can put three in paralell doing an add2psu gadget.
(this is only possible if your psus are dual conversion, otherwise you will have a load of trouble)

and buy ONLY PSUs that are DUAL CONVERSION (that means that converts ALL power to 12V and then use separate VRM for 5v and 3.3v but the main transformer only produces 12V, so that you know that, if you don't use 5V and 3.3V you have all the power available for 12v rail)

another thing. first PSU in the rig powers all the risers, and the first two GPU (the one connected to the 16x primary slot) and the PC, the rest powers just the GPU 6/8 pin connectors.

Thanks for suggestions but as I already stated I was using modded bios and at most I loaded my PSU with 850 watts most.

[philipma1957]

Hello
Late 4 the party i know, i just saw that.

6x RX480 uses more than 1200 W

that is a CONSUMER GRADE PSU, it is not a server grade

you should never EVER use a consumer grade PSU at more that 60% load capacity.

you should use 2 x 850W single rail, dual conversion (identical PSUs) with something like ADD2PSU gadget OR....
buy a 1700W PSU consumer grade.

even if you buy a server grade PSU, never use it over 80% load (continuous), at this point all bets are off.

i always use PSUs at 50% load rating, since 2013 i buy probably more than 300 PSUs for mining rigs, never EVER blow one of them, but i always load them at 50%, not more, need more power, use two in parallel with ADD2PSU (actually i made my own, it's freaking easy)
more power?, add another one, if they are identical you can put three in paralell doing an add2psu gadget.
(this is only possible if your psus are dual conversion, otherwise you will have a load of trouble)

and buy ONLY PSUs that are DUAL CONVERSION (that means that converts ALL power to 12V and then use separate VRM for 5v and 3.3v but the main transformer only produces 12V, so that you know that, if you don't use 5V and 3.3V you have all the power available for 12v rail)

another thing. first PSU in the rig powers all the risers, and the first two GPU (the one connected to the 16x primary slot) and the PC, the rest powers just the GPU 6/8 pin connectors.

Thanks for suggestions but as I already stated I was using modded bios and at most I loaded my PSU with 850 watts most.

Yeah I don't push my cards I do four card builds and I use evga 750 p2 with zero issues
My rigs pull 600 watts max

[coinzoid]

okay  lets see a link  for the adapter as the adapter  may be the cause of the short.

under small test load  which passed you are fine.  check 1

check 2 is a look see at the adapter.

check 3 is not to be done until check 2

It sucks  but   I have had cheap adapters kill psus and gear.

Once we figure out the adapter is good or get a better one

check 3 is  plug the  24 pin into the mobo  plug the cpu cable into the mobo  using no cards  boot and see if the mobo posts.  this means you need to plug a video cable into the mobo's video

check 4  if check 3 passes    put in 1 video card  fire it up  don't mine with it.

check 5 if check 4 passes   test that same video card in all six slots don't mine with it

check 6 if check 5 passes  test the same video card in all six slots  via mining with it  1 hour each slot

check 7 if check 6 passes add a video card  mine with 2 video cards for an hour.

check 8 if check 7 passes add a video card mine with 3 video cards for an hour.

check 9 if check 8 passes add a video card mine with 4 video cards   for at least 2 hours

check 10 if check 9 passes add a video card mine with 5 video cards for at least 6 hours.


at this point  if you have 5 working video cards  you may as well stay at 5.  going to six  may not be worth it

I've carefully applied all steps and I'm glad to say that 6 gpu mining works well this time. Maybe I'll be adding more gpus if I can add a second psu.

Thank you for your great help.

For all others it is safe to say that 6 gpu mining on z87 deluxe quad is confirmed by me You need to disable following onboard features:
integrated gpu
wifi
bluetooth
thunderbolt
realtek lan (maybe you can keep it active but you already have intel lan as well)

I haven't tested this combination but maybe you can disable both lans and use wifi. In my test it has failed (while igpu was enabled).

[uray]

you have insect or screw trapped inside your PSU, it happened to me

[philipma1957]

you have insect or screw trapped inside your PSU, it happened to me

This is  a good point.


I once had an extra part in a psu it killed the mobo and the cpu

[frukissaz]

does the EVGA Supernova 1200p2 support - 6 rx480.

i have one rig with a 1200p2 running with 4 gpus. 2 more gpus are on the way.

do any of you guys have an EVGA 1200p2 running with 6 rx 480?

thanks

[coinzoid]

does the EVGA Supernova 1200p2 support - 6 rx480.

i have one rig with a 1200p2 running with 4 gpus. 2 more gpus are on the way.

do any of you guys have an EVGA 1200p2 running with 6 rx 480?

thanks

Yes it supports running 6 gpu but you should undervolt your gpus. I'm using Sapphire Nitro RX 480 models and each gpu pulls around 130 watts after using a modded bios and undervolt.

[frukissa]

does the EVGA Supernova 1200p2 support - 6 rx480.

i have one rig with a 1200p2 running with 4 gpus. 2 more gpus are on the way.

do any of you guys have an EVGA 1200p2 running with 6 rx 480?

thanks

Yes it supports running 6 gpu but you should undervolt your gpus. I'm using Sapphire Nitro RX 480 models and each gpu pulls around 130 watts after using a modded bios and undervolt.

Is there any guide online i can find that will help me to do that.

In future rigs i guess 2 psus would be a better option

Which psu do you recommend for a 2 psu mining rig.

Thanks

[Quesdana]

Hello
Late 4 the party i know, i just saw that.

6x RX480 uses more than 1200 W

that is a CONSUMER GRADE PSU, it is not a server grade

you should never EVER use a consumer grade PSU at more that 60% load capacity.

you should use 2 x 850W single rail, dual conversion (identical PSUs) with something like ADD2PSU gadget OR....
buy a 1700W PSU consumer grade.

even if you buy a server grade PSU, never use it over 80% load (continuous), at this point all bets are off.

i always use PSUs at 50% load rating, since 2013 i buy probably more than 300 PSUs for mining rigs, never EVER blow one of them, but i always load them at 50%, not more, need more power, use two in parallel with ADD2PSU (actually i made my own, it's freaking easy)
more power?, add another one, if they are identical you can put three in paralell doing an add2psu gadget.
(this is only possible if your psus are dual conversion, otherwise you will have a load of trouble)

and buy ONLY PSUs that are DUAL CONVERSION (that means that converts ALL power to 12V and then use separate VRM for 5v and 3.3v but the main transformer only produces 12V, so that you know that, if you don't use 5V and 3.3V you have all the power available for 12v rail)

another thing. first PSU in the rig powers all the risers, and the first two GPU (the one connected to the 16x primary slot) and the PC, the rest powers just the GPU 6/8 pin connectors.

That is very good point. I only run my PSU at most 70% of the rated power.