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Author Topic: Help - Power Cord getting hot and melting  (Read 821 times)
pixel375
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August 07, 2017, 05:37:17 PM
 #1

Hello,
I decided to run my two S5 miners for a bit again, got them all connected to my evga 1300 (110V), but after running them for a couple days, I came back and when I touched the power cord going from the UPS into the wall, it was cooking hot, the shielding was soft and sticky. So I quickly shut everything off.

What would cause this?
Cheap power cable?
Wall outlet not providing enough power?

I really don't want to try a different cable before I know what caused that to happen, since I work 10-16 hours a day, and don't want to start an electrical fire.
Any help would be greatly appreciated.

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August 07, 2017, 06:13:38 PM
 #2

Hello,
I decided to run my two S5 miners for a bit again, got them all connected to my evga 1300 (110V), but after running them for a couple days, I came back and when I touched the power cord going from the UPS into the wall, it was cooking hot, the shielding was soft and sticky. So I quickly shut everything off.

What would cause this?
Cheap power cable?
Wall outlet not providing enough power?

I really don't want to try a different cable before I know what caused that to happen, since I work 10-16 hours a day, and don't want to start an electrical fire.
Any help would be greatly appreciated.


Well most likely it would be cheap cable. But even cheapest ones are pretty cold in my case (running 1000W+) so best bet is to try with better cable first, see if it'll make any difference.
NiHaoMike
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August 08, 2017, 12:55:07 AM
 #3

Replace the power cord with a bigger (lower AWG) one, then carefully monitor it for at least an hour. If it's the plug that's getting particularly hot, it might be the outlet, in which case try another outlet.

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August 08, 2017, 01:16:35 AM
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You try to check and tighten all screws, bolts between the cords lead and the MCCB. A common cause is tightened tightened bow which leads to poor contact and heat up.
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August 08, 2017, 01:26:38 AM
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there are two possible causes why it encounter overheating problem. first is the poor quality of your power cord and try to replaced them a good one AWG #12 to #15 is recommended.then the other causes was a poor electrical from your power outlet, try to find another good source of your power outlet.

pixel375
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August 08, 2017, 01:21:29 PM
 #6

Thanks guys.
Swapped that cheap thin power cable with a really thick server cord, will see how it's gonna work out.

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August 08, 2017, 02:58:09 PM
 #7

Check the temp of the outlet once it's been running a bit.  Make sure you don't have a high resistance connection there due to the previous issue...!

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August 08, 2017, 06:40:54 PM
 #8

Hello,
I decided to run my two S5 miners for a bit again, got them all connected to my evga 1300 (110V), but after running them for a couple days, I came back and when I touched the power cord going from the UPS into the wall, it was cooking hot, the shielding was soft and sticky. So I quickly shut everything off.

What would cause this?
Cheap power cable?
Wall outlet not providing enough power?

I really don't want to try a different cable before I know what caused that to happen, since I work 10-16 hours a day, and don't want to start an electrical fire.
Any help would be greatly appreciated.


 Sounds like you changed out the power cable at some point - the EVGA 1300 G2 comes with a 14 AWG cable that is rated for plenty of capacity and should NOT be doing that - especially since a pair of S5 units do NOT push the 1300 to full capacity (unless you're doing some SERIOUS overclocking on them).

 Make sure the power cable you are using is 14 AWG (it's right there on the cable on any decent-quality power cord).

 If you were using a 16 AWG cord, you WERE overloading it a hair, if you were using 18AWG I'm amazed the cable DIDN'T short out due to major overload meltdown.


 "THICK" does not matter - I've seen occasional 16AWG cords that were thicker than some of the 14AWG cords I have, and quite a few 18AWG that were thicker than some of the 16AWG I have.



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August 10, 2017, 12:46:31 PM
 #9

Check the Amperage of your socket and your power cord and compare it to the total power consumption of your build. E.g., if the Amperage of the power cord and socket is 16A, they can hold 3.5kW (given the Voltage of your socket is 220 Volts), if their Amperage is 25A, they can withhold 5.5kW, if it's a mere 10A, we're talking about 2.2kW max.
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August 11, 2017, 05:14:54 PM
 #10

Check the Amperage of your socket and your power cord and compare it to the total power consumption of your build. E.g., if the Amperage of the power cord and socket is 16A, they can hold 3.5kW (given the Voltage of your socket is 220 Volts), if their Amperage is 25A, they can withhold 5.5kW, if it's a mere 10A, we're talking about 2.2kW max.

 OP stated 110 volts in their first post.

FUKT
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August 11, 2017, 05:20:53 PM
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Then divide those figures by 2.
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August 13, 2017, 01:40:57 PM
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Странно, немного непонимаю что конкретно

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August 22, 2017, 06:20:02 PM
 #13

OP, maybe you will want to update your post so others will know if switching to server cable resolves issue.
As others stated, EVGA's original cables should handle it actually but you might be using another cheap cable.


     
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