Power supply acting up

[RMTguy]

Dear community,

I've only started a few months ago experimenting with mining and constructing a rig. Youtube and browsing forums has been my learning school , it hasn't been flawless but so far I've been able to piece together a six card rig with the following build :

PSU : EVGA 120 G2 – 1300-X2 Supernova Gold
Motherboard : B250 Mining Expert
RAM : DDR4 - Kingston - 4GB
CPU : Intel Celeron G1840
Risers : enooki Riser PCI-E USB 3.0 GPU Riser Adapter Card
HDD : SSD Sandisk 120GB
GPU : 5 x RX580 DDR4 1 x RX470 DDR4

It has been a very intresting project so far , with it's ups and downs , i've managed to flash the cards , increase virtual memory and have a hashrate now of around 120MH.
The rig itself has had a "stable" past , usual uptime is around 120 hours before I reboot it manually to tinker with the settings.

The past days however the rig has been acting up , I notice it reboots on its own and when it does it starts mining again ( Windows 10 OS with claymore dual miner ) but can't get any jobs , then i shut down claymore manually and try again and then it works. However I have noticed the PSU is very hot at this point when it reboots on its own. I find it strange however since it has not done this before and the room temperature has remained the same since it began. The room is usually around 20° Celsius ( it's my office ) and cools down at night to around 17°.

Is this the point where I should look at placing additional cooling on the rig to increase its stability? And if so , should I look to cool the GPU cards first or the PSU?

Thanks in advance for any sort of tips or advice

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[gotminer]

Is this the point where I should look at placing additional cooling on the rig to increase its stability? And if so , should I look to cool the GPU cards first or the PSU?

Thanks in advance for any sort of tips or advice

Is your rig in an open air frame?  Why not do both at the same time?  20" box fan at the back of the rig works well for me.  I have one on the back of each of my 6 gpu rigs.  Prior to that, gpu's and psu's were hot to the touch.  Not so much anymore.

[leonix007]

The past days however the rig has been acting up , I notice it reboots on its own and when it does it starts mining again ( Windows 10 OS with claymore dual miner ) but can't get any jobs , then i shut down claymore manually and try again and then it works. However I have noticed the PSU is very hot at this point when it reboots on its own. I find it strange however since it has not done this before and the room temperature has remained the same since it began. The room is usually around 20° Celsius ( it's my office ) and cools down at night to around 17°.

seems that something is wrong and wearing, do you have your extra risers? if so, try to replace them, you may also try to reduce 1 GPU for the meantime and observe, just for isolation purpose.

[jillscarbrough]

However I have noticed the PSU is very hot at this point when it reboots on its own...

Please show to us your powering scheme, it must be something wrong with your scheme. Check your electricity voltage, may down voltage. Also, check your Physical PSU, make sure a fan working properly.

[RMTguy]

UPDATE : I have added a Thermaltake Mobile Fan II which is directed at the PSU for testing purposes , it feels relatively cool to the touch now and has been running for 1:31 stable now. I will see to adding a more optimal cooling fan solution , after all " Summer is coming ". Thanks for the comments and tips everyone.