Mining rig burning smell!

[SamaritanMan]

Thanks, but which is the differences if, at first glance, i try to start my rig as is and i check if all of my gpus mine whitout issues?
After this easy and straight check, if i notice some differences in the hashrate of some gpus, then and only then i go to deepen, only for that specific gpu.
What do you think?

[SamaritanMan]

the psu you linked is short on pcie cables

look for evga 1300 watt on italy amazon


https://www.amazon.it/EVGA-SuperNOVA-Modular-Warranty-220-GT-1300-X2/dp/B09JP7QPSV/ref=sr_1_1?

the evga has six pcie slots

the be quiet has 4 pcie slots

Yes, i took just this one, because the first buy had a problem with the crypto card and so i looked better down the page and i noticed just that one.
Moreover it's 1300Watt.
Thanks however!

[FP91G]

Thanks, but which is the differences if, at first glance, i try to start my rig as is and i check if all of my gpus mine whitout issues?
After this easy and straight check, if i notice some differences in the hashrate of some gpus, then and only then i go to deepen, only for that specific gpu.
What do you think?

If any of the video cards is faulty, then you can get fireworks after turning on the mining farm. The motherboard for mining is more expensive, so I test video cards on a separate PC. If you think that all your video cards are working, then do as you please.

[verbakalim]

Thanks, but which is the differences if, at first glance, i try to start my rig as is and i check if all of my gpus mine whitout issues?
After this easy and straight check, if i notice some differences in the hashrate of some gpus, then and only then i go to deepen, only for that specific gpu.
What do you think?

GPUs are powerful hardware products. These products do not deteriorate immediately. The routers you use to connect the GPUs to the system can cause problems. Therefore, enable each gpu one by one.

[SamaritanMan]

The first psu arrived and i spent some hours to assemble everything with only 5 gpus that work as ever, luckily.
Tomorrow the second psu will arrive and i will install the other 5 gpus.
Now i want to know approximately the power consumption of all the system in addition to the gpus, so the mobo, the risers, the ssd, the ram ecc..
So i can have an idea about the total power drain of my rig other than all the 10 gpus.
I took 2 of these:
https://www.amazon.it/gp/product/B09JP7QPSV/ref=ppx_yo_dt_b_asin_image_o01_s00?ie=UTF8&psc=1
I think these psus are perfect and now i have been able to arrange all the cables neatly and not tangled between the gpus.
I only have a doubt about the risers connections, because i used 3 molex connectors located along a single cable, but I have heard that it is better not to go beyond the two cable connectors per single cable.
Right?
However it's confusing because i found in the psu package, 2 molex cable with 4 connectors per cable.
Thanks again!

[philipma1957]

The first psu arrived and i spent some hours to assemble everything with only 5 gpus that work as ever, luckily.
Tomorrow the second psu will arrive and i will install the other 5 gpus.
Now i want to know approximately the power consumption of all the system in addition to the gpus, so the mobo, the risers, the ssd, the ram ecc..
So i can have an idea about the total power drain of my rig other than all the 10 gpus.
I took 2 of these:
https://www.amazon.it/gp/product/B09JP7QPSV/ref=ppx_yo_dt_b_asin_image_o01_s00?ie=UTF8&psc=1
I think these psus are perfect and now i have been able to arrange all the cables neatly and not tangled between the gpus.
I only have a doubt about the risers connections, because i used 3 molex connectors located along a single cable, but I have heard that it is better not to go beyond the two cable connectors per single cable.
Right?
However it's confusing because i found in the psu package, 2 molex cable with 4 connectors per cable.
Thanks again!

no no no no no no.

a molex can only do 1 riser safely
2 risers are a risk
3 riser = meltdown

Let me look at that psu a bit more closely

and post a photo of your risers


here is your psu

https://www.evga.com/products/product.aspx?pn=220-GT-1300-X1




CABLE LENGTH

ATX Cable   1x 600mm (m)
EPS Cable   2x 750mm (m)
PCIe Cable   4x 750mm (m), 2x 750mm, 900mm (m)

SATA Cable   4x 550mm, 650mm, 750mm (m) let me find an adapter for this found it https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

Four-Pin Peripheral Cable   2x 550mm, 650mm, 750mm, 850mm (m).    these will do 1 riser each so 2 risers for 2 cables
Floppy Adapter   1x Molex to FDD Adapter
AC Power   1x 1500mm (m)
Modular Cable Type   Full
Molex to FDD   1x
CONNECTOR QUANTITY

24 Pin ATX   1x
EPS (CPU)   2x 8pin(4+4)
PCIe   8x 8pin(6+2)
SATA   12x
Four-Pin Peripheral   8x
Floppy   1x
POWER SPECS

AC Input   100-240V~, 15-8A, 60/50Hz
Rail   +3.3V   +5V   +12V   +5Vsb   -12V
Max Output   25A   25A   108.3A   3A   0.5A
130W   1300W   15W   6W
Total   1300W
ADDITIONAL DETAILS

Operating Temperature   +50° C
Japanese Capacitors   100%
ECO Mode   Yes
MTBF   100,000 Hours
Net Weight   9 lbs
Size   86mm (H) x 150mm (W) x 180mm (L)
Approvals   TUV, CB, CE, FCC, RCM, cTUVus, WEEE, RoHS
Compliance with ErP Lot 3 2014 Requirement
Fan Size / Bearing   135mm Fluid Dynamic Bearing
Product Warranty

This product comes with a 10 year limited warranty with registration.
EVGA offers several warranty solutions for our customers to choose from. Please refer to the suffix of the part number and our Warranty Terms for details.



So you have 4 sata cables use one of these on 1 sata cable

https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

so 3 of these packages are nine adapters  you have 2 psu's with 4 sata cables you can do all of those cables

so 4 sata to molex
2 molex    and first psu does 6 risers with 6 cables Should be safe

[SamaritanMan]

no no no no no no.

a molex can only do 1 riser safely
2 risers are a risk
3 riser = meltdown

Let me look at that psu a bit more closely
and post a photo of your risers

here is your psu

https://www.evga.com/products/product.aspx?pn=220-GT-1300-X1

CABLE LENGTH

ATX Cable   1x 600mm (m)
EPS Cable   2x 750mm (m)
PCIe Cable   4x 750mm (m), 2x 750mm, 900mm (m)

SATA Cable   4x 550mm, 650mm, 750mm (m) let me find an adapter for this found it https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

Four-Pin Peripheral Cable   2x 550mm, 650mm, 750mm, 850mm (m).    these will do 1 riser each so 2 risers for 2 cables
Floppy Adapter   1x Molex to FDD Adapter
AC Power   1x 1500mm (m)
Modular Cable Type   Full
Molex to FDD   1x
CONNECTOR QUANTITY

24 Pin ATX   1x
EPS (CPU)   2x 8pin(4+4)
PCIe   8x 8pin(6+2)
SATA   12x
Four-Pin Peripheral   8x
Floppy   1x
POWER SPECS

AC Input   100-240V~, 15-8A, 60/50Hz
Rail   +3.3V   +5V   +12V   +5Vsb   -12V
Max Output   25A   25A   108.3A   3A   0.5A
130W   1300W   15W   6W
Total   1300W
ADDITIONAL DETAILS

Operating Temperature   +50° C
Japanese Capacitors   100%
ECO Mode   Yes
MTBF   100,000 Hours
Net Weight   9 lbs
Size   86mm (H) x 150mm (W) x 180mm (L)
Approvals   TUV, CB, CE, FCC, RCM, cTUVus, WEEE, RoHS
Compliance with ErP Lot 3 2014 Requirement
Fan Size / Bearing   135mm Fluid Dynamic Bearing
Product Warranty

This product comes with a 10 year limited warranty with registration.
EVGA offers several warranty solutions for our customers to choose from. Please refer to the suffix of the part number and our Warranty Terms for details.



So you have 4 sata cables use one of these on 1 sata cable

https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

so 3 of these packages are nine adapters  you have 2 psu's with 4 sata cables you can do all of those cables

so 4 sata to molex
2 molex    and first psu does 6 risers with 6 cables Should be safe

I stopped my rig as soon as i read your helpfull post!!
So do you mean i can use only 2 sata/molex cable i have per psu(so 4 in total) only for powering 2(so 4 total) gpus?
That is one cable per gpu, despite any sata/molex cable has 4 molex connectors?
So i should buy 3 of that sata to molex adapters, to use the other 3 sata connectors(6 in total with 2 psus) i have per psu, to adapt those cables for the risers molex connection?
Thanks for your quick salvation of my rig!!

[HagssFIN]

Sorry, but this whole rig story here is pure chaos.

Take it easy man, listen to the advices here and don't go with cheap supplies

[deskless]

I had a few components burnt since I started in 2018. Mostly the power cable from PSU to riser. Also the WIFI plug I use at the rigs. If you are able to identify the rig that has smell, check all the electrical components.

[verbakalim]

Of the mining equipment I have used over the years, the most problematic ones are cable sockets.
Receiving more than 2 terminals from the power supply sata cable.
The poor quality of the extension cords I use on the sata cable.
The poor quality of the socket of the multiplexers I use in Molex sockets.
Self-deteriorating rizers.

[SamaritanMan]

Sorry, but this whole rig story here is pure chaos.

Take it easy man, listen to the advices here and don't go with cheap supplies

Yes man, i learned my lesson.

:|

[SamaritanMan]

no no no no no no.

a molex can only do 1 riser safely
2 risers are a risk
3 riser = meltdown

Let me look at that psu a bit more closely

and post a photo of your risers


here is your psu

https://www.evga.com/products/product.aspx?pn=220-GT-1300-X1




CABLE LENGTH

ATX Cable   1x 600mm (m)
EPS Cable   2x 750mm (m)
PCIe Cable   4x 750mm (m), 2x 750mm, 900mm (m)

SATA Cable   4x 550mm, 650mm, 750mm (m) let me find an adapter for this found it https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

Four-Pin Peripheral Cable   2x 550mm, 650mm, 750mm, 850mm (m).    these will do 1 riser each so 2 risers for 2 cables
Floppy Adapter   1x Molex to FDD Adapter
AC Power   1x 1500mm (m)
Modular Cable Type   Full
Molex to FDD   1x
CONNECTOR QUANTITY

24 Pin ATX   1x
EPS (CPU)   2x 8pin(4+4)
PCIe   8x 8pin(6+2)
SATA   12x
Four-Pin Peripheral   8x
Floppy   1x
POWER SPECS

AC Input   100-240V~, 15-8A, 60/50Hz
Rail   +3.3V   +5V   +12V   +5Vsb   -12V
Max Output   25A   25A   108.3A   3A   0.5A
130W   1300W   15W   6W
Total   1300W
ADDITIONAL DETAILS

Operating Temperature   +50° C
Japanese Capacitors   100%
ECO Mode   Yes
MTBF   100,000 Hours
Net Weight   9 lbs
Size   86mm (H) x 150mm (W) x 180mm (L)
Approvals   TUV, CB, CE, FCC, RCM, cTUVus, WEEE, RoHS
Compliance with ErP Lot 3 2014 Requirement
Fan Size / Bearing   135mm Fluid Dynamic Bearing
Product Warranty

This product comes with a 10 year limited warranty with registration.
EVGA offers several warranty solutions for our customers to choose from. Please refer to the suffix of the part number and our Warranty Terms for details.



So you have 4 sata cables use one of these on 1 sata cable

https://www.amazon.com/Power-Cable-Adapter-Female-8-inch/dp/B07BQFKTG7/ref=sr_1_3?

so 3 of these packages are nine adapters  you have 2 psu's with 4 sata cables you can do all of those cables

so 4 sata to molex
2 molex    and first psu does 6 risers with 6 cables Should be safe

Ok, i already have enough sata to molex adapters, because i recently bought, 2 packs of 6 risers that had these adapters included in the package.
So i changed my rig connections and now there are 1 molex cable per riser,  so 4 risers powered with molex and 6 risers powered with the 6 pin connectors.
The adapters i found in the risers packages are similar to the ones you linked, but they have the 6 pin connector on one end, instead of the molex one.
So i think they should be even better, right?
Now the rig is going perfectly and a big thank you goes out to all of you that supported me.

[deskless]

Did you ever find out what was the source of smell?

[philipma1957]

Did you ever find out what was the source of smell?

likely he burnt a cap. they stink badly

[SamaritanMan]

Did you ever find out what was the source of smell?

Yes, i had overloaded my old chinese 2000W psu, powering 10 gpus all together with it.
After a month about, it was melting down.

[deskless]

good that you found out. I have been very careful since I experienced burned smell myself a few occasion. I am a small miner so able to do smell test each day. The large miners probably have better solution. In my case it was electrical adapter and riser in separate occasions.

[verbakalim]

good that you found out. I have been very careful since I experienced burned smell myself a few occasion. I am a small miner so able to do smell test each day. The large miners probably have better solution. In my case it was electrical adapter and riser in separate occasions.

While the system is running, pay attention to the Gpu fans and check the connection sockets of the cables with your hand. It's usually cold. If heat has started in the cable socket, this will also cause problems. From the heat rate, you can notice this socket before it melts and solve it without problems. When the socket melts and the cables are damaged, you need to try a little harder. When the smell begins to come, the socket heats up and melts so much that it can no longer be saved.

[FP91G]

The first psu arrived and i spent some hours to assemble everything with only 5 gpus that work as ever, luckily.
Tomorrow the second psu will arrive and i will install the other 5 gpus.
Now i want to know approximately the power consumption of all the system in addition to the gpus, so the mobo, the risers, the ssd, the ram ecc..
So i can have an idea about the total power drain of my rig other than all the 10 gpus.
I took 2 of these:
https://www.amazon.it/gp/product/B09JP7QPSV/ref=ppx_yo_dt_b_asin_image_o01_s00?ie=UTF8&psc=1
I think these psus are perfect and now i have been able to arrange all the cables neatly and not tangled between the gpus.
I only have a doubt about the risers connections, because i used 3 molex connectors located along a single cable, but I have heard that it is better not to go beyond the two cable connectors per single cable.
Right?
However it's confusing because i found in the psu package, 2 molex cable with 4 connectors per cable.
Thanks again!

no no no no no no.

a molex can only do 1 riser safely
2 risers are a risk
3 riser = meltdown

If using Radeon RX 6600 XT and GeForce RTX 3060 Ti, then I would connect these 2 raisers from 1 single power branch, provided that the GeForce RTX 3060 Ti does not consume more than 140 watts. This is bad, but my farms have been working like this for 6 years, but I have high-quality wires and expensive PSUs. For such a number of video cards, it would probably be better to order a ready-made server block for 2 kilowatts for 200-250 dollars.

[philipma1957]

The first psu arrived and i spent some hours to assemble everything with only 5 gpus that work as ever, luckily.
Tomorrow the second psu will arrive and i will install the other 5 gpus.
Now i want to know approximately the power consumption of all the system in addition to the gpus, so the mobo, the risers, the ssd, the ram ecc..
So i can have an idea about the total power drain of my rig other than all the 10 gpus.
I took 2 of these:
https://www.amazon.it/gp/product/B09JP7QPSV/ref=ppx_yo_dt_b_asin_image_o01_s00?ie=UTF8&psc=1
I think these psus are perfect and now i have been able to arrange all the cables neatly and not tangled between the gpus.
I only have a doubt about the risers connections, because i used 3 molex connectors located along a single cable, but I have heard that it is better not to go beyond the two cable connectors per single cable.
Right?
However it's confusing because i found in the psu package, 2 molex cable with 4 connectors per cable.
Thanks again!

no no no no no no.

a molex can only do 1 riser safely
2 risers are a risk
3 riser = meltdown

If using Radeon RX 6600 XT and GeForce RTX 3060 Ti, then I would connect these 2 raisers from 1 single power branch, provided that the GeForce RTX 3060 Ti does not consume more than 140 watts. This is bad, but my farms have been working like this for 6 years, but I have high-quality wires and expensive PSUs. For such a number of video cards, it would probably be better to order a ready-made server block for 2 kilowatts for 200-250 dollars.

yeah I was extra cautious as a molex cable  can usually handle 2 lesser power cards. A sata cable not so much

he did get a very good set of power supplies in the 1300 watt EVGA's with enough cables to do his setup safely.

[SamaritanMan]

yeah I was extra cautious as a molex cable  can usually handle 2 lesser power cards. A sata cable not so much

he did get a very good set of power supplies in the 1300 watt EVGA's with enough cables to do his setup safely.

Thanks!
Another gpu is about to arrive and it is a Radeon 6700 XT that has 2 power connectors: 1 8-pin and 1 6-pin.
On my 2 psus, i already used most of the power connectors dedicated to the gpus, but there are other 2 6-pin connectors labeled as "Perif1", "Perif2" and another 8-pin connector labeled as "CPU2".
I wish to know if i can safely use these connectors to power the new 6700 XT, that is the CPU2(8-pin) and one of the 2 PerifX(6-pin) connectors.
Thanks again.