Topic: Mining rig burning smell! (Read 689 times)

The CPU to PCIE power adapters just arrived and they work perfectly.
First, i plugged the psu bundle cpu power cable, to the psu itself and then i plugged these new cpu to pcie adapters, to the previous one and they fit perfectly.
So any cpu connector of my psus, gives me 2 8-pin pcie connectors to power a gpu with 2 8-pin power connectors such as my new 6700 XT.
To power the risers too, i have to use another cpu to pcie adapter, using the 6-pin part of another cpu to pcie adapter cable, plugged to another cpu bundle power cable.
Now i buy other 2 more, so i can use all of my psus cpu power connectors, to power the last 12th gpu that is about to arrive.
Thanks!

https://www.amazon.com/gp/product/B07CZCFFST/ref=ppx_yo_dt_b_asin_title_o00_s00?

this will work , but be sure you check that it wired correctly.

i test it with a meter.

https://www.amazon.com/gp/product/B08CX9W7G3/ref=ox_sc_act_title_1?

it will do about 175 watts safely maybe 200 your new card should be okay with it.

But in general, the 8-pin splitters(1 female to 2 males) shouldn't overload the single 8-pin source connector?
If a gpu needs one 8-pin and one 6-pin plugs to be powered, doesn't need more power than a single 8-pin source plug can manage?
So is it safe to use these splitters?

Yes i already have 12 of these splitters, so do you mean i can use 1 splitter to connect my 6700 XT to the 8-pin CPU2 connector of one of my psus?
And one of the two 6-pin connectors(labeled as Perif1 and Perif2) to power the riser?

https://www.amazon.com/gp/product/B07CZCFFST/ref=ppx_yo_dt_b_asin_title_o00_s00?

this will work , but be sure you check that it wired correctly.

i test it with a meter.

https://www.amazon.com/gp/product/B08CX9W7G3/ref=ox_sc_act_title_1?

it will do about 175 watts safely maybe 200 your new card should be okay with it.

Thanks!
Another gpu is about to arrive and is a Radeon 6700 XT that has 2 power connectors: 1 8-pin and 1 6-pin.
On my 2 psus, i already have 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.

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.

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.

no no no no no no.

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

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.

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

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

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

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