No Voltage on Octopus V1.1 J26 pins?

hey guys I powered my VC4 for the first time but my Pi does not recieve a voltage from the Octopus J26 Pins what could be the reason for that? Can anyone help me out?

if you need any other info, let me know

TheTik•8/30/24, 10:44 AM

Use a multimeter to see how far the voltage gets. And drop a pic of your wiring

Jamorro•8/30/24, 11:17 AM

did you check that you are not getting any voltage from the cables with a multimeter? If yes
Did you rules out the cable by checking the pins on the octopus?

Jamorro•8/30/24, 11:18 AM

does the pi turn on if you connect the pins to another 5v source etc

You need to describe what you have tried and what the results were

Jamorro•8/30/24, 11:19 AM

otherwise its very hard to help you with this

JJamorro did you check that you are not getting any voltage from the cables with a multim...

NebuCHADnezzarOP•8/30/24, 5:35 PM

I found out some of the pins seem to have 5 volt when I measure them, but the pi only turns on for 2-3 seconds and then turns off again...

I measured at the pins...

also all fan header pins are dead except the most upper one...

if I conntect the pi to own power source it boots up normally, but the octopus is not recognized by RatOS...

I think the board died, but I dont know why... I handeled it with care and was wearing ESD bracelet...

TTheTik Use a multimeter to see how far the voltage gets. And drop a pic of your wiring

NebuCHADnezzarOP•8/30/24, 5:36 PM

NNebuCHADnezzar Click to see attachment

TheTik•8/30/24, 6:40 PM

Use two ground and two power pins from the octopus to the raspi. One doesn't carry enough current

TheTik•8/30/24, 6:41 PM

I don't know what all the pi is powering, but I see a few 'extra' usb cables

NebuCHADnezzarOP•8/30/24, 6:42 PM

its the toolboard, the beacon probe and a connection between the octopus and the pi...

TTheTik Use two ground and two power pins from the octopus to the raspi. One doesn't car...

NebuCHADnezzarOP•8/30/24, 6:44 PM

I dont think that will fix my problem... I have powered the pi seperately as I said, but RatOS does not even recognize the board and manual flashing also failed

NebuCHADnezzarOP•8/30/24, 6:45 PM

I think the board is cooked tbh

TheTik•8/30/24, 6:54 PM

mm, forgot that part yeah

TheTik•8/30/24, 6:55 PM

Could try disconnecting everything from the octopus except the pi and see if it powers up and flashes

NebuCHADnezzarOP•8/30/24, 6:56 PM

I'll try that monday, the printer is at my workplace... I'll let you know if it worked or not

NebuCHADnezzarOP•8/30/24, 6:58 PM

but I mean I had flashed the board before I wired everything up...

so I really dont understand why it is like this now...

somehow connecting it to the power supply fried it I think but my wiring is correct, I have checked everything so many times

TheTik•8/30/24, 9:16 PM

Could have plugged/unplugged something while it was powered. I don't know how well protected the board is from voltage spikes

NNebuCHADnezzar I found out some of the pins seem to have 5 volt when I measure them, but the pi...

Jamorro•9/1/24, 9:01 AM

youll have a hard try frying a board from just static electricity. either it was a bad board from the start just waiting to die or something got shorted or had the polarity reversed.

NNebuCHADnezzar I found out some of the pins seem to have 5 volt when I measure them, but the pi...

Jamorro•9/1/24, 9:02 AM

im guessing you have flashed the board already? Can you try reflashing it through ither the pi or by using the sd card method?

JJamorro im guessing you have flashed the board already? Can you try reflashing it throug...

NebuCHADnezzarOP•9/1/24, 9:05 AM

yes the board was flashed and working

NebuCHADnezzarOP•9/1/24, 9:05 AM

but it wont take anything now

NebuCHADnezzarOP•9/1/24, 9:05 AM

not via RatOS and not manual

NebuCHADnezzarOP•9/1/24, 9:05 AM

it just fails

NebuCHADnezzarOP•9/1/24, 9:05 AM

the board is fried

NebuCHADnezzarOP•9/1/24, 9:05 AM

I am just trying to find out how it happened

NebuCHADnezzarOP•9/1/24, 9:05 AM

in my head I did nothing wrong

NebuCHADnezzarOP•9/1/24, 9:05 AM

so I dont understand

NebuCHADnezzarOP•9/1/24, 9:05 AM

I am also not new to handeling stuff like that

Jamorro•9/1/24, 9:06 AM

sometimes you just get a bad board

NebuCHADnezzarOP•9/1/24, 9:06 AM

and my wiring is definitly correct I have checked a million times by now

Jamorro•9/1/24, 9:06 AM

nothing you can do about it

NebuCHADnezzarOP•9/1/24, 9:06 AM

I read online that ppl are very dissatisfied with the quality of BTT boards

Jamorro•9/1/24, 9:06 AM

orly?

NebuCHADnezzarOP•9/1/24, 9:06 AM

yes

NebuCHADnezzarOP•9/1/24, 9:06 AM

I am not the first one

Jamorro•9/1/24, 9:06 AM

ive been using em for years and have had no issues

NebuCHADnezzarOP•9/1/24, 9:06 AM

I have had them too

NebuCHADnezzarOP•9/1/24, 9:07 AM

but apperently a lot of ppl are complaining about boards die for no reason

Jamorro•9/1/24, 9:07 AM

i mean even if you have a 0.1% failiure rate you will send quite a few bad boards when you are as big as btt

NebuCHADnezzarOP•9/1/24, 9:07 AM

I just really hope it did not fry the drivers aswell

NebuCHADnezzarOP•9/1/24, 9:08 AM

and maybe I get a replacement from RR? I dont know yet

NebuCHADnezzarOP•9/1/24, 9:08 AM

I was really careful... I really dont think it was my fault handeling it

Jamorro•9/1/24, 9:08 AM

id email em. Say exactly what happened

NebuCHADnezzarOP•9/1/24, 9:08 AM

ye I did

NebuCHADnezzarOP•9/1/24, 9:08 AM

waiting on answer

Jamorro•9/1/24, 9:08 AM

nothing to do then but chill a bit

NebuCHADnezzarOP•9/1/24, 9:09 AM

its just weird because it was working

NebuCHADnezzarOP•9/1/24, 9:09 AM

I had flashed it successfully

NebuCHADnezzarOP•9/1/24, 9:09 AM

and RatOS recognized it

Jamorro•9/1/24, 9:09 AM

but yeah if btt had some serious issues with reliability youd see many many more posts about it