RAMPS 1.4 Mega 2560 Keeps Frying!!!

RAMPS 1.4 Mega 2560 Keeps Frying!!! hello everyone, So for some reason my first ramps board decided to fry, for no reason what so ever. So i ordered a replacement Arduino and ramps board, once wired correctly i powered it on and the LCD didn't turn on, then after about 5 seconds, i was greeted with MAGIC SMOKE from the mega, it looks like the voltage regulator on the mega had fried as it had a burn mark. So after much door kicking i ordered another mega, but after connecting THAT FRIED again! After reconnecting my door to its hinges i then, looked into why it was frying for the next 3 hours, and found nothing that could help, So i came to the conclusion that my ramps board was defective, so ordered a whole brand new kit. But, surprise surprise, this FRIED ASWELL!!! Please, what is happening here! All the connections are correct and are not shorting out I have soldered D1 onto the board correctly Bed resistance is correct Stepper drivers are in correct my ATX psu is outputting about 12.2V, which should be fine I have tried removing D1 so that the Mega is powered via a USB connection, but again i get no LEDs no nothing.... However when disconnected from the ramps board the mega powers up fine... So here i cam with 3 fried megas, and 3 currently useless ramps boards, please what do i do... https://reprap.org/forum/read.php?219,614523,614523#msg-614523 Mon, 15 Jun 2026 06:49:06 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?219,614523,617797#msg-617797 Re: RAMPS 1.4 Mega 2560 Keeps Frying!!! https://reprap.org/forum/read.php?219,614523,617797#msg-617797

Quote
32bitbrad
hello everyone,

So for some reason my first ramps board decided to fry, for no reason what so ever. So i ordered a replacement Arduino and ramps board, once wired correctly i powered it on and the LCD didn't turn on, then after about 5 seconds, i was greeted with MAGIC SMOKE from the mega, it looks like the voltage regulator on the mega had fried as it had a burn mark. So after much door kicking i ordered another mega, but after connecting THAT FRIED again! After reconnecting my door to its hinges i then, looked into why it was frying for the next 3 hours, and found nothing that could help, So i came to the conclusion that my ramps board was defective, so ordered a whole brand new kit. But, surprise surprise, this FRIED ASWELL!!! Please, what is happening here!

All the connections are correct and are not shorting out
I have soldered D1 onto the board correctly
Bed resistance is correct
Stepper drivers are in correct
my ATX psu is outputting about 12.2V, which should be fine

I have tried removing D1 so that the Mega is powered via a USB connection, but again i get no LEDs no nothing.... However when disconnected from the ramps board the mega powers up fine...

So here i cam with 3 fried megas, and 3 currently useless ramps boards, please what do i do...

I have upgraded to a duet 0.6 board for my 3dprinter. I can sell you my working ramps 1.4 arduino board and LCD for cheap if you are interested? The board comes pre-placed into a printed case. the LCD also comes in a printed case.]]> DRTak RAMPS Electronics Fri, 29 Jan 2016 16:27:29 -0500 https://reprap.org/forum/read.php?219,614523,614601#msg-614601 Re: RAMPS 1.4 Mega 2560 Keeps Frying!!! https://reprap.org/forum/read.php?219,614523,614601#msg-614601
You unplugged USB when connecting ramps to the mega?(making sure)

You mention ATX and 12v psu. Is it one of those LED things?

I have had several megas and never had to solder D1 on. Everything was always in place.

Mayby one of your drivers are faulty or you put then In in reverse.]]> dintid RAMPS Electronics Sat, 23 Jan 2016 17:55:32 -0500 https://reprap.org/forum/read.php?219,614523,614572#msg-614572 Re: RAMPS 1.4 Mega 2560 Keeps Frying!!! https://reprap.org/forum/read.php?219,614523,614572#msg-614572 Anonymous User RAMPS Electronics Sat, 23 Jan 2016 16:49:09 -0500 https://reprap.org/forum/read.php?219,614523,614562#msg-614562 Re: RAMPS 1.4 Mega 2560 Keeps Frying!!! https://reprap.org/forum/read.php?219,614523,614562#msg-614562 gmckee RAMPS Electronics Sat, 23 Jan 2016 16:30:46 -0500 https://reprap.org/forum/read.php?219,614523,614523#msg-614523 RAMPS 1.4 Mega 2560 Keeps Frying!!! https://reprap.org/forum/read.php?219,614523,614523#msg-614523
So for some reason my first ramps board decided to fry, for no reason what so ever. So i ordered a replacement Arduino and ramps board, once wired correctly i powered it on and the LCD didn't turn on, then after about 5 seconds, i was greeted with MAGIC SMOKE from the mega, it looks like the voltage regulator on the mega had fried as it had a burn mark. So after much door kicking i ordered another mega, but after connecting THAT FRIED again! After reconnecting my door to its hinges i then, looked into why it was frying for the next 3 hours, and found nothing that could help, So i came to the conclusion that my ramps board was defective, so ordered a whole brand new kit. But, surprise surprise, this FRIED ASWELL!!! Please, what is happening here!

All the connections are correct and are not shorting out
I have soldered D1 onto the board correctly
Bed resistance is correct
Stepper drivers are in correct
my ATX psu is outputting about 12.2V, which should be fine

I have tried removing D1 so that the Mega is powered via a USB connection, but again i get no LEDs no nothing.... However when disconnected from the ramps board the mega powers up fine...

So here i cam with 3 fried megas, and 3 currently useless ramps boards, please what do i do...]]> Anonymous User RAMPS Electronics Sat, 23 Jan 2016 15:17:20 -0500