LowPowerLab Forum

Hardware support => ATXRaspi => Topic started by: DaveWatson on January 11, 2026, 03:13:47 PM

Title: Voltage drop across ATX board
Post by: DaveWatson on January 11, 2026, 03:13:47 PM
I am getting a power loss across the board. The voltage checked with voltmeter on the contacts of the board show 5.294 and the output also checked with voltmeter at the board is 4.840. I am getting a low voltage to the pi warning, and the red led is not illuminating on the pi. All solder joints checked. Any thoughts on how to fix this?
Title: Re: Voltage drop across ATX board
Post by: Felix on April 16, 2026, 01:45:09 PM
Somehow I did not see this post until now. It's important to keep all connections very short and with very good quality wiring, thicker wire to reduce any drops across wires.
A 4.8v should still power the Pi without much issue, unless there are more significant drops during heavier load, which are not apparent or easy to spot with a multimeter.
Which ATXRaspi revision was this?