Impossible to have more than 260° with ender3V3SE and Klipper

Hello,
I have installed Klipper on my Ender3V3SE, I have put max temp of 300° in the printer.cfg file, but when I try to use a temperature of 265° with my PET-CF, the system refused to continue above 260°. Is there an hard limitation on the printer board??
Thanks
Michel

Hi
Not sure but I don’t think the original hotend can reach 300.
I have changed for the Unicorn Hotend and I believe 300 is possible.
One caviat to this is I am not sure the SE power supply and wiring is up to the higher demands.