HP 250
Plate ASL50 LA-C921P REV. 1
CPU: A5405794SR2EY
GPU: Integrated
EC: ENE 9022Q


The board turns on, the fan starts, no image on the matrix and on the external monitor.
I changed RAM, I programmed the BIOS with a certain charge, the power consumption with the switch on without batteries is kept at around 0.44A.
Voltage from coils when the board is on and resistance to mass off.


PL202 3.1V 4.6 MOhm
PL407 1V 42.0 Ohm
PL1206 1.1V 9.0 Ohm
PL1203 0V 2.7 Ohm
PL1205 1V 3.8 Ohm
PL8 5V on the other side of the 10V Mega Ohmy coil
PL9 3.3V 9 kOhm
PL11 1.1V 320 kOhm

Low resistance PL1203 is on the CPU side.
The processor power transistors are operational.
I have no ideas, no scheme

Try to use a post-card

i think bios problem, find 100% working tested dump

Bios checked unfortunately unchanged