not possibly recovery any app software?

Buy new one.

slots ok fine?

what other solution for recovery dead 4 mcs?

That does not deviate much from what it should be.

I tested the 7.6v of the cd-r drive but my PS2 Slim 90000 does not have an optical cd/dvd drive, I only use OPL in USB
in the test the digital multimeter scale 20v showed 0.0v-0.01v or -0.0v-0.01v

first test 4 and 5 pins Slot 1 was between 3.42V-3.44V and slot 2 was between 3.43V-3.44V.

i not tested i not have dvd drive optical reader i use some opl
its necessary?

What about 7V voltage is it correct?

I tested the console slots pins with the power on using a multimeter with a 20V scale on pins 4 and 5. Slot 1 was between 3.42V-3.44V and slot 2 was between 3.43V-3.44V.
Is the power supply for these PS2 Memory cards through the console adequate or not?

what pins metal in console i choose for two cables of digital multimeter connect for test?and scale multímeter?

Check if voltages are correct.

what pins metal in console i choose for two cables of digital multimeter connect for test?and scale

what values is good or bad? is necessary power on console?

There u go.

https://circuit-board.de/forum/index...66-pinout-jpg/

I only have a digital multimeter but if the test does not require a high level of knowledge I open the console and run the test but I do not know which scale of the multimeter and where to place the pointers to perform the test.

It's very possible, but that would require some rail measurements and console disassembly.

It's very strange, I thought it would be a problem with the console ps2 slim 90000 providing high voltage in slot MC and killing the MCs fast, but is that difficult to happen? The joystick and the two MC slots work.