Scorpion ZS-256 - problems with turning on.

I started to turn on Scorp - I see the following:

Shadow writes a message about the hardware found (sometimes it hangs right here), after which
there are two wide vertical white stripes on the screen and everything hangs. Sometimes the start menu still appears, but without the menu itself, i.e. below "Scorpion ZS-256
1992 - 1997" but there is no menu itself and it does not respond to buttons.
I press Ctrl+Alt+Del - it starts again, although sometimes it reacts to the Reset button
every other time, sometimes it doesn’t react at all.

Sometimes I manage to catch it on this start message with a magician, a shadow
climb through the banks - everything seems to work, I do it j0 - again the same tricks.
Replacing the processor does not help.

200 W power supply from a very old XT. There is a suspicion of unstable voltage from the
BP. Could this be?

WBR, Jason.

/*e-mail: jason2000(scary dog)yandex.ru ICQ: 62235830*/

/np:/ *silence*