Hello.

What software exist for testing EP hardware (which can be loaded from the tape)?

Sorry for silence.
I wanted to check the chipset, because sometimes appear strange freezings.

No. I don't have a flasher to write EPROM.
And secondly I'm afraid to disassemble the computer, due to a very short connectors of keyboard membrane.

If you do not complicate to make the downloadable version, I will be grateful.

Let's try it!
It is the same as the cartridge version of my test program, starting with cold reset with Advanced RAM test enabled. At "TESTING REFRESH" left the machine running for minutes or hours, then press any key.