RalfK is right.

Unity, I agree but... lets continue else where for a moment...

Tanuki65 - Here is the pin outs to the floppy port of any given Mac with external floppy drive:

https://support.apple.com/kb/TA48050?locale=en_US&viewlocale=en_US

In it pins:

1 to 4 is CGND - Chassis ground

5 is -12V

6 is +5V

7 is +12V

8 is +12V

9 is N/C Not connected

With the Mac IIci closed and turned on, how are you going to check for voltages from your powersupply in the inside of your machine? You can't. You measure the voltages from the floppy port at these pin numbers. Any reading other that what is stated means that there is something wrong with the board or PSU. Since the board was recapped by an expert, then the problem is with the PSU. But to figure that out, you need to measure it and see it.

Now - if all the voltages are on point and rock steady - then the problem is with the RAM.