Need help for repairing 30-pin ram boards

[RiP]

I tried to fix my faulty ram boards by replacing the 4Mbit DRAM chips but got no success
Should I replace the parity chips too? (in the cyan box)
There's one SMD under each chip too. Is it resistor or capacitor? and possible to test them?

[RiP]

Ok, I'll try to replace the parity chips too but I thought Amiga doesn't care about parity :confused:

Unfortunately these rams are rare here and I need them to fill my GVP A2000 HC+8 =/

[RiP]

I know but it's rare here and shipping costs so much.
It's easier for me to repair.

[RiP]

Seems easy enough to replace.  At least for me anyway.

Well, I changed the parity chips but still no luck