I happen to have AN430TX 256K version but I need to keep the board since it has yamaha OPL with general MIDI chipsets for DOS use. On this one, wanted to change the cache from 256K to 512K.

Happen to have the cache chips on a proprietary SBC board as parts with two 64K x 32bit to pull from.

But I don't know the resistor network to reconfigure for 512K on this board.

Here's a request: If you have 512K cache of either AN430TX or LT430TX, a detailed pictures around the cache chips and TX chipset is needed.

Thank you and cheers,