The collected works of finkmac

A few months ago, I noticed a Kijiji ad for an "IBM 6611 Network Processor 140".
It looked like an RS/6000 in the pictures, and I don't have any RS/6000s, so I was interested.

After a mulling it over several times, I went down and got the thing, and used the trip as an excuse to also pick up an IBM 8226 MAU.

Pictures

From what I can tell, it's a rebadged RS/6000 320, with dual 160MB hard disks and four special MCA cards.
Three of the cards are Token Ring adapters, and the fourth is a dual serial card… All of the cards have Intel i960s and a RAM SIMM slot on them.
Also, it uses funky square serial ports, so I don't have any way of display what it's doing, apart from that diagnostic LCD.

I was able to find this Technical Manual, which I have yet to dig through.

The RAM card inside has 8 slots, all of which were filled when I got it, the two top slots were filled with two 16MB EDO RAM SIMMs, which I don't think work in these machines, and the other sticks were IBM "68X6271" 2MB SIMMs.

With the two EDO RAM sticks installed, the LCD display would stop changing at 213 (I believe) which is supposed to mean "bad memory board or processor planar", after removing the sticks (and shifting the rest of the SIMMs up) the LCD displays the following codes:

120 122 124 101 153 154 100 211 214 <flashing 888> [Disk spinup]

Now, after the 888 starts flashing, pressing the reset button cycles through the following codes

103 104 209 c01 100 200 300 413 500 600 700 800 <flashing 888>

Which apparently means something wrong with the RAM, I've shifted/swapped all the IBM 68X6271 RAM, and nothing has changed at all.

What's up here? What do I really have here, a router?
Is this even supposed to run AIX?

How am I gonna fix this?
I used this document to decode the error, and it seems the entire card is bad?
Or something is wrong with "Memory card in slot C on the CPU planar".

I've already tried arranging the RAM in different locations on the card (as the 320 service manual was no help whatsoever).
Anybody know the proper way to fill one bank of RAM on the 59F4433 card?