MVS 4 Slot Work RAM issue (Silly question, where is WRAM located on this board?)

[Tengugurl]

Hi!

Got a 4 Slot I am working on and I can't seem to find an IC map like you can for the AES. (Page I thought would had an IC map) https://wiki.neogeodev.org/index.php?title=MV4

TL;DR
Where is the Work Ram in the 43256 RAM assembly of the Neo Geo 4 slot?

I am getting the following errors *Attached
And I want to get in there and inspect for damage, continuity trace these RAM chips and replace if needed.

But don't know where the Work RAM resides: in the cluster haha
Also, super naive question WTH does it mean with:

WRAM Data (0000) --> is that location? like IC wise?

Address: 10080E
Actual: 0010
Expected:0000.

I know I need to learn how to use a logic probe but, curious if the address tells me which chip? Also any tips for a logic probe? I got one but need to learn/watch vids

Thanks!

 

[ack]

https://github.com/jwestfall69/neogeo-diag-bios/blob/master/docs/ram.md

 

[Tengugurl]

niceeee @ack FTW++++ thanks!

 

[Tengugurl]

so that was a quick fix and yay!
Replaced the Upper RAM and no change.
Replaced the Lower RAM and fixed <3