Power Macintosh 7500 thinks it's an 8500

[Matlaw]

Hi, after trying to clean very stubborn flux residue the Gestalt ID changed from 68 to 69 and now every software displays the wrong Macintosh model. Before the disassembly, isopropyl soaking and scrubbing it was showing the correct ID.
Tried resetting the Cuda chip, starting with and without the PRAM battery and no dice
There are no schematics for the TNT architecture, so I can't check if it's the matter of a short, missing resistor or something else.
Can the Gestalt ID be software controlled? I really hope I didn't screw up anything on the board. Thanks in advance for any help

 

[Phipli]

Hi, after trying to clean very stubborn flux residue the Gestalt ID changed from 68 to 69 and now every software displays the wrong Macintosh model. Before the disassembly, isopropyl soaking and scrubbing it was showing the correct ID.
Tried resetting the Cuda chip, starting with and without the PRAM battery and no dice
There are no schematics for the TNT architecture, so I can't check if it's the matter of a short, missing resistor or something else.
Can the Gestalt ID be software controlled? I really hope I didn't screw up anything on the board. Thanks in advance for any help

Did you plug something into the LED header on the board?

That is what tells the computer if it is a 7500 or 8500.

 

[Matlaw]

Did you plug something into the LED header on the board?

That is what tells the computer if it is a 7500 or 8500.

I didn't plug the LED back in, because I'm trying to model a new LED holder (gotta love old ABS+FR).
So that's what the loop's for.
Thank you, thank you so much and gosh, now I feel stupid