Hi everyone, I'm trying to modify a couple of these slotkets. Maybe someone has already worked with them and can help

Motherboard - Soyo SY-D6IBA Rev 2.0
https://theretroweb.com/motherboards/s/soyo-sy-d6iba-rev-2-0

I had previously tried modifying a pair of Chinese 370CPUs, which I did successfully, but they refused to work together in Windows XP—it just kept crashing with blue screens. And when it did boot up, the system detected two processors but only used one.
Previous topic:
Slotket 370CPU SMP mod

So I decided to modify another pair of GA-6R7+ rev. 1.1, I performed the FCPGA2 mod and SMP mod, routing the b75 (slot 1) to N33 (socket 370). During a cold boot, the system would post every other time or more, and Windows would crash with blue screens. After reading some forums, I removed pin AN15, and Windows began to run stably on both processors during boot, but they still post every other time or more, and during a soft or hard reset, it gets stuck on the F5 post or others.
Each of the GA-6R7+ slotkets posts normally and reboots during a soft or hard reset individually.

Could you please suggest what else I can do, or look for a couple of other slotkits for this mod.