Dual Socket Results in Cpu Reboot | Dell T5500 x5675 Working Fine With 1 Cpu

[Qazi Abdullah]

As the title says, the issue with my hackintosh is that I am unable to use Dual X5675
I created the hackintosh with 1x x5675 and recently bought the 2nd cpu and cpu riser to put in it.

I am unable to boot the system. It keeps rebooting at verbose.

Disabling hyperthreading works and I am able to boot with 12c and 12t
Enabling hyperthreading doesn't work. I am unable to boot with 12c and 24t.

Here is the efi link: https://github.com/qaziabdullah/EFI-Dell-Precision-T5500

 

 

Fixes that i tried
1- CpuTscsync:
I added cputscsync and if i turn off hyperthreading with that added, I get a bootloop where the system boots fine without it
If i add cputscsync and turn on hyperthreading, I get the same reboot issue which i get without cputscsync
It seems that Cputscsync is not playing any role in this.

 

Hyperthreading works with 1 cpu and as soon as 2nd is plugged in, it gives this issue

2- DSDT (removing extra cores)
3- Tested Bigsur, same issues
4- Tested Ventura too, same issues

Any ideas how can i get this working?

 

System reboots at the attached screenshot's error lines
Sometimes I get Kernel Panic which is when i change EFI (if i am using EFI of SSD and it reboots, upon reboot i change EFI to USB's EFI and i get kernel panic)


Some history:
Initially the hackintosh was made with 1 cpu and nvidia quadro k600
Upgraded to RX570 with 1 cpu and everything was working fine
Got the CPU riser and 2nd cpu, added it thinking that it should boot fine; it didn't
Booted linux to get new SSDT and DSDT files with 2 cpus
updated EFI, still having the same issues.

I see benchmarks on geekbench 5 from users with dell t5500 hackintosh using 12c24t just fine

But those are from high seirra mostly? Idk if something changed in recent versions. If anyone can point out something, it will be great.

It reboots after this.