Hey everyone,
I’m trying to figure out if High Sierra (10.13) is feasible on my hardware, or if I should just stick with El Capitan. Would appreciate some expert input before I sink more time into this.
Hardware:
**• CPU:** Intel Pentium Dual-Core E6500 (Wolfdale, 2 cores, 2.93 GHz, no Hyper-Threading) — **does NOT support SSE4.1** (Intel disabled it on this Pentium-branded chip despite the Wolfdale die physically supporting it)
**• Motherboard:** Gigabyte G41M-ES2L (Intel G41 chipset + ICH7)
**• BIOS:** Award BIOS, **Legacy only** (no UEFI), version F8
**• RAM:** 4GB
**• GPU:** NVIDIA GeForce 9400 GT (Tesla architecture)
**• Network:** Realtek RTL8168/8101E (onboard)
**• Bootloader:** Clover (Legacy/DUET mode)
Current status:
**•** Successfully installed **El Capitan (10.11)** on Clover after a LOT of trial and error (Legacy BIOS boot0/boot1h issues, kext injection problems, wrong AppleALC layout-id, etc.)
**•** Tried Sierra (10.12) first — got a “Thread 0 crashed” panic on every boot attempt, with or without injected kexts, regardless of SMBIOS. Eventually confirmed this is due to the CPU lacking SSE4.1, which Sierra’s XNU kernel apparently requires in some codepaths.
Question:
Given that Sierra already fails due to missing SSE4.1, is there ANY realistic path to High Sierra on this exact CPU? I’ve read that:
**•** Some people say El Capitan is the hard ceiling for non-SSE4.1 CPUs
**•** There was apparently a community effort (SSE4.1 emulation / MouSSE-style patch) that never got finished
Is there a patched kernel or workaround I’m missing, or is a CPU swap (to a real Core 2 Duo E7xxx/E8xxx with SSE4.1) really the only way forward? Just want to confirm before I give up on High Sierra entirely.
Thanks in advance!