The new Haswell CPU from Intel is now available and therefore we could run some tests with this new CPU. The tested model of the CPU was a Core i5-4570. OS/2 can work on this kind of CPU but at the moment it looks like there is a SMP problem with the ACPI PSD driver that prevents the use of all CPU cores, thus with only one core enabled everything functions correctly and the system boots just fine.
OS/2 desktop running on an Intel Haswell Core i5-4570 CPU
warpcity2 