VMware ESXi 5 does not work with AMD FX-8120 Bulldozer CPU

**tHeDa!** · 23-03-2012

It seems to me that these two things don’t get along. My system is now with latest AMD processor and that is AMD FX-8120 Bulldozer. I have installed a latest version of VMware ESXi. When I try to boot a VM, the hypervisor itself will load but vsphere agent crashes. While crashing it shows me an error about the CPU microcode not existing and so on. I assume that this issue has something to do with the motherboard / bios. My motherboard is asus 990fx sabertooth.

**Jailekhaa** · 23-03-2012

My issue has been resolved during the next installation. My issue was during the first installation the microcode wasn't installed for the FX processor because I didn’t put the FX when it was installed. Still it was on older processor.

**Elucidation** · 23-03-2012

Here is my new system build

Antec Three Hundred Illusion
OCZ ZT Series 650W
Gigabyte GA-970A-UD3
AMD FZ-8120 Zambezi 3.1GHz AM3+ Eight Core
CORSAIR Vengence 2x8GB DDR3 1600
Sapphire Radeon HD 5450 1GB
Asus DRW-24B1ST/BLK/B/AS

Right now the system is installed with ESXi 5.0 and running it clearly. Luckily Realtek NIC was supported by ESXi. There were no issues at all. If your motherboards shipped with BIOS F3 or later, then it will only support AM3+ processors. I had it with F4. I changed the BIOS setting to make a proper order.