I've searched a lot to resolve the following issue, but nothing helped me.

My problem is, that starting up a first-gen vm locks up the whole host. Only a hard reset helps. Second-gen vm starts and runs perfectly. The freezes happened on 3 different vms. FreeBSD, Ubuntu, Windows Server 2008R2, while Windows 8.1 on second gen config works perfectly. Im using this pc mainly as a workstation. No eventlog errors nor dumps are generated.

My system:

• Windows Server 2012R2
• FX-8350, non OC
• ASRock 870 Extreme R2 (Crappy board imho)
• 32GB DDR3 1866@1600 (My motherboard, against the "support" for 1866ram won't work with full speed)
• 120GB SSD
• 4.5TB Storage space device

I dont think that its due to my system, because vmware workstation was running without problems.

Did I forget to configure something? Any help is appreciated.

P.S: Even deactivating C1E, C6, C&Q didnt work.

P.P.S: With no virtual network adapter set, the system still locks up. Creating a first gen vm without any hdds and network and launching works. Attaching a boot dvd causes the host to freeze.

The host freezes as the gen1 vm begins to boot, doesn't matter if from dvd or hdd