kernel:Kernel panic - not syncing: Fatal exception

Hi there,

i've got a new server with a i7-3930K and 64GB RAM. Storage is on Adaptec6405E.

pveversion -v
pve-manager: 2.2-32 (pve-manager/2.2/3089a616)
running kernel: 2.6.32-17-pve
proxmox-ve-2.6.32: 2.2-83
pve-kernel-2.6.32-17-pve: 2.6.32-83
pve-kernel-2.6.32-16-pve: 2.6.32-82
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.4-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.93-2
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.9-1
pve-cluster: 1.0-34
qemu-server: 2.0-72
pve-firmware: 1.0-21
libpve-common-perl: 1.0-41
libpve-access-control: 1.0-25
libpve-storage-perl: 2.0-36
vncterm: 1.0-3
vzctl: 4.0-1pve2
vzprocps: 2.0.11-2
vzquota: 3.1-1
pve-qemu-kvm: 1.3-10
ksm-control-daemon: 1.1-1


dmidecode:
System Information
Manufacturer: MSI
Product Name: MS-7760
Version: 2.0
Serial Number: To be filled by O.E.M.
UUID: AAAAAAAA-AAAA-AAAA-AAAA-D43D7E553DD4
Wake-up Type: Power Switch
SKU Number: To be filled by O.E.M.
Family: To be filled by O.E.M.


Is this a known bug or something else?
What can i do to make this server stable??


Big thanks for looking into my problem


Greetz
MasterTH