Cluster Server 5.2 Aventurine Cluster Server 5.2 Aventurine another issue

Cluster Server 5.2 Aventurine another issue

On the Cluster Server 5.2 Aventurine we have another Problem
after install of the OS which gos just without error.
after reboot upon the OS installation Server does not boot from the drives but is asking for the boot from the CD
and I have no problem with cluster 3.8
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Hardware the same as we did try the aventurine standard

Pentium 4 3.0Ghz with Hyper Threading (HT) enabled.

2 GB RAM installed.
KVR533D2E4K2/2G
DESCRIPTION: ValueRAM's KVR533D2E4K2/2G is a kit of two 128M x 72-bit (1GB) DDR2-533 CL4 SDRAM ( S ynchronous DRAM ) ECC memory modules. Total kit capacity is 2GB

Two (2) brand new 500GB Seagate server class hard drives installed!!

Model: ST3750640NS

Server is configured as RAID 1 (Mirror), 500GB on Volume0, 648GB on Volume1(as pictured).

http://www.supermicro.com/products/system/1U/5014/SYS-5014C-T.cfm

Manufacturer: SUPERMICRO