3 beeps and unnormal fan RPM on S5520HC

Hello,

on my company wo bought a Intel S5520HC mainboard for a new server.

[hardware listing at the end of my post]

I installed the CPU´s, RAM, Raid cards, NIC and all the other stuff, but I got 2 serious problems...

First thing: There´s always a beep code everytime I boot at first the normal beep but then 3 short beeps, that indicates a

memory fault as i read, but i cant find an error. I almost tried every module configuration but the beep code remains the same..

As I installed Windows 2008 R2 Server I recognized, that the system is really unstable, sometimes I don´t even get to the desktop

or it doesn´t shut down correctly. And even when I enter Windows, it freezes sometimes during the use for 1 second...

I don´t know what to do know...

Second: I tried to install a newer BIOS, as I thought that would fix my error...but it didn´t, now there´s another problem.

I updated through the EFI shell and when I was prompted to enter FRUS and that stuff I made [maybe?] a mistake. Now

all the fans are in power mode, means, they operate at full RPM, that wasn´t before the update.

Hardware: Intel S5520HC mainboard, 2x Intel Xeon E5606, 6x 8GB Kingston Reg ECC Dimm 1333Mhz 1,5V, 2 Adaptec RAID cards

Maybe someone knows that error?

Thanks a lot in advance.

Best regards

Simon

Okay, I discovered, that the 3 beeps were coming from the USB initialization. So that one is solved now. But I still got that lacky performance...the system has still theese mini-freezes every 5 seconds and I just don´t know where they´re coming from...

help please..