My server seems to be operating just fine, but the chassis warning light is lit and upon a reboot, the board (S5520HCV) throws out three beeps. This indicates RAM is bad. Is there any way to tell 1) if the RAM is actually bad, and 2) how I can tell which of my 6 DIMMs is actually the bad one?
If the OS sees the correct total memory capacity, I wouldn't worry about the beeps. See http://www.intel.com/support/motherboards/server/sb/CS-031644.htm Intel® S5500 and S5520 Server Boards: Not all beep codes signal an error.
For the warning LED, you can check the http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17933 SEL first.
The beep codes are not the USB devices initializing, they are BIOS beep codes. Specifically three long ones that indicate memory issues.
The SEL shows: CRITICAL event: Mmry ECC sensoe reports uncorrectable error. There has been an uncorrectable memory error for the memory module CPU_2. Channel = D. DIMM = 1.
The OS (Windows SBS 2008) does show the full memory amount.
So, I should assume that D1 from the diagram below is defective?