I bought two of these to go into my Server along with the other two 1GB DDR2 SDRAM 667 sticks. I've tried seating them a few times and they don't work. I've tried it by itself, doesn't work, I've tried reversing with the 1G sticks in slots 1 amd 2 with the 2G sticks in 3 and 4, and nothing. Every time I get the 1-3-2 beep. When I revert to just the 1G sticks, works fine. Any ideas? perhaps ECC registered vs what the hardware manual says, unbuffered?
I've read that removing the MB battery will reset the BIOS and may work. Suggestions?