I've installed 4 Neo HE 500/550 units in ASUS A8N-SLI boards now ... with varying results. Ok, went home to check ...both current boards are 1.02 A8N-SLI Deluxe. Neo HE 500 v3.1 is on a board with 1 cheap grafx card, 4 Gigs ram, Athlon XP x2 4800+, 5 SATA 320GB HDDs, 2 DVD burners, and one PCI Slot...

I've installed 4 Neo HE 500/550 units in ASUS A8N-SLI boards now ... with varying results. But, I found a solution that works for me -- When monitoring the power, I see spikes/dips that cause the system BIOS HW Monitor to believe the power is out of spec, fans are out of spec, or temp is too hot. If...