After installing Mac OS X 10.5.8 (iDeneb) on my machine (spec below) everything worked just fine except I often used to get sytem restart while booting, after the chameleon loader screen. I saw in this forum and modified the boot.plist by adding cpus=1 flag in it. Now everything works fine and I don't get those restarts again but now Mac os x takes longer time to boot than it was before. Is it due to the cpus=1 flag I added ??? What exactly does this cpus=1 means ????

System Spec.
GA-G31M-ES2L(Mobo)
Intel PentiumD 820 (CPU)
2GB 667MHz DDR2 (Transcend)
Seagate Baracuda 250GB SATA
RTL 8139C PCI Ethernet Card