DDR1 vs DDRII

Code:
Core 2 Duo E4300@2700Mhz (300*9) 1.325V (Real 1.29V)
ASRock 775Dual-VSTA (AGP, PCI-E, DDR1\DDR2)
[ voltmod VAGP 1.6V@1.84V and VNB 1.35V@1.47V ]

Culer: Thermaltake Big Typhoon 1300

DIMM DDRII 2*1024Mb Kingstone KVR667D2N5 600Mhz 3-3-3-6 1T 2.00v (Dual)

Leadtek GeForce 7800 GS [G71] 256Mb AGP
Core 375@620Mhz VID-voltmod 1.1@1.3V (Real 1.33V)
Memory 1200@1400Mhz Ultra Low Timing's