Intel® Core™2 Q6600 Quad-Core (8MB L2 cache,2.4GHz,1066FSB)
Genuine Windows Vista® Home Premium w/ Digital Cable Support SP1
23inch moniter
Single Drive: 16X CD/DVD burner (DVD+/-RW) w/double layer write capability
3GB Dual Channel DDR2 SDRAM at 800MHz - 4 DIMMs
320GB1 - 7200RPM, SATA 3.0Gb/s, 16MB Cache
PowerColor Radeon HD3650 1GB DDR2 PCI-E 2.0 Video
Integrated 7.1 Channel Audio
4 gb ddr2 800 mhz dual channel memory
500 watt power supply started as 375 w
what i want to know is if 500w is enough to power the new cards, ram and video and also if the xps 420 supports pci express 2.0 x16 thanks for the help