I'm building a computer for a friend on a pretty tight budget, a budget that has pushed me into choosing a 425W Hiper PSU with only one pci-e power connector. As you probably guessed from the thread title I want to put a 9800GTX+ in the system which of course wants two connectors. Do you think it would be safe to use a 2 molex to pci-e adaptor to power. The rest of the components are pretty low power: a gigabyte ga-73vm-s2 motherboard, single hard drive, single dvd writer, pentium D cpu (2.5 wolfdale) and two sticks of ram.
NVIDIA recommend a 550W PSU but according to X-Bit the card draws just under 120 watts, so if the motherboard supplies around 50W like it should being a PCI-e 1.x board the cards should only draw 70W directly from the PSU which should be fine with only one connector.
I guess all this info is somewhat conclusive but a second opinion would give my confidence a boost
I suppose the second connector is just there in case the motherboard doesn't want to give any and if use the right rails then all should be good