i have a 256mb graphics card i want to put in my pc, but i have only the 20 pin in the motherboard do i need the 24 pin to run the gc? the graphics card doesnt even have a fan just a heatsink
Older motherboards used 20 pin PSU connectors, almost all modern boards now use 24 pin This has nothing to do with the video card, just the motherboard
If it's a 20 pin power motherboard with the appropriate slots, then it should be fine. The 4 pin P4 separate power connector supplies the CPU power over a further two 12V wires, and the single 12V wire on the ATX motherboard power serves everything else. The ATX 2.0 specification extended the connector to 24 pin, carrying an additional 12V wire (much needed for future proofing) and rather unnecessary extra 5 3.3v wires. A fanless graphics card is unlikely to tax the available power
You need the 24 pinn connector for the computer to work at all. You need 1 or 2 PCI-E connectors for the graphics card to run. Some cards don't need a PCI-E so you just drop it in the x16 slot download the drivers and your good to go.
