Just bought a chieftec dragon case with a 360W PSU. I want to install a P4 3.0Ghz 800FSB Prescott with Asus P4P800D mboard, 512 400Mhz/PC3200 Ram, 2 80mm case fans, XFX geforce 5900 XT, 30GB Maxtor harddrive, PCI modem and Soundblaster 5.1 soundcard. Please can some1 tell me if this 360W power supply will do or will I have to shell out on another, more powerful one?
I've read one thread about PSUs and some ppl are saying 300W can run a P4 3.4Ghz with 1GB RAm, and radeon 9800!?!?! Yet others say you'll need at least 420W for an Athlon XP 2600+?!?! huh!?!?
Would be grateful if someone could clear this confusion up!
Most of my machines are in Chieftec cases with a Chieftec psu as issued. The power supplies of all of them cope quite adequately with anything that they are required to do. Most machine have 3 or 4 hard drives, at least two optical drives and assorted powered and unpowered USB/IEE1394 devices attached.
My only adverse comment is that they aren't the quietest in the world. This doesn't matter too much for us but if you have you computer in your bedroom, it may cause a bit of insomnia if left switched on.
As Dumble452 said it's only a guide but give you a rough idea and at the top of the page it says the following.
Please Note: The Wattages listed below are maximum potential wattages for each item. The total amount this calculator figures is for all devices running at peak utilization. It is important to bear in mind that this amount will never be reached under typical operation. However we feel that this tool will give you a better idea of how much power your system will need. After all when it comes to power, it is better to be safe than sorry. !!!!!