Will power supply fail?

I've got 3 hard drives in my computer and 4 assorted optical drives. I have a powersupply which can power 6 of these and a splitter so I can split one of the outputs of the PSU. I'm wondering if this will overload it; if so, what would be the adverse affects on my machine?

Specs:

Pentium 4 1.80ghz
512mb DDR
ATI Radeon 9200 128mb ddr
100gb HD
2x 160gb HD
2x CD Burners
2x DVD Burners

Additionally, does anyone know of a good website that may tell me how many watts I'll need if I choose to buy a new PSU?

Thanks in advance.

Whats your current PS?

What is the spec of your power supply?

http://www.jscustompcs.com/power_supply/

Why do you need 4 CD Roms?

he doesnt have 4 cd-roms. he has 2 cd burners, and 2 dvd burners

A DVD Burner will burn a and read a CD, so why does he need 4 devices with the same purpose. The 2 DVD burners will fit most peoples needs.

burning four seperate disks?

that is part of my point, if he is going to be doing something like burn 4 disks at once, it is going to put more strain on the power supply.

Yeah - I play in bands (bass guitar) and end up having to burn lots of demo discs, etc. Also, I can copy DVDs very efficiently with 2 DVD +/- RW drives.

Anyway, the one I was going to replace it with is only 250w. Don't know why it can power 6 devices; I was expecting about 350.

By the way - I took that test and it said I need 370 watts (I factored in another 50 watts for my other 2 optical drives; it only supports 2). This should be a major overload for my current 250w power supply. Why isn't anything failing? Am I missing something here?

Additionally, should I make sure I buy a PSU with a higher wattage then my recommended wattage from that test thing? Probably around 400-450?

Thanks in advance.

i dont think more power ever hurt anyone...except anakin skywalker.

The values in that calculator are peak values. To hit that, every part of your computer would have to be maxed out. If you were burning 2 dvds, ripping 2 CDs, playing a high graphics game, recording some audio, defraging your hard drives, doing a memory test, and doing a CPU burn in... all at the same time, you might hit that max. For normal day to day use, I doubt it. If you really want to know, get an ammeter and measure how much current draw your computer is really pulling. I bet it is way under 250w when used day to day.