ATX power supply, What size?

[Reflex]

Hello, I'm experiencing problem with my power supply once again.
It's broken though I changed it only a few mopnths ago, I'm beginning to think that is'a a problem of power consumption.
In you opinion what size should be my next power supply?
this is my configuration:

A) Boards
- Amiga 4000D Motherboard
- CyberstormPPC 060/66mhz - 604e/200 Mhz 128 MB ram
- Mediator 4000D Busboard and bridgeboard
- Picasso IV
- Fastlane Scsi
- Delfina Lite
- Voodoo 3 16 mb PCI
- RTL 8139 Ethernet PCI

B) SCSI Peripherals
- Quantum Atlas 9 8 GB SCSI3
- Fujitsu 68 GB SCSI3
- internal Iomega ZIP 100MB
- Internal Iomega Jaz 2GB
- DVD-Rom Pioneer
- Cd-Burner Yamaha 6x4x24

C) Ide peripheral
- hard Disk Maxtor 3,5" 20 GB
- Compact flash Adapter with 4GB CF (removable)

D) Other
- Original Amiga Floppy Drive
- one 5cm Fan with led

What do you think? How many watts Do I need?

[Reflex]

well I think that the starting point is the natural consumption of my configuration in order to find the optimal power I need. then I can investigate about the power rails.

As I'm quite ignorant in this subject I think that I have to approach the situation this way.

Ebay links even in private email are welcome

[Reflex]

300W will be more than enough. It's a common mistake to get a PSU with huge wattage when you don't really need it, so try to avoid that.

well the power supply that I have now is 240 watt...
moreover I made a fast simulation on a internet site that provided some kind of evaluation and it told me that my configuration has an estimated consumption of 435 Watt

So I think that I'll go for 600 Watt, taking a cheap power supply for now.

[Reflex]

Well i have to agree with piru this time(did i say that??)that 600w is probably way overkill, for example,i picked up a high quality 380 watt for my 4000 mediator setup which is completely loaded with cards.. spend the money on quality. again wattage doesn't tell the whole story.

mech

well, now I'll spend some money to send the Motherboard to the Amiga Repair Center to solve some minor issues, I'll buy amigaOS 4.1 and the Radeon 9200 (if someone sells one them send me an email!), so I can't afford 60-100 euros for a quality power supply, I'll buy a powerful one thinking to change it next year.

anyway it was a service like this: http://www.thermaltake.outervision.com/index.jsp
remember that I have A LOT of 3,5" devices!

[Reflex]

I made another simulation and it tells me that for a 100% load I need a 667 mhz power supply O____O

Ok I'll go for a 800 Watt power supply

[Reflex]

Not really. I ran 6 3.5" HDDs, ZIP-100 drive and a CD-RW with a 300W PSU.

it's quite the same than mine.
But what about Zorro3 and PCI Card?
CSPPC?

I think that the PPC, being a dual CPU board, is very power hungry