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?

Don't go by watts alone, this does not tell much. you need to look at the break down of the power rails.you can usually find the website of the mfg and check there.Specifically +5v,which is where you want as many amps as you can get.You also need to look if this rail is shared with others,this will cut down on the rating. A power supply with "seperate" rails for each voltage(at least +5 and +12) would be better.stay away from the cheaper chinese psu's,most are junk, i think i have been thru most of them and they make it a year or so on the good side,some have filtering so bad they can cause crashes and other odd behavior. I would suggest you check out some of antec's offerings. they seem to make a reasonable psu(although they do have a bottom end line too).  There is no such thing as too many watts though,and basically you can put the biggest rated psu you can afford in it.The A4000 will only take what it needs.  

Mech

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

I know you definitely shouldn't use TakeMe: http://www.elektroda.pl/rtvforum/topic1983518.html

Or any other cheap PSU: http://www.elektroda.pl/rtvforum/topic1199271.html

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.

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.

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

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

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

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