Mikronik 6960 5.0 Z3-ISA version

merlinkv

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Hi

Anyone nows about the power consumption of A4KD using the Mikronik 6960 Z3/ISA?

My first idea is to install (maybe not, I have two projects in mind):

- CS MK-II 060/50 128 MB
- CS MK-II SCSI Kit
- ZoRAM
- IO Extender
- Tocatta
- V-Lab
- RTG Z3 board
- Invisivion AGA 4000

And maybe more.....

I want to use one ATX PSU 600w with 26A on 5v with one adapter cable. Maybe I find power issues?

Thanks
 

fitzsteve

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I don't think you'll have issues with that on 600w PSU, I'm running in my A4000D, Apollo 4040, PicassoIV, Tocatta, Buddha IDE all on the stock PSU without problems.
 

Zetr0

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@MerlinKV

my friend, unlike the PCI Mediators / GRex's the Z3 backpanes are passive - they are driven by the A4000 motherboard in this case.

The power is only used when a card is inserted - so if there are no card installed on the busboard - no power is being used.

Ironically its not the Adapter Cards / Accellerators that use the most power - but Hard Disks do - the older they are the more power they suck - in some cases over 28 watts each ripped from the +5v!

most modern 3.5" IDE hard-disks only use about 15 watts max

the A4000 motherboard is very low-powered and like the A1200 hardly sees 20 watts of juice - however the moment you put on adapters and accelerators this will increase.

The Original A4000 PSU came in two flavours 150watt and 175watt - back in the day when these PSU's were new - that was plenty of juice for an accellerated and Dual HDisk Amiga with a snd / network / gfx - but today..... no...

The original PSU's were not designed to run for 10 years - since most are about 15 years old now - as such its going to struggle with a loaded system - this will be presented with random crashes and guru's

Unfortunately replacing the unit with a modern 175watt PSU wont cut the mustard either - as its output in current will likely be too deficent for the A4000's needs.

Since you are using a nice 600watt monster then this will provide good quality power to all your internal components - infact I would be surpirsed that at maximum a quarter of its power is used - which although might be a little overkill - the PSU isn't going to be taxed that hard - thus prolonging its life expectancy as well provide very good - clean power rails =)
 

merlinkv

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Hi

Thanks to both for the information...

@Zetr0

I have two PSU's one 600w (26A-5v) & other 400w (20A 5v). Reading your post I think the best is to use:

- 600w on A4K with Mediator & CSPPC +....
- 400w on A4K with Mikronik & CS MK-II + ....

This configs, shoud be work OK, right?

Thanks again my friends (y)
 

Zetr0

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@merlinkv

indeed my friend, the CSPPC will draw a little more juice than the CSm2, however both power supplies are more than capable for either operation =)
 
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