A1200 Power Supply Recommendations

[bubba]

I've read alot about power issues with A1200D's using the original power supplies. I'm currently upgrading my A1200D piece by piece and am concerned I will run into power problems soon.  

Can someone make a recommendation for a power supply for my A1200 with the following configuration:

A1200D
Internal 2.5" HD
Internal Floppy
External Floppy
PCMCIA Device (Ethernet or Surf Squirrel)
030/40 mhz accelerator w/32MB

Will the standard A1200 PSU provide enough juice, or should I get an A500 PSU?  If not, what options do I have?

Thanks!

[Harlbro]

If you're like me and wish to keep your desktop A1200's original cuteness (i.e. don't want to tower it) but still want to upgrade it a little, the standard PSU is a problem. Once I acquired a 68040/25 accelerator (along with 64Mb RAM, 4Gb 2.5" HDD and 3Com ethernet), the A500 PSU I was using couldn't handle it. I ended up getting my hands on a converted PC PSU. Actually, I have two A500 PSUs but they were both pretty old and needed replacing. So I say get your hands on an old PC AT PSU (<486 or early Pentium) I think are easiest to convert. I know it's pretty simple, does anyone have the instructions (for laymen like me) for converting an PC AT PSU to a standard plug for A500/A1200? I've got two lying here I need to convert.

[adolescent]

Montek in Canada sells an inexpensive adapter that converts a PC AT to the A500/A1200/A600.  

http://www.montek.com/cart/product.php?productid=27706&cat=0&page=1

[icbrkr]

I'm running close to the same setup and haven't had an issue with the original power supply:

Amiga 1200
68030/50Mhz w/MMU
32MB Fast RAM
6GB Internal drive
Floppy
External Floppy
10 BT PCMCIA NIC

Brian

[blobrana]

Hum,
But when you do...
you can always splice one up yourself...

It`s easy, and with only minimal risk of death. Just have a search on google.com for instructions on how to join up a AT pc supply to the amiga, using its own cut lead...

[color=808080]BTW, Anyone notice how  Montek`s site always has 5 users online? [/color]

[Beowulf]

Does this powershot adapter come with a case or something you put the power supply in?

[SamuraiCrow]

Nah, just run it open-frame.  If you want a tower kit order a tower kit.

[Harlbro]

Ahh, this is what I was looking for:
ftp://de.aminet.net/pub/aminet/hard/hack/ExtraPower.lha

This one is only for AT PSUs not ATX. There are other instructions for working on ATX PSUs, of which seem cool cause you can poweroff your machine through software.

[guest1955]

If you want to splice the original PSU up to an AT power supply, this is the way I did it for my 1200.

The 1200 PSU wiring is:
Black = Common
Red   =  5v
Brown = +12v
White = -12v

These were patched into the auxilary power cables on the AT PSU.
From the left of the cable (Blue wire) to the right (Red wire) they matched up as:
Blue  = +12v
Black = -12v
Black = Common
Red   =  5v

Don't forget to use a metre first though.

[blobrana]

Hum,
yeah...
Explicit pictures here...

[XDelusion]

---edit--- posted in wrong place

[delshay]

@tanletown

@ the AT PSU end you have black= -12 & black = common are you sure?


i done my own conversion useing a pc powersupply,dont remember black being -12v...

[Karlos]

delshay wrote:
@tanletown

@ the AT PSU end you have black= -12 & black = common are you sure?


i done my own conversion useing a pc powersupply,dont remember black being -12v...

-12VDC is blue on every AT / ATX PSU I ever looked at (and I've looked at a few).

[Alma96]

Hello,

For my A1200 with an Apollo 1230/40Mhz accelerator (with a 2.5''HD, an Ethernet card on PCMCIA and a Twister1200 serial card on the clock port), I use a standard A500 PSU and it works fine. If I had to upgrade to a 68040 or 68060, I would go for a PC PSU because the A500 would not do the job.

[blobrana]

yellow = +12v
blue = -12v
Black = Common/gnd
Red = 5v