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AuthorTopic: 3,5 ide drive powered via floppy connector on mobo(a1200)  (Read 677 times)

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Offline _ThEcRoW

3,5 ide drive powered via floppy connector on mobo(a1200)
« on: April 08, 2006, 01:51:50 PM »
Well, i just have a doubt about this simple thing, it is possible to feed juice into an ide 3,5 drive trough the floppy
power connector?. I have a project that involves a a1200 desktop without expansions, only an hd, and i think that only a hd drive would be feasible for the standard commodore psu(a500 brick).
Anyone got ideas?
Thanks in advance!!!!
Amiga 1200 desktop. Apollo 030/50 Mhz 8mb ram + ClassicWB + Wb 3.1
Amiga 500 + ACA500Plus + 16gb CF | ECS Power!!!
C64 DTV + Keyboard mod. Waiting for a 1541 disk ve...
Mac Mini G4 1.42Ghz 1gb OSX(tiger)/Morphos 3.7 Registered
C64mini + usb drive with loads of games...
 

Offline _yak_

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #1 on: April 08, 2006, 02:08:52 PM »
Yes, there were some kind of Amiga 1200 HD kits that included cables to draw the power from floppy power connector (they allowed to connect the power to the floppy at the same time of course). If you don't plan to have some BPPC there then a standard A1200 PSU (which is weaker than A500 PSU btw.) should be enough.
 

Offline amigagr

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #2 on: April 08, 2006, 02:24:43 PM »
it's ok to do it, i use this connections for some years until i connect and a cdrom so now i power both hd and cd with an external cable from a 150w psu.
A3040/25 AmigaOS 3.9
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MacMini/G4 1.5 MorphOS 2.7/OSX 10.5.8
Long Live Amiga

If i am going to have bugs on my system,
at least let me keep the latest versions.
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Offline Effy

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #3 on: April 08, 2006, 03:23:07 PM »
Ehm, my first A1200 desktop had an A500 heavy power supply and I used an 3,5" 1,6 Gb hd inside and on the outside was my CDrom, both powered by the internal connector ... never had any problem though  :lol:

Offline _ThEcRoW

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #4 on: April 08, 2006, 04:32:34 PM »
So how is the wiring needed? I mean, from the floppy power connector to a standard pc power connector for ide drives.
I know that i will need to butcher out a cable for getting one, only need to know the position of the cables without frying anything!!.
Thanks in advance!!
Amiga 1200 desktop. Apollo 030/50 Mhz 8mb ram + ClassicWB + Wb 3.1
Amiga 500 + ACA500Plus + 16gb CF | ECS Power!!!
C64 DTV + Keyboard mod. Waiting for a 1541 disk ve...
Mac Mini G4 1.42Ghz 1gb OSX(tiger)/Morphos 3.7 Registered
C64mini + usb drive with loads of games...
 

Offline lurkist

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #5 on: April 08, 2006, 07:50:34 PM »
Yes, wiring instructions would be great, please!

I tried installing a IDE-CF adapter in this manner, fried the 256MB CF card doing it (the adaptor seems fine though).
Must have got things twisted back to front.  :(
A1200 Power Tower, Blizzard 1260 66 +32MB, OS3.9, 2.5\\" HD, IDEfix97 + DVD-RW + Zip, SD/FF + 15\\" CRT, Ioblix1200P + scanner, PCMCIA LAN + router
 

Offline _yak_

Re: 3,5 ide drive powered via floppy connector on mobo(a1200)
« Reply #6 on: April 08, 2006, 08:18:08 PM »
@_ThEcRoW

Small molex (floppy) power connector (CABLE SIDE):
http://pinouts.ru/data/SmallPower_pinout.shtml

Big molex (hdd) power connector (CABLE SIDE):
http://pinouts.ru/data/BigPower_pinout.shtml

If you have a multimeter, be sure to double-check everything before power up.
Good luck!