Amiga 1200 with blizzard 1230 4A/50W sufficient?

Lisko · 06 April 2021, 13:59

Hi on an Amiga 1200 with a blizzard 1230 68030 cpu and 68882 fpu both at 50 mhz and an IDE CF card are 4Amps/50W (mean well rpt-60b) enough for stable operations? Even with a pcmcia ethernet card?

Daedalus · 06 April 2021, 14:43

Yep, that's plenty - it's unlikely that setup uses much more than half that 5V capacity, and probably doesn't exceed 15W.

duga · 07 April 2021, 11:19

A600/1200 PSU 3 A is probably enough as you're not using mechanical HDD or CDROM.

Daedalus · 07 April 2021, 13:47

A standard 3A PSU is enough even if you are using a mechanical HDD and CD-ROM. The problem with the older PSUs is not the rated capacity, it's that some of them deteriorate and are no longer able to reliably provide their rating. If they're working correctly, any standard Amiga PSU can power an A1200 with an 030, hard drive and CD-ROM drive with capacity to spare.

Kin Hell · 07 April 2021, 20:06

I understood 5A was a better solution for Less Strain overall.

Daedalus · 07 April 2021, 21:18

Once a PSU is able to supply the maximum required current without causing problems, that's all you need. Having extra in reserve is no harm of course, and you don't want to be sitting right at the limit for things like this, but an A1200 with an 030 and mechanical hard drive is probably only going to use around 2.5A.

Nightshft · 08 April 2021, 17:42

Second that. I use my A1200 with an Aca1233 (030+Fpu) with a 2,5A Power Supply. It works stable. First I forgot to check but when I looked I was surprised that it works with that small PSU. I once checked with a watt meter (not sure how accurate, but better than nothing) and with the card active system consumption only increased by 2 watts.

PS: Plugging in the furia into my A600 lets consumption rise by 6 watts which explains why that thing gets so hot.

Kin Hell · 10 April 2021, 12:10

The power drawn for Hard Drive spin up is alarming.

I know a Desktop 1200 isn't going to have 6 x SCSI hard drives banging away but 4A is not adequate if you're using a Big Box Amiga with lots of hard drives.

Sure, we can get CF & mSATA devices these days but if you want to be Traditional/Real Retro with your Big Box Amiga, all I will say it becomes a bit of a "Jeremy Clarkson" affair....

"More Power"

06 April 2021, 13:59	#1
Lisko Registered User Join Date: Mar 2021 Location: Avellino, Italy Posts: 170	Amiga 1200 with blizzard 1230 4A/50W sufficient? Hi on an Amiga 1200 with a blizzard 1230 68030 cpu and 68882 fpu both at 50 mhz and an IDE CF card are 4Amps/50W (mean well rpt-60b) enough for stable operations? Even with a pcmcia ethernet card?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OS 3.9 BB2 Amiga 1200 Blizzard IV 1230 32MB	diskers	support.Apps	0	18 September 2012 08:26
For Sale Amiga 1200 Accelerator Board Blizzard 1230 Iv Turbo	GurjSagoo	MarketPlace	3	02 August 2011 14:49
FS: Blizzard 1230-IV accelerator for Amiga 1200	Gavilan	MarketPlace	1	28 February 2009 17:26
Blizzard 1230/4 for Amiga 1200, turboboard with 64mb+co	Effy	MarketPlace	20	27 May 2005 18:07
FS: Blizzard 1230/50 with scsi addon for Amiga 1200	Gavilan	MarketPlace	3	25 February 2005 14:58

06 April 2021, 14:43	#2
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Yep, that's plenty - it's unlikely that setup uses much more than half that 5V capacity, and probably doesn't exceed 15W.

07 April 2021, 11:19	#3
duga Registered User Join Date: Nov 2010 Location: Sweden Posts: 528	A600/1200 PSU 3 A is probably enough as you're not using mechanical HDD or CDROM.

07 April 2021, 13:47	#4
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	A standard 3A PSU is enough even if you are using a mechanical HDD and CD-ROM. The problem with the older PSUs is not the rated capacity, it's that some of them deteriorate and are no longer able to reliably provide their rating. If they're working correctly, any standard Amiga PSU can power an A1200 with an 030, hard drive and CD-ROM drive with capacity to spare.

07 April 2021, 20:06	#5
Kin Hell 0ld0r Git Join Date: Mar 2009 Location: Cornwall, UK Posts: 1,570	I understood 5A was a better solution for Less Strain overall.

07 April 2021, 21:18	#6
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Once a PSU is able to supply the maximum required current without causing problems, that's all you need. Having extra in reserve is no harm of course, and you don't want to be sitting right at the limit for things like this, but an A1200 with an 030 and mechanical hard drive is probably only going to use around 2.5A.

08 April 2021, 17:42	#7
Nightshft Registered User Join Date: Mar 2018 Location: Austria Posts: 615	Second that. I use my A1200 with an Aca1233 (030+Fpu) with a 2,5A Power Supply. It works stable. First I forgot to check but when I looked I was surprised that it works with that small PSU. I once checked with a watt meter (not sure how accurate, but better than nothing) and with the card active system consumption only increased by 2 watts. PS: Plugging in the furia into my A600 lets consumption rise by 6 watts which explains why that thing gets so hot.

10 April 2021, 12:10	#8
Kin Hell 0ld0r Git Join Date: Mar 2009 Location: Cornwall, UK Posts: 1,570	The power drawn for Hard Drive spin up is alarming. I know a Desktop 1200 isn't going to have 6 x SCSI hard drives banging away but 4A is not adequate if you're using a Big Box Amiga with lots of hard drives. Sure, we can get CF & mSATA devices these days but if you want to be Traditional/Real Retro with your Big Box Amiga, all I will say it becomes a bit of a "Jeremy Clarkson" affair.... "More Power"

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)