tower power supply

CHiEF · 31 October 2001, 16:25

is it possible to rip the entire power supply out from an AT case and use it like that, or is there a danger of electric shock due to lack of casing? just thought i'd ask because i'm fed up with having to lug the whole tower case around just to power the amiga

Amiga1992 · 31 October 2001, 16:50

Where did you get the schems to modify the PSU? Teh docs I read from the Aminet were utter pish.

CHiEF · 31 October 2001, 17:12

aye, the aminet ones were all contradictory and didn't really come as much use. i spent ages searchin the net and eventually found some useful diagrams on some guys site, can't remember the exact name right now, but i'll check it out when i get home and post it tomorrow. you have to be careful though, because the schems from the net may not be exactly the same as your amiga hardware PSU, so it is important to buy or get hold of a "multimeter" to measure the voltages to make sure that it is 100% correct before you plug it up. if you get it wrong, you will know about it

so be safe!!! maybe a good idea to wear rubber gloves too

hehe

CHiEF · 31 October 2001, 17:13

i seem to remember the site was something like "Ogg's A1200 Tower" page or something???

Amiga1992 · 31 October 2001, 17:34

Ok, let me know, because I'm interested

Cheers

CHiEF · 31 October 2001, 17:52

heh, okay i just had a quick look for it and i can't find a link on the net, so i will make my own guide with some diagrams and upload it to the zone to try and help you out

Amiga1992 · 31 October 2001, 17:54

As long as I don't blowup my meega...

Shadowfire · 01 November 2001, 01:52

It's relatively easy to hack an ATX power supply to be used with an Amiga as long as you're good with wires. Aminet has hacks for supplying a /TICK signal, but I don't understand why, since the machines which require a /TICK signal have jumpers on the motherboard to take the /TICK from /VBLANK instead. Basically, the only thing remotely tricky is that you have to run an ATX/GND and the ATX/POWER lines to your power switch.

CHiEF · 01 November 2001, 11:10

heh, so gettin back to the original question: could i use this PSU outside of the case *SAFELY*

... i don't really want to electrocute myself just to play cannon fodder haha

Amiga1992 · 01 November 2001, 15:38

Try it out, you might be able to pull off a Rayden impersonation to look cool at Halloween

Shadowfire · 03 November 2001, 01:31

Well, if its like any other ATX power supply, the metal casing should be grounded, and relatively safe to expose (NOT safe to stick metal things through, though, there is 110 volts inside there). Just to make sure, use an ohmeter to measure between the ground prong & the metal casing - you should get <5 ohms of resistance.

The real safety issues are going to be the AC power line going from the socket to your power supply, and also possibly having exposed wires. Neither of which should be a problem if the power supply & computer are secured well.

31 October 2001, 16:25	#1
CHiEF Captain Join Date: Oct 2001 Location: Sheffield / England Age: 43 Posts: 205	tower power supply is it possible to rip the entire power supply out from an AT case and use it like that, or is there a danger of electric shock due to lack of casing? just thought i'd ask because i'm fed up with having to lug the whole tower case around just to power the amiga

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31 October 2001, 16:50	#2
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Where did you get the schems to modify the PSU? Teh docs I read from the Aminet were utter pish.

31 October 2001, 17:12	#3
CHiEF Captain Join Date: Oct 2001 Location: Sheffield / England Age: 43 Posts: 205	aye, the aminet ones were all contradictory and didn't really come as much use. i spent ages searchin the net and eventually found some useful diagrams on some guys site, can't remember the exact name right now, but i'll check it out when i get home and post it tomorrow. you have to be careful though, because the schems from the net may not be exactly the same as your amiga hardware PSU, so it is important to buy or get hold of a "multimeter" to measure the voltages to make sure that it is 100% correct before you plug it up. if you get it wrong, you will know about it so be safe!!! maybe a good idea to wear rubber gloves too hehe

31 October 2001, 17:13	#4
CHiEF Captain Join Date: Oct 2001 Location: Sheffield / England Age: 43 Posts: 205	i seem to remember the site was something like "Ogg's A1200 Tower" page or something???

31 October 2001, 17:34	#5
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Ok, let me know, because I'm interested Cheers

31 October 2001, 17:52	#6
CHiEF Captain Join Date: Oct 2001 Location: Sheffield / England Age: 43 Posts: 205	heh, okay i just had a quick look for it and i can't find a link on the net, so i will make my own guide with some diagrams and upload it to the zone to try and help you out

31 October 2001, 17:54	#7
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	As long as I don't blowup my meega...

01 November 2001, 01:52	#8
Shadowfire Registered User Join Date: Aug 2001 Location: Connecticut USA Posts: 617	It's relatively easy to hack an ATX power supply to be used with an Amiga as long as you're good with wires. Aminet has hacks for supplying a /TICK signal, but I don't understand why, since the machines which require a /TICK signal have jumpers on the motherboard to take the /TICK from /VBLANK instead. Basically, the only thing remotely tricky is that you have to run an ATX/GND and the ATX/POWER lines to your power switch.

01 November 2001, 11:10	#9
CHiEF Captain Join Date: Oct 2001 Location: Sheffield / England Age: 43 Posts: 205	heh, so gettin back to the original question: could i use this PSU outside of the case SAFELY ... i don't really want to electrocute myself just to play cannon fodder haha

01 November 2001, 15:38	#10
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Try it out, you might be able to pull off a Rayden impersonation to look cool at Halloween

03 November 2001, 01:31	#11
Shadowfire Registered User Join Date: Aug 2001 Location: Connecticut USA Posts: 617	Well, if its like any other ATX power supply, the metal casing should be grounded, and relatively safe to expose (NOT safe to stick metal things through, though, there is 110 volts inside there). Just to make sure, use an ohmeter to measure between the ground prong & the metal casing - you should get <5 ohms of resistance. The real safety issues are going to be the AC power line going from the socket to your power supply, and also possibly having exposed wires. Neither of which should be a problem if the power supply & computer are secured well.

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