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LC 475 with LC power supply

Author	Topic
onionkid Starting Member Sweden 35 Posts	Posted - 15 May 2003 : 11:47:45 Hi, Can I run a 475 from a power supply from an LC? It´s slightly weaker, but perhaps the 475-powersupply has more amps than needed? //onionkid /////////////////// I lack a cool saying
onionkid Starting Member Sweden 35 Posts	Posted - 15 May 2003 : 11:59:17 correction, power supply is not from LC, but from LC II /////////////////// I lack a cool saying
G4from128k Full Member USA 873 Posts	Posted - 15 May 2003 : 13:13:40 Should be no problem. According to http://applehistory.acmug.com/support_files/by_processor.html the PSU on the 475 was actually weaker (30 W) than that of the LC and LC II (50 W). Are they in error? Does anyone know if the 475 really uses a more powerful PSU? G4From128k by Day: Mild-Mannered Engineer and Trapeze(tm) Artist by Night: Colonel of Truth, Justice, and the Macintosh Way Reserve Officer in 68kMLA Cantankerous Coot Contingent
Trash80toG-4 NIGHT STALKER USA 2899 Posts	Posted - 15 May 2003 : 14:35:11 quote: Should be no problem. According to http://applehistory.acmug.com/support_files/by_processor.html the PSU on the 475 was actually weaker (30 W) than that of the LC and LC II (50 W). Are they in error? Does anyone know if the 475 really uses a more powerful PSU? Leave it to Apple to spend the money to redesign a custom PSU to output less power just to make sure a machine isn't really upgradeable. Bank on it. jt ™. Trash Hauler: call sign: eight-ball C.O. AC-130H SpecOps 68kMLAAF
maclover5 LC Doctor/Hot Rodder Australia 5830 Posts	Posted - 15 May 2003 : 15:59:45 It'll work fine. Trust me. The amps are exactly the same. It's just the watts that are different, and it probably won't draw that many watts unless you have a big HD, so feel free to plug it in. -------------------------- Give your dreams a chance.™ - Apple in the mid '90s Warrior maclover5 68k Macintosh Liberation Army Number of 68ks Liberated: 7 Number of Contraband (PPC) Liberated from the Dumpster: 1
onionkid Starting Member Sweden 35 Posts	Posted - 15 May 2003 : 22:22:47 cool, thanks :) (otherwise I´d have to do even more welding [:]] /////////////////// I lack a cool saying
cory5412 68KMLA Comrade-in-Arms USA 4679 Posts	Posted - 16 May 2003 : 23:05:01 yeah.... it'll work... usually a PSU draws the watts lower than it's rated for.... Official 68k videographer Official MLA TourGuide "I'm just a normal computer geek who somehow landed a social life"
onionkid Starting Member Sweden 35 Posts	Posted - 18 May 2003 : 03:24:17 well, in fact, both the amps and watts are higher. The effect can never be higher if the power is not as well, as the volts are always the same. But anyway, it worked. Now onto my next task; the 3HD+CD scsi-box /////////////////// I lack a cool saying
elakazal Starting Member USA 16 Posts	Posted - 20 May 2003 : 07:48:06 My "LC thing" (I'm not quite sure what model to call it anymore) is a 475 motherboard with the case and power supply of an LC II, and it works fine. It's even running two drives instead of one and overclocked, and I haven't had any problems.
Trash80toG-4 NIGHT STALKER USA 2899 Posts	Posted - 20 May 2003 : 09:31:34 quote: well, in fact, both the amps and watts are higher. The effect can never be higher if the power is not as well, as the volts are always the same. Ayup, they're multiples, so if the output voltage is held constant (as it must be to be compatible) the increased wattage would indicate the increase in output capability of the older PSU (measured in amperage) over the later revisions. The 475/605 needed less power due to increased efficiency of its components like the FDD and HDD, higher density memory and more tightly integrated electronics in its more advanced ASICs. Apple needed to reduce the output of the PSU so developers couldn't utilize the excess power by building a more capable upgrade card/accelerator for the microquadras . . . they might take sales away from the high end systems. :rolleyes: jt . Trash Hauler: call sign: eight-ball C.O. AC-130H SpecOps 68kMLAAF Edited by - Trash80toG-4 on 20 May 2003 09:32:45
cory5412 68KMLA Comrade-in-Arms USA 4679 Posts	Posted - 20 May 2003 : 21:45:04 ohwell... we love our feetsmacs and microQlusters and brickoven macs If I had a choice between a 605 that was basically the guts of an 840av... and an 840av.... I'd take the 605 Quadra 605av ? Official 68k videographer Official MLA TourGuide "I'm just a normal computer geek who somehow landed a social life"

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