Re: Query re: power supply in "Mystic" Dual G4s
On Jul 20, 2009, at 12:32 PM, dc wrote: >> I thought, though, that the REGULAR Gig-Ethernet G4s and the Mystic >> G4s took different power supplies. Am I wrong? > > I think they use the same PSU. Many Digital Audios were also dual > processor, the same PSU should work in your Mystic. (I've put a dual > 500 Mystic processor into a Sawtooth with no problems, the power > requirements in these early G4s are very similar except for the +28V > adc line) PSUs with the same mobo connections are interchangeable. Dual processor models use the same PSU as the single processor models. Some models must have a higher level mobo to accept a dual processor as the grand central chip doesn't support duals. --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Re: Query re: power supply in "Mystic" Dual G4s
On Jul 20, 1:56 pm, mythmaker18 wrote: > I thought, though, that the REGULAR Gig-Ethernet G4s and the Mystic > G4s took different power supplies. Am I wrong? I think they use the same PSU. Many Digital Audios were also dual processor, the same PSU should work in your Mystic. (I've put a dual 500 Mystic processor into a Sawtooth with no problems, the power requirements in these early G4s are very similar except for the +28V adc line) --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Re: Query re: power supply in "Mystic" Dual G4s
On Jul 20, 1:42 pm, dc wrote:
> On Jul 20, 1:20 pm, mythmaker18 wrote:
>
> > So, can anybody confirm whether the Digital Audio/Quicksilver power
> > supplies are truly compatible with the Mystic DPs
>
> Yes, the Gig-e ("Mystic") and Digital Audio share the same wiring.
I thought, though, that the REGULAR Gig-Ethernet G4s and the Mystic
G4s took different power supplies. Am I wrong? I haven't had a single-
processor Gig-E on hand for awhile.
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Re: Query re: power supply in "Mystic" Dual G4s
Now I wish I still had that link to that website that listed the pin outs of all the G3/G4 power supplies. I used it to hack a B&W G3 supply to work with a newer G4... but no ADC. I think they're all slightly different and I would not risk it until I found out for sure... -sam > > No, the power supply was set to the proper voltage. > > So, can anybody confirm whether the Digital Audio/Quicksilver power > supplies are truly compatible with the Mystic DPs, or is that eBay > seller talking a bunch of hooey? > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Re: Query re: power supply in "Mystic" Dual G4s
On Jul 20, 1:20 pm, mythmaker18 wrote:
> So, can anybody confirm whether the Digital Audio/Quicksilver power
> supplies are truly compatible with the Mystic DPs
Yes, the Gig-e ("Mystic") and Digital Audio share the same wiring. See
this page for reference:
http://www.outofspec.com/frankenmac/wire.shtml
Both of these Macs use a 338 V, 22-pin PSU. In this case it sounds
like the eBay seller is correct.
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Re: Query re: power supply in "Mystic" Dual G4s
No, the power supply was set to the proper voltage. So, can anybody confirm whether the Digital Audio/Quicksilver power supplies are truly compatible with the Mystic DPs, or is that eBay seller talking a bunch of hooey? --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Re: Query re: power supply in "Mystic" Dual G4s
On Jul 20, 2009, at 7:25 AM, mythmaker18 wrote: > Just a little side-note: are the power supplies in the Mystics > generally more prone to fail? I've had three mystics and only one > (Dad's) had a working PS. Apple's PSUs are made to a fairly high price point, much higher than that of a typical PC ATX PSU, upon which this entire family of Apple's PSUs is largely based. Failures are rare, but do occur. These all contain Apple's proprietary power-on circuit, and nearly every one is externally different from the others, although most are internally the same. These were made by many manufacturers, usually in the Far East. Although all are ATX in size, these have M3.5-0.6 fasteners instead of the usual #6-32 UNC. There are 20-pin, 22-pin and 24-pin examples, and the later ones have a high current auxiliary voltage for powering the monitor over the DVI cable (Gigabit E-net, Digital Audio and Quicksilver). The Quicksilver has two motherboard power connectors instead of just one. The usual problem with these PSUs is someone inadvertently switched the supply to 230 volts (these supplies are NOT auto-switching, to reduce cost), and this will give all the symptoms of a dead PSU. The correct setting for North America is 115 volts. There are no repairable parts within these PSUs, although it is, in most cases, possible to replace a failed fan with a generic one. Just cut-off the original cable and its "wire to board" connector, solder onto the replacement fan's cable, maintaining about the same overall length as the original, insulate with heat-shrinkable tubing and reinstall. --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Re: Query re: power supply in "Mystic" Dual G4s
I've never had one fail. 3 months ago or so I gave away 6 of those G4s (kept some parts and yes a spare PS, but gotta hold onto that until the last old G4 is gone) > > It appears the power supply died in the G4/500DP I gave my Dad. > > I've been checking eBay and other places for a replacement and have > noticed at least one vendor selling a Quicksilver/Digital Audio power > supply, stating that such a power supply is compatible with the Mystic > DPs, just that the only difference is the lack of the monitor pass- > through plug. > > Is this true, or a load of horse manure? It would probably be quicker/ > easier/cheaper for me to just bung in a Quicksilver/Digital Audio > power supply than to try to find one that came from a Mystic DP. > > Just a little side-note: are the power supplies in the Mystics > generally more prone to fail? I've had three mystics and only one > (Dad's) had a working PS. > > Andy > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
Query re: power supply in "Mystic" Dual G4s
It appears the power supply died in the G4/500DP I gave my Dad. I've been checking eBay and other places for a replacement and have noticed at least one vendor selling a Quicksilver/Digital Audio power supply, stating that such a power supply is compatible with the Mystic DPs, just that the only difference is the lack of the monitor pass- through plug. Is this true, or a load of horse manure? It would probably be quicker/ easier/cheaper for me to just bung in a Quicksilver/Digital Audio power supply than to try to find one that came from a Mystic DP. Just a little side-note: are the power supplies in the Mystics generally more prone to fail? I've had three mystics and only one (Dad's) had a working PS. Andy --~--~-~--~~~---~--~~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~--~~~~--~~--~--~---
