Re: Power output problem?
If you do a search withatx G4 you'll get quite a few hits with pinouts and instructions. I do have a G4 with an ATX power supply. Mine was done with an adapter so that if the ATX power supply ever quits, it's just a matter of plugging another in -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
On 9/15/12 10:39 AM, Frank Dutra wrote: I've had a lot more connected to a G4 than a couple of drives and a 9800. My guess is that your power supply is getting marginal. After 12 years likely the capacitors in the power supply have started going. You could recap the power supply or do an atx conversion. Another option is to power some of the extra equipment from an external power supply, though if your power supply is on the way out then that'd be a short term solution OK, so I fired up this morning and was reading my mail when I had a total freeze up. Rebooted (had to pull the power cord) and was treated to a very nice graphic of the Radeon 9800 card with a flashing red power plug and no startup chime,,, guess you were spot on Wayne. Any advice on doing an ATX conversion ? Any heat problems? Thanks FYI anyone else following this thread. I was able to restart after disconnecting my 2 internal ATA drives (have them mirrored on the SATAs). I of course then had to try plugging in both SATA drives and voilla!,,, feels good to have my backups up to date again and will pick up a power supply to have on hand for that fateful morning when the inevitable happens. Thanks everyone. If you can find a surplus dealer w/ working power supply or an old AT case with you could set the PS on desk w/ extension wires to power drives and/or extra fans. Just remember to switch on AT ps before computer. Pet peeve: power switches on back of device next to power cords that fall out too easily when trying to use switch. -- The Website your boss doesn't want you to know about!http://www.sfi4.com/8770421/FREE -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
I've had a lot more connected to a G4 than a couple of drives and a 9800. My guess is that your power supply is getting marginal. After 12 years likely the capacitors in the power supply have started going. You could recap the power supply or do an atx conversion. Another option is to power some of the extra equipment from an external power supply, though if your power supply is on the way out then that'd be a short term solution OK, so I fired up this morning and was reading my mail when I had a total freeze up. Rebooted (had to pull the power cord) and was treated to a very nice graphic of the Radeon 9800 card with a flashing red power plug and no startup chime,,, guess you were spot on Wayne. Any advice on doing an ATX conversion ? Any heat problems? Thanks FYI anyone else following this thread. I was able to restart after disconnecting my 2 internal ATA drives (have them mirrored on the SATAs). I of course then had to try plugging in both SATA drives and voilla!,,, feels good to have my backups up to date again and will pick up a power supply to have on hand for that fateful morning when the inevitable happens. Thanks everyone. -- Frank Dutra PO Box 3402 Nantucket MA 02584 mailto: fdut...@gmail.com Voice: (508) 292-1528 FAX: (815) 377-2407 -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
I agree with Mr. Prahlad, You're asking too much of your Mystic's 338W PSU. Also, Radeon 9800 Pro has a higher TDP than the GeForce4 Ti 4600 which was, if I remember it correctly, the higher-end video card intended for this line of Power Macs. I would desist from upgrading the video card with that 9800 Pro, which nowadays shouldn't make so much of a difference, and go for another card with lower power consumption. El 14/09/2012, a las 00:47, Valter Prahlad escribió: Il giorno 14-09-2012 0:30, Frank Dutra ha scritto: I may have finally hit the wall so to speak, in my attempts at keeping my trusty old G4 (dual 450 mystic) alive. A recent attempt to upgrade my video card to a flashed Radeon 9800 pro IMHO, it seems to me you're asking too much from your G4. Besides, I think a 9800 Pro would be overkill for that machine, the processor/memory/bus would be a bottleneck in comparison. Anyway, it could be the G4 power supply is not enough to sustain all those peripherals. The easiest fix that I see would be to disconnect the Pioneer optical drive and put it in an externally powered box but I have no idea if that will work? If the problem is too much power request from the PSU, I don't think the optical drive would change much. OTOH, the 2TB drive could make a difference. -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Power output problem?
Hi all, I may have finally hit the wall so to speak, in my attempts at keeping my trusty old G4 (dual 450 mystic) alive. A recent attempt to upgrade my video card to a flashed Radeon 9800 pro that required patching into the power supply via the connector cables that service the original cd/dvd drive (upgraded to Pioneer 106D). The original cable also provided an extension for plugging into an optional zip drive or other optical device, which I have dedicated to 2 internal 2tb drives via a seritek pci sata card (2 port internal only). The Radeon video card relies on yet another jumper cable to patch into the optical power circuit which physically works, but I lose both SATA drives (won't mount) when powering up. Oddly enough, if only one drive is connected I am able to boot from it regardless of which drive it is so I doubt there are any master/slave issues. WOuld like to resolve this issue so I can renew backing up the SATAs and try a Leopard upgrade on one. DOes anyone know if this is a voltage issue? The easiest fix that I see would be to disconnect the Pioneer optical drive and put it in an externally powered box but I have no idea if that will work? Thanks -- -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
Il giorno 14-09-2012 0:30, Frank Dutra ha scritto: I may have finally hit the wall so to speak, in my attempts at keeping my trusty old G4 (dual 450 mystic) alive. A recent attempt to upgrade my video card to a flashed Radeon 9800 pro IMHO, it seems to me you're asking too much from your G4. Besides, I think a 9800 Pro would be overkill for that machine, the processor/memory/bus would be a bottleneck in comparison. Anyway, it could be the G4 power supply is not enough to sustain all those peripherals. The easiest fix that I see would be to disconnect the Pioneer optical drive and put it in an externally powered box but I have no idea if that will work? If the problem is too much power request from the PSU, I don't think the optical drive would change much. OTOH, the 2TB drive could make a difference. -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
I've had a lot more connected to a G4 than a couple of drives and a 9800. My guess is that your power supply is getting marginal. After 12 years likely the capacitors in the power supply have started going. You could recap the power supply or do an atx conversion. Another option is to power some of the extra equipment from an external power supply, though if your power supply is on the way out then that'd be a short term solution -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Power output problem?
I've had a lot more connected to a G4 than a couple of drives and a 9800. My guess is that your power supply is getting marginal. After 12 years likely the capacitors in the power supply have started going. You could recap the power supply or do an atx conversion. Another option is to power some of the extra equipment from an external power supply, though if your power supply is on the way out then that'd be a short term solution Thanks Wayne, If I read you right, you think lowering the overall power demand might help rather than just lowering the demand on the optic drive 2 SATA drives, And 9800 circuit. I have the original OEM 30 gb drive plus a another 40 gb ATA drive that I really don't need except for some older OS's,,, I'm guessing the power demands on the 2 ATA must be at least the power drain of one of the 2tb SATAs? -- Frank Dutra PO Box 3402 Nantucket MA 02584 mailto: fdut...@gmail.com Voice: (508) 292-1528 FAX: (815) 377-2407 -- You received this message because you are a member of G-Group, 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 For more options, visit this group at http://groups.google.com/group/g3-5-list
