Mac OS X: G4 Dual 800 Quicksilver Turns off then attempts restart
G4 Dual 800 Quicksilver Turns off then attempts restart
by hagbard celine--2008 - 10/10/08 2:25 PMI have a Dual 800 mhz G4 Quicksilver Power Mac. 1 gig of Ram installed. 1 extra hard drive. OS X 10.3.9. USB 2.0 and dual monitor card installed.
Sometimes (not all the time) when I am watching video the computer turns off then attempts a restart. Sometimes it takes 5 or 6 attempts to get it going again. Sometimes it is just the fans, hard drives, and red light on the motherboard that turn on. Other times it makes it through the startup tone and the monitor lights up then turns off again and keeps attempting until it gets going.
I also notice this happening when I am rechecking large torrent files.
Other times it just happens and I haven't figured out a pattern.
I can normally use web browsers, convert FLAC files, burn cds without issue.
I did a hardware test and all was good.
I have already ordered a new Proc Fan. Going to get a new battery tonight. Wondering if it is Power Supply problem...?
Thanks
Power Supply
by mrmacfixit
- 10/11/08 4:31 AM
In reply to: G4 Dual 800 Quicksilver Turns off then attempts restart by hagbard celine--2008
I would be inclined to suspect the power supply for this problem.
I believe there is a PDF on the Apple site, under support, that details how to check it.
I can't put my finger on the url right now but it is worth a search.
Quicksilvers were/are notorious for failing power supplies.
P
a few more symptoms
by hagbard celine--2008 - 10/11/08 8:18 PM In reply to: Power Supply by mrmacfixit
Sometimes the only way i can get the computer to startup is by holding the startup button. When I do this the computer gives a long beep. After doing some searching i saw this may be because of the firmware. So I did the option apple o f to reset the firmware. But it still gives the long beep.
I have also noticed the caps lock light turns on as i restart...?
Normally I wouldn't be trying so hard to get a messed up computer to work but...it is the only OS 9 machine i have (and I have lots of audio that will only work under os 9), my laptop died earlier in the week so i have been living off of my iPhone, which actually works rather well for email and web surfing. Just wish I had access to audio and photography...
Power Supply
by arthur2print - 10/18/08 9:14 AM In reply to: Power Supply by mrmacfixit
I agreed with mrmacfixit.
I experienced problem with my G4 Dual 800 Quicksilver. It turns off by itself for no apparent reason even when I was working on simple words file.
In the beginning it turned off by itself in between days, then it became more frequent and in between hours or even minutes and I find it quite annoying at the frequent restart.
After replacing the power supply unit, the problem no longer exist.
Quicksilver turns off and restarts..
by NeilFiertel - 10/18/08 12:37 AM In reply to: G4 Dual 800 Quicksilver Turns off then attempts restart by hagbard celine--2008This has nothing to do with fans or with power supplies..The computer is crashing due to incompatible software with this old OS. I would suggest getting Tiger for this machine and adding another 512MB of RAM. When it tries to restart it has not had a chance to clear the RAM which is temporarily corrupted. Shut the machine down for thirty seconds and restart. Go to the console and look at the crash log and see what it says..likely a kernel panic. I wonder as well what kind of graphics card you are using on that machine. I suggest that this is where the problem lies..They take a lot of juice and it is possible that you are overtaking the power supply on this elderly machine and it is shutting down to protect itself. See if you can locate a software program that can read the cpu temperature. It will tell you what you want to know but I am assuming if the hardware check shows no problem that it is a kernel panic due to unsupported hardware of an application crash. I used a dual 800 quicksilver until last month..It never gave me cause for conern in terms of the power supply. It is exceeedingly dependable in fact and whoever said it is prone to power supply issues is I believe respectfully is mistaken. In any case, check out the compatibility of the graphics drivers for that card and go find if you can Tiger. It cannot accept Leopard unless it is 875 mhz and faster for the cpu. There is a cludge for it however on Versiontracker but I recommend total compatibility with Tiger 10.4.X. That is what I used succcessfully. Great old machine. I used by the way an ATI graphics card to run a 30 inch screen on that machine succcessfully and it never crashed at all.. By the way, USB 2.0 cards made by some suppliers are not fully compatible on this machine. Pull it out and see if the problems disappear..I would suggest a Sonnet card for it. Many possibilities but it is definitely NOT a faulty power supply..
I think you missed something in the original post
by mrmacfixit - 10/18/08 6:43 AM
In reply to: Quicksilver turns off and restarts.. by NeilFiertel
This machine is not running OS X, it is running System 9. This is the OS that came with the machine which would indicate that the machine is quite capable of running System 9, regardless of how old the computer or the Operating System is.
The OP does not want to go to OS X as they have a lot of Audio stuff that only works while running under System 9.
Glad to hear that you never had a problem with your dual 800 QuickSilver, many people were not as fortunate as you.
I would suggest that your experience with one Quicksilver, which apparently never gave you any power supply problems, is not enough to base your opinion of them all being "exceedingly dependable" on, as a search of the Apple discussion boards and web support forums will show.
P
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