OS X :: Motherboard Is Shutting Off At Random Times
Apr 11, 2009
I have an old HP Pavilion 700 that I am having trouble with. A few months ago, I replaced its power supply because the fan inside of it would start up for about a second and then shut off. The problem I am having now is the fan (shown in pic) connected to the motherboard is shutting off at random times and causes the external display to go blank. But the fan inside the power supply will always stay on though. Sometimes, I can get the computer completely booted up for about 10 minutes and use it just like normal before this happens. Other times, I can only get as far as the startup screen before the fan and screen shut off.
So the problem that I'm having is that at random times I lose connection. At the same time the PC-s that are connected to the same network have connection, plus the ISP said that everything seems to be fine on their side. So there seems to be an issue with the WiFi on the MB. It just loses the connection and can't find it for about a minute and some times it takes about 5 minutes for it to reconnect to the network. And the problem isn't limited to only one network, but actually happens in different networks. It started as a minor inconvenience, but now it's starting to really bug me. And it seems that I'm not even making it up: [URL]
I am a new mac user and a sound similar to the "Frog" sound effect keeps playing at random times and with no apparent reason. It just plays and at different times...Sometimes it's every 20 seconds, sometimes more or less. I disabled the sound in System Preferences and it kept playing. I don't know what else to do since i'm new with mac I also reseted the PRAM and it stopped for a while but now it started again. I've noticed that most of the times it sounds when i'm charging the battery, i don't know if it has something to do.
The last 2 days my iMac has completely frozen on me at random times. Frozen meaning, no mouse movement, no keyboard activity (caps lock not responding) and no OSX activity whatsoever. Temp at the time 41C, CPU Usage at 21% or smth, Fan speed at around 1200rpm. However, I don't get the infamous kernel panic error. I haven't changed anything hardware wise. I did have a couple of months ago the graphics glitch problem. Last software update was the iWork one. iMac is Aluminum 20' with C2D 2.4 and ATi 2600 Pro.
So essentially the title says it all. My Macbook has been making the "eject-a-cd" noise at random times since about yesterday. As of yet I have not attempted a restart.
my mbp has a very strange problem. when i was using my computer it will open a window of safari once in a while. and i am sure i didn't thouch anything.
I have experienced these kernel panics lately, at completely random times, I don't know what the problem is. All I really have so far, is the panic.log.
My specs are: Powermac G4 MDD 2003 1gb ram 80 gb hard drive 1.25GHz PPC G4
iMac 27 the screen goes black at random times. If left for a time and by pressing ctrl, Shift Eject, the screen comes back and can remain on for the rest of the day. However, the next day the same thing happens. Â
Energy saving set to - Hard disk never sleep, Screen sleep in 15 mins.
I'm aware of the Airport issue mentioned on these forums (and have tried the kext fix for that without any luck). I have KPs when watching 4+ minute long videos on Youtube (have no issue using iMovie for longer videos or watching videos from my own harddrive), sometimes when the screensaver is on or shortly after the computer goes unidle, and sometimes for no apparent reason. I've already had 2-3 KPs in the past 4 hours. This is my first Mac and not at all what I was expecting. Â
Sometimes the screen will flicker rapidly, other times I will get a black screen, pink screen, or the screen will "glitch" and move halfway to the left (right is now on the left and left on the right). I can sometimes delay the crash if I pause the video (the screen starts to twitch or have "lightning" flashes across parts of it) but it will eventually crash anyway. Â
I usually use Firefox but have had the same crash in Safari so it's not browser-related as far as I can tell.Â
I have a MacBook which has recently been shutting down when it feels like :/ this all started a week or two ago (well not the shut downs but other issues that I'll get too), basically the fan I think has been knocked as it is bumping the top or something as the whirring is getting loud and it sounds like every now and again it hits something
Also CPU usage seems to be averaging out at 20% for Safari and 100% for HD Video where as it used to be very small amount for Safari and 30 - 40% for HD.
I am considering buying a new Mac Pro. Can anyone tell me that if I buy one with single CPU, can I upgrade it later by adding another CPU? In other words, do I get a dual CPU motherboard or not?
If need to replace a motherboard with Intel processor, will the Mac OS X be compatible for it or do I need a properitary [sic] motherboard with intel chip?
Strange problem since I got my MB back from the apple store (got a new hd). Now, every so often, the cursor will jump to a different part of the screen, often when I'm typing. You can imagine how frustrating that can be!
Was the case put back together wrong? Hiccup with the motherboard?
First gen white Macbook 1.83 with 2 GB, running 10.4.11
I was recently given a non working G5 dual 2.5ghz machine. It is a quad core machine with the Delphi liquid cooling system. After some investigating I found it had a coolant leak. All the fans and lights come on as well as the bootup �chime�. I think (hoping) that the motherboard and power supply are still good. My question is this:
Can I use different processors on this motherboard? Lets say a dual 2.5ghz non-quad core processor assembly. Am I making sense? I am very new to the Mac world and would appreciate any help on this issue.
I've been experiencing a variety of problems with my peripheral devices. At first it started with my monitor and I thought it was going out... it was having lines (darker lines, like flickering) all over the screen... but then I realized this happened when I plugged something into my computer... so for example if my external monitor is on, and I plug in my firewire soundcard it starts to flickr...
Then it started to do it when I would plug in my printer... now if I plug in my firewire soundcard my monitor turns on and off... and I'm having sync issues with my soundcard.
I wiped my computer, reset the SMC and the PRAM and NVRAM. How do I test if my mother board is crapping out?
What is the best was to diagnose possible motherboard faults on a Mac? I'm having various problems which appear to be hardware related (i.e. re-formatting, re-loading OSX, etc don't seem to fix them and the problems appear at different times running different processes) so want to check the motherboard out.Typical problems are a USB hard drive suddening going off-line, the DVD burner suddenly resetting itself for no reason, screen not redrawing properly etc. and all these only happen occasionally. The only test I can find is a RAM test (various programs allow this including Tech Tool Pro 6) but is there a way to test other components?
I have Powermac G4 AGP (M7628LL/A) that has the AGP slot without the 'power-supplying' tab at the front of the slot. Therefore my NVIDIA GeForce2 MX video card (ADC/VGA) will only enable me to use the VGA outlet, and not the ADC. I have two Studio Display Monitors (M7649) and cannot use them.
I need to know (1) What other monitors will work with this G4 (in case I cannot fulfill #2), and most importantly (2) Which motherboard can I replace this one with that will enable me to use the video card in it's fullest?
Im fixing up a macbook, and there was problems with the battery connector. So I pulled it out. But on the LB there were only 9 holes (6 on one side, 3 on the other) and no hole where the 7th ones should be. And on the connector in those spots it was the same thing, but what is even weirder, is that it doesnt even look like the pins were broken off, just that there was nothing there, and on the top it doesnt have any solder on those points. Any ideas what to do and how to do it??? And if you want i can post pictures.
I bought 4 G4 towers of eBay for �85.. none have Hdd's so havent tried them out yet (two also have no graphic cards) I got a mix of ram size and speed (pc100/pc133) however thats not my question
Next to the ram slots theres a red light that comes on, is this normal? I've tried to do some research on it and some people say it is, others say it isnt.
I plan to sell them off again on ebay but I did it mainly as a project to keep the G4's alive. Any suggestions on graphic cards (cheap ones too)?
I'm looking into replacing a motherboard on my newphews iBook G4. It's an early 2004 Series. I'm wondering if these Ibooks have interchangable motherboards, i.e. 1.0ghz vs 1.2ghz, 12inch screen vs the 14inch screen. I've done much work on IBM compatible laptops and these interchange pretty easily...but these MAC's are all new to me. I'm looking to get a busted up one off ebay and replace it for him for pretty cheap...
