I have a 17" G4 1Ghz iMac, we used it until 10 months ago when I got my new 24" Intel 2GHz machine. That new 24" iMac is now in the basement craftroom as the digital hub for pictures/video/etc., while I brought the 17" G4 1Ghz iMac out from my closet for the upstairs loft general web surfing machine. It worked for 2 days and upon shut down would not re-start. I could only hear the fan and nothing else. If I held the power button for 10 seconds upon trying to start up there was a chime that sounded for a few seconds. Once the fan is making small sound, nothing else, if I hold power button for 5-20 seconds the computer will shut down (fan turn off).
Did some online checking, found article on PMU, so I did try and re-set PMU via the apple support article.Resetting the iMac (Flat Panel) Power Management Unit (PMU). Still, no re-start. It was running the latest 10.4.x update upon being put away for 10 months. Here is a picture of the bottom, the red light is on upon trying power on, my finger is on the PMU reset button. Is there any other diagnostic thing I can do? Is there a battery on this logic board that I can check/replace? I'm 100% ok at taking it apart and trying anything to fix it.
I received an old powerbook from a friend today and i plugged it all in and everything and the power adapter in the back and the ring lit up orange but when i went to turn it on nothing happened at all i didnt hear anything inside, it just didnt turn on. i really want to find the problem and/or fix it up.... I dont want to part with it as i need an extra laptop...
I went to turn on my Powerbook G4 (Aluminum 1.67GHz Low Res) today and when I plugged it in, I noticied a kind of crackling or popping noise. I unplugged the power adapter and tried again. I knew that my battery was dying before this (could only get about 30 min on a charge). But now I cannot start my Powerbook. Whenever I plug in my power adaptor, there is no green/orange light. However, when I take the battery out, I hear the Powerbook trying to start up (hard drive spin). But then there is nothing but my fans on full blast! They will not stop and there is nothing on the screen. I left it there for a good 5 min and nothing changed!
Ive got a G4 Power Mac 2x500MHz that Im getting a bit frustrated with.
Situation: - Power supply seems to work as power flows once I hit the power button. Fans spin, red light comes on the board, connected drives spin up, drawers open. - No chime. At first it was sporadic, but now non-existent. - No video output. Has the original AGP ATI 128 Rage Pro graphics card. - No power to USB ports? Try plugging in devices that light up in USB but nothing happens.
What Ive tried: - Ive replaced the board with a known good board and get the same results, and of course i thought this was the main problem. I did get a tiny whiff of burning smell from the previous board, though no signs of physical defect on it. No smell from the new board. - Replaced and swapped around about 6 different ram sticks. - Tried PCI graphics card (probably not compatible though) and no results, as expected. - Reset PMU of course. - Swapped processors.
I have my powerbook g4 charging all the time and the one time I unplug it to use somewhere else the battery loses its charge and shuts off the screen til i plug it in again...also the light around the plug that goes into the battery port on the laptop is flashing between green/yellow and orange.
I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.
I'm using a B&W Power Mac G3 with 512MB RAM and OS X Tiger for a SMB file server (with 5 users) and a USB printer server. Everything is working good, but I have a problem.
It doesn't have a monitor or keyboard/mouse attached normally (I can configure it via VNC). The problem is that I would like to be able to turn the machine off when it's not needed (like at night sometimes, days when I won't be home, etc.). I would like to just hit the power button and have it turn off, however it puts it to sleep instead.
Normally, sleep would be fine, except on the B&W, the fans still run, just the HDs shut off, so it's still noisy as heck.
Is there a way to make the power button shut it off? If not, any other easy methods of shutting it off you can think of? Via VNC won't cut it, as my dad needs to be able to turn it on (not a problem) or off as well.
My Macbook Was On And Working And I Tried To Hit The Power Button To Turn The Macbook Off And It Would Not Work....so I Shut It Down Using Computer Shut Down Under The Apple ....now It Will Not Turn Back On......it Has To Be The Power Button Itself....is There Any Where I Could Buy A Replacement Power Button? And Is There Any Other Way To Get It To Turn On Without Using The Power Button?
Ok. so my MBP was working 2 days ago and I went to Fry's to replace the HD with a 640GB model thinking larger storage - win. Replaced in and the orange ribbon cable got disconnected between the keyboard and the logic board. Went frantic and after a visit to the Apple Genius, they plugged it back and thought i was fine. Nope, and now the unit won't turn on. Plugged it in and got the green light and battery charges, but the MBP won't power on. I made sure the HD was plugged in securely, the orange ribbon connected fine, and the power button cable was secure. The drive worked fine as I did a superduper transfer of the old data to the new drive the night before the crisis and it worked fine.
After 1.5 years of use, my hard drive suddenly failed. This was later confirmed by Apple Genius Bar.†So I purchase a new SSD from OWC which was instructed to be compatible with my laptop model (MBP 13" early 2011).†It arrived today and I did the installation carefully and successfully.†However, after putting the back panel back in place I was unable to power up my laptop.
It was as if the power button is not working.†Then I opened up the back panel one more time to realise that every time I click the power button (turn on), the fan started running, this can only be stopped by pressing the power button and held it (turn off).†I tried placing my old hard drive and it doesn't work as well.†I tried reset the SMC by holding power-shift-option but same result.
I know I can get the bulk of it here: [URL:..] But is there a controller board? I can't find any documentation on this thing. I want to use it for a PC. Making an acrylic top is no problem. Just looking for pin-outs, dimensions, and maybe some pictures of someone else dissecting one.
I was just wondering if anyone knows how I can remove my eMacs power button, the one that you press to turn the computer on. I kinda wrecked mine and I want to "pop" it out to have a look at it. Looking at replacement costs they are like 50 bucks so I need to try what I can before I fork out for a new one.
This is a mystery to me. Long story but the gist of it is that I found if I hold down the power-button on my iBook while it's off it goes into some weird mode. i.e. fan spins, disc spins, sleep light flashes and a tone comes from the speakers.Is this some sort of hardware test mode? Is it going to blow up? Is it resetting something?
Got a tricky one here: powerbook G4, 1.25ghz, 1GB RAM (2x512), 80gb HD, APX, 15" LCD, serviceable battery, SuperDrive, OS: 10.4.11. It was brought to me with a boot problem: Computer turns on, gives the start up sound, backlight comes on, apple logo shows, spinner spins... then you get the dimmed screen, large option icon and "You must hold the power button and restart your computer": a kernel panic. I've seen this a few times before and the last time, I fixed it with a new hard drive and the removal of RAM from a bad ram slot.
What I did was: 1) Replaced existing 80GB HD with a backup 30GB drive. Then booted with a Tiger CD (the computer won't start with my disk warrior cd, nor with a tiger DVD). I was able to install Tiger and restart the computer. But the airport card doesn't show up. I tried a known good airport extreme card and this too has not shown up. 2) I hooked up the 80GB drive to my PC via MacDisk and checked it. Sure 'nuf it had loads of problems. MacDisk went through and fixed it (I'm not sure what the problems were as I'm new to MacDisk and don't know what it's looking for and fixing when it does). 3) With the computer running the 30GB known good HD, I started having the same kernel panics so I removed the first RAM chip (512MB) and tried to reset the PRAM.... here's where it went wonky. (I know, only change one thing at a time...) 4) As I said I tried to reset the PRAM (Option, Command, P, R, at start up). While I can get the computer to not boot, it won't restart. I don't know if this is just unique to this machine. Next I tried to reset the NVRAM and again got nothing. The screen wouldn't come on at all. After about three or four resets, the computer did start in Open Firmware mode. I reset the NVRAM from there and restarted (reset-nvram, reset-all). Still nothing on restart. 5) After trying to start it 15 times like this, I swapped the bottom RAM card to the top slot and removed the airport card (again, I'm stupidly trying to change two things at a time). BAM, computer boots... I put back in the 80GB drive that's been "fixed" by MacDrive and BAM, that boots fine too.
So then I put back in the airport card and it will boot, but won't recognize the airport card. I've re-seated it about a dozen times and have used terminal cleaner on the card and on the socket for the ribbon cable from the card slot to the logic board. As it sits, I can't get the airport card (either of the two) to show up at all. I did realize that the open firmware did reference a problem, but I forget the code now and when I looked it up, the references were to a failure of the airport card, but there were also more general references, so I can't be sure.
I'm thinking now that it's the airport card controller on the logic board, the bottom RAM slot and a corruption of the hard drive. Yes, there was a history of moisture into the device and I think a drop in it's past too. I'm the Mac repair technician for the people at the local bike shop, so I get to trade my repair work for their bike repair work. The problem is that they ride their laptops like their bikes, hard and greasy. I'm really wondering about ways to get the airport card back up and running. Or, baring that, a good card-based wireless adapter that I can slide in.
I have a G5 dual 1.8 power PC...Bought some ram put it in & booted up. Then a red light came on the logic board behind the power button. The machine wouldn't turn on....I called apple care & we rearranged the ram, now the red light is gone but my system still won't boot up. The white power light blinks every few seconds... the apple store told me sorry can't help because your machine is vintage. Even if my logic board is fried is there a place to buy one on the cheap?
I just bought a new Logic Board for a 1.25Ghz eMac and I've put almost everything back together after installing it until I ran into a problem. The power button cable that runs from the power button on the casing into the logic board has no connector on the Logic Board itself, now I have an old logic board that whilst being broken has a connector on it but I really don't want to have to solder the connector on for fear of breaking the logic board.
I was attempting to replace the hard drive in my eMac, but for instructions I HAD to follow some darn take-apart guide that said pull out the connection for the power button cord from the logic board. I didn't know that it was SOLDERED in there, and now I can't complete putting my eMac back together without doing so.
Can this be fixed without having to send it to Apple? Does it HAVE to inolve soldering, or is there an alternative? Is there a way I can temporary have my eMac power on until I get the connector fixed?
First of all, Noob imac owner here. I was just handed down an old imac g3 400mhz desktop that doesn't power at all.When hitting the power button on the unit or keyboard, the units screen makes a noise. No hard drive or green light comes on at all. At dead silence in the room, i can hear the screen flicker, like a tv would come on. I went to go about and read a few problems before, replaced the battery and even tried a new power cord. Any Ideas?
In OSX 10.9.2 [mavericks]¬† when I shrink a document [yellow button] where it goes nor how to retrieve it. Sometimes they stay for a while in 'application windows' but then soon disappear. Does they are visible somewhere as thumbnails and can be retrieved as I used to be able to do in snow Leopard?
I have just ordered a xfx 4870 that will be placed into my mac pro 2006 (1.1). I dont have the infamous power cables from ati so i was wondering if it would be possible to use the power from the optical drive. i have two 6-pin pcie power cables that each connects to a 4-pin molex. i addition to these i have a 4-pin molex Y splitter.
With this setup i should be able to feed the card with power but is this dangerous or will the system be unstable? what will happen
Running Firefox for OS X version 3.6.3. After about 20 minutes of use, the yellow minimize window button turns grey, and is not available. When I quit the browser and relaunch it, the yellow middle button is back.
MagSafe power cord for MacBook lights up green for one second and then lights up orange for one second, then goes dark. Battery shows MacBook has no power anymore, so will not boot. I cleaned the contacts and none are pushed down. What are my next steps?
Using the ati flashing tool I flashed the XFX 4870 1GB ZFWC. When I start up a dialog shows up saying the cables are not connected, when in fact they are (I have double and triple checked). Also when I put the computer to sleep then wake it up a weird distorted blocky pattern appears and I have to restart the computer to fix the problem.
My macbook pro's charger is not working - occassionly it will light up orange and charge but most of the time it will not The charger is a 60w magsafe power adapter I have had this charger for approx 3 years One of thee adaptors ends for some reasons has slightly deviated towards the right and its silver plating has been scratched to show the gold core would this effect the chargers ability¬†What is the chargers problem?¬†Also would it be safe to use my macbook charger on the macbook pro?¬†Also the battery icon occassionally says service battery , is this due to overcharging the laptop