B&W G3 Powers On No Chime Black Screen

I have a B&W g3 that has been upgraded to a 600mhz G4. It has been workin g well for several years now. Yesterday I booted into OS X 10.4.11 and it had a kernel panic. I tried restarting to no avail. Everything powers on, the fans the optical drive and the hddrives. The power button is green but there is no chime and the screen is black. There is no power to the USB ports so I can't use the keyboard to flash PRAM or boot into open firmware. I've tried the CUDA and taking out the battery. Any other suggestions would be appreciated.

There's a (small) diagram of a B&W logic board here.
http://www.macgurus.com/products/motherboards/mbppcg3bw.php

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Imac wont start up after new RAM, no chime, black screen

Hi, I've recently purchased a used 2010 iMac i3 that had faulty RAM.
This was confirmed as the issue when I tested a friend's original RAM from the same age iMac and the machine worked perfectly.
I then ordered 2x 4gb Crucial memory (upgrade from the 2x 2gb already installed) but kept getting kernal errors and RAM integrity check errors so the modules were returned and replaced by crucial.
Prior to returning, I attempted to reinstall a fresh copy of mavericks, but the hard drive failed to completely format, and then the OS install also failed so the machine currently now has no operating system. However before returning the ram the machine would boot up and connect to the internet to attempt to download the OS again.
The replacements have now arrived, but after installing the machine won't even boot. First attempt to start there is a drive noise, and the fans run, but no chime and a black screen. If I force shutdown and try again the drive noise happens twice and the fans run, but the same outcome.
If I remove the RAM I still get the single bleep, and once of all of the times I've removed and reseated the RAM I've had a triple beep integrity check fail.
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Do you still have the old ram? Was orig sticks of ram bad? What happens if you put only one stick of the orig ram back in ?

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Hi
The problem is because of windows update
steps to fallow
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B&W G3 chimes, black screen no boot no power to USB ports.

My precious situation:
I have a B&W g3 that has been upgraded to a 600mhz G4. It has been workin g well for several years now. Yesterday I booted into OS X 10.4.11 and it had a kernel panic. I tried restarting to no avail. Everything powers on, the fans the optical drive and the hddrives. The power button is green but there is no chime and the screen is black. There is no power to the USB ports so I can't use the keyboard to flash PRAM or boot into open firmware. I've tried the CUDA and taking out the battery. Any other suggestions would be appreciated.
Since then:
I couldn't resolve that situation, so I got another one at a local thrift store and swapped in all my pci cards, ram and hdd from the old one. It was working awsome until yesterday. Now the same situation as before. I know what I did wrong this time, but don't know how to resolve it. What happened was I went into start up disk in preferences and chose Mac OS X hdd as start up disk and restarted. Before it was done booting I shut it down with the power button on the front and now this. This time though it does chime when I turn it on. What should I do? I cannot use keyboard commands as there is no power to the USB ports.

Do you have the original bootable Mac OS CD or DVD that came with the machine? I have no experience with the Blue&White G3, but had a beige desktop model a long time ago. Whenever I had some strange boot issues with OS 9 or OS X I was usually able to boot from the original OS 8 CD that shipped with the machine. I could then run disc utility to verify and repair the main internal drive and then try to reboot.
Booting issues are tricky, because you don't really know if you have a hardware or software problem, unless you have another identical working machine and can swap out parts to rule out what you know is good and eventually isolate what is bad. Going back to the original OS on the optical media and the stock machine with no third-party expansion cards is a good baseline configuation to start out from.

Why does my iPhone 3GS keep powering off into a black screen with what looks like a barcode displayed?

My iPhone 3GS keeps powering off at any point when between 5 and 50% battery remains.
I could be in the middle of texting, receiving a call or using an app when all of a sudden the screen goes black and very faint randomly distributed lines are visible from the top of the screen to the bottom. The display looks a little like a barcode. I am then unable to restart the phone without plugging it into a power supply. I've looked on the Internet and cannot find a similair case.
It is so frustrating and I am continually thinking it will crash at any point.
Any help or suggestions would be very much appreciated.
Thanks

When the "white symbol" is the white Apple logo, it is starting up....
Can take some time.

Imac 2011 27inch chimes black screen keyboard is responsive

Hi
When I turn the mac on the screen just stays powered down. The system chimes as normal and if I press keys on the keyboard I can hear that input is being received (the adjust volume beeps etc all normal). The mouse also appears to connect but as no pointer on the screen no way to test this.
No new software or hardware changes.
Any ideas as to the cause or possible resolution.
Not sure of the operating system. I recently inherited the machine from a relative so not sure what OS he was on.

Hold a flashlight at an angle up to the screen. If you can see something on the screen, then it sounds like a bad backlight inverter, a bad backlight, a loose or burnt backlight cable. You might check with your friend, to see if he or someone else recently worked on it. If the backlight cable just came loose, then it is an easy fix. If it is one of the other problems that I mentioned, the it will most likely cost more than the computer is worth to repair.
Additionally most iMac's (depending on the model year) came with either a DVI, Mini DVI or MiniDisplay Port, that you can connect an external monitor to. It won't fix the existing problem, but it might make the iMac usable for a time without dumping money into it for repairs.

Mac Pro (2009) won't start, no chime, black screen

Hi,
I am having a problem with my 2009 Mac Pro. It fails to boot. There is no chime and the screen wont turn on;stays black. It wont boot off of the system dvd and I even tried installing an HD that has a good version of the the OS on it. I also tried booting from the DVD with no installed drives to rule out one of the internal drives doing someothing funky. Nothing happens at all, the HD or DVD will spin for a moment and then all is dead.
Any suggestions? Thanks in advance.

or this one:
Troubleshooting: My computer won't turn on
If no joy, remove anything and everything that may be dragging down the power, in hopes of getting a chime. This includes graphics card, any other PCI cards, all drives, and some say all but a minimal amount of memory. Look for the chime.
If you get the chime, you can build slowly up from there. Add back graphics card and keep going. Add back memory and keep going. Add back DVD reader and boot from Installer/Utilities DVD or run the Apple Hardware Test. And so on.

P.B.R. meaning it Powers on, goes to Black screen, then Red light flashes....?

ill tell you word for word what happen and see if you could help me out. i was listening to music one night with my phone on the charger, and fell asleep. when i woke up in the morning the hour glass would rotate, the screen would go black and a red light will flash. it would repeatedly do this. how do i fix this? or is there any fixing?

Your battery is dead.
Leave the device to charge 2-3 hours, and then, still connected to the USB cable, remove the the battery from the device a few seconds and reinsert it. If it boots--leave it to charge to 100% (check Options > Status for the percentage).
If it doesn't boot--try using a wall outlet charger if you are not. If you are connected via USB to the PC, make certain that you have Desktop Manager (or the USB device drivers) installed, which you can download below.
Here are some good charging tips, please read and you'll see that many of them will apply to you.
http://www.blackberrynews.com/2008/05/20/battery-use-tips-for-your-maximum-battery-life/
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
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Won't start no chime black screen.

Husband used computer last night. Battery died he plugged in turned it on did what he had to do. (working fine)
Went to shut down and failed to wait for it completely before he closed the cover. Now it will not boot.
Acts like it's in sleep mode. Nothing I've tried works. Any suggestions? Sleep light very light when cover open
bright light when it closes. Tried to hard boot, reset, et al.

Tried Multiple times this morning. Let it rest all day, just tried multiple times again to no avail.
Took out battery held down power 5-10 seconds replaced battery and power cord, still nothing.
Cannot do any commands while booting up.

PowerBook 17" 1.33ghz - Black Screen on Boot

Three out of four boot times, this PowerBook fails to boot into the GUI and instead displays a black screen. HD and CD are both running when this happens but there is nothing on the display and the HD does not make normal operation sounds but simply spins. Sometimes, if I wait, it goes to GUI but most times it doesn't. I have run every possible test I can think of from Disk Permissions to Safe Boot to booting with and without battery. Please help if you can.
Message was edited by: nukular potato

Same problem here - with a friend's 15" PowerBook G4.
Once turned off, it takes many start up trials before the machine will finally boot to the desktop - sometimes up to 20 tries!
Pushing the power button will get no start up chime & black screen - so the only indicator that the machine is running will be the faint humming of the hd spin - or hitting the Caps Lock key to see the light come on.
Running Disk Utility from an external drive found no problems - TechTook Pro came up with 1 bad black in the Surface Scan.
Can one bad block cause this issue, or is there something more substantial ?
Hardware Test maybe ?

Black screen, powers up without hitting power button

After 6 months my iMac G5 20" rev. B working fine (other than failing to sleep automatically - will sleep display but hard drive does not power down) I'm having problems. The screen goes black and I cannot re-boot: I get power but the screen either stays black or, sometimes, freezes at gray. I have repeatedly tried resetting PRAM and PMS.
After 1.5 hours with an AppleCare rep, with no success starting the machine, I took it to my local Apple Store and (of course) they were unable to replicate the problem, although they did run Techtool on it all day and found no problems with either the hard drive or the memory. (I'm a little ticked that they didn't even bother to read the notes from the AppleCare rep - the attitude seemed to be that neither the AppleCare rep nor I knew what the heck we were talking about.)
So I took it back home and lo and behold it did start up normally. So (after backing up my files) I did a complete erase with only stock Apple programs reinstalled. It worked fine for a few hours but then the exact same thing happened: black screen, unable to start up although I get power (the screen stays frozen at black for about 60 seconds, and then the fans come on full speed which I understand is because there's no OS running to regulate them). Only now there's one new development: whenever I plug the iMac back in - whether by pulling the plug out of the back of the unit, or unplugging the cord at its far end - the computer automatically powers up without my pressing the power button. That happens even after I've used the power button to turn it off. That seems weird as well as potentially a safety issue.
I have it in for servicing again - this time, to the local reseller I bought it from, because they don't require an appointment and force you to wait around for hours merely watching them run Techtool - after another hour-long session with an AppleCare rep was unable to get it working and the rep said it was "definitely" a hardware problem. I'm just wondering if anyone else has had similar issues: especially the "powers on without pushing the power button" phenomenon.
I have 2G aftermarket RAM but don't think that's the problem because the same issues occur regardless which RAM stick is in the machine, even after resetting PRAM and PMS and doing the system erase and install. Also, the Apple Store did test the memory with Techtool and said it was fine.

After again experiencing problems I took the iMac back to the reseller where I bought it. They were able to replicate the defect and I received a new logic board. The invoiced cost (covered by warranty, luckily!) was $1,067 for the logic board and $85 for labor. The hard drive was erased but OSX Tiger was pre-installed when I picked up the computer. (BTW, Backup 3 is a very nice backup utility!) Now my iMac seems to be working perfectly, and the energy saver/sleep function works normally again.

Black Screen - Get Chime - Can Boot off HDD using another Mac - iMac 24in.

Hope someone can help me here, as I'm at my wits end.
I've got two issues, one with my MacBook Pro 17in, 4GB RAM, 160GB 7200rpm (2008) and another with my iMac 24in. 4GB RAM, 500GB 7200rpm (2009).
Firstly the MBP, left work on Thursday last week, got home, powered up the MBP and got a black screen!!! Tried resetting PRAM, SMC, booting in safe mode, removing and re-installing RAM, removing battery and mains power and leaving off overnight etc etc, yet nothing happens. Benn all over the forums and have not found any solution to get my beloved MBP working on it's own. I can boot off the HDD using another MBP 15in, re-install Snow Leopard and as far as I can tell the HDD is fine, as I have run disk utility and it tells me the HDD is OK.
I can't figure this out and it's doing my head in, as I use this laptop for business use and just can't afford to go out and buy another Mac. I should point out that this MBP never had any issues when running on Leopard, but ever since I upgraded to Snow Leopard, I have had nothing, but trouble. I did a clean install, in fact I have done it at least twice, even erasing the HDD securely, both at 7pass and 35pass, yet I have had permissions issues regularly and on the odd occasion, I have also had the problem of the HDD not being recognised.
The iMac is nearly the same, but the screen is working, although the iMac doesn't see the HDD no matter what way I do, again, reset PRAM, SMC, safe boot etc etc. In truth the iMac has been a lot more unreliable, but with the screen working, if I can get any solutions here, then I'll be working to work on that without the need or hassle of working via another.
I think that the MBP is only just still under warranty, but the iMac definitely is, but I need at least one working for business use, so really only want to let Apple have one at a time to look at/repair etc.
Ideally, as the HDD is working in the MBP, if I could get a solution to the black screen issue, then I could do without the iMac for whatever time it takes, so if there is anyone out there that can help, I'd be so grateful.
One last thing, when I bought the iMac 24in., I also bought an iMac 20in., but I never upgraded the 20in. to Snow Leopard and to this day, it has worked flawlessly, without a single issue ever.
Perhaps, I'm getting paranoid here, but there seems to me to be a link between the ongoing and regularly occurring problems with both Macs ant the upgrade to Snow Leopard. Why also, or is it just pure unadulterated coincidence that both the MBP and the iMac 24in have failed at pretty much the same time??!!!!
I'm going mental here, so I hope someone out there has a better fix, then me overdosing on Prozac!!
PS
I'm not a mac expert, not good with a soldering iron either, but I'm capable of following good instructions.

Using Snow Leopard forum is probably your best bet.
I don't care if someone has 20+ yrs, I still like having a good troubleshooting book/manual handy.
Mac: can't get by without bootable backups, even if you use TimeMachine, clone your system. Save you all this fuss and work.
Then invest in high quality disk repair and maintenance program.
Disk Warrior / TechTool Pro 5 / Drive Genius 3 - top 3 probably
There are always going to be normal items you just ignore with Repair Permissions. Useful to do once in a while but not magic. Same with SMC and the rest. Running disk repair is one of those things that it seems should be done before there is trouble, not after, and a weakness in HFS file system and disk directory.
Apple Support is a good place to start looking and then hardware category.
http://www.apple.com/support
http://www.apple.com/support/imac /macbookpro etc
Make sure all your software is current, don't install anything you are unsure of or can do without.
Run Apple Hardware Test off your OEM DVD specific to the Mac.
Now, have you Googled for this?
have you looked at reports about 500GB drives used in some Macs that had issues and were offered firmware update for the drive?
Considered just using another drive connected to iMac?
You can overheat a hard drive with needlessly running 7 and 35-write pass, besides which the best way to map out bad blocks is not Disk Utility.
http://www.bing.com/search?q=imacblackscreen
http://www.bing.com/search?q=AppleiMac+firmwareupdate
I'd direct your replies to iMac and MacBook Pro as well as to Using OS X Snow Leopard areas.

Black Screen on MBP, Can hear chime and can boot from HDD via another MBP!

Hope someone can help me here, as I'm at my wits end.
I've got two issues, one with my MacBook Pro 17in, 4GB RAM, 160GB 7200rpm (2008) and another with my iMac 24in. 4GB RAM, 500GB 7200rpm (2009).
Firstly the MBP, left work on Thursday last week, got home, powered up the MBP and got a black screen!!! Tried resetting PRAM, SMC, booting in safe mode, removing and re-installing RAM, removing battery and mains power and leaving off overnight etc etc, yet nothing happens. Benn all over the forums and have not found any solution to get my beloved MBP working on it's own. I can boot off the HDD using another MBP 15in, re-install Snow Leopard and as far as I can tell the HDD is fine, as I have run disk utility and it tells me the HDD is OK.
I can't figure this out and it's doing my head in, as I use this laptop for business use and just can't afford to go out and buy another Mac. I should point out that this MBP never had any issues when running on Leopard, but ever since I upgraded to Snow Leopard, I have had nothing, but trouble. I did a clean install, in fact I have done it at least twice, even erasing the HDD securely, both at 7pass and 35pass, yet I have had permissions issues regularly and on the odd occasion, I have also had the problem of the HDD not being recognised.
The iMac is nearly the same, but the screen is working, although the iMac doesn't see the HDD no matter what way I do, again, reset PRAM, SMC, safe boot etc etc. In truth the iMac has been a lot more unreliable, but with the screen working, if I can get any solutions here, then I'll be working to work on that without the need or hassle of working via another.
I think that the MBP is only just still under warranty, but the iMac definitely is, but I need at least one working for business use, so really only want to let Apple have one at a time to look at/repair etc.
Ideally, as the HDD is working in the MBP, if I could get a solution to the black screen issue, then I could do without the iMac for whatever time it takes, so if there is anyone out there that can help, I'd be so grateful.
One last thing, when I bought the iMac 24in., I also bought an iMac 20in., but I never upgraded the 20in. to Snow Leopard and to this day, it has worked flawlessly, without a single issue ever.
Perhaps, I'm getting paranoid here, but there seems to me to be a link between the ongoing and regularly occurring problems with both Macs ant the upgrade to Snow Leopard. Why also, or is it just pure unadulterated coincidence that both the MBP and the iMac 24in have failed at pretty much the same time??!!!!
I'm going mental here, so I hope someone out there has a better fix, then me overdosing on Prozac!!
PS
I'm not a mac expert, not good with a soldering iron either, but I'm capable of following good instructions.

Concerning your imac, have you tried installing the OS on an external drive and running the iMac from that? My friend in Texas had her iMac's hard drive vanish, so we installed the OS on an external FireWire drive I happened to have and then restored her data from a recent backup. So far I haven't had time to install the drive in her iMac, so it's been running off of the external for a long time now. Perhaps you could do something like that so you could at least have the use of the iMac while your MBP is in the shop. Once you get the MBP back, you can send in the iMac.
Be sure to report both of these to Apple and get case numbers so that you can document that the issues started while you were still under warranty--especially for the MBP that's about to go out of warranty.
Good luck!

When I power up my 2008 Mac Pro I get the "welcome", chime, fan goes on, a light goes on on my Apple monitor and then nothing - black screen. Whats going on?

When I power up my 2008 Mac Pro I get the "welcome chime", fan comes on, a light comes on on my Apple moniter and then nothing - black screen. What,s going on?

what you describe as the "welcome chime" is the indicator that your Mac has passed the Power-On Self test, and if a suitable source of software can be found, booting is likely.
If the screen stays dark, the most likely explanation is a graphics card failure. But it could also be caused by a backlight failure in the LCD, so be sure you try shining a bright light at the screen to be check whether the picture is there, but just not illuminated.
Graphics card failure will end the boot-up process in some cases, and not have an impact in others. Two external indications you can use when your display is not working are: The Caps Lock key, which is under the control of Mac OS X, and the Control-Eject dialog box shown below. Note that the default is Shutdown, so a Mac that shuts down in response to Control-Eject followed by Return is working fine.

Macbook pro (early 2011) won't boot after sleep. Black screen with chime

I put my macbook pro early 2011 (Quad, 8 Gb RAM, 2 x SSD-disks, external 27" LED-screen) into sleep mode a couple of days ago. Everything was fine then.
However, the morning after it wouldn't wake up - this is the bootup process:
- Black screen
- Chime
- Still black screen, nothing happens.
So I've tried resetting NVRAM, SMC etc - no luck. Even tried the "Powerbutton" + "S" + Enter but to no avail.So I immediately began dd:ing my SSD-disk before trying anything else, figured it might be some preboot-corruption of some sort since I'm running FileVault2 with full AES-encryption.
Now, the problem (after some troubleshooting) doesn't seem to be disk-oriented. Remember the black screen? I've tried pulling the SATA-cables one by one on the motherboard of the Macbook pro and discovered that when I pulled the cable which reaches over the optical device (just above the SATA-cable for the optical device) then I get a white screen and I'm able to get as far as boot-option, or even disk repair (if I run my SSD-disk over USB and without any cables (three of them) attacked to the motherboard).
So since nothing works when I have disks connected or that third cable (some kind of logic board bridge? Reaches through the screen over to the other side of the mother board).
Also worth noting is that I was running out of free disk-space on my system disk. The disk is 250 Gb and free space was about 5-10 Gb (less than 5%). I also make the macbook pro dump contents of memory to disk (since my disk is encrypted it resides safely there).
So, my fear is that Apple hasn't used A-grade controllers for the disk drives (I've had drive corruption before, a Crucial 6 GB/s drive trashed less than a week before a presentation) and doesn't handle "unexpected events" nor signal/noise ratio very well. Maybe free space on disk was less than the 8 Gb needed to dump RAM (shouldn't have needed the full 8 Gb though) and this caused some kind of panic overwrite which trashed the controller?
Anyways, I've attached an image of the motherboard and I am wondering - what does the top cable which reaches over the optical drive do? Is it connected to the logic-board?

sspott wrote:
** The volume Macintosh HD could not be repaired.
Looks to me like a fatal error on the hard disk. IMHO, the only solution is to boot from an external device, reformat the hard drive, and restore from backup. If you don't have a backup, you're in trouble. Boot from the external device, try to mount the int'l drive, and, if successful, back up as much as possible. Also, try running Disk Utility—it may be possible to fix it while booted from a different device, thought I wouldn't bank on it. At any rate, make sure to run an AHT afterwards, to check for possible hardware issues with the drive.
If the machine is still covered by AppleCare, take it to the store by all means. But they won't try to recover anything from the int'l drive, just check it, erase it if they don't find hardware issues, and re-install a fresh copy of the OS.
That's why you should always have at least 1 up-to-date backup (2, with one kept off-site, is better).

B&W G3 Powers On No Chime Black Screen

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