Powerbook doesnt boot ?

Hi, I've tried to power my powerbook g4 this morning and it doesnt boot up?
When pressing the power button you can hear it attempt to power up but then it just make a funny beep.
What can i do? the screen doesnt come on as well

Your best best is to stick with Crucial, Kingston, or Samsung. Crucial is sold by direct and thru retailers. The Crucial UK site is at http://www.crucial.com/uk/ . Kingston's site is at http://www.kingston.com/ukroot/ (note, avoid their valueram line of memory as it usually doesn't work in our Powerbooks). Samsung is sold thru retailers. Online in the US you can get it from http://www.macsales.com - sorry, can't give you a UK retailer. You can pick up the stock number of the memory needed from the vendors sites then look locally too

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There is no fan, but what you hear might be the hard disk. BTW, does the Booklet/BIOS really not offer an option to boot from SD cards (which has been a common feature for ages on many notebooks featuring such readers), or do they just need to be formatted in some particular/peculiar way? I did see an "Operating System not found" error message when waking up from hibernation while an SD card was plugged in, so under some circumstances it DOES seem to try (and give preference over the hard disk).

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See my reply to your other post in this forum.

MacBook doesnt boot when wi-fi router is on.

Greetings.
Thats pretty weird but it is how it is. First time my mac refused to boot i was really confused: tried everything and it didnt help: i saw a loader on the screen but it didnt boot further. Then i decided to re-install Mac Os. Did it, but next time i turned my Mac off i wasnt able to boot it again.
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Could it just be stuck trying to join a Network, or mounting a Share of some kind?
Might try dragging these to the Desktop, reboot, and see if it works...
/Users/YourUserName/Library/Preferences/com.apple.internetconnect.plist
/Library/Preferences/SystemConfiguration/preferences.plist
/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist
/Library/Preferences/com.apple.sharing.firewall.plist
Also any...
~/Library/Preferences/ByHost/com.apple.networkConnect.<12 digit number>.plist

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Servus alltogether,
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Try starting up from a CD (Apple-C) or in safe mode: http://docs.info.apple.com/article.html?artnum=107393
Either of these methods should get your booted. Then, back up your data! Next, try Disk Utility to fix your disk. You may have to reinstall the OS. Luckily, you have that backup now.

PowerBook G4 boots to unfamiliar login. List of known user accounts does not appear and original admin user name and password is rejected. What is going on here?

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please, take a look at the tread first. if the suggestions don't work, i believe you'll need battery replacement as you said.
http://forum.lenovo.com/t5/IdeaPad-Y-U-V-and-Z-series/Lenovo-Ideapad-Y560D-AC-Adapter-Battery-Proble...

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If the battery-LED is blinking fast (approx. 2 times per second) remove the battery, disconnect from power supply and press the power-button for 30 seconds. Then attach the power-supply leave the battery off and try to poweron the notebook. Dead batteries also can lead to the symptoms you described.
More hints:
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My home-forum: http://www.thinkpad-forum.de
Wiki: Deutsches ThinkPad-Wiki English ThinkWiki
My ThinkPad-Collection

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Your best bet is to call Tech Support at 1-800-457-7777 and get on record immediately as having problems as well as getting some real time help.
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@ MJ2011
>   too light on the keyboard was flashed
How many times would you say?   ; )
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01732674&tmp_track_link=ot_recdoc/c01443371/en_...
(BING search with
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MB: MSI FM2-A75IA-E53
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ram: Kingston hyperX ddr3 1600Mhz KHX1600C9D3B1K2/8GX
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Quote from: eligiusz on 04-December-13, 01:28:14
Hi , thank you for this post...
the serial number of the board is: 601-7792-010B1303109964
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Laptop doesnt boot after installing a new hard drive

HP G60-630us laptop ...replaced hard drive ...installed 3 startup discs.. after you remove the last disc, when you hit continue it is supposed to boot up ...it reads no bootable device ......if you put the first disc in to boot up, you end up back where you started.....i changed the boot order & put hard drive first ...still doesnt boot up
This question was solved.
View Solution.

Hi,
The image you download should just appear as 1 file. You should then use the 'Burn a disc image' option in Power2Go to write this correctly to a disc.
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

LED blinks upon switching on, system doesnt boot up!!!

I have HP Pavilion dv4 1225dx laptop
While switching on LEDs located near caps lock and num lock are blinking, without any beep sound. At the same time, the exhause fan runs. But the system doesnt boot up. The LED blinks continously, with out stopping. Time to time the system boots up and i was able to work normally, still with blinking LED signals.
To note, i dont see anything in the screen and i tried with alternative screen, but the situation remains...
I checked in the Hp support, which conveys the problem in the CPU. but I was able to login my system even after this problem.
So im not sure my CPU is having a problem.
Before this issue, there used to be a message while switchign on about replacing the internal battery. This i havent done yet. Im suspecting this issue.
Also, recently i cleaned the exhaust windows using an air gun.
Presently, My system is working on windows 8 OS.
I hope to have answers to my problem
Thanks in advance

Thanks for the reply!
But how to overheat the system.
I tried leaving it on for at least 7-8 hrs, then sometimes it starts and not sure about all the time.
Moreover how to switch off the fan to overheat the system.
Anyway both suggestions will take time to switch on, is there any instant solution???
thanks in advance

PowerBook G4 boots to Open Firmware without keyboard access

Summary:
Let me provide a little backstory.
According to the [DARPA Visitor Guidelines|http://www.darpa.mil/body/visitor_guidelines.html] wireless network technology is prohibited from DARPA facilities. Laptops with a wireless card are required to be "disabled at the BIOS level".
Before an upcoming visit to DARPA I was told that I would need to make sure my laptop wireless card was disabled. I mentioned that Macs don't have BIOS but I'd look into doing it in Open Firmware. The response from DARPA was that no one has ever successfully brought an Apple laptop into the facility, and that I should procure a PC laptop for my visit. Ah, a challenge!
I booted into Open Firmware (⌘⌥OF), located the wireless card in the device tree, and removed two properties I figured the driver would be searching for: the vendor ID, and the product ID. I exited Open Firmware and continued to boot into Mac OS X v10.5.2.
Sure enough the System Profiler showed that no wireless card was installed. Success! Now I just need to make the device tree modifications persist between reboots.
It seemed the solution was to place the Open Firmware commands I issued to disable the card into nvramrc. So I set nvramrc to contain the same commands, and set use-nvramrc? to be true. I rebooted the machine but the card was still detected.
A bit [more research|http://docs.sun.com/app/docs/doc/805-4436/6j4719c8v?a=view] revealed that the device tree is not created by Open Firmware until after the nvramrc is executed. The solution is to build the device tree in the nvramrc and tell Open Firmware not to rebuild it. The documentation states that this is accomplished with the probe-all, install-console, and banner Forth commands. I added those commands to my nvramrc and rebooted. The contents of nvramrc:
probe-all install-console banner
dev wireless
" device-id" delete-property
" vendor-id" delete-property
The outcome... well technically the laptop has wireless disabled. Almost everything is disabled. The machine now boots directly into Open Firmware with a few ominous bits of output and no response from the keyboard.
no active package
Apple PowerBook5,6 6.4.9.1f1 BootROM built on 01/21/05 at 10:51:16
Copyright 1994-2005 Apple Computer, Inc.
All Rights Reserved.
Welcome to Open Firmware, the system time and date is 05/06/2008 10:00:00
Command security mode
To continue booting, type "mac-boot" and press return.
To shut down, type "shut-down" and press return.
ok
0 > _
The first sign that something has gone wrong is no active package. The second message just throws another wrench into the works: Command security mode. Yes, the Open Firmware password was enabled. In retrospect this was a bad thing to have set when mucking about in OF. I knew of the RAM change trick (see below) so this was not an issue at the time.
Question:
So the question is: What actions do I need to take to return the laptop to a useable state. That is, booting into Mac OS X.
*Attempted solutions:*
+1. Reset nvram+
The first and most obvious solution is to reset nvram using the snag key combination ⌘⌥PR. Unfortunately do to the firmware password being set, [all snag keys have been disabled|http://support.apple.com/kb/HT1352]. This means no target disk mode (⌘T), boot from CD (⌘C), boot from network (⌘N), etc... In any case an attempt at resetting nvram yields an additional message being appended to the Open Firmware screen:
Release keys to continue!_
+2. Reset nvram after changing amount RAM in system+
Luckily there is a work-around to firmware password protection. Changing the amount of RAM installed in the machine should allow the nvram zap snag to function. I removed one of the two 512MB DIMMS in the laptop and started up while holding down ⌘⌥PR. This results in the same message as above:
Release keys to continue!_
Not so lucky.
+3. Reset the Power Management Unit+
[Resetting the Power Management (PMU)|http://docs.info.apple.com/article.html?artnum=14449] is accomplished by removing the battery and disconnecting the power cord, and then holding down the power button for about 5 seconds. This had no effect besides resetting the system clock to 01/01/1904 00:00:41.
Getting more desperate...
+4. Search logic board for CUDA+
I [opened the machine|http://www.ifixit.com/Guide/Mac/PowerBook-G4-Al-15-Inch-1-5-1-67-BT-2-0 -LR/64] to search for a hidden [CUDA button|http://docs.info.apple.com/article.html?artnum=86760]. As expected, a CUDA button does not exist on this model and the PMU reset is accomplished as noted in attempted solution 3.
+5. Remove internal battery+
Well the laptop is open now, so I tried removing the internal memory backup battery and revisited each of the above solutions. No success.
+6. Remove hard drive+
Again, since the laptop was open, why not remove the hard drive and see what happens. The machine wasn't even making it to the boot-loader hand-off so I didn't expect this to produce any results. No results produced.
Thinking crazy thoughts...
+7. Attempt a firmware update+
Firmware updates have a side effect of resetting the nvram. Also firmware updates are initiated very early in the startup process by holding down the power button until a tone is heard and the power light flashes. My thought was that I would grab a previous firmware update for this laptop and force it to be reapplied. Unfortunately there have been no updates to this model's firmware.
+8. Write my own firmware update script+
While investigating solution #7 I realized that the file BootROMFirmware installed by the firmware updaters for G5s and G4s machines are just Forth programs with a binary payload attached to the end. I learned [Forth|http://en.wikipedia.org/wiki/Forth(programminglanguage)]. The BootROMFirmware files are really cool, since they do everything from drawing the progress bar during the update, uncompressing and check-summing the binary payload, and generally making sure you don't brick your machine. In any case it seem entirely doable to write my own program in Forth and undo the evil I did before. I really only need to flip one bit. I needed the use-nvramrc? variable set to false. So I created this very simple Forth program:
\ debrickifier
setenv use-nvramrc? false
reset-all
The original firmware file had additional attributes set, a creator and file type of fw99. So I set those two attributes on my file as well. I ran strings on the firmware installer program and guessed that it was copying the file to /System/Library/CoreServices. So this is where I placed my Forth file. Reinstalled the drive and rebooted the laptop while holding down the power key to initiate a firmware install. No dice.
Its hard to tell why this is failing. The file may in the wrong place, have the wrong permissions. From what I've reviewed in the original files, the setenv and reset-all words should be available. Maybe the Firmware Update utilities are setting some other magic in nvram before the reboot.
I think I've covered all the different major solutions that I've attempted. Their might be a few more that I've forgotten to mention (like using an external USB keyboard). I still think that getting some Forth to execute via the firmware update mechanism could use some more exploration. My current worst case is that I'll replace the logic board, although I'd hate to do that when I know there are only a few bad bits flipped in a CMOS somewhere.
I'm hoping to snag the attention of the resident hardware/firmware guru that can shed some light upon the firmware update process, but any help or suggestions would be greatly appreciated.
Cheers,
Mark

For your next DARPA visit, another option might be to buy the cheapest possible third-party wireless card — it doesn't even need to work. Insert it into your Powerbook's CardBus slot before visiting DARPA, and turn Airport off in System Prefs. On arrival at DARPA, remove the card from the Powerbook and hand it to the security guard. Retrieve it from the guard as you leave, and turn Airport back on again when you get home or back to your office. Unable to comply with the letter of the dunderheaded regulation because you have no BIOS, you will be complying with the spirit of it instead, and no one will be the wiser.

Powerbook doesnt boot ?

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