Question about Apple iMac G4 Desktop

3 Answers

Will not boot after upgrade

Will not boot after downloaded upgrade of bios This is my first time with a Mac so all is new. How do I recover it from this state

Posted by on

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

The MAC Firmware is in no way supperior to a PC BIOS. PC BIOSES have much more visability to the end user and more configurability. On Macs you often have to reset the PMU switch, NVRAM etc when you add new hardware or if the computer crashes. This is a common issue on Mac's. The PMU reset is a little grey/black button on the board. It varies from model to model where it is. Google PMU reset.

Other common issues are power supply problems, PMU batteries (your system may not work right if yours is supplying too low voltage or dead).

P.S. I'm 99% a PC guy and Macs have an issue it generally is 10 times harder to troubleshoot. Even taking it in to a "Mac Genius" is moot. In my experience the "Geniuses" are clueless like Bruce and generally lack any sense about computers.

Posted on Feb 17, 2008

Ad
  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 58 Answers

Back up everything, and do a complete re-instal of the system software.   I don't know if Mac's have any such thing as a BIOS.  They are a completely different, and better, animal.
Good luck.

Posted on Dec 06, 2007

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Suggest you do a clean reinstall from disk but remember to backup your data

Posted on Oct 17, 2007

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I can't find the bios flash instructions .how do you flash the bios on my toshiba a35s159


You should check the Toshiba WEB site for instructions to how to upgrade (flash) your BIOS, if you make a mistake you may not be able to repair or recover from your mistake.

I have done BIOS upgrades on a few computers.
If your Toshiba has a floppy drive and you can boot up from this floppy drive then the BIOS upgrade needs to be downloaded to a boot floppy. Then boot up from this floppy and run the BIOS upgrade program. When completed, remove the floppy disk and boot up your laptop.

YOU MUST CHECK THE TOSHIBA WEB SITE AS THESE INSTRUCTION MAY NOT BE APPLICABLE FOR YOUR TOSHIBA LAPTOP.

Jun 02, 2012 | Toshiba Computers & Internet

Tip

FLASHING BIOS - THE PROCEDURE


BIOS Update Procedure

All latest Motherboards today,ensure that upgrades are easily obtained by incorporating the system BIOS in a FLASH Memory component. With
FLASH BIOS, there is no need to replace an EPROM component. Once downloaded, the upgrade utility fits on a floppy disc allowing the user to save, verify and update the system BIOS. A hard drive or a network drive can also be used to run the newer upgrade utilities. However, memory managers can not be installed while upgrading.
Most pre-Pentium motherboards do not have a Flash BIOS. The following instructions therefore do not apply to these boards. If your motherboard does not have a Flash BIOS (EEPROM) you will need to use an EPROM programmer to re-program the BIOS chip. See your dealer for more information about
this.

Please read the following instructions in full before starting a Flash BIOS upgrade:

A. Create a Bootable Floppy (in DOS)

•With a non-formatted disk, type the following:

format a:/s

•If using a formatted disk, type:

sys a:

This procedure will ensure a clean boot when you

are flashing the new BIOS.

B. Download the BIOS file

•Download the correct BIOS file by clicking on

the file name of the BIOS file you wish to download.

•Save the BIOS file and the Flash Utility file in the boot disk you have created. Unzip the BIOS file and the flash utility file. If you don't have an "unzip" utility, download the WinZip from www.winzip.com or www.pkware.com. Most CD ROMs found in computer magazines, have a shareware version of WinZip on them.

•You should have extracted two files:

Flash BIOS utility eg: flash7265.exe (for example)

BIOS eg: 6152J900.bin (example)

Use the latest flash utility available unless otherwise specified (either on the BIOS update page or in the archive file). This information is usually provided.

C. Upgrade the System BIOS

During boot up, write down the old BIOS version because you will need to use it for the BIOS backup file name.Place the bootable floppy disk containing the BIOS file and the Flash Utility in drive a, and reboot the system in MS-DOS, preferably Version 6.22

•At the A:> prompt, type the corresponding Flash

BIOS utility and the BIOS file with its extension.

For example:

flash625 615j900.bin

•From the Flash Memory Writer menu, select "Y" to

"Do you want to save BIOS?" if you want to save (back up) your current BIOS (strongly recommended), then type the name of your current BIOS and its extension after FILE NAME TO SAVE:

eg: a:\613J900.bin

Alternatively select "N" if you don't want to save your current BIOS. Beware, though, that you won't be able to recover from a possible failure.

•Select "Y" to "Are you sure to program?"

•Wait until it displays "Message: Power Off or

Reset the system"

Once the BIOS has been successfully loaded, remove the floppy disk and reboot the system. If you write to BIOS but cannot complete theprocedure, do not switch off, because the computer will not be able to boo, and you will not be given another chance to flash. In this case leave your system on until you resolve the problem (flashing BIOS with old file is a possible solution, provided you've made a backup before)

Make sure the new BIOS version has been loaded properly by taking note of the BIOS identifier as the system is rebooting.

For AMI BIOS

Once the BIOS has been successfully loaded, remove the floppy disk and reboot the system holding the "END" key prior to power on until you enter CMOS setup. If you do not do this the first time booting up after upgrading the BIOS, the system will hang.

BIOS Update Tips

Note:
1.Make sure never to turn off or reset your computer during the flash process. This will corrupt the BIOS data. We also recommend that you make a copy of your current BIOS on the bootable floppy so you can reflash it if you need to.

(This option is not available when flashing an AMI BIOS).

2. If you have problems installing your new BIOS please check the following:

Have you done a clean boot?
In other words, did you follow the above procedure for making a bootable floppy? This ensures that when booting from "A" there are no device drivers on the diskette. Failing to do a clean boot is the most common cause for getting a "Memory Insufficient" error message when attempting to flash a
BIOS.If you have not used a bootable floppy, insure a clean boot either

a) pressing F5 during bootup

b) by removing all device drivers on the CONFIG.SYS including the HIMEM.SYS. Do this by

using the EDIT command.

Have you booted up under DOS?
Booting in Windows is another common cause for getting a "Memory Insufficient" error message when attempting to flash a BIOS. Make sure to boot up to DOS with a minimum set of drivers.

Important:
Booting in DOS does not mean selecting "Restart computer in MS-DOS Mode" from Windows98/95 shutdown menu or going to Prompt mode in WindowsNT, but rather following the above

procedure (format a: /s and rebooting from a:\).Have you entered the full file name of the flash utility and the BIOS plus its extension?
Do not forget that often you will need to add a drive letter (a:\) before flashing the BIOS.

Example: when asked for file name of new BIOS file which is on your floppy disk, in case you're working from c:\ your will need to type

a:\615j900.bin, rather than 615j900.bin only.

on Dec 30, 2009 | Computers & Internet

Tip

BIOS Update Procedure...


All latest Motherboards today, 486/ pentium/ Pentium Pro etc., ensure that upgrades are easily obtained by incorporating the system BIOS in a FLASH Memory component. With FLASH BIOS, there is no need to replace an EPROM BIOS, there is no need to replace an EPROM component. Once downloaded, the upgrade utility fits on a floppy disc allowing the user to save, verify and update the system BIOS. A hard drive or a network drive can also be used to run the newer upgrade utilities. However, memory managers can not be installed while upgrading.

Most pre-Pentium motherboards do not have a Flash BIOS. The following instructions therefore do not apply to these boards. If your motherboard does not have a Flash BIOS (EEPROM) you will need to use an EPROM programmer to re-program the BIOS chip. See your dealer for more information about this.

Please read the following instructions in full before starting a Flash BIOS upgrade:
A. Create a Bootable Floppy (in DOS)

* With a non-formatted disk, type the following:

format a:/s
*If using a formatted disk, type:

sys a:

This procedure will ensure a clean boot when you are flashing the New BIOS.

B. Download the BIOS file

* Download the correct BIOS file by clicking on the file name of the BIOS file you wish to download.

* Save the BIOS file and the Flash Utility file in the boot disk you have created. Unzip the BIOS file and the flash utility file. If you don't have an "unzip" utility, download the Winzip for windows shareware/ evaluation copy for that one time use from _www.winzip.com or _www.pkware.com. Most CD Roms found in computer magazines, have a shareware version of winzip on them.

* You should have extracted two files:

Flash BIOS utility eg: flash7265.exe (for example)

BIOS eg: 6152J900.bin (example)

Use the latest flash utility available unless otherwise specified (either on the BIOS update page or in the archive file. This information is usually provided.

C. Upgrade the System BIOS,

During boot up, write down the old BIOS version because you will need to use it for the BIOS backup file name.

Place the bootab le floppy disk containing the BIOS file and the flash utility in drive a, and reboot the system in MS-DOS, preferably version 6.22.

* At the A:> prompt, type the corresponding Flash BIOS utility and the BIOS file with its extension.

For example:

flash625 615j900.bin

* From the Flash Memory Writer menu, select "Y" to "Do you want to save BIOS?" If you want to save (back up) your current BIOS (strong recommended), then type the name of your current BIOS and its extension after FILE NAME TO SAVE: eg: a:\613J900.bin

Alternatively select "N" if you don't want to save your current BIOS. Beware, though, that you won't be able to recover from a possible failure.

* Select "Y" to "Are you sure to program?"

* Wait until it displays "Message: Power Off or Reset the system"

Once he BIOS has been succesfully loaded, remove the floppy disk and reboot the system. If you write to BIOS but cannot complete the procedure, do not switch off, because the computer will not able to boo, and you will not be given another chance to flash. in this case leave your system on until you resolve the problem (flashing BIOS with old file is a possible solution, provided you've made a backup before)

Make sure the new BIOS version has been loaded properly by taking note of the BIOS identifier as the system is rebooting.

For AMI BIOS
Once the BIOS has been successfully leaded, remove the floppy disk and reboot the system holding the "END" key prior to power on until you enter CMOS setup. If you do not do this the first time booting up after upgrading the BIOS, the system will hang.

BIOS Update Tips
Note:
1. Make sure never to turn off or reset your computer during the flash process. This will corrupt the BIOS data. We also recommend that you make a copy of your current BIOS on the bootable floppy so you can reflash it if you need to. (This option is not available when flashing an AMI BIOS).

2. If you have problems installing your new BIOS please check the following:

Have you done a clean boot?
In other words, did you the above procedure for making a bootable floppy? This ensures that when booting from "A" there are no device drivers on the diskette. Failing to do a clean boot is the most common cause for getting a "Memory Insufficient" error message when attempting to flash a BIOS.

If you have not used a bootable floppy, insure a clean boot either by

a) pressing F5 during bootup

b) by removing all device drivers on the CONFIG.SYS including the HIMEM.SYS. Do this by using the EDIT command.

Have you booted up under DOS?
Booting in windows is another common cause for getting a "Memory Insufficient" error message when attempting to flash a BIOS. Make sure to boot up to DOS with a minimum set of drivers.
Important: Booting in DOS does not mean selecting "Restart computer in MS-DOS Mode" from Windows98/95 shutdown menu or going to Prompt mode in WindowsNT, but rather following the abovr procedure (format a: /s and rebooting from a:\).

Have you entered the full file name of the flash utility and the BIOS plus its extension? Do not forget that often you will need to add a drive letter (a:\) before flashing the BIOS. Example: when asked for file name of new BIOS file which is on your floppy disk, in case you're working from c:\ your will need to type a:\615j900.bin, rather tham 615j900.bin only.

Good luck!

on Dec 26, 2009 | Computers & Internet

1 Answer

During my Eee Pc 1215N is booting, I press F9 to recover the defort system. It does not work. It went to Windows7 boot up menu. I do not know what can I do? I try to look at /boot/ directory. I cannot...


dear sir, for this problem you have to update your bios First you have to download the latest bios version of your Eee pc from the website of Asus( http://www.asus.com/ ) then select your country and go on service and click on support and then click on download.And then you have to select your product and download the bios of your Eee Pc and upgrade it by using Asus utility service software

Sep 14, 2011 | ASUS Eee 1215N-PU17-SL Notebook

1 Answer

Hello, I upgraded the Dell Vostro 410 BIOS from version 1.0.1 to 1.0.3; the upgrade was successful. Now the computer does not boot. No monitor display from the BIOS starting up and the keyboard num...


As far as I understand there is no way to recover it self the dead BIOS, You can only send it to Dell Service Center and get new Bios chip.
Maybe you need to reset CMOS, to make sure the BIOS is dead or not...

Aug 10, 2011 | Dell Vostro 410 Desktop Computer

2 Answers

Need original bios


you should enter your motherboard manufacture website and dawanload new version

Jan 12, 2009 | Intel D845PT (KD845PTPAK10) Motherboard

1 Answer

Boot failure after upgrading bios asus p4xp-x


You have accidently corrupt mother board BIOS,you have to replace it ...no other choice...

Dec 10, 2008 | ASUS P4XP-X Motherboard

1 Answer

BIOS Update Procedure


BIOS Update Procedure
All latest Motherboards today, 486/ Pentium / Pentium Pro etc.,ensure that upgrades are easily obtained by incorporating the system BIOS in a FLASH Memory component. With FLASH BIOS, there is no need to replace an EPROM component. Once downloaded, the upgrade utility fits on a floppy disc allowing the user to save, verify and update the system BIOS. A hard drive or a network drive can also be used to run the newer upgrade utilities. However, memory managers can not be installed while upgrading.
Most pre-Pentium motherboards do not have a Flash BIOS. The following instructions therefore do not apply to these boards. If your motherboard does not have a Flash BIOS (EEPROM) you will need to use an EPROM programmer to re-program the BIOS chip. See your dealer for more information about this.
Please read the following instructions in full before starting a Flash BIOS upgrade: A. Create a Bootable Floppy (in DOS)
•With a non-formatted disk, type the following:
format a:/s
•If using a formatted disk, type:
sys a:
This procedure will ensure a clean boot when you are flashing the new BIOS.
B. Download the BIOS file
•Download the correct BIOS file by clicking on the file name of the BIOS file you wish to download.
•Save the BIOS file and the Flash Utility file in the boot disk you have created. Unzip the BIOS file and the flash utility file. If you don't have an "unzip" utility, download the WinZip for Windows 95 shareware/ evaluation copy for that one time use from _www.winzip.com or _www.pkware.com. Most CD ROMs found in computer magazines, have a shareware version of WinZip on them.
•You should have extracted two files:
Flash BIOS utility eg: flash7265.exe (for example)
BIOS eg: 6152J900.bin (example)
Use the latest flash utility available unless otherwise specified (either on the BIOS update page or in the archive file). This information is usually provided.
C. Upgrade the System BIOS
During boot up, write down the old BIOS version because you will need to use it for the BIOS backup file name.
Place the bootable floppy disk containing the BIOS file and the Flash Utility in drive a, and reboot the system in MS-DOS, preferably Version 6.22
•At the A:> prompt, type the corresponding Flash BIOS utility and the BIOS file with its extension.
For example:
flash625 615j900.bin
•From the Flash Memory Writer menu, select "Y" to "Do you want to save BIOS?" if you want to save (back up) your current BIOS (strongly recommended), then type the name of your current BIOS and its extension after FILE NAME TO SAVE: eg: a:13J900.bin
Alternatively select "N" if you don't want to save your current BIOS. Beware, though, that you won't be able to recover from a possible failure.
•Select "Y" to "Are you sure to program?"
•Wait until it displays "Message: Power Off or Reset the system"
Once the BIOS has been successfully loaded, remove the floppy disk and reboot the system. If you write to BIOS but cannot complete the procedure, do not switch off, because the computer will not be able to boo, and you will not be given another chance to flash. In this case leave your system on until you resolve the problem (flashing BIOS with old file is a possible solution, provided you've made a backup before)
Make sure the new BIOS version has been loaded properly by taking note of the BIOS identifier as the system is rebooting.
For AMI BIOS Once the BIOS has been successfully loaded, remove the floppy disk and reboot the system holding the "END" key prior to power on until you enter CMOS setup. If you do not do this the first time booting up after upgrading the BIOS, the system will hang.
BIOS Update Tips note: 1.Make sure never to turn off or reset your computer during the flash process. This will corrupt the BIOS data. We also recommend that you make a copy of your current BIOS on the bootable floppy so you can reflash it if you need to. (This option is not available when flashing an AMI BIOS).
2. If you have problems installing your new BIOS please check the following:
Have you done a clean boot? In other words, did you follow the above procedure for making a bootable floppy? This ensures that when booting from "A" there are no device drivers on the diskette. Failing to do a clean boot is the most common cause for getting a "Memory Insufficient" error message when attempting to flash a BIOS.
If you have not used a bootable floppy, insure a clean boot either by
a) pressing F5 during bootup
b) by removing all device drivers on the CONFIG.SYS including the HIMEM.SYS. Do this by using the EDIT command.
Have you booted up under DOS? Booting in Windows is another common cause for getting a "Memory Insufficient" error message when attempting to flash a BIOS. Make sure to boot up to DOS with a minimum set of drivers. Important: Booting in DOS does not mean selecting "Restart computer in MS-DOS Mode" from Windows98/95 shutdown menu or going to Prompt mode in WindowsNT, but rather following the above procedure (format a: /s and rebooting from a:).
Have you entered the full file name of the flash utility and the BIOS plus its extension? Do not forget that often you will need to add a drive letter (a:) before flashing the BIOS. Example: when asked for file name of new BIOS file which is on your floppy disk, in case you're working from c: your will need to type a:15j900.bin, rather than 615j900.bin only.

Oct 19, 2008 | Computers & Internet

1 Answer

Lost itunes songs.


You can check freewarefiles.com or cnet downloads for utilities that might recover them...Mac doesn't have the same install base as PC but I suspect you can find something IF NECESSARY. I say if necessary because if you have them on an external drive (regardless of what happened when you "?upgraded") they should still be there...just copy to your music directory (folder). Now back to upgrade....did you upgrade from an older operating system with an upgrade disk or did you do a new install (some people use the term upgrade a bit differently. If you did a new install they are gone unless (and I am not familiar with Apples current OS's) you can reverse the install (as you can in Windows). Hope this helps....Tango

Jan 20, 2008 | Computers & Internet

Not finding what you are looking for?
Apple iMac G4 Desktop Logo

133 people viewed this question

Ask a Question

Usually answered in minutes!

Top Apple Computers & Internet Experts

marty morrison
marty morrison

Level 2 Expert

26 Answers

Paul Carew

Level 3 Expert

3335 Answers

Martin Buck
Martin Buck

Level 2 Expert

86 Answers

Are you an Apple Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...