I cannot start my g5 mac os x 10.4.11, startup light flashes six times
I cannot start my Powermac g5, with OS X 10.4.11; startup light (which you can see under DVDrom drive) flashes six times; I have 4 GB RAM, I have tried to change the memory bars in different position or remove 1 couple but no change; I have also tried to install the hard drive system in another mac and from there I could well open the drive and see all the files; then I put the drive back on my machine but computer does not start.
Can anyone help ?
Hello,
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable
In addition to the beeps, on some computers the power LED will flash a corresponding number of times plus one. The LED will repeat the sequence after approximately a 5-second pause. The tones are only played once.
Note: In this case, a flash is considered to be 1/4 second or 250 ms or greater in length.
http://support.apple.com/kb/HT1547
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Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
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2. Reinstall Snow Leopard
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Download and install Mac OS X 10.6.8 Update Combo v1.1.
=======================================
Reinstall - Mavericks, Lion/Mountain Lion
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Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
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Solution: mac os x cannot start up from this volume
I purchased a new WD 300GB SATA drive recently to replace a failing OEM 250GB drive in a G5 tower. I installed the new drive and ran the 10.4.3 Installer DVD. I opened Disk Utility, selected the new drive, clicked the Erase tab, etc., etc. Went back to the Installer, saw an error: "You cannot install OS X on this volume. Mac OS X cannot start up from this volume."
Long story short, it appears that sometimes Disk Utility doesn't actually correctly format the drive. The key thing to look for is that if you go to Disk Utility and select the physical drive volume, then hit Get Info, under Partition Type it will say "FDiskpartitionscheme," even though it claims to be formatted Mac OS Extended, Journaled. The Installer will reject any disks not listed as "Applepartitionscheme."
The solution is to go back into Disk Utility and try different methods of reformatting (select the physical drive, select the logical volume, Erase, Partition, etc.) until you get "Applepartitionscheme." Then it should work fine.To install Panther, you need the retail install version CDs (black with silver X). I suspect you are trying to use a model specific version or upgrade version (gray), that won't work.
When you formatted the new drive, did you check to install the OS 9 drivers? The drivers need to be installed if you want to be able to boot OS 9.x. If you just want to be able to run in classic mode, the drivers are not necessary.
If OS X has never been installed on your Mac, you need to check if your Mac requires a firmware (Boot ROM version in System Profiler) update. Mac OS X: Available firmware updates
http://docs.info.apple.com/article.html?artnum=86117 If an update is required, the update must be installed (using OS 9) BEFORE you install OS X.
Cheers, Tom
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