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700mhz eMac CPU Overclock
- Thread starter bigbadmac
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I think all he can do with that G5 dual processor is upgrade to a 2.0 dual logic board? Neither are liquid cooled and neither should be confused with the dual CORE G5s.
(Super Bump)
Just used this info to overclock an eMac I inherited from my brother's wife from when she went to college (still has its original box / packaging too!).
Its a 1st Gen G4 (2002) @ 800Mhz 256MB PC-133 w/ 100Mhz bus w/ Nvidia graphics w/ 60Gb HDD w/ Super Drive.
Model PowerMac4,4
OC'd to 1GHz, borrowed some additional RAM (now 512MB PC-133).
Re-used a 320Gb 7200RPM PATA drive that was laying around to replace the 60Gb.
Re-used a Sony DVD RW PATA drive that was also laying around, apparently Apple must have used this drive in some Mac as it is detected as Apple Shipping Drive.
Depending on how well it works I may spend the $50 to get 1Gb of RAM.
Working on installing Leopard now since it exceeds the CPU speed minimum requirements, and now meets RAM minimums.
I went from the 800MHz stable setup (OEM for my machine) and went directly to the 1GHz speed based on the fact that the 700Mhz model could do 900 Stable I figured since mine was clocked higher it may have been a better quality processor since it was OEM rated higher so I tried the same MHz boost amount.
It has been running for several hours and seems cool, ran in firewire target mode for a while too without issues.
The Leopard installer is running now....
This is just a for fun Mac as I have a MacPro3,1 (Early 2008 dual quad @ 2.8GHz 18Gb DDR2-800) and MacBook Pro 15" (early 2008? 4,1 or 5,1 cannot remember right now)
Just used this info to overclock an eMac I inherited from my brother's wife from when she went to college (still has its original box / packaging too!).
Its a 1st Gen G4 (2002) @ 800Mhz 256MB PC-133 w/ 100Mhz bus w/ Nvidia graphics w/ 60Gb HDD w/ Super Drive.
Model PowerMac4,4
OC'd to 1GHz, borrowed some additional RAM (now 512MB PC-133).
Re-used a 320Gb 7200RPM PATA drive that was laying around to replace the 60Gb.
Re-used a Sony DVD RW PATA drive that was also laying around, apparently Apple must have used this drive in some Mac as it is detected as Apple Shipping Drive.
Depending on how well it works I may spend the $50 to get 1Gb of RAM.
Working on installing Leopard now since it exceeds the CPU speed minimum requirements, and now meets RAM minimums.
I went from the 800MHz stable setup (OEM for my machine) and went directly to the 1GHz speed based on the fact that the 700Mhz model could do 900 Stable I figured since mine was clocked higher it may have been a better quality processor since it was OEM rated higher so I tried the same MHz boost amount.
It has been running for several hours and seems cool, ran in firewire target mode for a while too without issues.
The Leopard installer is running now....
This is just a for fun Mac as I have a MacPro3,1 (Early 2008 dual quad @ 2.8GHz 18Gb DDR2-800) and MacBook Pro 15" (early 2008? 4,1 or 5,1 cannot remember right now)
If you have nothing else to do, you could also try 1050MHz by desoldering the one with the lower component denominator (PLL_CFG[2])
http://www.freescale.com/files/32bit/doc/data_sheet/MPC7447AEC.pdf (Page 35)
It was really 'fun' to get into the case to get to do it and swap out the HDD / ODD but for the life of me I cannot get Leopard to install.
I keep getting failure to verify the BaseSystem.pkg.
I have tried with 10.5.0 disk and 10.5.4 disk.
I have tried booting from USB (which it does boot to the installer) but I still fail to get it to install it claims bad media causing the verification failure.
I don't have the restore discs for the eMac to put back the original OS either.
Just wondering if the OC is the issue?
It doesn't freeze or anything so it appears stable I just cannot install the damn OS.
Also since i have 1st Gen 800MHz I don't believe I can go any higher than 1GHz...
Model M8892LL/A
A1002
I keep getting failure to verify the BaseSystem.pkg.
I have tried with 10.5.0 disk and 10.5.4 disk.
I have tried booting from USB (which it does boot to the installer) but I still fail to get it to install it claims bad media causing the verification failure.
I don't have the restore discs for the eMac to put back the original OS either.
Just wondering if the OC is the issue?
It doesn't freeze or anything so it appears stable I just cannot install the damn OS.
Also since i have 1st Gen 800MHz I don't believe I can go any higher than 1GHz...
Model M8892LL/A
A1002
Burning a copy of Lubuntu 12.10 PPC desktop right now to see if I can figure out if I have a bad HDD in the eMac.
I have a spare 200GB PATA drive as well but I wasn't sure what one was having issues.
I had them in my Mac Pro as a RAID stripe that failed recently.
---------
Edit:
Trying Lubuntu 12.10 (burned to DVD)
Panics after attempting to boot to Live disc with this error:
VFS: unable to mount root fs on unknown-block(1,0)
Rebooting in 180 seconds...
This makes me wonder about the HDD.
Curiously the drive is marketed as a 320GB drive, even its p/n indicates its a 320GB drive.
When in the OSX Leopard installer its a 298GB drive, but over Firewire it sees and allows me to create a full 320Gb partition.
Confused as to why its letting me do 320.07GB when the drive is not that large. It should only be showing up in the 298 range.
So setting up partitions like this:
30GB - empty
120GB - will attempt install
10GB - installer restored to partition
130GB - will attempt install
30GB - empty
I might have to pull it apart and swap in the 200GB drive or even the OEM drive.
-----
Edit 2:
2013-05-04 15:47:08 -0500: Restore Disk
2013-05-04 15:47:08 -0500: Source: “Mac OS X Install DVD”
2013-05-04 15:47:08 -0500: Destination: “Middle-install”
2013-05-04 15:47:08 -0500: Erase Destination: Yes
2013-05-04 15:47:08 -0500: Erase “Middle-install” and copy the contents of “Mac OS X Install DVD” to it.
2013-05-04 15:47:08 -0500: Starting Restore…
2013-05-04 15:47:08 -0500: Validating target...
2013-05-04 15:47:08 -0500: done
2013-05-04 15:47:08 -0500: Validating source...
2013-05-04 15:47:08 -0500: done
2013-05-04 15:47:09 -0500: Validating sizes...
2013-05-04 15:47:09 -0500: done
2013-05-04 15:47:09 -0500: Restoring
2013-05-04 15:58:40 -0500: Verifying
2013-05-04 16:06:08 -0500: Checksum failed.
Expected FBEDBD52
but got C7D81F
2013-05-04 16:06:08 -0500: Could not restore - Invalid argument
I have to think that it must be a bad HDD then?
If I try to boot from what that 'restore' just created I get:
DEFAULT CATCH!, code=300 at %SRR0: 06610b84 $SRR1: 0003030
Apple PowerMac4,4 4.4.2f1 BootROM built on 04/12/02 at 16:08:28
Welcome to Open Firmware, the system time and date is: 16:09:44 05/04/2013
Last edited:
I ended up redoing the overclocking down to 900MHz, now its able to run the installer without issue.
I borrowed a friend's PowerMac G4 967MHz model and was able to install using FW target mode but it would fail to boot claiming it couldn't find drivers for this platform.
I temporarily restored an install of 10.4.11 server from another machine to see if the 900MHz speed would run properly (not panic during boot etc...)
Now I'm running a fresh install of 10.5.4 retail just waiting to update it to the latest combo update.
Forgot how nice the intro video / music was too bad they dropped it in later releases...
I borrowed a friend's PowerMac G4 967MHz model and was able to install using FW target mode but it would fail to boot claiming it couldn't find drivers for this platform.
I temporarily restored an install of 10.4.11 server from another machine to see if the 900MHz speed would run properly (not panic during boot etc...)
Now I'm running a fresh install of 10.5.4 retail just waiting to update it to the latest combo update.
Forgot how nice the intro video / music was too bad they dropped it in later releases...
Sounds like you need to reformat the hard drive to an Apple Partition Drive... from what you said about the disc space, it sounds like it has been partitioned as a GUID drive, which will not boot into a PowerPC machine, only an Intel Mac.
I have some original eMac Panther Universal discs if you need them; as eMacs were academic machines, they will actually boot into any compatible mac and are truly universal boot discs.
EDIT: okay sounds like you figured it all out
Yeah, got it all figured out.
It runs OK for a 10 year old machine.
Might annoy some people but it lives in the garage now as my computer to use when working on the cars. It will play Pandora from Safari only, and it has to be the active tab in order for it to progress to the next song.
Those eMac speakers are surprisingly loud.
Its on the last version of 10.5.