Stop Microsoft
Operating Systems => macOS => Topic started by: IKEA on 19 July 2004, 00:18
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I'm wondering if there's any way to overclock my 800mHz iMac to, say, 1gHz.
The only thing comparable to the PC BIOS on the Mac is Open Firmware.
I mean, there are otherways of OC'ing a PC, like for eg. apps like Clockgen, but I dont know if there's anything like that for Mac.
Cheers, and thanks in advance,
IKEA
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(http://www.liepins.de/backspace/img/overclocked/PDRM0003.jpg)
overclocking sux
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What possible gain would overclocking the mac give you? Hotter processors, and inadequate cooling does not sound like a good idea to me either.
IKEA
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It's possible to safely and easily overclock a G3-266 to 300Mhz. No idea about any recent models.
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Why?
Overclocking does suck. All it does is make your computer freeze all the time a run a tiny bit faster.
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There is an app called iCook that overclocks G3 iBooks 100mhz above their rated clock speed.
get it here: http://www.macupdate.com/info.php/id/15318 (http://www.macupdate.com/info.php/id/15318)
I do not recommend overclocking an iMac in any way. Their cooling systems definitely couldn't handle it.
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I don't know about Macs but I've been told that there's not much difference between my 1800MHz AMD processor and a 2GHz AMD, apart from the clock speed.
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If you look around on Google, there's some resources on overclocking various macs (but I didn't see anything abou an iMac). You could probably overclock if you went into open-firmware and messed with settings for your processor. I haven't looked in a while at how to use open-firmware, let alone how to to it though.
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quote:
Originally posted by Claris:
I do not recommend overclocking an iMac in any way. Their cooling systems definitely couldn't handle it.
What cooling system? (http://tongue.gif)
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quote:
Originally posted by WMD:
What cooling system? (http://tongue.gif)
Good point... :(
Thing is, I don't have quite enough cash for a new computer, and some apps are quite lame on this one.
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800Mhz iMac is slow?
Post the rest of your specs.
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G4 800?
that shouldn't be slow.
very likely you have some shitty ass 128MB of RAM or something.
I had 512 in my G3 500 iMac and it was plenty fast.
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Nope, 512mb RAM, but the comp is acting a little strange lately.
I'm going to reformat the HD tomorrow, anyway. I'll see if it's any faster then.
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quote:
Originally posted by IKEA:
Nope, 512mb RAM, but the comp is acting a little strange lately.
I'm going to reformat the HD tomorrow, anyway. I'll see if it's any faster then.
There are things you could try before reformating, like zap the p-ram, repair disk permissions, and use utilities like OnyX (http://www.titanium.free.fr/english/onyx/index.html) (free) or Cocktail (http://www.macosxcocktail.com/) (shareware).
This isn't windows you know....
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Heh, fair enough, but see, another reason for me reformatting is so I finally get my ass up to weed out the approx. 15 gigs of trash I store on my computer.
Oh, and:
I tried resetting the p-ram, which didn't work.
I tried creating a new user account, which worked for about two weeks, after which these strange things started to happen again.
For instance:
Some apps don't work or crash every time I open them
App settings randomly and mysteriously get reset.
--IKEA
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Is it the original Apple OEM install?
if so, just bust you discs out and do an "Archive and Install"... do not save user settings.
That'll wipe out OS X and any bad settings, but save all your data and apps
Your previous Home folder will be in
/Previous Systems/Home/
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I looked around a bit, and if you're interested in technically nerdy stuff (who isn't?) you can get some good information about using open-firmware from kernelthread.com (http://www.kernelthread.com/mac/osx/arch_boot.html) and the NetBSD website (http://netbsd.org/Ports/macppc/faq.html#ofw). Good places to look would be the device tree, but I wonder what to do after that....
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I'd suggest permissions repair with disk utility. Then reboot holding the S key, and at the UNIX prompt type:
fsck -y -f
And do it over and over until it says no problems found.
Viola, disk errors repaired, permissions repaired, no more problems. Hopefully.
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quote:
Originally posted by Praxis:
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quote:
Praxis: Viola, disk errors repaired, permissions repaired, no more problems. Hopefully.
Nah, I got bad clusters on my Linux router machine once. You can run fsck all you want, some files are just plain gone (http://smile.gif)
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many people over clock there macs!i just dont do it cause i kinda screwed up my g3 fan :rolleyes:
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Hey, IKEA, in case you come back...download this app:
http://www.apple.com/downloads/macosx/system_disk_utilities/xupport.html (http://www.apple.com/downloads/macosx/system_disk_utilities/xupport.html)
Has some nice stuff to configure/maintain OS X.