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Dadioh

macrumors 65816
Feb 3, 2010
1,123
36
Canada Eh?
Phew! I am away on business at the Moment and thought I would need to triple check when I got home to make sure I wasn't losing my mind :)
 

gpzjock

macrumors 6502a
May 4, 2009
798
33
Nobody answered the question I asked.

I accept the argument that Geekbench is inaccurate to measure the overclock performance as it uses the system clock as a stopwatch.
I would still really like to know how I managed to get such different scores on the same machine with the same overclock "allegedly" running or not as the case may be.
http://browse.geekbench.ca/geekbench2/view/370497
http://browse.geekbench.ca/geekbench2/view/349922
It's still a 3 year old Octo 3,1 and it's still pissing on 2010 quads.
C'mon smart boys work this one out for me, my brain hurts already. :D

Yes I have no bananas, only Apples.;)
 

Dadioh

macrumors 65816
Feb 3, 2010
1,123
36
Canada Eh?
well it depends on if you're correct. I don't own a mac pro to test :rolleyes:

Well this is one time you are going to have to trust me as well as all the other macpro1,1 guys that are successfully using ZDNet Clock with Snow Leopard. At some point you have to realize that you can't prove every single thing to yourself and trust that others may be trust worthy. Others do it all the time for your posts so you just need to reciprocate some times :rolleyes:
 

Pressure

macrumors 603
May 30, 2006
5,180
1,544
Denmark
As far as I am aware, it only works in Leopard.

So you have to boot a Mac OS X (10.5) Leopard partition then change the clocks and reboot into 10.6 ...
 

Dadioh

macrumors 65816
Feb 3, 2010
1,123
36
Canada Eh?
As far as I am aware, it only works in Leopard.

So you have to boot a Mac OS X (10.5) Leopard partition then change the clocks and reboot into 10.6 ...

Well it seems as if this got broken somewhere along the way in snow leopard. When I first got my macpro1,1 in late December 2010 I was running snow leopard and zdclock was working fine. Just tried it now with 10.6.7 and now get the CPU unsupported message. But it was working last time I tried it which was probably February time frame. Maybe 10.6.5 or whatever was available around then? So I think it was broken at either 10.6.6 or 10.6.7.

Doesn't matter much to me anyways. The fast running clock was a PITA for a 14% speed bump.
 

aldem

macrumors newbie
Sep 14, 2009
3
0
Pressure, Dadioh,

Thanks for your attention.

I'll try some old realeases of snow leopard : downloading combo updates of 10.6 and applying them...

perhaps ?

I'll post my results here ;)
 

Matthew92007

macrumors newbie
Jun 17, 2017
10
6
United States, California

DearthnVader

Suspended
Dec 17, 2015
2,207
6,392
Red Springs, NC
Thanks for the speedy reply. I am going to upgrade the CPU anyways, just wondering if there is any other way to overclock a mac pro.

If you know what clock chip it has you can use setFSB:

http://www13.plala.or.jp/setfsb/

If your clock chip is supported, you may be able to set it in Windows and Restart into the macOS, otherwise you'll need to use Grub's IC2 bus access, and boot the macOS with Grub.

I've done it before with Grub, on a few systems, but they were hackintoshes. I don't remember exactly how to do it, but if you clock chip is supported by setFSB, you glean the info needed from there, then use Grub's IC2 bus access to program you clock chip. Once you get it right, you create a Grub script that runs at boot time, then boot the macOS from the grub menu.

On a hackintosh you chianload Clover or whatever boot loader you want to use.
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
If you know what clock chip it has you can use setFSB:

http://www13.plala.or.jp/setfsb/

If your clock chip is supported, you may be able to set it in Windows and Restart into the macOS, otherwise you'll need to use Grub's IC2 bus access, and boot the macOS with Grub.

I've done it before with Grub, on a few systems, but they were hackintoshes. I don't remember exactly how to do it, but if you clock chip is supported by setFSB, you glean the info needed from there, then use Grub's IC2 bus access to program you clock chip. Once you get it right, you create a Grub script that runs at boot time, then boot the macOS from the grub menu.

On a hackintosh you chianload Clover or whatever boot loader you want to use.

AFAIK, you can't set that in cMP, even in Windows. It may display the new number, but the actual speed won't change.
 

friendofthai

macrumors newbie
Aug 13, 2023
16
4
OpenCore + Xubuntu/grab(to boot 32bit kernel version of macOS10.6) + macOS 10.6 + ZDNet Clock to the resque.
 
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friendofthai

macrumors newbie
Aug 13, 2023
16
4
Hi guys! Have you tries this?


An overclocking tool for mac pro 1.1, 2.1 and 3.1. Compatible with any macOS version including the latest ones.
I have tested on Leopard and Monterey. It easily overclocked my mac from FSB=400 to FSB 455.
 
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