3,1 cMP Overclock (3.4 GHz)

[UCDHIUS]

https://valid.x86.fr/llbs5h 3412 MHz (Its a verified CPU-Z link, click on it)

Cinebench

For some reason Geek bench didn't want to load the web pages (server issues?) but i'm pretty sure it uploaded the runs to the GB servers.

I know it can go further also (There is a 3,1 cMP on YT running at 3.6 GHz)

 

[LightBulbFun]

Overclocked with the OS X utility and warm rebooted into windows or did you use SetFSB in windows and attack the clock gen directly from windows?

I did the latter when I overclocked my MP2,1 in windows a few years back http://valid.x86.fr/db35bu

for a while I was in the top 15 highest overclocked X5355s

May I recommend grabbing some 1333Mhz Xeons and BSEL+VID modding em for maximum overclock?

I sourced some X5350s for this reason to try and make a 3.33Ghz MP2,1

 

[UCDHIUS]

Overclocked with the OS X utility and warm rebooted into windows or did you use SetFSB in windows and attack the clock gen directly from windows?

I did the latter when I overclocked my MP2,1 in windows a few years back http://valid.x86.fr/db35bu

for a while I was in the top 15 highest overclocked X5355s

May I recommend grabbing some 1333Mhz Xeons and BSEL+VID modding em for maximum overclock?

I sourced some X5350s for this reason to try and make a 3.33Ghz MP2,1

Attack the clock gen, ill need to get another SSD for MacOS. If i'm not mistaken ill stick as long as the machine isn't shut down (Switching between OS'es?)

 

[LightBulbFun]

Attack the clock gen, ill need to get another SSD for MacOS. If i'm not mistaken ill stick as long as the machine isn't shut down (Switching between OS'es?)

I know this is the case for the OS X app I dont know about setFSB I guess the only way to find out is to set a clock speed reboot and see if it stuck?

(I know on the MP1,1/2,1 it goes away even in OS X when ya reboot)

 

[alexffff]

Overclocked with the OS X utility and warm rebooted into windows or did you use SetFSB in windows and attack the clock gen directly from windows?

I did the latter when I overclocked my MP2,1 in windows a few years back http://valid.x86.fr/db35bu

for a while I was in the top 15 highest overclocked X5355s

May I recommend grabbing some 1333Mhz Xeons and BSEL+VID modding em for maximum overclock?

I sourced some X5350s for this reason to try and make a 3.33Ghz MP2,1

what utility do you use?

 

[LightBulbFun]

SetFSB for windows

 

[Ludacrisvp]

the 3,1 doesn't lose an overclock during reboot, full shutdown is required to lose the overclock.
In fact, after you overclock you want to reboot so that you fix the time clock issues as the OS clock is sped up in accordance to the changed FSB which is what makes a lot of benchmarks not reflect a performance boost due to elapsed time calculations.

 

[friendofthai]

Manual overclocking is very inconvenient for everyday use. I would recommend using automatic overclocking with shell script followed by automatic reboot to the default OpenCore partition with your default OS.

Use the attached MacProAutoOverclock script and follow the instruction in the README file for it.

On my Mac Pro 3.1 I see only black screen when booting to Leopard with GeForce 710. But this does not prevent the system from booting and the script from doing its job. To see how the script does its job I either insert the original Mac Pro GPU (without removing my GeForce 710) or connecting the machine via LAN cable and remote desktop (Screen share button in finder). Cannot connect via WiFi because wifi is not working under Leopard - I suggest OpenCore boot loader is the main reason.

I also tried to use Snow Leopard instead of Leopard for it. Snow Leopard is much better because I see everything on screen - no black screens. But looks like it is impossible to boot into 32 bit kernel at least with OpenCore. I tried adding a 32bit Kext to /System/Library/Extensions , pressing 3+2, adding arch=i386 to the boot plist - nothing helped.

 

[Dayo]

looks like it is impossible to boot into 32 bit kernel at least with OpenCore.

I can boot into Snow Leopard directly or via OpenCore and don't think it is 32bit but might wrong.
I am posting this while booted into Tiger, 32bit kernel, with an appropriately set OpenCore config file.

If you use MyBootMgr to set things up, link in my signature, you will definitely be to load Tiger and Snow Leopard, whatever kernel they use, via RefindPlus and/or OpenCore without needing to add any kexts etc.

Note that you need to limit your RAM to 32GB for 32bit kernel. You can add maxmem=32768 as a boot arg or better, add to the boot.plist file.

 

[friendofthai]

Can now boot into 32-bit Snow leopard and use ZDNet OC utility
Xubuntu and Grub boot loader will boot macOS 10.6 into 32-bit mode.