![]() ![]() ![]() More info and link in the full article here. To go back to your old clock speed, you’ll just need to reboot,” Weintraub reports. Bugs in clock time have been reported but fixes are coming. “Since this is a software overclocking tool, it doesn’t pose too much of a risk, but as always in this arena, proceed with caution and I am not responsible for imploding machines. Thankfully, Mac Pros and Xserves have error correcting RAM which should help with reliability at these higher speeds,” Weintraub reports. “This tool not only increases the processor speed, but it also speeds up the memory and bus speed as well. They use the example of taking a base model Mac Pro running at 2.8 GHz and getting it to run faster than Apple’s top of the line 3.2 GHz machines,” Seth Weintraub reports for Computerworld. According to their website, the tool can currently overclock Mac Pros and Xserves with Intel Xeon processors. One should probably check for parity errors in the system log when using noname RAM, even if the system runs at stock speed.“Earlier today, released a tool that looks very promising in. A user reported RAM errors at 2,86 GHz using noname modules. ![]() Some noname RAM showed up errors at 2,83 GHz. Using Kingston or Transcend RAM the same results could be achived at 3,24 GHz. With pre-installed Apple RAM we were able to run a 2,8 GHz Mac Pro at 3,17 GHz 24 hours under full CPU and memory load without a single parity error, that had to be corrected. If you shutdown your computer and turn it on again later it will always run at stock speed. Also, the kext is not loaded, because it is needed only to change the bus clock. The German edition of ZDNet has posted a utility dubbed ZDNet Clock Tool that allows owners of the Intel-based Mac workstations to push the clock speeds of their Xeon processors significantly. In this case the system time runs at the correct speed and benchmarks report better results, because Mac OS adjusts the system time speed at boot time, but at no time afterwards. If you reboot without turning the system off (shutdown), the Mac Pro keeps the speed you set with ZDNet Clock. After a reboot the kext will never be loaded, until you run ZDNet Clock again. It is dynamically loaded, when you start ZDNet Clock. ZDNet Clock doesn't load a kext at boot time. The current version of the tool works by loading a kernel extension into Mac OS X on boot that forces the clock speeds upwards immediately after the system starts. ![]()
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