How to Find Your Mac’s Exact CPU Model. Want news and tips from TekRevue delivered directly to your inbox? Sign up for the TekRevue Weekly Digest using the box below.

You mean like the Isuzu engine in a Chevy? Or a Ford engine in a Mazda and a Mazda engine in a ford? Or maybe a Volkswagen plant in an Audi? Cracking the rotator cuff conundrum. Chevy and Oldsmobile have been the same company for many many years, and most Chevy/Oldsmobile vehicles - heck, GM vehicles, share parts and factories. Remember the Chevy Nova, Olsmobile Omega, and Pontiac [can't remember the name] - essentially the exact same car with slight grill and taillight/bumper styles. How about the Ford Taurus and the Mercury Sable? Or the Chevy truck / GMC truck?

To better fit THIS situation, it would have to be like Chevy selling you a 300HP motor in a car, and listing it as 300HP, and putting all of the '300 HP' badges on the car and engine compartment - but only actually giving you a 250HP engine. Or maybe giving you an engine that can be 300HP but most of the time runs at 200HP. Something like that. I guess it could be like a car with a governor. What the!@#$?

Ok, so I typed it in, and I get this back. $ sysctl hw.cpufrequency hw.cpufrequency: 533333332I thought perhaps I had the Energy Saver options set wrong. Nope, my 867Mhz 12' Powerbook is plugged in and set for 'Highest' processor performance. Then it occurred to me, maybe you need to run it as root.

A 5 or 10 MHz input may be used to reference the CSD-5300 to a more stable cesium or rubidium atomic standard. Features: External battery input for total power back-up; Additional Information leitch_csd-5300.pdf ADA499239.pdf Get Adobe PDF Reader. Leitch Csd 5300 User Manual This manual is a supplement to the “Functional Description & Specifications” of decoded out of the binary groups (user bits) of the reference LTC. Our traditional Master Clock, the CSD-5300 Master Clock System Driver, provides access to stable, reliable, and UTC-traceable real time. A Master for Your Master To address the Master Clock aspect, Leitch offers the world-renowned CSD-5300 Master Clock System Driver, which is used by many of the world's major timekeeping organizations. Of time transfer using Leitch CSD-5300 units as master and slave clocks. The capabilities of the full system, and the Leitch CSD 5300 units. LIOS V8.2 User Manual – Administrator Issue 35 Table of Contents 0 GENERAL INFORMATION.7 0.1 References.7. Leitch csd 5300 manual transfer station.

So it tried a Sudo as well. Same response. So why is it telling me its running at 533Mhz? This is unacceptable! Something's got to be wrong here. Either it's my Powerbook, or this command.

Here's my question than, if it doesn't display the correct speed right now, does that mean its actually running slower than its supposed to? And resetting the PMU (I assume you mean Power Management Unit) should kick it back into gear and run your CPU at full speed again? So supposedly, many of us are running our computers had drastically slower speeds. Or, is sysctl just reading it wrong all the time.

I'm very curious to know the answer to this one. In the mean time I'm going to reset my PMU and see if that fixes it.

Systcl reports the wrong info. You can see how it does this by typing sysctl -ain your Terminal. In the results you will notice that the numbers hw.cpufrequency, hw.cpufrequency_min, and hw.cpufrequency_max will be reported as all the same.

I actually wrote a little Applescript called CPUfrequency that used systcl to 'diagnose' whether the PMU needed to be reset. Shortly after releasing it to the world, I was lambasted with emails and comments stating that systcl is faulty and therefore my scripts don't really work. If Apple ever fixes sysctl, then the scripts will work and can be found. If you look through the archives you will find more detailed discussion of why it does not work. Is it possible that the 'speed' being reported by the System Profiler is not a MEASURED speed, but rather a speed that is being returned based on a gestalt ID. Eg: maybe when the machine runs tha System Profiler, rather than actually measuring the speed, it just rely's on an Identification stored on the logic board. I say this because i do NOT believe that the System Profiler will report anything less than your machine's TOP-RATED speed.if you have a Powerbook that does cpu speed-switching while on-battery, then try this.Plug the machine into ot's Power Adapter and set the machine to MAXIMUM performance in the Energy Setting Pref Pane.

(This should be the MAX cpu speed for your machine). It reports your machine's Max Speed (the speed your Model was NAMED as)Now take your machine OFF wall-power by removing it from the Power Adapter and set your Energy setting to Low Power (if you have a machine that is capable of doing cpu speed-reduction it will drop to the lower cpu speed). Then run System Profiler again.I guarantee that your machine STILL reports the HIGHEST speed. Because it is NOT measuring it.

It is reporting the speed NAMED in your Powerbook's Model-Name. Eg: an 867MHz TiBook is ALWAYS going to say 867MHZ even though it may be running at 667MHz. Yeah, but after a while it goes back to being 677 Mhz. Check and see!

I don't buy what Apple is trying to tell us here.' Don't pay attention to the clock speed returned in the terminal.' What are they hiding from us. Why is my 800 MHz PowerBook G4 really returning 677 MHz. Maybe they just want to avoid a class action? I want this problem resolved Now! Proof, not chatter!