Faulty Power Monitoring Unit?

I updated to 10.4.9 about a week and a half ago. I don't know if that has anything to do with my problem, but before that, I had no issues with my battery.
Recently, I was using my Macbook, running on the battery, and with about 3:30 remaining, it shut off into sleep mode.
I plugged it in and restarted it to find that my battery capacity went from 5200 mAh to about 550. That's TOTAL CAPACITY, not current charge.
So, I called AppleCare, and they told me to reset my PSU and PRAM. Surely enough, I was getting a correct reading for my capacity and charge.
I just charged my laptop before going to bed last night and I let my MacBook sleep while running on battery while I was at school. When I got home to use it, this is what the readings for my power were:
Current Battery Capacity - 6533 mAh
Original Battery Capacity - 5200 mAh
Approx. Time Remaining - 47 hours 49 minutes.
This was about 10 minutes after turning it back on, mind you.
I tried to reset my PSU and PRAM...twice...but to no avail.
Is my Power Monitoring Unit faulty, or am I not reseting it properly?
Help is appreciated.
NOTE: This Power monitoring problem only seems to occur when I let my MacBook sleep for long periods of time (about 10-12 hours). Could that have anything to do with it?
MacBook (White) Mac OS X (10.4.9) 1GB RAM 80 GB HD SuperDrive 2.0GHz Core 2 Duo

I am going into the Apple store tomorrow.
I have done 7 PMU Resets and 5 PRAM resets, all to no avail.
I swear, this battery is faulty. Please post new updates if you can. I may not be able to log on and reply because I'm having connection problems. Post any suggestions you can, other than a PMU or PRAM reset - those HAVE NOT AND WILL NOT WORK.

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Hi,
I'm doing a project on Power Monitoring Unit. Here I measure the line voltage and current and display it in the computer using the NI USB 6008 unit.
So I'm giving two signals corresponds to the line voltage and current. Then use Lab View to calculate the power and power factor.
I bought the USB 6008 unit and finding it difficult connect this hard ware to the Lab View software. I need to use the Lab view, not signal express.
If you guys can give me a solution for this, it's greatly appreciated,
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Milinda

Hi,
There is another problem that came to me when calculating the Power Factor.
NI USB 6008 measures voltage inputs only.
So, when I calculate the power, I have to measure Voltage and the line current.
For the Voltage input signal, I can use a small transformer to step down the Voltage to an acceptable range with the DAQ. (230 V to 6V)
For the Current input signal, 1) I can use a shunt resistor and measure the voltage difference across it and input it to the DAQ
or 2) I can use the small Current Transformer and a burden resistor get a voltage difference across the burden
Resistor and input it to the DAQ.
If i measure the power of a resistive load, Voltage and Current signal will overlap and gives no difference.
If i measure the power of an inductive or capacitive load, there is a lag or lead between Voltage and Current signal.
My question is, when it's an inductive load, which current input method will display the difference between voltage and current signal?
Note: Power Factor - Angle difference between Voltage and current signal.
Cheers,
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Interesting, this "Piggy back power adapter" will allow me to plug the fan into one of the ATA/IDE cables? Or do you mean the extra port on the power supply? (it has one plug for the outlet>G4, then another to support something like a monitor or similar) The G4 has a DVD burner, but no ZIP drive, so this is quite do-able if it uses the ATA power.
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Another question: what tools and supplies will I need? I may need to remove the plastic cover on the back of the G4 - the one that is outside the power supply - as there's a gap between the gray plastic and metal chassis that lets air from outside the machine come in. The screws for this cover use a funky, hexagonal screwdriver. If I need to take this cover off, what kind of screwdriver will I need? Also, should the fan not include screws/etc, what's the best method to attach it? Glue?
Secondly, to cut a hole in the G4, will I need some variety of drill? I don't have one, so i'll have to borrow one... Since there's nothing in the ZIP slot, I can run a cable out through here (assuming it's long enough), and make a new bezel to keep the airflow inside intact.
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Thanks, Grant
Interesting opinion.. and funny too.
On close inpsection of the fron panel you're right the cable is a hard drive cable, and without a number. Whereas the connector for the DVD and Zip drive are numbered P7 and P6.
And in the G4 there is a slot for where this old connector went, but there's nothing to connect, no pins. It's as if this slot was evolutionary rump on its spine end where the tail ended, that the G4 designers left in or else they used left over parts from the G3 to save money.. This early G4, introduced in 1999-2000 is one evolutionary step above the G3 which was discontinued in early 1999. The G4 front panel has a slim grey ribbon cable leading under the chassis directly to the motherboard, along witha thin wire and small pin connector leading from the speaker.
There's nothing like a beakdown to learn how to rebuild your PowerMac. And I think most of the repairs are DIY doable. It just takes a few good screwdrivers, a little know how, some patience and a lot of spare time. All that and the correct replacement parts, if you can find them.
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Hi could someone please help me with modifying the following LabVIEW program:
About the program:
I'm currently building a bike generator that would have the ability to power LEDs (based on whatever power is output). The LEDs would look like it's scrolling. While doing some testing, it appeared that the maximum power obtained while pedalling the bike was about 3 W. Connected to the generator is a serial power monitor called WattsView, which is a circuit that contains a loop that measures amps using the hall effect. This circuit collects data of volts and amps, sends it the software it went with onto the computer, and I am also able to view power (calculated).
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The In Range output will then be connected to the selector terminal of the case structure. So when:
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Thank you for taking the time to look at my post!

I'm still confused on how to obtain power in the correct format.
Below is a screenshot of the entire LabVIEW WattsView Driver (Block Diagram)
Circled in red is the data of volts and amps that is being collected from the WattsView circuit connected to the generator. Double clicking this icon for "4 Mat Data" opens the following Front Panel:
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I copied the Power indicator onto the main LabVIEW Driver Program, and below is how it now looks like:
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Go to Solution.

Welcome to the forum!
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Dear HP Experts,
Good job of obliterataing information on what it does, even a degreed engineer as myself is unable to decide whether to keep enabled or disabled in BIOS!
Can you please tell what it does?
NOT whether I should enable/disable - that I decide myself, just please:
Explain its function. Already read your "Service Manual" - but no word, all it says is setting name "PowerMonitorCirc", but not what it does !

BEFORE YOU SPEAK, GET FACTS Mr. "Professor".
FACTS:
1) My Posting date - was a special "HP Experts Day" when their employees conducted 24-hour session, monitoring Forums & answering as officials, rather than as "user-to-user" forum.
Perhaps you weren't aware 21-22 (?) September was that day.
2) Previously offered answer was a vague finding from another user, which while afraid to appear "pedantic", is not a 100% clear explanation of what Circuit does.
It's true I accept it for now as a somehwhat useful hint, but HP employees did not catch my question and not officially acknowledged that it's time to add info into Service + User's manual(s) [simply tell what this setting does].
E.g. nobody needs an explanation what "Fan Always ON while on AC" setting in BIOS - things like that are selfexplanatory to anyone who's not a moron, BUT:
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I am one of those who is "particular" with his Soft/Firm/Hardware settings, and I like everything be perfect.
That's Engineer in me.
I need to know settings clearly, not some vague suggestion from another user.
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