My blackbook's temperature-sensores are gone?!

i got a blackbook .. the 2nd mainboar, and a new heatsink .. since then, my random shutdown is gone .. lucky me.
but now .. suddenly one morning .. it seems that the CPU-temperature-sensores are gone.
core2temp, istat isn't longer displaying the temperature .. temperaturmonitor is telling me: cpu1, cpu2 - the sensores aren't connected. but the HD-sensore is displaying the temperature.
what's going on???

hey kjk!
yes i uninstalled/reinstalled several times .. i got two other apps/widgets which don't display the temp anymore too .. core2temp and istatpro .. i uninstalled/reinstalled these too .. i also repaired permissons and reset pram .. no effect!
perhaps my service-point damaged something? because of opening my book several times to chance the mainboard and later to chance the heatsink?
next week i get a new bottom-case for my blackbook .. because the service-point have scratched it when they opened my blackbook .. i hope they haven't damaged more than this!!
i am frustrated .. first the internal HD was damaged, i got a new one .. then random shutdown, i got a new mainboard, no effect, so i got a new heatsink .. damaged the bottom-case, so i'll get a new one .. and now this. i got my blackbook now for 4 months .. 1 month out of this 4 it was in repair.
blackbook Mac OS X (10.4.6) blackbook 2 GB ram 100 GB HD, blackpod 30 GB, universal dock, 3x airport express

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Additional Information
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Recently, I was given an old Mac g4 15" Powerbook that the owner no longer wanted. This is the first Mac I have owned as well as the first laptop. It worked fine for me for several weeks, and I got a new battery and upgraded the RAM. Then it started putting itself to sleep seemingly randomly, while I was in the middle of using it. It's fine for a little while upon turning on, and then may start to do this every minute. I changed the battery and memory back to the original pieces, the problem persists. The last time, it would not wake up at all. I finally took out the battery and power cord and held down the power button and restarted it.
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Hello Kate,
The track-pad heat sensor is +*one of the causes*+ of narcoleptic powerbooks, but from my experience it is more usually related to a faulty keyboard. Sticky or bent keys, dirt, soda, faulty light sensor are more likely the cause. It is highly unlikely anything has become lose inside the machine as all factory fitted screws are sealed with a lock-tight adhesive or equivalent. Try turning off the illuminated keyboard (F8) and see if it persists. Opening the machine is not a bad idea although, you will find very little in the way of visual determiners. Open it up and give it a good clean out. A small soft paint brush and a can of compressed air will do the job. Just be careful to blow the garbage out and not deeper into the machine.
A suggestion to pin-pointing the problem: Can you hook it up to an external display, keyboard and mouse? If so, start the computer, close the lid and wake it with the external mouse. See if the problem persists. If it does, at least you know the track pad sensor is fine and it must be related to the keyboard or a general overheating issue, which may be something as simple as a faulty stick of RAM.

LM92 I2C temperature sensor with NI-8451

Hello !
I try to communicate with a LM92 temperature sensor via the NI USB-8451 by I²C protocol. I have an issue with the addressing because the 7 bits sensor address is 1001011 (A1 and A0 set to 1) but the LM92 is working in little endian (LSB first) and Labview adds the R/W bit at the end of the address so the complete frame sent to the LM92 is 1001011R/W.
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Solved!
Go to Solution.
Attachments:
LM92CIM.pdf ‏773 KB
Temperature read.vi ‏17 KB

Sanguigui wrote:
Hello !
I try to communicate with a LM92 temperature sensor via the NI USB-8451 by I²C protocol. I have an issue with the addressing because the 7 bits sensor address is 1001011 (A1 and A0 set to 1) but the LM92 is working in little endian (LSB first) and Labview adds the R/W bit at the end of the address so the complete frame sent to the LM92 is 1001011R/W.
I'm trying to find a solution to invert the complete frame before seending it in order to communicate with the LM92.
Labview returns the error -301742 because the address is not the wright one and i can't find how to send the adress in little endian.
I just need to read the temperature register of the sensor so i don't need to write anything in it.
Does anyone have an answer ?
I do not have the USB-8451 to check this myself, but based off of this document: http://www.ni.com/white-paper/5767/en/ I would guess you should be looking into these two VIs:
Advanced LabVIEW API for Device Addressing
Use the Script Address + Write or + Read Functions after a Script Issue Start function to program the device address.
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Hello Everyone,
Problem description:
I have noticed that temperature sensor indicator stops updating when I plug in VGA cable to my laptop (TV and monitor checked)
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bvogts wrote:
Hi all—
During an attempt to upgrade the hard drive in an early 2009 Mac Mini, I accidentally severed the connection between the hard drive temperature sensor and the interconnect board. I've confirmed with a friend knowledgable in this area that there is no reasonable way to solder it back on or otherwise fix it as it currently is.
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bvogts wrote:
From what I can tell, I can either use a software hack to override the Mac Mini's fan speed, which I would prefer not to do, or I can have it replaced by a professional [I don't feel comfortable making such an in-depth repair on my own, especially since what should have been a simple drive swap has rendered the computer unusable, unless one can tolerate it sounding like a hair dryer].
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bvogts wrote:
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Please help me, how to configure temperature sensor on sunfire v440?
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user989408 wrote:
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Please help me, how to configure temperature sensor on sunfire v440?
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Solved!
Go to Solution.
Attachments:
CT-Test4.vi ‏19 KB
waveform.jpg ‏203 KB

Hello Ravens,
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With Visa Clear.png ‏204 KB
Without VISA CLR.png ‏204 KB

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Go to Solution.

Hi elahetal. The LV vs. LV RT decision really depends on what your timing requirements are.
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My blackbook's temperature-sensores are gone?!

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