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Making Temp Probe accrate?

post #1 of 5
Thread Starter 
lets say i want to add a temp probe on my memory card. best thing to do is to stick it in between the heat spreader or just tape it down?

i know its not very accurate unless u drill and stick it in a hole with thermal compound...
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post #2 of 5
memory card? i assume you mean memory sticks? if so then taping it would be fine as long as you know it won't be very accurate.
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post #3 of 5
Depending on the type of heat spreader of your RAM, you might be able to stick the sensor between the RAM module and the heat spreader via an existing opening (pics 1 and 2 and 3). But this involves a risk as you have to prying the heat spreader away from the module in order to get inside.

If not, just tape it outside on the heat spreader surface.



Edited by windfire - 4/8/11 at 8:05am
post #4 of 5
Thread Starter 
Quote:
Originally Posted by windfire View Post
Depending on the type of heat spreader of your RAM, you might be able to stick the sensor between the RAM module and the heat spreader via an existing opening (pics 1 and 2 and 3). But this involves a risk as you have to prying the heat spreader away from the module in order to get inside.

If not, just tape it outside on the heat spreader surface.
thanks ur post is perfect.

also wont it be better if u tape the probe on to the memory chip no the pcb?
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post #5 of 5
Quote:
Originally Posted by Coolwaters View Post
thanks ur post is perfect.

also wont it be better if u tape the probe on to the memory chip no the pcb?
Yes, it will be better in the sense of temp measurement only.

There is no needle with 2 sharp ends.

Putting the sensor directly on the memory chip will bring a more accurate measurement. However, you need to consider:-

a. The sensor is a little sensitive device (as I found out by experience). 'Sensitive' in the sense that it can be damaged easily. Putting it between the memory chip and the heat spreader (with a thin thermal pad, of course) might squeeze it just enough to make it 'died'.

b. Though the sensor itself is fairly conductive, thermally speaking, putting it between a memory chip and then the thin thermal pad and then the heat spreader will just introduce one more layer for the heat to go through. This effect might be small but you have to choose between obtaining a little bit more accurate reading or a little bit more ineffective heat transfer.
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