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8RDA3+ hot spot

Posted: Mon Nov 17, 2003 12:19 pm
by NascarFool
176ºF on the mosfet chips. Holy cow ! My infrared thermometer doesn't lie. I think I'll make a custom HS and suspend a 40mm fan in front of it. All other chips are 90ºF a or lower.

Posted: Mon Nov 17, 2003 12:54 pm
by dadx2mj
A guy I know from another forum did this to his 8RDA+ I dont think he added any fan tho and I am not sure if it helped him achieve a higher over clock

Image

Posted: Mon Nov 17, 2003 2:04 pm
by NascarFool
Currently I am at 12x200 and stable as hell. I just don't like the high temp. I added a custom HS to my old 8RDA+ and it worked fine. I might just hang a 40mm fan in front of the mosfets until I can make some chip sinks. :)

Posted: Mon Nov 17, 2003 2:53 pm
by Lmandrake
There is an article at http://www.overclockers.com on watercooling mosfets....

Posted: Mon Nov 17, 2003 5:51 pm
by Pugsley
why do people call them MOSFETs? arent they the voltage regulators?

It relates to the technology / process...

Posted: Mon Nov 24, 2003 8:42 pm
by Bigal
MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor.

Definition: It's a Field Effect Transistor in which the conducting channel is insulated from the gate terminal by a layer of oxide. Therefore it does not conduct even if a reverse voltage is applied to the gate. A Field Effect Transistion has a region of donor material with two terminals called the "source" and the "drain", and an adjoining region of acceptor material between, called the "gate". The voltage between the gate and the substrate controls the current flow between source and drain by depleting the donor region of its charge carriers to greater or lesser extent.

There are two kinds of FET's, Junction FETs and MOSFETs.

Because no current (except a minute leakage current) flows through the gate, FETs can be used to make circuits with very low power consumption.

:s cratch :funny :clapper

Posted: Mon Nov 24, 2003 9:00 pm
by Pugsley
did not know that.. but now i do. Thank you!