Mod Aerogate I so that Red LED is not on at power up

Navid

Diamond Member
Jul 26, 2004
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I did this because I did not like the red LED color and I did not want to have to change the color every time I turned on the PC.

WARNING:
This can damage your product! Proceed at your own risk!
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There is an IC marked U11 on the printed circuit board (at the lower center of the PCB). There are three resistors (0 Ohms) beside it. The resistors are marked R54, R55 and R56.
Every time you press the button, the IC sets the voltage on one of the resistors to 0 and the other two to 5V. That turns on one of the LED colors. When you turn all the colors off, the IC sets all three resistor voltages to 5V.

When R54 is set to 0V, the red LED is on. When R55 is set to 0V, the green LED is on. When R56 is set to 0V, the blue LED is on.

I used a soldering iron and removed the three resistors.

Then, soldered three wires to always force R55 to 0 and R54 and R56 to 5V. This way, it always is green when I turn on the PC. The switch does not do anything anymore and I cannot change the colors. But, that is OK with me.

NOTE:
You have to connect the wires to the side of the resistor foot print that is not connected to the IC U11. Pin 8 of U11 is 0V. Pin 16 is 5V. When you look at the IC with the labels right side up, the pin at the lower left corner is pin 1. You count up counter clockwise.

If you ever want to go back to the original setup, just remove the wires that you added and solder the three shorts (resistors) back in place.
 

ss284

Diamond Member
Oct 9, 1999
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Sounds good. Mine will be arriving soon, I just wanted to clarify that it boots up blue, and cycles to red, green, then off correct?
 

Slickone

Diamond Member
Dec 31, 1999
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Good job, OP. I would have just made one post for both of your mods. But nice work.

For those who don't know, this is only $5.99. Hot deal.
 

Navid

Diamond Member
Jul 26, 2004
5,053
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Originally posted by: Slickone
Good job, OP. I would have just made one post for both of your mods. But nice work.

For those who don't know, this is only $5.99. Hot deal.

I agree. But, the second mod was a much better mod in my opinion. If I had thought about it first, I would never have written the first. After I came up with the second idea, I thought that it was much better and deserved an individual post.
http://forums.anandtech.com/messageview...atid=27&threadid=1630077&enterthread=y

At any rate, I am sorry for wasting the posts. That was not my intention.
 

Zepper

Elite Member
May 1, 2001
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Thanks for the tip, OP.

The price is actually $4.99 now at SVC.com!!! Even better deal...

.bh.