Warning: If you are
here then you agree that I cannot be held at
fault should you damage your hardware. This
guide has been tested by myself and is known to
work.
Ok...... Now on with the info! This is a mod
guide to the Semtech SC11654 & SC1165 DC/DC
Converter that is used on the Trigem Florida
C/TG/TGA motherboards...however the info here
should work no matter what motherboard you have
as long as you have the SC1164/SC1165 DC/DC
Converter. This is so you can manually set the
CPU core voltage so that you can push the cpu a
little farther...I will not explain how raising
the voltage will help with stability/overclockablity
of a CPU due to there are many people who have
covered this topic already so it would be easier
for both you and me if you just go to Google and
search for an article that covers this.
This is design to be used with the ICST 9148-08
overclock found on the Trigem Florida C/TG/TGA
motherboard.
Tools Needed:
1x Soldering Iron
1x New very small/fine tipped solder tip
1x Some solder lead
1x Something small enough to pull on the small
pin of a SMD chip.
Small wires or something to connect pins.
Some free time.
Before doing this you should remove the
motherboard from the case and remove everything
from the motherboard (such as cpu and ram and
such) just to be safe and for extra free space.
Make sure you're discharged of any static
electricity and wear an anti-static wrist strap.
It should be noted I have tested this on a
Florida TG Rev. C that has the Semtech SC1164 -
DC/DC Converter. If you do this and also find it
to work please email me at:
enigmadeadsouls at yahoo dot com (replace "at"
with "@" and "dot" with "." I do that so the
spam bots do not pick up my email address).
Send me pictures (keep them small) of your
modded SC1164 & SC1165 DC/DC Converter and give
me your website info if you wish for me to post
it at the bottom of this page.
Here are some Images of the supported voltages
of the HIP6021 DC/DC Converter.

As you can see
it supports core voltages of 1.3v to 3.5v.
Note: the one listed as all 1's with the voltage
of 0 does just that. It has an output of 0
volts.
Here is a pin-out image of the SC1164 & SC1165
DC/DC Converter.

Just your standard 28pin SOIC.
Ok I'm going to
give some examples of two mods... 2.10v and
2.50v.. from these I would expect you to get the
idea and figure out how to set other voltages. I
would recommend disconnecting all the "VIDx"
pins (pins 18-22) from the motherboard and
connecting them to wires with a jumpering design
at the end of the wire then a connection to
ground.. that way to quickly set 0 you would
just pop on a jumper and to set 1 you would just
remove the jumper. It would look sort of
something like this...

Here's what
2.10v would look like.

As you can see
Pins 18,19,20,21/VID4,3,2,1 are open (1) while
Pin 22/VID0 are connected to Pin 1/AGND (Ground)
making them a closed (0).
Here's what 2.50v would look like.

As you can see
Pins 18,19,21/VID4,3,1 are open (1) while Pin
20,22/VID2,0 are connected to Pin 1/AGND
(Ground) making them a closed (0).
NOTES:: ALWAYS make sure the computer IS OFF
before changing the core voltage. NOT doing so
MAY toggle the PGOOD signal and trigger the
over-voltage protection causing the machine to
turn off.
Written at: 17:21 PM EST - Revision 0
Written on: Monday, January 06, 2003 - Revision
0
Written by: Enigma Deadsouls
Website: http://www.geocities.com/enigmadeadsouls
Names/Info from people who have emailed me their
test results:
Tested by Enigma Deadsouls on a Trigem Florida
TG Rev. C and worked.
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