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post #1331 of 1336
I put 4 pin Enzotech copper heatsinks on all the mosfets, a copper northbridge cooler, and heatsinked a couple other chips as well. I'm now able to get over 1.5V. so my voltage problem seems to be solved.
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post #1332 of 1336
My newest project: Gigabyte EP45-UD3R




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post #1333 of 1336
Gigabyte GTX260 OC 216 Core

Vcore (Yellow wire) = 100K pot to ground
OVP (White and green wire) = 10K pot
Vcore measure = Red wire





Edited by mllrkllr88 - 10/1/15 at 8:54am
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post #1334 of 1336
Quote:
Originally Posted by mllrkllr88 View Post
 
Quote:
Originally Posted by CL3P20 View Post

being that its a X48.. i would stare & compare to other brand designs.. the IC is a rebrand.. so it likely is on another X48 board with similar layout and OEM #'s printed on it (compare to Asus X48 series)
+1 Thanks for the advise. I found out that its a VT1115MF chip (I was looking at the wrong part I think originally), and I found part of a datasheet. I am guessing that they don't use the same naming convention as other chip manufacturers because I don't see FB or IMON.
Here is the datasheet snip I found, can anyone help?

 

yuck - for that guy.. i would tone out the VID chart and make some moves there for volt increase... that way OCP/OVP gets "updated" through the IC as well...other wise you may have issues with a higher voltage triggering protections internally.

 

Quote:
Originally Posted by mllrkllr88 View Post
 
Quote:
Originally Posted by CL3P20 View Post


pin for vcore = 'FB' pin 16
pin for OCP = 'IMON' pin 10

**make sure your mod point for vcore has both continuity to the FB pin and ground.
I never did properly thank you for helping me with this mod, so thank you very much!!! Here are the pictures

 

Clean work man. +Rep'd :)

post #1335 of 1336
This may not be a "Volt mod" in the normal sense. But I did get more voltage from it, and a much better overclock.
When I started software overclcocking my Dell BTX I soon ran into a 1.4500V. limit adjusting voltage under load (Prime95). This got me 3.2Ghz. on a QX6700.
People would comment that my voltages seemed high, but my temp. was OK so I just continued on. I heatsinked the MB and got to 1.5250V limit. This got me to 3.45Ghz @1.4625V. on a poor example of a QX6800. At 3.72Ghz. I noticed the system crashed when the fan would speed up.
In BTX one fan cools everything so it's nromal to have a 1.2-1.6A. Delta fan running off of the MB. I found out that a delta twin motor fan would fit in my computer so I got one.It draws 3.4A. Powering it off the MB wasn't an option.
When I installed the new fan powered off of a Molex ( and a better QX6800) everything changed. at 3.45Ghz. I only needed 1.3875V. under load. Down from 1.4625. I also had 1.5875V. available. At 3.72Ghz the system no longer crashed due to fan load. With fan at 100% I even got a validation at 3.99Ghz.@ 1.5875V.
3.72Ghz. is now my normal Performance setting @ 1.5375V. idle temp. is way down now also.

Just as a warning to anyone who wants to do this it does throw a fan fail error at boot. I've tried a few things to fix it but haven't found a cure. that doesn't involve placing a 1.2A. load back on the MB. I'm using sleep /suspend mode and ignoring it. On my Dell the error must be cleared manually from SYSLOG in BIOS.
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post #1336 of 1336
Nice p45 love the voltage lcd and knob for vr. Very nice setup
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