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post #1101 of 1336
Look here for a laugh. I bid $.99 and waited on the Phoenix to outbid me, but it never happened. He most fear the gods to. Well, I don't

http://www.overclock.net/nvidia/6786...-must-see.html
    
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post #1102 of 1336
sweet, seems a lot easier to work out which ic it is than graphics cards, will have a look at the datasheet now and see what i can work out, if anything :-P

if needed pics will follow later


edit: heres what i found, in the link page 3 is the list of pins and what they do

http://tinyurl.com/yegcrmy


looks like what we/i need? now, i have looked at a few pins that im guessing may interest me, they would be: but i might be wrong

FBRTN (Pin 7)
VCORE differential sense return.

VOSS (Pin 14)
VCORE initial value offset. Connect this pin to GND with a
resistor to set the offset value.

IMAX (Pin 15)
Over-Current protection set.

VID4 (Pin 1), VID3 (Pin 2), VID2 (Pin 3), VID1 (Pin 4),
VID0 (Pin 5)

DAC voltage identification inputs for K8. These pins are
internally pulled to 2.2V if left open.


now from here im not 100% sure, would FBRTN be the one i would be using for the vcore mod? or VOSS? or other


EDIT2: and there are vid pins and vid tables, im nto 100% sure, but maybe these could be connected up to a dip switch type thing? or will that adjust default voltage, and i could additionally use a VR to another pin?


so here is my guess so far, think ive worked out vcore mod, with very limited knowledge of mods, so its quite possible its all wrong, but im just gonna keep trying to work it out myself until someone else can chip in :-):

trying to work out other mods now, im not too sure what im looking for, but its never too late(or early) to learn, so will have a look around and see if i can work anything out

The pin FB would be the Vcore mod, connect it to ground and lower resistance yea? also found this:
http://www.overclock.net/motherboard...sus-m2n-e.html

and it looks like the m2n-e sli uses the same ic, therefore the same vcore mod

not too sure about OCP/VDROOP or anything like that
Edited by 1156 - 3/4/10 at 1:07am
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post #1103 of 1336
Quote:
Originally Posted by PizzaMan View Post
Look here for a laugh. I bid $.99 and waited on the Phoenix to outbid me, but it never happened. He most fear the gods to. Well, I don't

http://www.overclock.net/nvidia/6786...-must-see.html
You bought the jesus card, I was wondering if it would be resurrected after seeing that thread. At least it's chances are better with you.
    
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post #1104 of 1336
@ 1156.. FBRTN = Ground... the Mod you posted looks correct... you should be able to trace the pin to a resistor for penciling if you dont want to solder.. As for VOSS- find the pin..measure the resistance to ground... [r*20] = VR size...or again, trace it to a resistor and pencil to change.

*vdroop and vcore typically always go through a resistor for mobo IC mods... making penciling a qwk option to solder if your in a fix.
post #1105 of 1336
What am I looking for when testing continuity between the points pizza? I am clueless at this... OHMs from resistor to resistor finding the largest resistance or just taking notes?

Buddies car still dangling? Man i would crap my pants
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post #1106 of 1336
You set your DMM to the continuity setting which looks like a little speaker put the (+) on FB or whatever and (-) on anything that is connected to the path you are tracing then it will beep or say short on the LCD. If it reads open or you hear no beep then you dont have continuity and you are on the wrong path
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post #1107 of 1336
Quote:
Originally Posted by el gappo View Post
What am I looking for when testing continuity between the points pizza? I am clueless at this... OHMs from resistor to resistor finding the largest resistance or just taking notes?

Buddies car still dangling? Man i would crap my pants
lol, he had to pay $150 for a monster truck tow truck to get it on the road. Took all of 3 mins with a heavy vehicle and a wench.

Quote:
Originally Posted by Voltage_Drop View Post
You set your DMM to the continuity setting which looks like a little speaker put the (+) on FB or whatever and (-) on anything that is connected to the path you are tracing then it will beep or say short on the LCD. If it reads open or you hear no beep then you dont have continuity and you are on the wrong path
^^this.
    
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post #1108 of 1336
Quote:
Originally Posted by CL3P20 View Post
@ 1156.. FBRTN = Ground... the Mod you posted looks correct... you should be able to trace the pin to a resistor for penciling if you dont want to solder.. As for VOSS- find the pin..measure the resistance to ground... [r*20] = VR size...or again, trace it to a resistor and pencil to change.

*vdroop and vcore typically always go through a resistor for mobo IC mods... making penciling a qwk option to solder if your in a fix.
yea, so i dont need to use fbrtn then right?

will measure resistance between gnd and fb now, and will do the same for voss, what does VOSS do? vcore offset, but whats that?



EDIT: 1.527 kohm between fb and gnd, 1.505 kohm between VOSS and gnd, so 1.5*20=30k, closest i can source easily is a 50k, which will do, might pick it up and do the vcore mod, still dont know what voss is though, but will pick up a few extra VRs anyway
Edited by 1156 - 3/4/10 at 9:10pm
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post #1109 of 1336
VOSS = vdroop mod
FB = vcore mod
post #1110 of 1336
awesome, well they both will be needing 50k VRs then

now ive just been poking around with a DMM onto those random things that i should know what they are but i dont, i have attached a pic of what i mean, and i have been getting 1.455 volts from a few of them, and in bios, under hardware monitor, its showing cpu vcore as ~1.440v, is that close enough? would that be my measure point? i have hear people saying the bios monitor is usually a bit off?

and another thing, i have been looking at existing options in bios, there is no vcore adjustment, and the FSB only goes from 200(default) to 240
anyway to bypass the fsb limit? bios mod or something?

thanks again
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