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ECS 8400 512mb low profile vmod - Page 2

post #11 of 58
Thread Starter 
ok so done some tests
i put a wire on each positive side of the caps.. ( that were 6.3v or under )
and tested each one writing each one down.



the came out with those numbers ^

so im guessing that the 1.14v is the core volts, and the 1.82v is the mem volts?
(( will shorten wires on molex when know 100% itll go their and place it somewhere ))
atm its sitting here like \\/ that, is that alright?



Whats next?

Feedback to VR ( and ground ) ?
Edited by Liighthead - 3/23/11 at 5:42am
    
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post #12 of 58
Quote:
Originally Posted by Liighthead View Post
so im guessing that the 1.14v is the core volts, and the 1.82v is the mem volts?
Exactly
Quote:
Originally Posted by Liighthead View Post
Feedback to VR ( and ground ) ?
You can use Pin 3 from RT9218 as ground point, thats the one opposite of FB which is Pin 12.
You always start counting the pins at the lower left side(this also marked by a dot/arrow) and count counterclockwise from there.
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post #13 of 58
Thread Starter 
the little dot is on the top left.
if you ly the card on its back.
or bottom left.

unless you mean so the chip sits like
|||||||
-------

-------
|||||||



Bottom of card is down this way. \\/
    
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post #14 of 58
It dosent matter where the dot is it represents pin 1 not top or bottom, so start counting there pin 12 is the feedback, or third pin down on the right side. Thanks for stepping in malk, you are in much better hands now lighthead....looks good so far.
Edited by reggiesanchez - 3/23/11 at 1:53pm
    
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post #15 of 58
Quote:
Originally Posted by Liighthead View Post
the little dot is on the top left.
if you ly the card on its back.
or bottom left.

unless you mean so the chip sits like
|||||||
-------

-------
|||||||
It's quite simple, if you can read the writings regulary it's bottom left.
But reggie is right, there are also ICs where it's top left f.e. so all that matters is:
Dot(arrow on the PCB) = Pin 1
count counterclockwise
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post #16 of 58
Thread Starter 
so this would be pin 12?

if the top right was 1. feedback 3...
but thats going clockwise.




BTW: thanks to both of you
    
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post #17 of 58
Read again my previous post... FB Pin is Pin 12, Ground is Pin 3
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post #18 of 58
no the dot on the ic is one this might clear things up.
thats the ic
    
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post #19 of 58
Thread Starter 
ohhhh mybad

so ground on 3 feedback on 12?
sorry in class, or would of double checked ect.

should be able todo some work on it tonight
    
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post #20 of 58
Thread Starter 
so just double cheaking before solder it on.

pin 3 to ground on VR
pin 12 to positive on VR?
    
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