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Need some vdroop assistance (L6740L) - Page 3

post #21 of 31
Thread Starter 
Couldn't get it to short with my pencil so I attached a couple wires.

Shorting 4 and 5 has no effect of vdroop.
    
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post #22 of 31
Tone these and see if they connected to the pins, the FB is most certainly connected to the red resistor [think we both know that already wink.gif] ..I am thinking the other is the droop resistor..I am not convinced this circuit is using droop in the same fashion though..the datasheet says it can be used strictly as a current source indicator for OCP info to the circuit. redface.gif

[ATTACH]194541[/ATTACH]

*see if pin3 is connected to ground or not please..this can boost output with additional 'offset'. Was looking at FqSw'ing mod too..may be tangible for those thubans sapping the life out of the power phases..just a though.
post #23 of 31
Thread Starter 
CL, look at my pics again. FB and droop are on the 2nd pic. FB= 4.3K, droop = 3.3k.

194287d1297017561-need-some-vdroop-assistance-l6740l-pizza_help2.jpg

194286d1297017561-need-some-vdroop-assistance-l6740l-pizza_help.jpg

brb, shutting down to test pin 3 to ground.



EDIT: Pin 3 is the 64K to ground. It's in the pic to.
    
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post #24 of 31
hmm.. im impaired at the moment..those are nice pics drunken.gif

..so i would pencil a LOT and standby for results thumb.gif
post #25 of 31
Thread Starter 
I'm in no real hurry. wink.gif
    
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post #26 of 31
i am still coherent enough to know that if you penciled droop down and had no affect, then droop is being used only for monitoring purposes..

I'll look at this again later with you.
post #27 of 31
Any update on this or some other way to halt the droop? as Im new to modding but can follow pics and directions rather well lol.
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post #28 of 31
Thread Starter 
I gave up on this one. frown.gif
    
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post #29 of 31
LOL darn well alright then I guess us m4n98td lovers will just have to make do. Thanks for the input tho
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post #30 of 31
Vdroop isn't just limited to the M4N98TD EVO, my M4A87TD EVO is rather horrid with it. Setting my Vcore to 1.5, I get fluctuations from 1.25-1.46, never anymore than 1.46 though. Really annoying when you seem to have a solid overclock, runs great for about a hr, then BSOD. The other day I actually ran Prime95 for 45 mins, no problems. Stopped the workers and clicked to close, and it bluescreens. It's kindda like it's fine under load, but once you take the load off, the voltage spikes then drops, then spikes back up. This is on Manual voltage settings in BIOS, not intervals.
    
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Western Digital Caviar Black 750GB SATA 6GBPS Evercool Aluminum 120MM Blue LED case fan 3x NZXT 120MM Blue LED case fan AMD FX Liquid Cooler 
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Windows 10 Professional HP 19" 16X10 w1907 Rebranded HP Bluebird PS/2 Multimedia Slim keyboard  Apevia 750w 
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