capacitor modification......a little improvement:)

ive been thinking about adding more capacitors on 580m since first saw its layout
stock spcap 2v 330uf*8>>>>poscap 2v 560uf*4(core) 470uf*4(core*2/mem*2)
add poscap 25v 5.6uf*8(mos)





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0.92v



so the voltage is still a bottom neck, having a hard time finding which resistance can rise voltage these days, bcz theres no way measuring working laptop vga with multimeter..........anyone can interpret chil pwm? i tried vrtn tsen but no luck

 

*gasp* Wow, you're brave. Overclocking is one thing, but hardware modification of your video card?!

 

so just by adding bigger uf capacitors let you overclock higher ?
or adding the ones was missing is how you increase the uf ?

I saw what you did You add 8 330uf and replace the 4 big ones on the top with 560uf and 4 close to the memory with 470uf what was the stock uf on the stock ones ?

 

look like adding the missing ones.

*<< goes digging in drawer to see if husband has the right caps*

 

Seconding the brave comment! Impressive improvements though.

 

WOW. Very nice indeed. Those are almost the scores my stock 560ti 2gb gets... Which pulls almost twice the wattage....

 

Now that's modding I say! Nice gob, DG! I'm sure you can further improve it by adding the right caps.
+1 rep

 

Looks like 6970m can take more capacitors too.

 

Those should be bypass capacitors to the power section of the board right?

 

yes add more capacitance get more stable voltage, positive impact on ocing, but wont increse total power gpu get though

this cards mosfet circuit already uses mlcc(better than spcap/poscap)
but dont know their capacitance

yes, clevo cost down to poscap, see those anode marks?

 

How hard is to do the mod? Do u have to solder each capacitor independantly? What's the risk of breaking them during detach from the board? Cool job, BTW, as usual)

http://www.youtube.com/watch?v=YCSNWi3UHf4 for general understanding)

any links to where you purchased them, DGDXGDG?

 

wow first the awesome undervolting and now this.
I love this forum

 

@DG your English is better now remove that from your sig because I clearly understand what you said DELL use mlcc capacitors better than spcap/poscap Clevo use to save pennies but what I don't understand is why all the video cards are missing capacitors that is to save money too ?

Any way you know some stuff and I give you credit for that because you are enough brave to solder your $800 GPU

 

it takes some skill to solder surface-mount parts.

 

i find those caps on auction and honesty i gave up solder it myself.......send to the guy who have hot air guns

missing capacitors/resistors mostly is for saving $$
other i know is to make some different, remember years ago flashing a gaming card bios to turn it to a professional card you need to add some c/r

 

Bypass capacitors reduce voltage transients from parasitic inductance (supply and ground path).

AMD uses low parasitic, low ESR capacitors for this on their reference design.
Then the vendors go to make their own, and the execs realize they can have more cuban cigars and ski vacation if they use cheaper and fewer capacitors.

 

Those are all ceramic capacitors already surface mounted. They are not bare pads. Maybe on the underside.

 

You can just use solder paste and reflow the entire card in your toaster oven.

SMD Components self-align in toaster / skillet reflow - YouTube

 

I thought you solder that ... well that guy know what he's doing it looks very professional

is sad how can a company reduce quality to save some pennies I didn't knew that so some cards can't be flashed to Firepro or Quadro if they have missing capacitors-resistors ? is good to now that

 

6970/6990m can change those 470uf 2v too, and clevo oem type can add 25v near mos
all amd's mosfet is sop-8 type mos while nvidia 470/480/485/570/580/3000/4000/5000/5010 use integrate type drmos which is better, so thats why they just use 330uf i think...