yeah when i set it at 2.9vdimm it gives me max 3.03.... thats not even worth the normal vdimm mod so i would like to know if the psu must have this brown wire (i have a fortron 350watt) for the 3.3v to vdimm mod to work?
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yeah when i set it at 2.9vdimm it gives me max 3.03.... thats not even worth the normal vdimm mod so i would like to know if the psu must have this brown wire (i have a fortron 350watt) for the 3.3v to vdimm mod to work?
What voltages we use??? My friends is frightened to use high voltages in you NF7-S rev2... What the max voltage you use?
Forgive the electrical newbishness, but what is a sense wire? I want to do the VIO=VDIMM mod myself, but I would like it to work.Quote:
Originally Posted by Melchior
What did you do differently the second time around?
the 3,3V sensewire is the brown wire of the psu.
it checks if 3,3V is stable.
if you put a resistor between this connection, the psu thinks the 3,3V rail is too low and pushes it up.
i reached 3,6V with 400ohm on my 800w wtx@atx server psu.
with a levicom 350w (without 3,3V sensewire) i got no boot.
switched psu to one with sensewire and it worked. so the sense wire is necassary.
putting 3,3V rail up to 3,6V i got 3,5V vdimm.
all depends on ram.
if u got bh5 then u can go up to 3,7V without a problem.
i hope my englisch isn`t too bad :(
I did the vio=vdimm modd yesterday :) works perfectly, even shows the actuall vdimm (3,48V) in bios :D managed some superpi @ 260fsb
sounds nice.
my nf7-s rev 2 even does not boot with 235mhz fsb @ 1,9VDD (nb watercooled)
everything over 210mhz is not primestable.
i don`t like the board ;(
dfi ininity did 244mhz stable @ 1,9VDD
even 260mhz to windows.
I don't know why but before I could get 265fsb superpi stable, not now. Think that it's the bios but not sure. Absolute max that board did was 274fsb. Not for long :P
Have you tried different bioses?
not yet.
got a xtra thread now.
gonna try out different things today...
How high does the VDD booster raise to?Quote:
Originally Posted by Karnivore
VDD booster does nothing. It is said not to hurt anything, but it doesn't help, either.
Anyone have he full 4th methoid pic? The link for it on the other page is dead. :(
Thanks.
Have a Happy New Year everyone! :toast: :banana4:
Could you please make a diagram showing how to do it right cause i have the same problemQuote:
Originally Posted by Melchior
This may sound stupid but what voltage does the board default to with the 3.3v rail mod? (if the rail is at a steady 3.3v, not higher like 3.5-3.6v)
2.7v, but it is still recieving whatever is being supplied by the +3.3v rail.
here is an easier way of doing the mod that will supply better amperage and be easier to solder. All you have to do is scrap away some of the protective material on the bottom of the board below the mosfet where the red lines I have added go to. Two wires is better than one and this attachment location is probably better than the other one too since the power can still be filtered somewhat by the capacitors and such.
So u scrap away some material in the red area, but where do you solder the second wire then? I only see one silver dot in the lower left area(sorry for sounding noobish dont know the exact word). Do u also scrape some material of them?
side by side.
there are 3 wires that carry +3.3v from the PSU to the ATX header, so you could do 3 wires too if you wanted... just solder them all to that point where you scrape off the protective PCB coating.
could you use digital camera to show us where you solder these 2 wires?
for me, i did the 3.3vdimm mod (dirty punk's way). I manage to boot my pc but the pc become unstable (always automatic restart, windows log error, sometime hang during loading windows) no matter what ram frequency and timing i set. what's the problem huh?Quote:
Originally Posted by STEvil
p/s: i'm using khx3200ak2/512 which based on ch-5 chip.
The two red lines are how I did it. I'll get a pic tomarrow if I have time to.
http://www.xtremesystems.org/forums/...chmentid=22449
my question is same as eR1k. I wonder how did you solder the another wire? which point you connect to?
Typo fixed, scrape not scrap.Quote:
All you have to do is scrape away some of the protective material on the bottom of the board below the mosfet where the red lines I have added go to.
edit
http://www.xtremesystems.org/forums/...chmentid=22867
/edit
wow, do u solder that wire directly on the part of the mobo where you scraped away the pcb protective stuf
yes
got a better picture? i cant see it clearly... sorry.Quote:
Originally Posted by STEvil
ok.. do you see the area circled in red under the green "3.3=vdimm mod2" in the picture above? The copper in that circle is attached to the output leg of the vdimm circuit, all you need to do is scrape some of the coating away that is on top of it and solder directly to it..
No, I dont have a better picture.
could i connect the 2 wire in the same point , i mean the bottom left side one.Quote:
Originally Posted by STEvil
http://img.photobucket.com/albums/v2..._bot/abits.jpg