i´m searching a vcore and a vdimm mod for the msi k8n neo2 S939?
has anyone the board modded?
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i´m searching a vcore and a vdimm mod for the msi k8n neo2 S939?
has anyone the board modded?
Please post pics of the board.
I also want to know. I'm not going to vmod it but I want to measure the vdimm from the board. I am using a ddr booster but the board does not report the vdimm voltages correctly, thus i want to measure using a multimeter. Unfortuantly I dont have a good enough photo to upload.
Cheers
Check any FETs around the dimm slots....I sure there is one there reading Vdimm.
I have been playing with the K8N Neo2 plat I have here most of the day. I have spent most of my time working on the memory subsystem figuring out how to get the dual channel frequency to atleast DDR500.
Right now I fail goldmem at DDR466 with 1 - 4 failures per hour. I have tried everything and the only thing that works is going from 1T to 2T. That indicates to me this board needs a Vdd mod.
So I went exploring with my Flukes and I have figured out how to do the Vdd mod. It is pretty much exactly the same as the K8N Neo Plat mod. I will try it tomorrow in the morning as I don't like doing Vmods when I am tired. Vdd is measuring 1.66V currently on my board.
I have confirmed 3.3V rail to Vdimm mod works well on this board. Vtt tracks nicely after the mod. This hasn't net'd me any additonal gains with my 3700EB thou because of Vdd problem.
Good test points for Vdd and Vtt are next to DIMM slot 4. Use EC1 for Vdimm and CB30 for Vtt.
I’m going to receive this board tomorrow, and have any of ya figured out how to make a Vcore mod?
LaserEdge-> did you have any luck with the mods?
Eager to know =)
Check this pic, please.
Left-side FET generates Vddr, and right-side FET regulates/supplies
drain-voltage from Vio.
This Vddr circuit is similar to K8T Neo2's one, but not same, I think.
I've already found feedback line of Vddr and drain-voltage to CoreCell,
and probably 2 pattern-cuts are required for obtaining over 3V Vddr.
If upto 3V is enough, 1 pattern-cut is enough...
I also use DDR-BOOSTER with K8N Neo2.
It's enough for me, but I intend to modify this Vddr circuit just for fun :)
Check the attached image:)
> This Vddr circuit is similar to K8T Neo2's one, but not same, I think.
> I've already found feedback line of Vddr and drain-voltage to CoreCell,
> and probably 2 pattern-cuts are required for obtaining over 3V Vddr.
> If upto 3V is enough, 1 pattern-cut is enough...
--
The prediction above was partially correct and partially not correct:bows:
K8N Neo2's Vddr circuit is almost same as K8T Neo2's one.
This mod(step1) gives upto 3.2V in case of Vddr=2.85V setting@BIOS.
In my experience, Trcd=2 setting@BIOS gives lower Vddr(2.7V, without mod),
so set Trcd=3 or Auto and use A64Tweaker, or use CoreCenter please.
Many thanks to CodeRed!!!
I'll try Vddr mod(step2) later. It wil gives Vddr over 3.2V ...upto near Vio.
Excellent!Quote:
Originally Posted by kyosen
I’m currently like you using a Booster so a memory voltage mod isn’t quite necessary. But Vddr it increases the V to the NB? or am I mistaken?
Do you maybe have an idea of Vcore mod?
Cherio
Hi,
> But Vddr it increases the V to the NB? or am I mistaken?
>
> Do you maybe have an idea of Vcore mod?
--
OK, I've done several mods.
I expect that FET(Q20) generates Vdd(chipset voltage) and
FET(Q17) generates Vht(HyperTransport voltage), and now
both voltage are controllable :)
Vddr-mod(step2) also works fine. I've confirmed that Vddr
can be set upto 3.65V, though it depends on Vio.
In case of Vddr=3.65V, Vio is over 3.8V :D
Vcore is controlled by ISL6559, so mod is easy, as usual.
Connect Pin#10 and Pin#15 by 50k~25kOhm VR.
I'll disclose details near future, so stay tune!
Great!
Thanks, I will make the mod myself in the near future.
Thanks again!
Here several pics.
If you can understand japanese, quick explanation here:
http://219.113.251.125/c-board/c-boa...ne;no=2990;id=
Enjoy at your own risk :)
looked at those pics. but which mod is just for VDDR?
or do you have to do VDD too?
excuse the n00bishness.
did the VDDR on Neo1 was easy.is this similar?
you got any links in english??? :p:
Hi,
> which mod is just for VDDR?
--
Mod by 2k-Ohm POT and orange-yellow-green wires is for Vddr.
Mod by 1k-Ohm POT and purple-blue wires is also for Vddr but optional.
> or do you have to do VDD too?
--
No, Vddr-mod and Vdd-mod are independent.
Thanks
Quote:
Originally Posted by kyosen
thanks.what connection is the green wire making?not 100% sure as its behind the other 2 in that pic.
> what connection is the green wire making?
--
Green wire is connected to GND...in my case, right side of R232.
I want to supply lower voltage to FB pin than actual Vddr,
and green wire connection makes it firmely, even if the internal
resistor/impedance of FB pin is very high, I think...
...I'm not a professional of electric circuit, but this mod still works
fine in my case at least:)
is it hard to cut the trace and solder to it?
Quote:
Originally Posted by kyosen
thanks mate.im gonna do this at weekend when i pick up the 2k Vr(just the first mod not 2).
Kyosen im about to attempt the Vddr (step1)
Im not sure which trace the yellow and orange wires are soldered on to?????
I hope this pic may help you :)
Be careful not to damage other traces. Good luck!
cheers.i dont have the greatest of tools available but would i be correct in thinking if I just scrape away at the trace with a sharp knife until i reveal some copper, then the solder should take to it?Quote:
Originally Posted by kyosen
> just scrape away at the trace with a sharp knife until i reveal some copper, > then the solder should take to it?
--
Yes, that's right!
See the attached picture, please.
Quote:
Originally Posted by kyosen
ahh right i see scrape solder then cut a gap.cool.gonna continue tomorrow with it, buying a better soldering iron as this one is terrible especially at soldering a wire to a resistor.
I just don't get something, I must do step 1 (cut trace) DDR mod or I can do just the Step 2 by replacing the R402? It will work as a vdimm mod?
Anyone? Cause I wish to know too.Quote:
Originally Posted by Barr3l Rid3r
I tough I've finally got an answer :D
Is there an "3.3V Vio = Vdimm Mod" for MSI K8N Neo2 ?
Thx in advance :)
yes you must do step 1. step 2 is optional(required for higher vdimms).
Thx, but that is not what i really want! :) I want the 3,3V directly to the Vdimm, bcs i can turn my 3.3V on my PSU up! Like this Mod @ the K8N Neo Platinum (Socket754), dunno if its the same Layout, but i hope so.
http://www4.ncsu.edu/~rwbradl2/Vmods..._3.3=Vdimm.jpg
I have BH5 and its no prob to give 3.3V every day.
Gravdigga, for any Vdimm = 3.3v Vio mod, all you have to do is find the capacitor that is closest to the dimm sockets that is reading Vdimm and run a wire from the 3.3v input to that capacitor leg.
Ok, thx. If i have the Board @ the end of the week, i take some pics, and maybe u can help me to find this capacitor leg.
Thx in advance. :)
Hi :)
@ Hell-Fire
Here are the Pics of the K8N Neo2, maybe u can tell me the leg that i need :)
I think the one in the red circe are the correct one?!
Got the info from a post from kyosen on page 1 : http://xtremesystems.org/forums/show...602#post540602
Thx in advance!
http://people.freenet.de/funkflix/k8nback.jpg
And thats the frontpic of this part.
http://people.freenet.de/funkflix/k8nfront.jpg
Sorry, for the bad quality, but my cam sucks :(
Heh cams rule :slobber:
I plan on doing some of these tonight so i just would like to get some clarification before i make a total mess of things and this will be my very first project so i'd rather be over cautious than mess up the board. Some of my questions might be the same things others have asked but again i just wanna be absolutely positive i'm interpreting things correctly before i blow up my board :D
Step 1 is for vddr which can give you up to 3.2-3.3
Step 2 is vddr up to 3.65
As per step 2 do you actually pull the resistor off the board and slap on your VR in it's place (i've read what it says in the pic but i want to be 100% sure before i go ahead and do it)
The Vht is for chipset? This one i'm lost on. Where on the board can you measure this voltage?
I've seen 2 diff pictures of where to measure vddr volts from. Which one is correct? On a side note with all these pots do you start out all the way clockwise or counterclockwise and go up slowly?:toast:
Extremely nice work guys i do appreciate the feedback and information.
@GravDigga
yeap, thats the correct pin
just did mine and works like a charm :)
Hey! :) Thx alot for given me support! I was a bit afraid to do it beforeQuote:
Originally Posted by CodeRed
someone give me confirmation for that!
Could any1 show me where to measure VDDR? I looked at the pictures and already tried a few measuring points but I can't find the right one :rolleyes: Sorry if thats a dumb question
http://www.xtremesystems.org/forums/...chmentid=16656
This one won't work?
Indeed it does :D thx
Hello All!
I ran a wire from the 3.3V rail to the Vdimm(Vddr) regulator FET. POST's Ok, but going into W2K/SP4, the system crashes with the dark blue screen with small white lettering....
I know it's the right point as I used a DMM to observe the voltages as I changed Vdimm in the BIOS....
What am I missing? I have used this mod on a varity of boards without issue... Why is this board different..?
Many thanks in advance..... :)
EDIT: I see a pic of the FET 2 posts above this post...
3,3V to the Vddr-reading-point @ the Mosfet? Are u crazy?! :D
U must do the wire between the 3,3V and the Capacitor like in the pics
shown above! Hope ur board isnt damaged! :rolleyes:
Quote:
Originally Posted by RebelsHaven
Huh.. I thought Vddr is the Memory Vdimm point. It tracks with the Vdimm BIOS settings....
OK, thanks! That's what's wrong..... Board still works...
Tell us if it work fine after u change the Mod! :)
I need the mod to work as I've got the mem holding me back. 2.85Vdimm just isn't enough:
http://www.lejabeach.com/sisubb/msineo2102904-1.jpg
Just what is Vddr and why does it track the "Memory Voltage" as it's set up in the BIOS "Cell Menu"...?
Also, checking with a DMM, there is almost zero(0) ohms between the FET lead labeled Vddr, and the positive lead of the cap that is suppose to be connected to the 3.3V rail....
I'm a little confused here... Can anyone shed any light on just what Vddr is, and why it can't be connected to the 3.3V rail...?
Any phot of vio mod done ?
Thanks guys [[]]
Tomorrow i will show u one! :)
Hey guys, none of you had found an easiest vdimm mod?
I still want to know why the Vddr measure point can't be connected to the 3.3V rail. That would be the easiest Vdimm mod....
Vdimm = Vio is very easy :) But maybe to much voltage for u.
The Mosfet where u reading the Vddr is regualting the Voltage! He gets 3,3VQuote:
Originally Posted by RebelsHaven
anyway, but then he make 2,6/2,7/2,8 V etc. from it. Correct me if im wrong.
Yes, that is correct... The Vddr measure point tracks the "Memory Voltage" as it's set up in the BIOS "Cell Menu" The Vddr measure point also has zero ohms between it and the capacitors positive lead that is shown in your bluish pix above....
Vddr measure point = Vdimm exactly, yet when I connect Vddr or the (+) of that cap to 3.3Vrail, system crashes going into W2K....
Have you connected the (+) of the cap to the 3.3V rail...?
Thanks GravediggA [[]]
For me the vio mod is the best possible , because i have bh5 and i don´t want to cut the board :S
But this with my ocz will rock hard :D
yes, but I tough he isn't trying to connect it into input. I think He's trying to feed 3.3V straight to the output of that fet. But I still having a doubt about it. Why we do have a Fet to control the voltage if Vdimm is directly supllied by 3.3V line? The minor adjustments is done by the voltage controller and core cell.Quote:
Originally Posted by GravediggA
We should ask CodeRed, he already made it. (+) ist the quadratic leg ofQuote:
Originally Posted by RebelsHaven
the under side. imho.
+5V or 3,3V, one of them. Corecell is only Software afaik, no electronic component.Quote:
Originally Posted by Barr3l Rid3r
The "Standard 3.3Vdimm Mod" that can be done on any board is to connect the 3.3V rail to the Vdimm. That way the memory sees 3.3V....
Works on every board I have except this K8N Neo2. Crashes going into W2K. Removed, all is fine....
Problem has something to do with the "Core Cell" controlling the voltages I think...
The "Vddr Measure FET" has 3.3V on it input(drain) output(source) is controlled by BIOS adjusting "Memory Voltage"....
Hmm, hope CodeRed will look @ this thread again and will explain something.
He told me that it work fine at his K8N Neo2.
Mod works fine on my NF7, too!
Btw., which Ram and which slots do u use?
"Why we do have a Fet to control the voltage if Vdimm is directly supllied by 3.3V line?"
The FET is there to be able to adjust the "Memory Voltage" from 2.6V to 2.85V. No board maker give you 3.3V for the memory....
"Btw., which Ram and which slots do u use?"
Running GEIL PC4400 in slots 1 & 2... I can get to 275FSB @ 2.85Vdimm but I want 3.3Vdimm to reach 300FSB....
Mhm, dont think ur Ram really like this high voltages, its Samsung TCCC or
Hynix -5B or something else. They get really unstable by high Vdimm!
NO, GEIL loves 3.3V I run it on several other boards at 3.3V. It's the Ultra Platinum... Not sure of the chip as it's got the heatspreaders on it....
I'm trying to better this. It's as far as the DDR550 will go...
http://www.lejabeach.com/sisubb/msineo2102904-1.jpg
http://mar.h0sted.org/ramliste250804.htm
Ur Geil are Hynix D5 , ever i read something bout Hynix D5 they have
said, they dont like high voltage. But i dunno. Lets see tomorrow how my
BH5 will work with it. U messured the Vdimm after Mod on the Mosfet?
Does it show u the correct Volatge?
"U messured the Vdimm after Mod on the Mosfet? Does it show u the correct Volatge?"
Yes, shows 3.3V.... Very strange as I run this GEIL at 3.3V on Shuttle AN35/N, Jetway N2PAP-Ultra.....?????
Maybe Neo2 is more sensitive to the problem......
Thanks for the memory list.....
Most ppl with BH5 and Neo2 says that they wont get high @ 2,85V as at anyQuote:
Originally Posted by RebelsHaven
other Board before. They mostly maxed out @ 220 MHz. Its really strange
with Neo2. Maybe the "same" Problem with ur Geil.
Np. :)
OK, so that is why the "Standard Vdimm 3.3Vrail to Vdimm Mod" is not working for me....
I thought is was strange that it gets as far as booting into W2K before problems. If I had it all wrong, the board wouldn't even POST....
It seems that the Neo2 isnt easy to handle. But maybe someone other have an
good explanation for ur problem. :)
I'm happy just knowing what you have told me. I'll get better memory now that I know what is wrong... Thanks!
Now i have an little question for u, bcs i dont want to do anything wrong tomorrow. ;) Its that point in the yellow circle the correct one to connect the
wire?
http://people.freenet.de/funkflix/k8nback2.jpg
I don't know. I'm at the Office and the board is home. It is the (+) end of the capacitor. If you wait 8-10 hours, I will post a picture....
I just ordered OCZ EL 3200 with TCCD chips......
Ok, no prob to wait for me :) Wish u luck with the TCCD!
Thnx..... :)
I am now using a k8ns and with the vio mod the board can t pass the 220 htt dual , with 3.26v to the memory thats , my problem and the reason that e see to goo to the msi but if the msi dont like bh5 also i cant see where i am going :S
Can anyone test bh5 in this mobo with the vio ?
Thanks people :D
I have some Mushkin bh-5 that I'll test on an unmodded board.... I've had the memory to 240FSB on nF2 boards.... In about 5 hours I'll be at home from the office....
BH5 need very high voltage on this Board! With 3,3V + most ppl can reachQuote:
Originally Posted by |-jokker-|
260 and higher. Some new BH5 records are on the K8N Neo2!
280 2-2-2-11 and more! :)
Thank´s man
[[]]
Do I need to make both of those to get higher vdimm?
http://xtremesystems.org/forums/atta...chmentid=17105
I did just think that I needed to do the one there got 2 cables.
U need to do this one, to have Vdimm up to 3,2V!
http://xtremesystems.org/forums/atta...chmentid=16902
Damn I wont be cutting in my board so I guess Boosters is the only option for me. What dose the 2 cable mod do?
@ |-Jokker-| I tried the Mushkin BH-5 I have and it wouldn't even post at 10X220FSB.. Tried all types on timings. No good. I had Vdimm at 2.85V.... I have had that memory at 240 on other K7 boards...
@ Gravedigga Here is a pic of the "Standard 3.3V bus to Vdimm":
http://www.lejabeach.com/MSIK8N/VdimmMod/k8nneo2-4.jpg
Yeah, thx exactly what i want to do :)Quote:
Originally Posted by RebelsHaven
2. BH5 cant go over 220 without any mod, that sucks a bit, but not for them who modded this board :D
I didn't solder the mod in place because I don't have any memory that will work with it yet..... Maybe tomorrow.....
Ah so if I do that mod the I can raise the vdimm to 3.3v?
No rise, but the Vdimm is on 3,3V ever, no chance to change it.(when u mod ur PSU u can or u have an OCZ)
If u can increase your 3,3v psu rail the mem's will follow that value with that mod!Quote:
Originally Posted by NiCKE^
Weird that oc with mushkin bh-5 cuzz i see lot of cases that work like a charm, more then 270, bad luck maybe????
Ever tried those bh5 on a different board ?
Yeah think its up to around 3.4V.
Can't belive that noone found an easiest vdimm mod yet!
Thats probably coz people are using the Vdimm/3.3V bypass mod for really high Vdimm values and BH5.Quote:
Originally Posted by Barr3l Rid3r
how can I solder in the trace? :(
@potkit: You have to scrape away some of the laminate to expose the copper trace. Tin the copper, tack down your wires, done. Just don't leave the iron on the trace too long...as quickly as possible as a matter of fact. You can cause damage pretty quickly if you get too much heat on the board.
I've got a question myself about kyosen's mods. I understand that the 1st step only gets you so far without doing the 2nd. I'm just wondering what happens when you do OVP the board. Does it just not post until you adjust VDimm back down? Also, how far down do you have to adjust the 1k in step 2 to get the board to let you do say 3.6-3.7V? I'd like to just drop a fixed resistor in for the OVP defeat and not have to :banana::banana::banana::banana: with adjusting it, or running into OVP, but really have no clue what it'll take. Obviously less then 1k, is maybe 500 Ohms enough?
Now, unlike most of people looking at VDDR I am more interested in VDD mod.
http://xtremesystems.org/forums/atta...chmentid=17105
Looks like to me the var in bottom is used for VDD mod. And leg that says VDD of mosfet must be measuring point. I am guessing you want to start at highest posible resistance on this mod? Running out of FSB regardless of HTT on dual channel vs single channel and I think this might be the fix doctor ordered... time to look where my grabbers are with 20kohm attached once I get some confirmation. What is default value of vdd er... chipset voltage anyway? And what should be decently safe zone based on nForce3 design?
Thanks in advance :)
If I solder a pot between the two spots, would'nt it be possible to change the vdimm that way?Quote:
Originally Posted by RebelsHaven
Quote:
Originally Posted by digitalfrost
Sorry man there's no way to do that, unless you could find a 1ohm 15W pot.
the 3.3V line gives something around 5 amp to the fet, with something around 15W, pots usually supports around 1/2W so it won't be enough.
I can use a variable reosthat (1ohm 20W) or eighther some diodes in series feeding it straight from the 5V line.
Did anyone tested the vio eith bh5 ??
Tomorrow i will have my msi k8n neo2 and later i will test the vio mod.
Tomorrow night i will have results for everyone. :D
Yeah i've already made it! Works fine here! Can bench up to 252 MHz with
3,3V. Sys. runs rocksolid with the settings u see in my Sig.! :)
Sweet man , tomorrow i will test my msi too , i hope so.
Great oc man
Hi,
To mikead_99,
> I'm just wondering what happens when you do OVP the board.
> Does it just not post until you adjust VDimm back down?
--
Sorry, what is "OVP" ? ...you mean "over power" ?
English is not my own language, so abbreviation is difficult for me :)
>Also, how far down do you have to adjust the 1k in step 2 to get the board
> to let you do say 3.6-3.7V?
~
> Obviously less then 1k, is maybe 500 Ohms enough?
--
I'll check it later...now I'm busy at Dothan testing;)
To jinu117,
> Looks like to me the var in bottom is used for VDD mod. And leg that says
> VDD of mosfet must be measuring point. I am guessing you want to start at
> highest posible resistance on this mod?
--
Yes, that's right!
> What is default value of vdd er... chipset voltage anyway?
> And what should be decently safe zone based on nForce3 design?
--
Default value of Vdd was around 1.6~1.65V, within my memory.
I don't know safety zone, but confirmed upto 1.693V ;)
Thanks
kyosen: Yes, "OVP" I'm meaning Over-Volt Protection. I am assuming this is why only 3.2V with step 1, and more after doing step 2. I was just wondering how the board will act if I try to set higher then the board will allow before making the step 2 change.
Thanks for looking into it, I'm glad you still pop into this thread. I need to buy a tool to get the Corecell cover off, so I can't do step 2 quite yet anyway.
Hi mikead_99,
> >Also, how far down do you have to adjust the 1k in step 2 to get the board
> > to let you do say 3.6-3.7V?
> ~
> > Obviously less then 1k, is maybe 500 Ohms enough?
> --
> I'll check it later...now I'm busy at Dothan testing
--
Now I've checked it after soldering off one of wires.
It's about 650ohm.
In this state, I could get Vddr=3.698V at Vio=3.823V.
> I was just wondering how the board will act if I try to set higher
> then the board will allow before making the step 2 change.
--
Too high Vio/Vddr may causes failing cold boot,
but in my case, the system looks enough robust.
I could start up the system at Vio/Vddr=3.807/3.653V.
PSU: Zippy-460WS(5V&3.3V modded)
memory: M.tec PC2700(BH-6) 256MB x2
Good luck!