So how'd you make out muzz?
I'm loading WinXP right now and I will hopefully do some testing either tonight or tomorrow.
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So how'd you make out muzz?
I'm loading WinXP right now and I will hopefully do some testing either tonight or tomorrow.
Been fuggin around the whole day today. been on/off. getting alot of phone calls and chit.
I'll be doing it tommorrow.
Plus I was doing a little orbage too.. got a little higher score tonight.... snowing like a bastardd here, ever see a garbage bucket packed with snow water......... lol
Still can't keep it cold enough because I have the 9700 and the cpu in the same loop both oc'd, running hv ..... don't take long to get the temps up to 21-25. which blows!!!!
I've just read the entire thread and am confident that you are on the right track. The STR1sense pin is originally connected directly to the Vmem output and what you have done is introduced a voltage drop across the output and STR1sense which will cause the IC to increase its output. The only thing that remains is to dial in the resistance to get your desired voltage.:) And you are absolutely correct in starting off with 0 ohms and going up gradually.
DDTUNG:cool:
Cool! DD's stamp of approval! :toast:
After fooling around a bit with Vdimm, I am pretty confident that what the BIOS and MBM is reporting as Vdimm is wrong. I noticed people said that the 2.9v setting in BIOS only gives 2.880v... well that's correct if you look with a software program but measuring it with a DMM shows it's really 2.906v. Another strange thing is if you are looking at Vdimm with USDM, you notice it floats around a bit... but if you have a DMM hooked up to it it is rock solid? :confused: I don't know what's going on there.
I dont either...... but I really don't care much about it........ :D
Glad to see you stop by with your stamp DD.
Thanks Man.
muzz
"Thanks all for the input. I will ask about the function with our design team. But I cannot make any promises."
-Epox Tech from amdmb thread.
So it payed off :) Hopefully they will add some VDimm, and make us all very happy people.
We shall see.
Finally got somewhere after doing the Vdd(chipset) modification(here). ;) I can now say that FOR CERTAIN, the Vdimm mod works.
Dude thats awesome....... maybe this board isn't the piece of crap alot are saying it is........;)
I've heard people bash Epox before and that doesn't really matter to me since I still think they offer some quality boards that perform pretty damn good(for the most part). ;)Quote:
Originally posted by muzz
Dude thats awesome....... maybe this board isn't the piece of crap alot are saying it is........;)
BTW... I'm using Corsair XMS memory for all the Corsair bashers out there. :D
I think my old samsung is gona be getting the 3.5v treatment once I get home.
hell... you only live once :D
Jeff,Quote:
Originally posted by Jeff
Finally got somewhere after doing the Vdd(chipset) modification(here). ;) I can now say that FOR CERTAIN, the Vdimm mod works.
Congrad's on the mod.... If you get a chance since I see you have long leads... to the VR.. Could you measure the VR @ where you have it set... I would like to use just a resister... Since you can't monitor it from Windows.... I'd rather have something solid, and immovable... In there...
I've abandoned using the A7N8X For my new project after losing the 2nd one for no apparent reason... They just stop booting,
I'm ready to give the EPoX a try... I loved my 8k9A2+ a lot.... Very stable, and fast, maybe not as fast as an Abit Clock cycle for clock cycle, But I found I could clock higher, and with NO DRAMA!
Thanks,
Royd
Royd, I'll try to measure the resistance needed for a .3v gain later today. That way the 2.9 setting will give 3.2v. BTW, this board maxes out at 3.2x volts. Randi discovered during his first mod attempt and I confirmed it when I was playing around the other day.
And as far as measuring Vdimm from Windows... I hope someone does the mod by lifting the leg on the chip and adding the VR there. I'm curious if doing it this way will make Vdimm monitoring possible.
Like I said a few pages back... my mod may be neglecting a trace that goes under the chip. :confused: I'm not sure.
Thanks Jeff,Quote:
Originally posted by Jeff
Royd, I'll try to measure the resistance needed for a .3v gain later today. That way the 2.9 setting will give 3.2v. BTW, this board maxes out at 3.2x volts. Randi discovered during his first mod attempt and I confirmed it when I was playing around the other day.
And as far as measuring Vdimm from Windows... I hope someone does the mod by lifting the leg on the chip and adding the VR there. I'm curious if doing it this way will make Vdimm monitoring possible.
Like I said a few pages back... my mod may be neglecting a trace that goes under the chip. :confused: I'm not sure.
Yeah... I was getting 3.28v. On the ASUS, which would have been nice.. But at this point, I'll take what I can get..
Royd.
Hello,
i made this mode on my M/B but i have a problem now.
The BIOS is showing only 2.43V for the Vdimm!!
Is this normal or did something went wrong?
I suspect that the trace isnt cut and so the Ohms are added!
A response and help would be appreciated!
Thx
Crozet
edit:but when i separate the circuit my comp dont boots.so the cut must be correct!
Croz..Quote:
Originally posted by Crozet
Hello,
i made this mode on my M/B but i have a problem now.
The BIOS is showing only 2.43V for the Vdimm!!
Is this normal or did something went wrong?
I suspect that the trace isnt cut and so the Ohms are added!
A response and help would be appreciated!
Thx
Crozet
edit:but when i separate the circuit my comp dont boots.so the cut must be correct!
If you have a multimeter, Try measuring the voltage right on the board
RoydRage
Hi,
i did just now. Its 2.43 and it cannot be changed from the BIOS!
I cant understand where the problem is....
Crozet
Wow...
Could you verify... That the trace was cut?
I would suggest using some junk RAM till you get this sorted... I have not done the mod yet, and am waiting for my board to arrive today.
Let me know how you make out
Royd
OK i verified it now.The trace was CUT!
I reversed all changes and my comp is working like before.
Im pretty sure i did everything correct, so im start having doubts if this mod is working!
bye
Crozet
You should say... working for you. I'm 100% sure it works for me since I'm measuring Vdimm right at the dimm socket and I get a better o/c from my RAM when I bump this voltage up to 3.2x volts.Quote:
Originally posted by Crozet
OK i verified it now.The trace was CUT!
I reversed all changes and my comp is working like before.
Im pretty sure i did everything correct, so im start having doubts if this mod is working!
bye
Crozet
Take a few pictures of what you are doing and maybe someone can help you out.
What resistance are you adding across the cut trace? You should be starting at ZERO Ohms and then working slowly up. Vdimm will top out ~300 Ohms at 3.2x volts and if you add too much resistance, strange things could be happening. I know my BIOS, MBM, and USDM all don't like when I have too much resistance.
I added a 300 Ohm resistor at the beginning.The comp didnt bootet with this one.I lowered to 150 Ohms.The result was what i described above!
Vdimm was 2.43V measured at the Q32.BIOS was saying the same and it couldnt be changed!
Separating the circuit would result in no boot!
So i connected the trace again and everything is working like before.
I dont say the mod isnt working, but it sure didnt worked for me.
I have done many mods in the past including the vdd on this one.So i can say im handy with such stuff.I really dont know where the problem is.
bye
Crozet
maybe i will give it another shot tomorrow with lower resistors.see if this make the difference.
OK ,i used a vr and it is working now! Dont really know the why since i didnt changed anything else but its cool!
Jeff , GREAT WORK!
bye
Crozet
Glad to see it worked with the VR. :toast:
Jeff, :toast:
What you would recommend for maximum voltage on the RAMs ?!
I have ~3.00 V right now.Should i give it more ?!Is it safe?
Im using 2 x OCZ PC3500 sticks.
thx
Crozet
Don't know what OCZ likes. :confused: You have to be careful with some memory because it just doesn't like the higher voltage. With that said, my Corsair XMS loves 3.1v-3.2v.