Help with vdimm & vcore mods for ASUS M2N-SLI Deluxe, please.

[bachus_anonym]

Hey guys!

I would love some help figuring out vdimm & vcore mods and reading points for this board, ASUS M2N-SLI Deluxe (nForce570 SLI, Socket AM2). I know that Shamino already did those for M2N32-SLI Deluxe (nForce590 SLI) but it doesn't seem to be the same

I have taken few shots of maiboard in question below. Max voltages at this moment are 2.5vdimm (BIOS) and ~1.65vcore (BIOS). I could use some vdimm of 2.7v+











Thanks

[persivore]

Can you check the voltages at the 2 points I've marked please

[^don.k's^]

Can you check the voltages at the 2 points I've marked please

Both points shows vdimm voltage in my M2N-E that has the same layout than M2N SLI. In mine it's 1,96 on the IC and 1,95volts in the inductance...

Any news ?

[Misko]

in my M2N-E

max voltages in the BIOS are 2.5vdimm and 1.65vcore right? (like M2N-SLI Deluxe)

[^don.k's^]

max voltages in the BIOS are 2.5vdimm and 1.65vcore right? (like M2N-SLI Deluxe)

Stock on my M2N-E is just crap. I can just adjust vdimm up to 1,95v and vcore up to 1,62-1,65. If i were able to get 2,5volts to de ram i wouldn do the vmod, yet. Anyway maybe something's wrong with my mobo or so that i can just adjust that voltages, i thought id have the same than m2n sli since they use the same pcb... I'd like to know if we can use m2n-sli bios, but i dont know anyone who can say something about that...

Regards!

[Lestat]

holy jesus.

look at how close that cap is to the PCI-E lock ? are these morons really that fvk'n stupid holy crap.

i thought it was bad on my -e premium board
man no way..

[persivore]

Can someone check the resistance between the pin I've marked and ground please.

[^don.k's^]

There are 512ohms. ( with power off of course )

Thanks!

[persivore]

For the Vdimm mod, connect a 20k VR between that pin and ground. Decrease resistance to increase voltage.

[Misko]

For the Vdimm mod, connect a 20k VR between that pin and ground. Decrease resistance to increase voltage.

is it important how much W (or maybe current) can handle 20k VR? Or i can use any 20k VR that i can find?

[^don.k's^]

is it important how much W (or maybe current) can handle 20k VR? Or i can use any 20k VR that i can find?

No, you can use any vr you can find. I use 20-25 turns VR. The vmod just manages voltages, not current ( this remains in to the mosfets i think ), so wattage isnt important.

[^don.k's^]

Thank you very much, ill try it this afternoon or on friday, as soon as i can.

[persivore]

For the Vcore mod, can you check the resistance between the pin I've marked and ground please.

[^don.k's^]

For the Vcore mod, can you check the resistance between the pin I've marked and ground please.

There are 1530ohms

[bachus_anonym]

Sorry persivore, late to the party but I will give you answers from my M2N-SLI Dx. BTW, thanks for help ^don.k's^

Now, to the answers:

post #2 --> both are 2.52v (at 2.5vdimm set in BIOS)
post #5 --> 512ohm
post #9 --> 1530ohm

BTW, vcore can be measured at that choke's leg, on the last pic of my initial post. At 1.537v set in BIOS, I get 1.57v from DMM and also 1.57v from BIOS Hardware Monitor.

I will try vdimm mod next week, persivore! Thanks for that one

EDIT: I have just added a legend for vcore and vdimm measurements on this mobo.

[funkflix]

Hi, the Vcore point won't work here, don't know why.. Should i try it on the missing cap?

Vdimm works fine!

[funkflix]

Hi, the Vcore point won't work here, don't know why.. Should i try it on the missing cap?

Vdimm works fine!

On the cap i can't measure anything too. Any ideas out there? I really need it, bcs. i have some strange Vcore "problems" with new 65nm Singlecores.

Thanks a lot in advance.

(If u need more pics, just say it)

[^don.k's^]

Just did vdimm mod, and it just works perfect, i went up to 3,12v ( yeah, i was really scared when i saw it @multimeter lol ), and got this with my better pair of 8000UL:



Using 2,8volts.

Ill post pics tomorrow, as i thought, M2N-E and SLI are the same, in pcb and vmods too.

Regards!

[Misko]

^don.k's^ do u have same cold boot, and reset problems like bachus_anonym with his m2n-sli?

p.s. 3.xx vdimm for ddr2, uf wau .

[^don.k's^]

Yes, i cant reboot from windows without shuting down, and saving bios needs some restart, this mobo runs great once you get it running, but, it's hard to get it running lol

I'll keep testing with vdimm mod this afternoon when i get some free time, i'd like to hit 580 4-3-3

Regards!

[persivore]

For the Vcore mod, connect a 50k VR between the pin marked in post #9 and ground. Decrease resistance to increase voltage.
If the pin on the chip is too small to solder to, could someone post a high res picture of the chip so I can look for an alternative solder point.

[bachus_anonym]

For the Vcore mod, connect a 50k VR between the pin marked in post #9 and ground. Decrease resistance to increase voltage.
If the pin on the chip is too small to solder to, could someone post a high res picture of the chip so I can look for an alternative solder point.

Cool! Thanks! But you're right, those legs are quite tiny. Here's a close-up I managed to snap, without removing a heatsink. Kind of crappy due to bursting flash, but only this way I could get the traces to show up on a pic.





EDIT: It looks like that soldering pad I marked might be the best choice for an alternative for Pin7, am I correct?

[Misko]

Soldering pad on the top dosn't working, i will try pin7 later. For the M2N-E owners, the vcore spot doesn't exist, there is only 3 phase not 4 phase like on SLI version, the 4th choke doesn't exist so it can not be the measuring point. Use 3th choke.

[bachus_anonym]

Soldering pad on the top dosn't working, i will try pin7 later. For the M2N-E owners, the vcore spot doesn't exist, there is only 3 phase not 4 phase like on SLI version, the 4th choke doesn't exist so it can not be the measuring point. Use 3th choke.

I have not done vcore mod myself yet, but have you also looked at the 1st pic that ^don.k's^ added in post #22. The top soldering pad I marked on my pic was the one I was not sure about. I was waiting for someone to confirm that since ^don.k's^ marked the very very top one. Now,that I think about it, the soldering pad he marked is the correct one...

[Misko]

I tried and nothing happend: