Vdimm mod: I Don't want to fry Another NF7-S 2.0

[KODE]

Hi Fellas,

I got my 3rd NF7-S 2.0 and I want to clarify some points before I attempt to do the Vdimm mod again. Here's a brief story: The 1st mobo ran fine for about 5 months Vdimm modded and then died after a 3.4V attempt. The second one died the same way but with less voltage: 3.05V. Here's the facts:

1- I was using the D23 subzero BIOS in both situations (a FSB winner btw).

2- I was using e Generic 450W PSU with a modded 3.3V rail.

I was wondering what could be the cause of second R.I.P, could the BIOS screw the voltages? A bad PSU? (please, not blaming anyone, I'm just asking and I was aware of the risks using modded BIOS).

I have the "new" NF7-S 2.0 with the Blue/Purple ram slots and some missing mosfets, maybe these "new" NF7-S 2 are crap? I mean cheaper components and the board doesn't handle a higher Vdimm anymore.

I really need to push up the voltages to make my rams work above 220FSB that's why I'm so pissed.

Help please.

KODE.

[AcEmAsTr]

ive got the nf7, did vdimm other day, been to 3.5 (having problems) with 3.8 3.3rail, cant say its died yet, checked connections?

[KODE]

AcEmAsTr,

Thanks for the reply. The second mobo was totally gone but I already have the 3rd NF7-S in front of me. Wich BIOS version are you using? Is your ram slots purple/blue?

[uwackme]

It seemed to me that there was a Vdimm OVP in the circuit somewhere. Mine attempting to go past 3.35 started acting weird....even with 3.65V rail.

[AcEmAsTr]

mines just an nf7, using D23 subzero, my board keeps rebooting when i go over 3.2volts vdimm, even with 3.8 rail

[Hell-Fire]

Could another possibility be heat related. Those FETs could be getting mighty touchy if heat is an issue. This is pure speculation of course.

Mine seems to act odd at 3.4 Vdimm as well.

I would use D22 Alpha1 AcE.

[AcEmAsTr]

i really need some epoxy to cool my fets(anyone feeling generous? :D), will make some sinks somehow.

[celemine1Gig]

Originally posted by AcEmAsTr
i really need some epoxy to cool my fets(anyone feeling generous? :D), will make some sinks somehow.

Why should somebody be generous? Just go out and buy some 2-component 5 Min Epoxy and mix it with some thermal paste. Then you've got your own thermal epoxy. ;) It's as easy as that.

[CaTalyst.X]

NO DONT DO THAT, thats stupid, just put thermal paste on evry part of the fet but one corner, then put a dab of superglue in the corner and stick it down. Presto. and that NF7-S 2 is crap..........its getting terrible reviews and probably cant use the same vdimm mod. get us some pics and rma that board if u still can.

-CaT

[celemine1Gig]

Originally posted by CaTalyst.X
NO DONT DO THAT, thats stupid

Well, why should that be stupid? It worked for me for over a year now without a single problem. :stick:
It would've been stupid if I told you to mix the thermal paste with superglue, but I didn't do so.
I advised you to use 5 Min 2-component Epoxy instead, which is what for example the Artic Silver Adhesives are beased on.

So if you have a really thorough and correct explanation, why that sould be stupid, please let me know. ;)

[blinky]

i use ceramique for my sinks and stuff, and it works fine, no need for epoxy

unless, that is, u compulsively pet your motherboard vigorously enough for heatsinks to come off

[blinky]

and the D25 by merlin gave me a good 15mhz over the D22, and D23's by tictac

[CaTalyst.X]

its stupid because a 2 part 5 min epoxy doesnt transfer any heat, u may have gotten lucky but somebody could get unluxky and insulate everything.

-CaT

[STEvil]

Originally posted by CaTalyst.X
its stupid because a 2 part 5 min epoxy doesnt transfer any heat, u may have gotten lucky but somebody could get unluxky and insulate everything.

-CaT

Thats why you push on it really hard :stick:

[celemine1Gig]

Originally posted by CaTalyst.X
its stupid because a 2 part 5 min epoxy doesnt transfer any heat, u may have gotten lucky but somebody could get unluxky and insulate everything.

-CaT

Man, you are the best! It seems you didn't even read what I wrote, did you?:slap: :D
Do you really think that the Epoxy is not thermally conductive, if it gets mixed with thermal paste? :stick: ;)



But, apart from that, something on the original topic from me again:

I'd advise you to get the DFI Infinity, because I would not dare to mod one more board, if I was in you shoes. But hey, if you don't mind killing another 2 or 3, go on modding the NF7s. ;)

[EQuito]

Originally posted by KODE
I have the "new" NF7-S 2.0 with the Blue/Purple ram slots and some missing mosfets, maybe these "new" NF7-S 2 are crap? I mean cheaper components and the board doesn't handle a higher Vdimm anymore.Well..., seeing that you like to OC, I'd say you picked up the wrong board.
Those new S2/S2G do not have multiplier adjustment, they lack CAS2 option and they have a weaker power circuitry.

[CaTalyst.X]

Originally posted by celemine1Gig
Man, you are the best! It seems you didn't even read what I wrote, did you?:slap: :D
Do you really think that the Epoxy is not thermally conductive, if it gets mixed with thermal paste? :stick: ;)



But, apart from that, something on the original topic from me again:

I'd advise you to get the DFI Infinity, because I would not dare to mod one more board, if I was in you shoes. But hey, if you don't mind killing another 2 or 3, go on modding the NF7s. ;)

It doesnt matter if u mix it with thermal paste, it is still only partially conductive, all im sayin is that the dab of superglue trick works way better and u can pop the sink off if u need to.

-CaT

[STEvil]

actually, it conducts very well if you place the heatsink correctly..

In fact today (and yesterday) I mounted 8 heatsinks to 11 components on my infinity (3 heatsinks on 2 each) and each heatsink is getting plenty warm which shows that not only is epoxy thermaly conductive, but trhat it works quite well.

Also worth noting is that I did not mix in any other chemicals or materials other than the two parts to produce the epoxy.. and superglue just plain sucks comparred to the bond and heat transfer you can get with epoxy if you take the time to do it right, actually.