no the motherboard will not work without it. if the mobo would "let itself" run, then yes, it would put allot of voltage to the RAM, but it will not "let itself" get that far. comprendes?
no the motherboard will not work without it. if the mobo would "let itself" run, then yes, it would put allot of voltage to the RAM, but it will not "let itself" get that far. comprendes?
Might just send as much vdimm as it can (whatever your 3.3v rail is at). Or it might not start up at all. Or, it might just fry all the §§§§ plugged into it.
wow, I can't see the time of running dfi again :)
Evil_Spork, I'm sorry you killed your board but I think it's fixable. If you manage to calculate ohm on the broken resistor you can place the VR swapping it; as you removed old resistor, you should have two metal points on the board, just solder "the right" VR (200k + the old resistor ohms) on them and you should be ok. Plaese ask also someone more skilled than me, I'm saying this just in analogy to the nf7 mod I did. Hope it helps.
that sounds right but that wouldnt work. teh VR imputting on is going from one side of the resistor to ground. but i CAN solder two wires to teh points left and put the resistor back on at teh end of the two small new wires. and then i can add my VR in there. with that ill be able to adjust my vdimm to what i want.
i think i can get a good bit over 265 stable with more vdimm. i know my ram is holding me back at 265(wasnt stable but just getting there means i can.
Evil_Spork
You are unlucky :/ . i hope you cane fix it..this board is unreal :) i think 280-> fsb is no problems with high vmem and right memmory..i did 272fsb (with 2x512mb @3.3v) and the sticks are prime stabil @250fsb 3.3v (how high prime did your sticks do?)..i will by 2x256 soon i think they overclocks better..and do some vmem modd to :)
i didnt prime test... only 3dmark and general use. im on a new hdd and its ghetto.. dont have all my progs yet.
My infinity just came in the mail on Friday. First week back to school, so I'm going to have to wait till next weekend to set it up. I'm very excited though, can't wait to slap on the prometeia and the watercooling and see this baby fly.
Anyone can poste the vcore-Vsense mod for this board,I´ve been
searching but can´t find it.
It's in this thread, and Holst has recapped it here: http://www.xtremesystems.org/forums/...threadid=25299
page 15 of this thread.. maybe page 14. (for vcore mod)
well i managed to bench at 260fsb with my barton in(which turns out to suck big time, needs 1.95vcore to do 2300mhz and still isnt stable)
3815/3527 @ 260fsb 2-2-2-5 92%efficiancy(sp?)
gunna swap back my 1700 in.. the barton cant do any decent speed so its very limiting.
Change timings to this(if you have bh5)Quote:
Originally posted by Evil_Spork
page 15 of this thread.. maybe page 14. (for vcore mod)
well i managed to bench at 260fsb with my barton in(which turns out to suck big time, needs 1.95vcore to do 2300mhz and still isnt stable)
3815/3527 @ 260fsb 2-2-2-5 92%efficiancy(sp?)
gunna swap back my 1700 in.. the barton cant do any decent speed so its very limiting.
11-2-2-2-2-9-12
To bad your Barton don´t go higher then that :/.. My Thorton(L2@512Kb) do 2.4ghz easy and 2.5 ghz is no problem.
Did you fix it?Quote:
Originally posted by Evil_Spork
im wondering what would happen if i ran it with no resistor there... might it work? or would it put like 3billion volts into me ram?
You should be able to fit a VR in place of the resistor and change the Vdimm that way.
If somebody can measure the resistance on the board you should be able to select an appropriate VR and fix the board without any problems.
I wouldnt run the board without that resistor.. you may give your ram 5v.. or blow the voltage regulation up.
ive got a dead infinity here....i can measure that resistance for ya...what do i do tho, lol...set my DMM to 2k ohm? then what?
In order to measure resistance properly, you have to remove the resistor from the circuit, then measure. You might have to set your DMM to higher than 2k ohm aswell.
i using this board, and get this
http://www.geocities.com/universtech/dfi_248mem.txt
http://www.geocities.com/universtech/dfi_248_3dm01.txt
http://www.geocities.com/universtech/dfi_248_3dm03.txt
and here is the compare url @ FSB 248 Mhz http://service.futuremark.com/compare?2k1=7410797
remove it from the PCB? are u sure about that? theres no way to measure resistance with it on the PCB?
bigpoppa - with it on the PCB, you aren't measuring just that part, you're also measuring portions of circuit connected to that part.
Without taking it off the board you won't get an accurate measurement.
Has anyone tried running this board with some hynix ram
and shooting for 300 fsb? Sounds like the chipset could handle
it, and the efficiency hit wouldn't be that bad....
I'm gonna play with this board soon myself, and am deliberating
on what kind of ram to go with....
i got the resistor replaced.. i have a dead infinity, so i took teh clean resistor off that one and put it on my working board.
im in teh finity now.. got 8.5x250 stable... but it took some 1.9vcore lol.. this barton is HORRIBLE. im gunna sell it and get a 2400 mobile barton. see if i cant do any better.
260 was stable for while..(over an hour of windows use and sandra testing) but it crashed, cant tell if it was the cpu or mobo.
im gunna put my 1700 back in and test.. it will take 2400+mhz pretty easily. im hoping it will like ~2430mhz like it does in my epox.
i measured the resistance of the thing on the board.. 123.5k ohm.
after it was replaced it read 124.3k not sure if this will help or hinder.
holst, can i possibly remove this resistor and place a resistor in its place, like a 200k ohm and then turn the resistance up or down to raise or lower vdimm?
it sounds like i can,, but which way will yield more vdimm and which will give less.. i want to end up with my 3.3 bios setting giving 3.6 possibly. 3.5-3.6v. then the rest just scale down from there. can you help me figure out what to set teh resistance for on that to accomplish this. i feel this setup im on will give some truely great speed if i had more vdimm to play with. possibly beat xDuck's 266fsb speed.
Spork, removing the resistor that is used for the vdimm mod, and replacing it with a pot for adjustable voltage most likely won't work the same.
If the other end of the resistor (the one not connected to the IC) goes to ground, then replacing it with a pot will work. Just make sure you use the parallel, and not serial, combination of the resistors.
If the other end of the resistor doesn't go to ground, then this will change the entire make-up of the mod. This may lead to undesirable results.
very true... thats why im asking... i dont knwo what that pin does... if its the vOut to the ram, lowering the resistance will raise voltage.. but since were resisting it cant be.. if its teh vSence then if i raise the resitance of it it will work teh same as the mod i would be doing now.
I just ordered a DFI Infinity NFII Ultra, had enough of this AN7 POS!
Role on tomorrow :D
Did you try any CH5 walrus? I remember you had the same problem using even 200 with BH5 on the AN7. I had no luck on my infinity with that ram either. I know some people have had no issues but also I think some people are reporting issues with black level 2. just FYI. I think some batches of BH5 are unfriendly. We both had BH5 issues only when jumping to the ultra and infinity did not solve it for me.
New CH5 sticks and I can bench and game in the 230's.... so far. Good enough to keep now so I can finally start modding my mobo instead of aiming a room fan at the board.
I do seem to get slightly lower marks then my abit boards but my OS has been through quite a thrashing while using my hyper x bh5. Benny- how come so much higher in 3dmark with the soltek? The cpu clocks couldnt be that much of a difference so maybe it's your VC clocks, or are you experiencing lower 3dmark scores as well?
Probably going to be selling some hyper x BH5's with acknowledgement of there distaste for NF2 ultra's and pretty cheap.
bump:D
My BH5s perform perfectly fine in this DFI board:)
The problem with the AN7s was that they are just crap at overclocking on the FSB, especially if VCore is too high.