ok... good luck man... hope vtt mod will help trigger up ur FSB... :)
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ok... good luck man... hope vtt mod will help trigger up ur FSB... :)
That should work, but you will also have to cut the trace going to the vsense from the mosfet or that voltage will override what vbat is sending since it is higher... unless vbat is inline from the mosfet ;)
thanx STEVil.... :)Quote:
Originally posted by STEvil
That should work, but you will also have to cut the trace going to the vsense from the mosfet or that voltage will override what vbat is sending since it is higher... unless vbat is inline from the mosfet ;)
if i dont want to cut any trace on my pcb... is itpossible to do other way arround....
feed those Vbt mosfet feet straight to Vdd voltage or AGP voltage...
than that will override Vbtt voltage set by Winbond right? :toast:
It will indeed, hope it doesnt fry anything important, though ;)
nope it wont fry anything... :DQuote:
Originally posted by STEvil
It will indeed, hope it doesnt fry anything important, though ;)
Vbtt sense will detect the vbtt is higher
than it will set lower vbt voltage thru Vbt drive leg....
anyway AGP / Vdd voltage will overide those voltage set by Winbond IC....
and we can change it via bios.. no need VR at all..
:toast:
Bump-Ahoy ^^
Has anyone performed the Vbt on the NF7 yet.
no body dare i think... hehehe :D
Well poop.
I may grab one and try it out and if it doesnt work...hope for a RMA...lol.
GL Hell_Fire... keep us inform when u done the mod... :D
NF7 fixed :D but I dont have the time (I m off for the Easter) and a spare PSU and VGA to do some measurements on the back. But when I return I hope to contribute on finding @last the Vbt :)
damn... i think i need that mod badly... i think...
funny thing is that with 2.8v/2.9v in BIOS those reading points on the Dual-mosfet are 1.44v/1.49 respectively... i can't seem to have 1.54v u got... hmm...
maybe that is the reason at 3.0v Goldmemory is good up to 223FSB but to get 236FSB pass GM i need whooping 3.3v
just a quick question about alternative way... can u guys tell how exactly should i connect this vbt mosfet leg to AGP... and would that mean that setting vagp in BIOS to 1.7v would also set vtt to 1.7v (half of 3.4vdimm) ??? thanx
I think u should connect it @ D1 (both). But I m not sure on this. Maybe someone else could confirm it.
D1 legs are on the Dimm side
it looks like it is gonna be kind of difficult to cut trace from pin2 of Winbond IC...
i borowed this pic from here - unfortunate guy that had Winbond IC removed from the mobo...
http://www.xtremesystems.org/forums/...id=33547&stc=1
so the trace is exactly under the IC...
and here's the backside of the mobo with (what i think) spot where that trace from pin2 ends...
http://www.xtremesystems.org/forums/...id=33548&stc=1
So instead of cutting the trace, you could just "lift" the leg of pin2 up so it doesnt contact MB. With correct tools, bend it up, and you can attach a wire to the MB pad and another to the flying pin.
You'll need a magnifier ring light and sharp tweezers used for SMD rework..... and a micro point soldering iron.... Weller EC3001.
keep it going guys... hehehe :D
u wack me... what is ur highest vbt voltage from DMM reading?
have any 1 done Vdd booster? check in my sign....
some of my forumers have done it.... no problem... :thumbsup:
Anyone care to try this? Starting at 0 ohm, raise resistance.
That looks like a tough one... I think YOU'RE the guy to try it, Malves :D
C
just one thing makes me wonder.... how do one solders something onto the trace? isn't it covered with some protective layer? i don't think solder sticks to it.
so don't i have to scrub little bit of it to expose copper trace and then solder to it or what ?
Malves are u sure this is the Vbt sense trace?. If this is it then yes this is the mod! Or it could just be done for testing, scrutching and pasting a trimmer (first @max and lowering) to ground. I will definately do it in 2 weeks (when I get back). If no1 trys it until then. :D
Now that I saw the picture of the removed Winbond is more clear to me which is the trace. Thanks bachus_anonym. And of course thanks tictac for the Vdd Booster :D.
Upping the pin 2 is nearly impossimple! It's too close too thin!
Hi there,
I´ve been reading this thread since the beginning, and since the first post (from enduracell) I realised that Vtt isn´t holding enduracell mobo or memory from OCing more, well, I concluded this cause I´ve also a NF7 rev 2 and KHX 3200 (w/ BH-5) and I pass the 240 MHz with 3,2V with Vtt @ ~ 1,44V, I mean I done the Vdimm mod to have 3,3V at 2,9V (in BIOS) and when I set it to 2,8V (in BIOS) wich gives me the 3,2V for Vdimm and 1,44V for Vtt I can do 243 @ 11-2-2-2 - 6/6...
I don´t want to be negative, just posting my opinion...
Anyways, I believe this mod could help some people, and/or, hopefully, enduracell, but by my own experience with the hardware in cause tells me it won´t help.
And, for what I´ve seen the max fsb that people can reach with their NF7s is within 240-248 MHz (without extreme mods), so my guess is that u reached ur mobo limits. Have you already tried 6/5 or 5/4 (CPU/mem) ratios to conclude that your mobo handle more than 240 MHz FSB?
And btw, what is that Vdd booster mod?
And another thingy, anyone gain any MHz upping their Vdd on NF7?
My NF7 does exactly the same from 1,6V to 2V...
i have "kind-of" dead NF7-S. it powers up but does not start... i shortened it while i was measuring vdd on the mosfet - now it shows 0v :-) but all other voltages are right... so if i only was sure how to make solder stick on that trace i would try it even tommorow...
what do you mean by "i can do"? u mean 243Mhz "prime stable" or just to get to windows or e.g. "goldmemory stable" (memtest, even new one is not the best mem tester). i can get to windows at 252FSB but it's nowhere stable... goldmemory shows errors ar 240FSB and i'm pretty much sure that vtt is gonna help...Quote:
Originally posted by Bugs
Hi there,
I´ve been reading this thread since the beginning, and since the first post (from enduracell) I realised that Vtt isn´t holding enduracell mobo or memory from OCing more, well, I concluded this cause I´ve also a NF7 rev 2 and KHX 3200 (w/ BH-5) and I pass the 240 MHz with 3,2V with Vtt @ ~ 1,44V, I mean I done the Vdimm mod to have 3,3V at 2,9V (in BIOS) and when I set it to 2,8V (in BIOS) wich gives me the 3,2V for Vdimm and 1,44V for Vtt I can do 243 @ 11-2-2-2 - 6/6...
I don´t want to be negative, just posting my opinion...
Anyways, I believe this mod could help some people, and/or, hopefully, enduracell, but by my own experience with the hardware in cause tells me it won´t help.
And, for what I´ve seen the max fsb that people can reach with their NF7s is within 240-248 MHz (without extreme mods), so my guess is that u reached ur mobo limits. Have you already tried 6/5 or 5/4 (CPU/mem) ratios to conclude that your mobo handle more than 240 MHz FSB?
And btw, what is that Vdd booster mod?
And another thingy, anyone gain any MHz upping their Vdd on NF7?
My NF7 does exactly the same from 1,6V to 2V...
i assume that infinity can go a lot higher on fsb that nf7-s partly bcoz vtt following vdimm... assuming that infinty has max 3.3v for memory and nf7-s 2.9v... vtt probably follows vdimm that was set in bios (same happens on nf7-s up till 2.9v) up to 3.3v giving probably 1.65vtt...
i will definetely try it... even people that made vtt/vdimm mods "hipro style" on Intel board say that it helped...
I ment Prime95 stable, I use Prime95 to test stability...
Like I said, I think it won´t help, specifically, enduracell, cause like I said I run Vdimm @ 3,2V while Vtt is @ 1,44V, and it is stable...
So it isn´t a memory problem, in my opinion and Vtt has to do with memory.
And I don´t think DFI makes ~280 MHz, just because it has a max of 1,65V for Vtt, I think it´s another thingy...
Well, I just hope I´m wrong and that this can help raising FSB on NF7s
The real test to conclude if Vtt is important or not, is to use some memory that can do ~250 MHz with 3,0V, right? In this case Vtt wont hold it... any1 with memory able to do this?
GL to Vtt mod beta testers :D
I will as soon as I get my hands on a NF7 next week.:)Quote:
I think YOU'RE the guy to try it, Malves
You have to scrape the yellow spots to see the copper and solder the wires. :)Quote:
how do one solders something onto the trace?
Yes, bro. I am postive. With that picture of the IC removed, it was easy to find it. That guy's lost, may be our gain.:)Quote:
Malves are u sure this is the Vbt sense trace?.
Start trimmer at max? No. According to the IC specs there's no feedback divider. So, we have to "create" one, to trick the controller in feeding more VBT (Vbt=Vtt). You start at 0 omhs and raise the resistance to get more volts out of the controller.:)Quote:
(first @max and lowering)