2 matching sticks of Corsair 3200 platinum 256MEG
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2 matching sticks of Corsair 3200 platinum 256MEG
Welp....I finished my external Vmem regulation circuit and decided to fire up the board before installing it and testing, pulled out my keyboard and mouse to find the 3 lights blinking on the keyboard and my optical mouse blinking with it. WTF??
Hit the power and nothing...no fans no nothing. No mods done either..still stock board. The board worked flawless until I shut it off early Sunday morning before turning into bed. Hadn't run all day yesterday until I tried starting it. Confirmed PSU is fine....NF7-S is on my test bench outside the case lying on its bubble wrap sleeve. No physical evidence of problems. Maybe an internal short of some type?? No clue here...In my years of doing this stuff I've never seen the blinking keyboard light syndrome and a board that will not power on. Strange indeed.
So project Vmem is on the back burner until I aquire another board..my apologies to all once again...seems my luck is going the other way one more time.
Randi:D
Sorry to hear that MrIcee :(.
I have a NF7 just laying around and I think I might give this mod a try. My soldering skillz are not that great tho. Im gonna look this thing over a few more times before I even attempt it. :)
Randi,
sorry to hear that, my friend. That's what always happens to me when i'm gettin closer to something. try discharging it completely, battery removal etc. well, but you've done it already i guess.
Randi,
What did you get your abit 4200 up to? And what kinda cooling? My experience w/ my Abit 4200 has been very pleasing. Actually to be quite honest it's the only Abit product I've liked! Got mine up to 333/740 aircooled after mods and some heatsinks.
Thx!
-sys
sys:)
Using 1.9v GPU, cooling it with -20c coolant feeding the MCW50-T waterblock, and feeding the ram 4v...I was attaining 365/670 without use of ram sinks. I'm not sure how that compares to others experiences....but withthe stock OTES cooling I could only get to 315Mhz with stock volts and 600Mhz on the ram. I've heard some of the non-OTES cards clocked better than this. Yours is obviously much better than this one. The Hynix 3.6ns ram on this board is not very good at all for clocking as proven by my results.
Twiggy.....be very cautious trying the Winbond regulator mod...its nasty. Thats why I didn't do it..and developed something new to try. I had my components built but the board failed before I could try this "new" method. I'll keep everyone posted when I recieve another NF7-S.
Randi:D
That's a shame, Randi...seemed like you were starting to make some gr8 progress. The vibe I get from this NF7 is that its a very fast board, but has some major stability(QC?) issues. I hope these things get worked out w/ the newer revision of this board w/ the holes. Good luck man.
N8:)
These boards were not designed with us in mind as enthusiasts...these were for the SI(system Integrators) and OEMS. In those cases...these boards would be just fine because they wouldn't need the high voltages and other amenities we look for in a board. It was the demand for the board that helped it into the retail channels...and it should not have been allowed. ABITS MO has always been to be late to the party with a new board..but it was always the best version of a particular chipset board.
I believe the Rev 2 is the board we have been looking for, as alot of our concerns have been addressed and are contained in the new revision.
I'd rather see ABIT late out the gate than releasing a premature product into retail for sure. It was a big mistake. I think these boards are fine at stock or a little over stock in OEM situations, but in their current form do not hold up to the benching beatings we put them thru running right at the edge. IMHO this iteration was NOT designed for that purpose...but to be integrated into pre-built systems for the average user.
Anyways...my volt mod is all built and awaiting my next board for evaluation:)
Randi:D
Randi,
Dunno if it will help, but when I put ramsinks on mine, before my voltage mod on it, I went from 615mhz to 641mhz! Then I put an 80mm fan over the ranksinks and had an ambient temp of -5C or so, and the volt mods, and well, that's how I got it to 740!
For the cpu core I used just a Cooljag 1U copper heatsink. For the core I used 1.95v and for the mem I think I was cranking it up to hmm... I _think_ 4.15v.
Macci has the best Abit 4200 overclock though @ 371/742! Suprise suprise!
EDIT: I just checked, you had said that your card has 3.6ns mem, where-as mine has Hynix 4ns. That would probably be the determining factor.
Still waiting here... Abit have said they are sending me a sample board with all mounting holes... next rev up from what most ppl have... will let ya know what I find out as soon as it arrives... whip over any notes on the vmods Icee and I'll try em out as soon as it arrives...
i was set to go on doing the vmods today, till i looked at the voltage regulator for the vmem mod...and well, its right next to the dimm slot and close to 2 caps
will this new vmem mod you are trying out require cutting leg 19 of the winbond chip like the previous vmod?
Nope;)
That Winbond chip is a biatch, isn't it??
I just need to test it before I pass judgment on it's effectiveness and worthiness. I'll have another Nf7-S in a day or 2 so I'll keep you posted:)
Randi:D
It'd be nice to not have to cut the trace or unsolder the leg. And hey, maybe MBM and USDM will work too. :D
the vmem mod is intimidating is what it is :mad: ...
conspiracy theory of the day...
i think abit surrounded the winbond chip with the dimm slot and caps on purpose to stop some of us vmodders :eek:
The Vmem mod is almost impossible except for a highly experienced and skilled technician, such as one of the gentleman at XTW, XtremeTekWerks. If my project doesn't work the only other alternative is to inquire about XTW doing this mod:)
Randi:D
will XTW do vmods for a price for the average joe?
if so, do you know how much?
Welp I had XtremeTek Werkz losen up pin 19 and hook up a 10ohm resister for me today. I got home and added on the 100 ohm VR set at 100 and The mem mod works sweet:D At 100ohms 2.7 will get you 3.12V, at 2.4 you get 2.78 ohms :D
I think for the NF7 we should start with a 200 Ohm VR if any one plans on doing it.
Any word on a chipset mod ?? :)
OPP
Excellent Eric:)
Keep us posted on your future results. I wish I had XTW closeby so I could get this stuff done quickly. As soon as I get another NF7-S I'll be able to post the vdd mod. I built my own circuits to implement the mod but the board has gone south before I had a chance to try it out. Heres a pic of my custom circuit providing external voltage regulation capability...the next thing is how well it works and if it is a reliable solution.
Randi:D
This vdimm mod wouldnt involve wiring all the vdd's to a vreg'd 5v line from the psu. Thats what I did to increase the vmem on my bd7-ii a while back, although i just wired them into the 3.3v line :p
]JR[
XTW is within driving distance for me, i think i will stop by there some time this week to drop off the board to get it vmodded...
Yes...thats what I'm attempting, bypassing the internal voltage regulation circuitry, and taking a 3.3v line, regulating it to the desired voltage, and feeding it to the board regulated output side of the Mosfet. I reduced my 3.3v line and fed it directly to the Mosfet with great success. The circuit I built yesterday will regulate down to 1.2v which is ideal for both Vmem and Vdd.
Randi:D
OPP- Will XTW do v-mods for anyone? ;)
MrIcee- One of my friends NF7 just did the same thing yours did. Cold boot and the keyboard lights flash.:(
Also any word on the OVP mod??
i got in contact with XTW, and they will do vmods for anyone at a price range of $25-55
twiggy:)
Yep..when I went to my system late Sunday afternoon..the 3 keyboard lights and optical mouse were flashing in unison. The board WOULD NOT power up...nor has anything I've tried, all standard troubleshooting procedures, worked to alleviate the problem. I believe it's a problem in the boards circuits somewhere...I even went as far as to pull the bios chip out and they still flash.
I'll have another board here today..then we'll start progressing foward again:)
Randi:D
Need a chip set mod:D
I'll be hooking up the NF7 today and try some 3D at 220x13, should do well with some very agressive timings:)
OPP