I am using a 50K VR - but figure that U should be able to go from 1.7V - 2.1V+ ...
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I am using a 50K VR - but figure that U should be able to go from 1.7V - 2.1V+ ...
I use a 50K and easily get to 2.1,,,so theres some left in it..
Way I have it is at +.05 for each setting in bios until I want to bench,,then I set it so its at 2.05 at 1.85 in bios.
HI,
Have noticed that my vCore becomes erratic above 2V going up and down like crazy i.e. I set it to 2.02 and under load it may go up to 2.05 and then drop to 1.95v! .
Does anyone have idea as to what might be happening and what I can to do to resolve it?
Not sure....mine does that as well...Quote:
Originally posted by roky
HI,
Have noticed that my vCore becomes erratic above 2V going up and down like crazy i.e. I set it to 2.02 and under load it may go up to 2.05 and then drop to 1.95v! .
Does anyone have idea as to what might be happening and what I can to do to resolve it?
Thought maybe is was my psu, but after the mod made my rails solid and high, still does it.
Not sure....mine does that as well...Quote:
Originally posted by roky
HI,
Have noticed that my vCore becomes erratic above 2V going up and down like crazy i.e. I set it to 2.02 and under load it may go up to 2.05 and then drop to 1.95v! .
Does anyone have idea as to what might be happening and what I can to do to resolve it?
Thought maybe is was my psu, but after the mod made my rails solid and high, still does it.
But mine doesnt flux that much,,maybe .02 or so.
How does one make the Rails solid and High?
You need to tell us what psu you are using in your rig bud before we can help you.
It may be something simple you can do based on your psu maker and model, or it may take a vmod or 2.
I think it's most likely the PSU, or some mosfets on the board are running hot (causes fluctuations too)
Hi there, Thanks for the help thus far Guys.
My power supply is en Enermax EG851AX-VH. - In reply to post 158
I have also noticed that the cluster of 4 mosfets (above the AGP slot) run quite hot even with a passive heat sink. - In reply to post 159
ROK
really? on my board they are only getting a bit warm. ~40°C...maybe 50°C
but not like 80°C on my 8rda+!!!
i got a question im plainin to vmod my a7n8x ... wont be a too big prob ...
my question is : do i have to set the pot to min or something so i dont get like 3 volts and kill the system?
the first start after the mod u know... or wont it boot if i set it too low?
thx in advance
X
At first boot you need to set it at a high resistence so that the voltage flow is low.
After a boot, check your voltage at the measuring point and adjust from there. Depending on what pot you used, you will need to be very careful how fast you turn that puppy.
bump!
is there a Northbridge voltage mod for this board? Ive been told to raise it from 1.5 to 1.7 if i want over 200fsb....
oh and hi btw :)
http://www.maximumoc.com/
There are several links at the top of this page. Click the one named "Guides and Articles". You will see a listing for A7N8X.
I am not sure if you have looked into vmodding the A7N8X b4 or not, and whether you are familiar with its component placement on the mainboard, but sometimes people call the North Bridge vmod the South Bridge vmod simply because the actual mod occurs near the SB chip. Not sure what moddin the SB would gain someone in the first place since it controls USB, sound and stuff like that.
There are several ways to do the NB vmod, but I recommend the one where you solder the resistors to the chip versus soldering to the itty bitty little thingy...as you can heat it up to much and it falls off, then you have lots more moddin to do to get yer board working again. Be sure to either have a very small smd grabber, or a high power mag glass and steady hands as the legs on the ic to which you are soldering are uber tiny.
GL and happy moddin.
How well is A7N8X in high FSB compared to 8RDA+ and NF7-S ?
My understanding is that the NF7 is a better performer, which hurts to say as I own the A7N8X. However, people have also hit very high fsb action on the A7N8X, but it can take a little work of course. You need to do the mods and have proper cooling.
For example, after the vmods I added colling to the mosfets as they were really kicking out some heat. Also, all NF2 boards are sensitive memory wise. The little buggers are picky to say the least. At first I had Corsair in my board, crapped out..but now it is stable.
Given vmods, proper cooling, and good quality mem, I would wager the boards you listed above are all comparable to each other. Put it this way, many many people have hit insane fsb on all the boards. Depends on how far you wanna push your components. Are you willing to push up that vdd and vmem to get those fsb speeds.....are you willing to say buh-bye to your warranty (unless you are one bad ass solderer or use smd grabbers)....?
Man very nice, where did you get those grabbers?:slobber:Quote:
Originally posted by nikhsub1
I thought I took MORE pics, oh well, here are a few shots of the SMD grabbers on the mobo:
http://www.netbetty.com/H20/asus/vcore.jpg
http://www.netbetty.com/H20/asus/vdimm.jpg
http://www.netbetty.com/H20/asus/ground.jpg
Lets see, you buy the SMD grabbers and the VR and you just attach the grabbers on the VR and a away you go? Correct me if Im wrong, I really need to do these mods.Quote:
Originally posted by cleoent
hmm... that was the easiest mod i've ever done. I bought a cheap grabber from fry's, and a 25k pentometer and now im running a 2v, sweet!
Well, almost that easy, be sure the VR is set to the correct resistence just to be safe.
Attach the grabber to the leg of the IC you wanna mod, then attach the grabber to the VR..dont forget your ground. :hehe:
Thnx a lot bro, if you dont mind can you possibly map me out a pic on the whole procedure. Advance thnx! :D Appreciate it :DQuote:
Originally posted by Hëll ‡ Fîrë
Well, almost that easy, be sure the VR is set to the correct resistence just to be safe.
Attach the grabber to the leg of the IC you wanna mod, then attach the grabber to the VR..dont forget your ground. :hehe:
Check out www.maximumoc.com for a full write up including pics of all the vmods available for the A7N8X motherboard.
Click on "Guides and Articles" at the top which will take you to the "Guides" page. You will see a link for the A7N8X vmods in the middle of the page. It is very well written and easy to follow. The only difference is that instead of soldering the wire to the ICs you will be using the SMD Grabbers instead.
If you are still confused just reply back. ;)
Any body know where the vcore failsafe is set on A7N8X (rev 2.0) Series MOBO's is set at. I recently did the Vcore volt mod w//excellent results: FROM p95 Stable at 2.26ish to rock solid at 2.375 and still testing/pushing.
I've heard it is set at 2.1 but I get no shutdown at 2.15, have seen posts on other forums stating running Vcore at >2.2.
Where is it set(rougly) and does any when have a clue as to disabling or upping it.
Thanks in advance,
T
__________________
ASUS A7N8X-X
Athlon 2400+XP w/Thermalright slk800A
512 MB Winbond PC3200 DDR,
ATI Radeon 9500 PRO (w/warp11 BIOS)
Western Digital 80GB HD w/ 8MB cache (WD800JB), Aopen 48x12x50 CD-R/RW, Cisco Aironet 350 broadband connection Soundblaster Live Value
420W Thermaltake PSU w/ PFC.
This is a prob that a few are working on now. I have upped mine to 2.15, she died loading windows, but me thinks that was a cooling issue versus any fail safe. We are mainly looking at the IC that you would do a VCore mod on: http://www.maximumoc.com/img/hardwar...pu_labeled.jpg
The theory is possibly cutting one or 2 of those legs would get rid of any vcore limitation...but there is no definitive proof yet as no1 has tried it.
There is a method that was developed by the finnish I believe that allows for 2.35... but the pictures were always too garbled to understand what the heck they were doing, and no one could get in contact with whoever took the pictures hehe... But dang 2.375... that's nice!Quote:
Originally posted by taman
Any body know where the vcore failsafe is set on A7N8X (rev 2.0) Series MOBO's is set at. I recently did the Vcore volt mod w//excellent results: FROM p95 Stable at 2.26ish to rock solid at 2.375 and still testing/pushing.
I've heard it is set at 2.1 but I get no shutdown at 2.15, have seen posts on other forums stating running Vcore at >2.2.
Where is it set(rougly) and does any when have a clue as to disabling or upping it.
Im still semi-confident that what I described here will work, although I havent had the oppotunity to test it out myself.
http://www.xtremesystems.org/forums/...threadid=20943