Hi,

I have obtained an image of a vr based vcore mod for the A8N SLI and was hoping to find some more information on it before attempting it myself:



Has anyone attempted this mod and/or know it to work properly? Can anyone tell me what the vcore would be set to at full resistance?

I have no info other than the image itself and am worried that attempting it without assurance that it works and without knowing the voltage ranges it operates at is going to cause me to lose either my mobo, cpu or both :shock2:

Any help gratefully appreciated!

[edit] forgot to mention that I'll be modding an a8n-sli premium

that would rocks if someone has the lead

[Shamino]

hi i've done it it works great, and at full resistance its only a tinnnneeee bit more volts.... so go right ahead!

Hi Shamino, nice to get a response from someone who's tried this mod!

When you say "at full resistance its only a tinnnneeee bit more volts" - do you mean a tiny bit more than the vcore set in bios? Can I take that to mean that vcore is still adjustable in bios after the mod but increased by the amount set by the VR? If so then it sounds like the perfect vcore mod for the board!

One more thing - I can't tell from the image which board this mod was for (vanilla, deluxe or premium) - do you think it's safe to assume that all 3 boards will react in the same way with the mod?

[Shamino]

Originally Posted by gpcola

Hi Shamino, nice to get a response from someone who's tried this mod!

When you say "at full resistance its only a tinnnneeee bit more volts" - do you mean a tiny bit more than the vcore set in bios? Can I take that to mean that vcore is still adjustable in bios after the mod but increased by the amount set by the VR? If so then it sounds like the perfect vcore mod for the board!

One more thing - I can't tell from the image which board this mod was for (vanilla, deluxe or premium) - do you think it's safe to assume that all 3 boards will react in the same way with the mod?

yes still adjustable just offset by that much
yes safe for all versions

:jump4: :jump4: :jump4: :jump4:


thank you!

at the max. voltage my board don't start but on the fly I can choose my Vcore to 1,85

I have a a8n-sli and its works the vmod very nice

Well I finally got around to trying this mod yesterday and couldn't get my board to post afterwards. Lights came on but nothing would happen - total silence (bar the fans) and no display.

I disconnected the mod and it then posted as normal so I'm stumped as to what I did wrong here. I triple checked the connections were all as they should have been...

Anyone have any ideas as to where I may have gone wrong?

I added my watercooling loop yesterday at the same time and was hoping to be able to increase my clocks with more volts but it's looking like it may not happen after all

I'm about to do this mod. But whats the differene between the mod in the first pic and this one:
Both are for Chipset voltage

http://www.vr-zone.com.sg/?i=1624&s=1,about

[Shamino]

Originally Posted by Zenjirou

I'm about to do this mod. But whats the differene between the mod in the first pic and this one:
Both are for Chipset voltage

the pic u posted is for the nf4 chipset, while the original one is for cpu core voltage.

could someone please get a pic of the v-core reading points?


thx in advance.


[]'s

[yantronic]

Originally Posted by Deco

could someone please get a pic of the v-core reading points?


thx in advance.


[]'s

Try measuring the low ESR capacitors and the inductors around the area. That should give a rough value of what you are applying.

Just watch the temperatures.

Hi guys am just about to perform both the vcore and the chipset mod (not at the same time) for my Asus A8N SLI Deluxe cause am having problems getting a stable overclock past 2.8 GHz. Dug out all the stuff I need : soldering iron, solder, variable resistors, Multimeter and so on, all I need now is the courage.

The real reason i'm here is because I'm hoping some one can give me a hand with the theory behind voltage regulators and this mod. I hate just doing things cause someone told me it would work, I love to have an understanding (even f it's only basic) of what i'm doing and what i'm going to achieve. Now I did some basic electronics in my first year at uni, but it was just that, very basic and most of it was digital not analouge. Now just correct me or slate me if i'm totally wrong but does the picture i've crudely drawn give a very simple outline of a voltage regulator and the vcore mod? (the vcore mod being shown witht eh dotted lines).



Any help would be greatly appreciated
Cheers
Chris

[yantronic]

Just go ahead and take care doing the mod.

The workings isn't completely correct.

The Vcc feeds a chip that drives the MOSFET (that has the Vin).

The Vin in the picture should have been VFB.