EPoX 8KDA3+ Vmods (Dimm + Vcore)

[Verdict]

i get epox tomorrow, lets see what i can do with that

i drive some test C02 with K8N and 3400+
i got Superpi 8m : 5:23 and 1m : 29sec

lets see how epox works with that prosessor

[eclypse]

I have a feeling this board needs a chipset mod as well.. Anyone?

[Verdict]

Tell me what is the best bios for that mobo, i test newest bios from epox site and it really SUX, then i but first one back

[mesyn191]

Hi guys I'm a total soldering nOOb, but looking at the pics @ voidyourwarranty.nl the spots to solder look pretty straight forward except for the vCore one. I can see where one of the wires is soldered to the chip and goes to the pot, but then there is another wire that comes off the pot and goes somewhere else but you can't see where in the pic.

Anybody happen to know where that other wire goes, or is this just one of those things that you're supposed to know if you actually know something about electronics (I don't, I just want to see how high I can get my chip)?

Any other tips on modding this motherboard would be greatly appreciated.

Thanks!

[morbidj]

Originally posted by Verdict
i get epox tomorrow, lets see what i can do with that

i drive some test C02 with K8N and 3400+
i got Superpi 8m : 5:23 and 1m : 29sec

lets see how epox works with that prosessor

It doesnt need a mod it tracks automatically.

I like 6-14 bios the most.

The other wire goes to a grounding location such as a mounting hole.

[eclypse]

Originally posted by mesyn191
Hi guys I'm a total soldering nOOb, but looking at the pics @ voidyourwarranty.nl the spots to solder look pretty straight forward except for the vCore one. I can see where one of the wires is soldered to the chip and goes to the pot, but then there is another wire that comes off the pot and goes somewhere else but you can't see where in the pic.

Anybody happen to know where that other wire goes, or is this just one of those things that you're supposed to know if you actually know something about electronics (I don't, I just want to see how high I can get my chip)?

Any other tips on modding this motherboard would be greatly appreciated.

Thanks!

The other wire goes to ground.. So one end goes to the chip and the other goes to ground.. Thats usually the norm.

Ground can be a screw hole or fan header.. I like to use the ground pin on a fan header using a fan header plug.. The black wire on the fan header plug is ground BTW.. This way if something goes wrong or your going to flash the bios or dont want to leave alot of evidence of a mod done you can just unplug it and it will dissable to mod..

Just find a old fan that has the female 3 prong header.. Cut it off and splice the black wire to the wire your going to use on the VR as ground and plug it in and your good to go.

Just make sure not to turn the vr too fast when your in the bios or your blow either the CPU (vcore mod) or the memory + CPU (vdimm mod)

I like to make the adjustment with the system turned off.. Also dont unplug the mod ofcourse while the system is runing hehe.

Good luck!

[Verdict]

and i can find that bios from ?????????

[fxr91]

Here ya go
LINK

[Verdict]

Originally posted by Verdict
and i can find that bios from ?????????

thanx

[mesyn191]

eclypse: thanks for the help, now I just gotta get those pots and practice soldering on some junk I have lying around the house.

PS: you can get those pots from Radio Shack right? Or would I have to order them online?

[eclypse]

You can try radio shack but mine dont like to stock the right ones that are needed like the 50K.. Just mainly 1k-10K.

The 15 turn long blue 1/4 watt 50K is best.. Just make sure to first set the vr to 50k "MAX" before hooking it up. THat way theres no resistance on it and its like having it turned off so you dont over due it on first power up.. Then i guess while your in the bios turn it very smooth and slowly till ya get it right where ya want.

Though i'm telling ya to make sure the vcore is level before you do so.. this board is crazy sometimes where you can set it to 1.5v and it can end up at 1.3v on next boot so.. make sure its at whatever ya set it at on next boot before you start adjusting the vr.. or ya right the prob of haing the voltage really jumping 0.2+ on ya on the following cold boot.


Oh heh.. yeah if ya want the good 50K vr buy them online at http://www.circuitspecialists.com/level.itml/icOid/6945

[mesyn191]

Hey thanks for the link, that makes things much easier.

Though i'm telling ya to make sure the vcore is level before you do so.. this board is crazy sometimes where you can set it to 1.5v and it can end up at 1.3v on next boot so.. make sure its at whatever ya set it at on next boot before you start adjusting the vr.. or ya right the prob of haing the voltage really jumping 0.2+ on ya on the following cold boot.

I seem to be one of the lucky ones and have a motherboard where the motherboard doesn't vary that much, only by about -/+ .1 or so. Of course it could also be like that because I've overvolted my +3.3v, +5v, and +12v lines (I have a Antec Tru Control 550w PSU) I really wouldn't know for sure though. I would set the voltage to the lowest possible in the BIOS before starting to use the pot though right?

Another probably stupid question for you:

I can't really tell in most of the pics as most of them aren't closeups, but when soldering the wire to one of the chips would you first desolder the post that you wanted, lift it up off the motherboard and then solder the wire to it or can it still be attached to the wire and the motherboard at the same time?

Thanks for the help man !

[esoteradactyl]

I can't really tell in most of the pics as most of them aren't closeups, but when soldering the wire to one of the chips would you first desolder the post that you wanted, lift it up off the motherboard and then solder the wire to it or can it still be attached to the wire and the motherboard at the same time?

just solder directly to the leg no need to desolder anything.

[Bulldog20]

Originally posted by Jeff
The two mounting holes for the mobo align themselves right down the center of the northbridge. Someone creative(unlike myself) could probably figure something out using those too.

Lo, I only scanned the thread, but did you get your Mobile going on this mobo?
Just wondered as I just booted mine

Cheers

[morbidj]

You just booted your mobile? As far as I know your the only person that may be successful with this board and a mobile, Jeff posted that his was incompatable and he sold off his mobile. Another fella posted also that his incompatable. Please list your details such as your board revision, Processor type and model #, and bios revision.

[Jeff]

I could get it working if I used a desktop chip to set it the multiplier. "Auto" wouldn't work for me and didn't allow my setup to get past the "C9" BIOS code.

The bummer for me happened when I had the mobile running and I pushed too hard. The BIOS would reset and I'd have to swap back my desktop CPU to get the mobile working again. That's just not fun when your trying to have fun.

[Bulldog20]

Lo, mines ok, well had to vmod the vcore because it defaulted to high multi/low vcore = x9/ 0.9v. Volt mod to 1.3v and voila boots.

Only problem so far is I can't get passed 270 FSB, the PCI doesn't seem to be locked ? I thought the Epox had PCI lock?

Edit, this board is weird

Cheers

[Bulldog20]

Lo, my motherboard is v1.0, not sure on the chip, it's alittle tied up atm

I did the same on a K8NNXP, just had to mod the vcore before it would boot. I posted a thread in the vapochill forum.
http://forum.vapochill.com/showthread.php?threadid=7052
Cheers

[Bulldog20]

Well goto the 300 barrier, it seems to be stable, 1 more mhz and it locks.

[kakaroto]

Does anyone know wich mosfet i can read the Vcore?

The 2 mosfets aroud the ATX connec, gives me strange vcore.

[Bulldog20]

Lo, I measure mine on one of the coils. The leg nearest the I/O panel. Top left, can't miss them.

Cheers

[kakaroto]

Originally posted by Bulldog20
Lo, I measure mine on one of the coils. The leg nearest the I/O panel. Top left, can't miss them.

Cheers

thxn, now ive got better measering. 1.59v instead of 1.48v

This only cause i picked another ground (probe).
I picked a molex 4 pin for getting my ground. There are 2 black. (GND) Two ground give me 2 different measering.

Why...

[blinky]

Originally posted by Bulldog20
Lo, mines ok, well had to vmod the vcore because it defaulted to high multi/low vcore = x9/ 0.9v. Volt mod to 1.3v and voila boots.

Only problem so far is I can't get passed 270 FSB, the PCI doesn't seem to be locked ? I thought the Epox had PCI lock?

Edit, this board is weird

Cheers

wait so did it not boot initially and did boot with a vcore mod????

or it booted out of the box except with 0.9v vcore????


how come this guy can get mobiles working and no one else can???

[Bulldog20]

Yes m8, just a vcore mod. So out of the box with a vcore mod. I posted this on my forum weeks ago.

"how come this guy can get mobiles working and no one else can?? "

What does that mean? Not sure if there is a complement hidden in there somewhere I have been clocking for a little while

Cheers

[aldamon]

Originally posted by Bulldog20
Lo, I measure mine on one of the coils. The leg nearest the I/O panel. Top left, can't miss them.

Cheers

When I measure there, I get 1.3V when it's set to 1.7 in the BIOS. That can't be good.