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EPoX MotherBoards EPoX Intel and AMD Motherboards.


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  #1 (permalink)  
Old 27th November, 2002, 03:11 PM
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[8K9A] Vcore mod is here!!!

I searched my @ss of finding this mod.. No one had done it. For some reason I don't understand this board only allows 1,95V on the core. Even if you set 2,00V in the BIOS it still gives 1,95V. Now I bought an Epox for the Vcore and the thing gives 1,95V only So now I still had to do a vmod

Epox: Why is this board stuck on 1,95V?? The 8K9A2+ has 2,2V. Any reason for this?

Twice I almost killed the board, but I can tell you it's working now!!!

I soldered a 250K pot between Pin 3 and Pin 17 and the vcore goes up when I turn it halfway. I've had 2,2V whit no problems.

When you do this mod be VERY casrefull with the pot. 250K is too big!!! It wil FLY up! So turn VERY slowly. Touching te pot almost makes it go up. 100K would be more safe for turning. I will take the 250K off and measure it so I can put a smaller one on.

Happy moddin'!!

Edit:
The chip's code is: "IRU3055" located between the PS/2 ports and the socket (no pics, sorry).
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Old 27th November, 2002, 04:11 PM
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The 8K9A2+ only goes up to 2v . Which reads 1.98v on my board
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Old 27th November, 2002, 05:46 PM
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Quote:
Originally posted by Mickey Padge
The 8K9A2+ only goes up to 2v . Which reads 1.98v on my board
Ah..I thought it went higher.. Wel, now you know what to do about it :-D
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Old 27th November, 2002, 06:09 PM
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I have done volt mods before , but never without pictures and a complete guide etc...
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Old 27th November, 2002, 08:34 PM
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Fewture, are u pumping up a Tbred A or B because i would be loathe to do the mod on my Tbred B 2400 because, from the forums, i'm led to believe Tbred B's don't like more than 2.0v. Hope i'm wrong of course. By the way are you sure of your resistor (pot) value? It seems a bit high.
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Old 27th November, 2002, 08:53 PM
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newhit, a pt is basically a variable resister, 250Kohm is its maximum resistance I assume.
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Old 27th November, 2002, 10:26 PM
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I know that. But his overall value is 250k. If he was to use a lesser value then the sudden increase over the whole range will be reduced. I was wondering if the OVERALL value was too big.
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Old 28th November, 2002, 05:34 PM
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Ok, update:

Ik took the 250K VR off and measured the resistance. It was only 1K Ohm!. So a 250K VR is serious overkill, but you must understand I used a VR that big for testing. A VR too small would have killed my chip
So 5K should do..maybe 10K to be really safe.

Don't forget: 1K gives 2,2V when BIOS is @ 2,00V!!

I use this with a Tbred A week 35 (2154Mhz max). Tbred A or Tbred B, be carefull over 2V. YES, they do die from 2,2V. I have seen 2 Tbred A's both on water. 1 dead, 1 crippled. I use 2,05V and 2,2 for benching. All this @ 33C to 39C. Make sure temps are low.

http://www.fewture.cistron.nl/img/8K9Avmod.JPG
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Old 28th November, 2002, 05:55 PM
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I think you answered your own question.

More than 2v means your an extreme overclocker, and a Vmodd should be second nature.

if your not willing to kill your CPU or mobo overclocking then you dont need more than 2v do you.....
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Old 28th November, 2002, 06:05 PM
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Quote:
Originally posted by Holst
I think you answered your own question.

More than 2v means your an extreme overclocker, and a Vmodd should be second nature.

if your not willing to kill your CPU or mobo overclocking then you dont need more than 2v do you.....
Jep, if you don't want a risc..don't go there..
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Old 28th November, 2002, 10:15 PM
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Still nice work! I'd add it to our FAQ... but as Holst mentioned most want to survive their mods until the new EPoX is out ":O}
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Old 29th November, 2002, 05:43 PM
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Quote:
Originally posted by Daniel ~
Still nice work! I'd add it to our FAQ... but as Holst mentioned most want to survive their mods until the new EPoX is out ":O}
Tnx! :-D Nice to be of some help
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Old 29th November, 2002, 09:00 PM
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When folks come offering new solutions...Hey, we don't get to mad about that! ":O}
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Old 29th November, 2002, 09:29 PM
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Quote:
Originally posted by Daniel ~
When folks come offering new solutions...Hey, we don't get to mad about that! ":O}


The 1K resistor mod has been done and confirmed. The guy got 2,0V @ 1,85 in bios. Close enough to 2,2V I think.. A VR is still better I think. More freedom.
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Old 19th December, 2002, 02:45 AM
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Another happy customer here. I soldered ~1120Ohms across pins 3 and 17 for exactly a 0.1v gain.

Thanks again Fewture!!!
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