I spend some time searching for details on how to mod my KT7E mobo, but there is a complete lack of information. Well, I was able to do it with the help of a good friend (thanks, Mark!). Just follow these instructions on moding the KT7. Instead of grounding it out on the mosfet I used the mounting screw by the AGP card for safety reasons. Solder a variable resistor with a fixed one to get about 25kohms and use this for the mod. You may then lower the resistance to about 21-22kohms to reach a CPU voltage of over 2v. I hope this helps someone out there.
Volt moding the KT7E
- Thread starter Richardito
- Start date
This is kind of old news but here are my instructions for boards that use the Intersil HIP6301. I have been in contact with hundreds of people that have had success with this method.
KR7 specifics:
The Pin 7 trimmer should be the only one needed. You may want to use a 100k trimmer as with the K7G.
K7G specifics:
You may want to use a 100k pot between Pin 7 and ground. This will allow you to return the board to stock voltage. A 47k pot will cause the board to boot at around 2.0 volts.
The mod is the same as the KT7 series except for the change in trimmer value for Pin 7. With 47k between ground and Pin 7, the board will boot at about 2 volts. Using a 100k trimmer allows the board to boot at normal voltage and obviously makes it possible to reverse the mod by dialing the Pin 7 and Pin 10 trimmers back to full resistance.
KT7 series, KK266, etc:
Solder wires to Pin 7 and Pin 10 of the IC that controls the voltage to the CPU. Put a 47k trimmer (49 cents at Radio Shack part # 271-283) between Pin 10 and ground. Put a 100k trimmer (271-284) between Pin 7 and ground. You can add a 1k trimmer (271-280) in series with the 100k trimmer if you would like to make it easier to fine tune the voltage. Use a spade lug or loop under a motherboard mounting screw for your ground connection. For convenience I suggest you mount the trimmers on a piece of breadboard and secure it to your motherboard tray with Velcro.
Pin 7 controls the voltage, Pin 10 controls maximum voltage threshold. Turn the trimmers to full resistance boot your PC and start VIA Hardware Monitor. Set the polling interval to 2 seconds and slowly dial up the Pin 7 trimmer until the screen blanks. Your PC will probably reboot when the screen blanks. Note the voltage and back it off a tad while the computer reboots. Then dial up the Pin 10 trimmer until your screen blanks and back it off a tad. Go back into VIA Hardware Monitor and dial the Pin 7 trimmer up to 2.3 volts. You may be able to go higher but I don?t recommend it.
Caution this will stress your cooling. Be careful or your CPU could end up a crispy critter. I also suggest buying a third hand device from Radio Shack to hold a pre-tinned wire to the IC leg while you solder. The magnifying glass on the third had will come in handy too. Get in and out fast so you don?t toast the IC. Lay off the caffeine and if you are of age, have a beer a half hour before soldering to steady your hands.
Be sure to tie your wires down to the board. A dollop of five minute epoxy works well for this. After doing several boards, I finally screwed one up. The mod went fine but I snagged the wire to Pin 10 on the end of my workbench and ripped the IC pin right off the board.
KR7 specifics:
The Pin 7 trimmer should be the only one needed. You may want to use a 100k trimmer as with the K7G.
K7G specifics:
You may want to use a 100k pot between Pin 7 and ground. This will allow you to return the board to stock voltage. A 47k pot will cause the board to boot at around 2.0 volts.
The mod is the same as the KT7 series except for the change in trimmer value for Pin 7. With 47k between ground and Pin 7, the board will boot at about 2 volts. Using a 100k trimmer allows the board to boot at normal voltage and obviously makes it possible to reverse the mod by dialing the Pin 7 and Pin 10 trimmers back to full resistance.
KT7 series, KK266, etc:
Solder wires to Pin 7 and Pin 10 of the IC that controls the voltage to the CPU. Put a 47k trimmer (49 cents at Radio Shack part # 271-283) between Pin 10 and ground. Put a 100k trimmer (271-284) between Pin 7 and ground. You can add a 1k trimmer (271-280) in series with the 100k trimmer if you would like to make it easier to fine tune the voltage. Use a spade lug or loop under a motherboard mounting screw for your ground connection. For convenience I suggest you mount the trimmers on a piece of breadboard and secure it to your motherboard tray with Velcro.
Pin 7 controls the voltage, Pin 10 controls maximum voltage threshold. Turn the trimmers to full resistance boot your PC and start VIA Hardware Monitor. Set the polling interval to 2 seconds and slowly dial up the Pin 7 trimmer until the screen blanks. Your PC will probably reboot when the screen blanks. Note the voltage and back it off a tad while the computer reboots. Then dial up the Pin 10 trimmer until your screen blanks and back it off a tad. Go back into VIA Hardware Monitor and dial the Pin 7 trimmer up to 2.3 volts. You may be able to go higher but I don?t recommend it.
Caution this will stress your cooling. Be careful or your CPU could end up a crispy critter. I also suggest buying a third hand device from Radio Shack to hold a pre-tinned wire to the IC leg while you solder. The magnifying glass on the third had will come in handy too. Get in and out fast so you don?t toast the IC. Lay off the caffeine and if you are of age, have a beer a half hour before soldering to steady your hands.
Be sure to tie your wires down to the board. A dollop of five minute epoxy works well for this. After doing several boards, I finally screwed one up. The mod went fine but I snagged the wire to Pin 10 on the end of my workbench and ripped the IC pin right off the board.
If you really want to get technical you can read the Tech Sheet for the voltage controller. My post is meant as a guide for people needing the information for the KT7E, since no information is available online as of today. Also some of the other sites for the KT7 volt mod are unusable since ABIT installed some extra components on to the soldering spots. It is also recommended not to solder directly on the pins (except the edge ones) because of the dificulty and the real danger of messing up the chip. Enjoy the extra juice! 
There are a bunch of volt mod articles on the KT7 series on the net. Do a Google search. Soldering to the IC pins has been the preferred method for the majority of the folks I have walked through the mod. I have seen a lot more folks pull a pad off the board using the VR Zone method than damage an IC by soldering to it. Also the VR Zone recommends using a mosfet leg as a ground connection. As Richardito pointed out, using an alternative ground is a better solution. If you don't want to solder to the pins, the Pomona Grabbers can be used. You can check them out in the mother of all volt mod threads. While I have not used the Pomona Grabbers on any of my boards, I have given a couple of prewired volt mods using them to local computer store employees with soldering iron phobia. They work find.
What Abit has changed on the newer (non-KT7,KT7A, KT7E) is the maximum voltage limit controlled by Pin 10 (Vsen). A trimmer there is no longer needed on many boards to go past 2.1 volts. In addition, many of the newer boards require more than 50k between Pin 7 (FB) and ground to be able to boot at stock voltages without removing the mod. The use of trimmers instead of resistors is recommended for all volt mods using the HIP6301 as the tolerances of parts on the motherboards varies and often requires a different value for the desired results.
I had a long talk with one of the engineers at Intersil (they make the HIP6301) about this and the common 5 volt mod. While this mod is safe, the engineer felt the 5 volt mod would cause problems in the long term.
What Abit has changed on the newer (non-KT7,KT7A, KT7E) is the maximum voltage limit controlled by Pin 10 (Vsen). A trimmer there is no longer needed on many boards to go past 2.1 volts. In addition, many of the newer boards require more than 50k between Pin 7 (FB) and ground to be able to boot at stock voltages without removing the mod. The use of trimmers instead of resistors is recommended for all volt mods using the HIP6301 as the tolerances of parts on the motherboards varies and often requires a different value for the desired results.
I had a long talk with one of the engineers at Intersil (they make the HIP6301) about this and the common 5 volt mod. While this mod is safe, the engineer felt the 5 volt mod would cause problems in the long term.
<< There are a bunch of volt mod articles on the KT7 series on the net. Do a Google search. >>
I've done way more than Goodle searches when gathering information. Again, let me repeat myself: There are no ABIT KT7E volt mods in the web. Even your link says nothing about the KT7E board. Please carefully read the post and don't jump to your own conclusions about the subject at hand. You seem to keep missing the whole point of the post, moding this board is different than moding the KT7. You are going on a totally unrelated tangent. The VR-Zone article suggest using a 13-15 kOhm resistor for the KT7, but for the KT7E you need a 19-22kOhm resistor. That is the point of the post, not re-explaining how to mod the KT7 (everyone and their brother knows how to do that).
--> Elvis has left the building...
All the KT7E needs is the same 47k trimmer used to mod the rest of the KT7 series. It's not rocket science.
<< All the KT7E needs is the same 47k trimmer used to mod the rest of the KT7 series. It's not rocket science.
>>Wrong... Again, you are missing the point. How can I be any clearer in my simple statement? The mod isn't performed the same way. Please don't waste our time, some people are here to actually learn and not to engage in useless discussions. If you put a 47kOhms resistor in the mod I linked to you will get no boot from the KT7E. Useless discussions only clutter this forum just like spam mail clutters the internet. Haven't I said something similar before?
(BTW, did you had a long chat with a NASA rocket scientist too?)--> I'm sorry, Elvis is long gone.
"and it would be better to get a variable resistor instead". From your article.
I actually believe it is some kind of sense feedback loop to stabilize the voltage. You are fooling the chip into giving more voltage by changing the voltage dropped on the resistor between Vsen(sense) and FB(feedback) by lowering its value. Hence it is possible to alter the voltage from both places by altering the voltages dropped at those pins. This is why there are two mods for that chip available. One that gives mild increases, and the other more significant. I actually think when both mods are done it is possible for even a bit more.
I can't imagine what they would of done differently with the KT7E if its using the same chip. Maybe a slightly different value of sense resistor, which means you need to adjust the trimmer a little more or less. A trim pot of 47k or 100k (for more ability to return it completely to nominal), can still be set to whatever static resistor value that your particular mod suggests and you can do so while watching it in bios. I believe that the optimal value varies from mod to mod and using a static resistor may prove less than satisfactory. I also personally found it easy for my soldering skills to attach to the pin on the chip itself. I think that is to each his own, since they are electrically the same point.
........................edit..........................
If what you were really trying to say is for your KT7E, the value of the fixed resistor that you used was 21-22k then that is fine (which btw that was the same resistor value my KT7A used) but the mod is exactly the same as it always has been. It is just better done with pots instead of fixed resistors.
I actually believe it is some kind of sense feedback loop to stabilize the voltage. You are fooling the chip into giving more voltage by changing the voltage dropped on the resistor between Vsen(sense) and FB(feedback) by lowering its value. Hence it is possible to alter the voltage from both places by altering the voltages dropped at those pins. This is why there are two mods for that chip available. One that gives mild increases, and the other more significant. I actually think when both mods are done it is possible for even a bit more.
I can't imagine what they would of done differently with the KT7E if its using the same chip. Maybe a slightly different value of sense resistor, which means you need to adjust the trimmer a little more or less. A trim pot of 47k or 100k (for more ability to return it completely to nominal), can still be set to whatever static resistor value that your particular mod suggests and you can do so while watching it in bios. I believe that the optimal value varies from mod to mod and using a static resistor may prove less than satisfactory. I also personally found it easy for my soldering skills to attach to the pin on the chip itself. I think that is to each his own, since they are electrically the same point.
........................edit..........................
If what you were really trying to say is for your KT7E, the value of the fixed resistor that you used was 21-22k then that is fine (which btw that was the same resistor value my KT7A used) but the mod is exactly the same as it always has been. It is just better done with pots instead of fixed resistors.
<< Wrong... Again, you are missing the point. How can I be any clearer in my simple statement? The mod isn't performed the same way. Please don't waste our time, some people are here to actually learn and not to engage in useless discussions. If you put a 47kOhms resistor in the mod I linked to you will get no boot from the KT7E. Useless discussions only clutter this forum just like spam mail clutters the internet. Haven't I said something similar before? (BTW, did you had a long chat with a NASA rocket scientist too?) >>
Richardido ? You need to do some research on the HIP6301 or read my first post. All the KT7 series use the same mod. Most of them require between 20k and 30k between FB and ground. Very few boards will boot with the low resistance recommended in the article you referenced. The board will boot just fine with 47k between FB and ground. Once you are in Windows, using Mother Board Monitor or Via Hardware Monitor you reduce the resistance until you get the desired voltage. All this does is fool the feed back loop. It's when you have too little resistance between FB and ground the board won?t boot.
BTW, I do have some friends at NASA.
<< I can't imagine what they would of done differently with the KT7E if its using the same chip. Maybe a slightly different value of sense resistor, which means you need to adjust the trimmer a little more or less. >>
If you read my second post you would see that "Also some of the other sites for the KT7 volt mod are unusable since ABIT installed some extra components on to the soldering spots." The modification can't be performed in the same way, there are diferences.
<< The board will boot just fine with 47k between FB and ground. Once you are in Windows, using Mother Board Monitor or Via Hardware Monitor you reduce the resistance until you get the desired voltage. >>
No, the board won't boot with a 47KOhms resistor. Again, I already said that. Also, the best way to adjust the voltage is to use the BIOS health screen. This way you don't have to worry about the system's stability and ability to load Windows. If you haven't done this mod on a KT7E then IMHO you don't have nothing to add to this thread.
BTW, you seem to have a lot of free time...
<<
<< I can't imagine what they would of done differently with the KT7E if its using the same chip. Maybe a slightly different value of sense resistor, which means you need to adjust the trimmer a little more or less. >>
If you read my second post you would see that "Also some of the other sites for the KT7 volt mod are unusable since ABIT installed some extra components on to the soldering spots." The modification can't be performed in the same way, there are diferences. >>
Richardito - How many KT7 series boards have you modified?
<< Richardito - How many KT7 series boards have you modified? >>
WT , this has nothing to do with the post... I would apreciate if people just stick with the subject. Thank you. (wow, you reply really fast!)
<<
<< The board will boot just fine with 47k between FB and ground. Once you are in Windows, using Mother Board Monitor or Via Hardware Monitor you reduce the resistance until you get the desired voltage. >>
No, the board won't boot with a 47KOhms resistor. Again, I already said that. Also, the best way to adjust the voltage is to use the BIOS health screen. This way you don't have to worry about the system's stability and ability to load Windows. If you haven't done this mod on a KT7E then IMHO you don't have nothing to add to this thread.
BTW, you seem to have a lot of free time... >>
Richardito - You are dead wrong on this, the KT7E will boot fine with 47k between FB and ground. It's when the resistance between FB and ground is too low that the board won't boot. With a full 47k, the board will boot at stock voltage. There is no stability problem in adjusting the voltage in Windows. A very few KT7 series boards have stabilty problems between 2.08 and 2.1 Vcore with the stage one volt mod due to the Vsen kicking in too soon. The solution is to do the stage to mod.
I have done a couple of KT7Es, and too many KT7 & KT7As to count. I have also walked a whole bunch of folks through this mod on various forums over the last year. It's time for you to grow up and stop the personal attacks.
<< It's time for you to grow up and stop the personal attacks. >>
Who is attacking who? You are the one replying to my posts here.
<<
<< Richardito - How many KT7 series boards have you modified? >>
WT , this has nothing to do with the post... I would apreciate if people just stick with the subject. Thank you. (wow, you reply really fast!) >>
This has everything to do with the post as you obviously don't have enough experience with these boards.
<< This has everything to do with the post as you obviously don't have enough experience with these boards. >>
Whatever... Stop your obsesion with me, you are clearly trying to attack me in retaliation for exposing you in the past. Remember the thread(s)? You even got upset at my faces
. Trying to reason with you is as easy as traveling to Uranus. Just look at this thread...TRENDING THREADS
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