1.4 @ 1.533

[Menardsguy]

right now i'm running my 1.4 @ 1.533 (11.5X133, 3.33, 1.92)... Do I need more voltage to go up to 1.6? I tried to run @ 12X133 with the same voltage, and my computer wouldn't even start up...had to reset cmos... My temps are
idle: CPU 121 M/B 78
Full: CPU 131 M/B 80

I'm gonna have watercooling soon!

[Silver]

Originally posted by Menardsguy
right now i'm running my 1.4 @ 1.533 (11.5X133, 3.33, 1.92)... Do I need more voltage to go up to 1.6? I tried to run @ 12X133 with the same voltage, and my computer wouldn't even start up...had to reset cmos... My temps are
idle: CPU 121 M/B 78
Full: CPU 131 M/B 80

I'm gonna have watercooling soon!

Tell me that those are not degrees celcius. If they are you had better back it off in a HURRY! Those are by far way over what you are looking for and would explain why the board is not stable. Just as a guide: 45c and below=great, 45-50c=need to look for better cooling, 50c and above=not on my machine. This is not to say that I have not been up to as high as 54c but it did not stay there long and was for testing only. First and foremost let us know if those are in fact temps. If they are and are in degrees celcius then back off the vcore voltage NOW. After that let us know what kind of cooling and brand you are using.

[Menardsguy]

No... the temps are not celcius
Celcius temps are: 49C idle 55C Full
These are too high? Accourding to MBprobe 60C is a warning and 64C is critical by default. I've beeen running at these temps for about 2 months now (at 1.533)... perfectly stable. I don't think i will increase my clock speed until i get my koolance full tower though.

Would you reccomend a voltage mod for my mb? Was it hard to do?

[Silver]

I surely would not do any voltage mod until I got it to run cooler. The voltage mod is only going to allow you to overcome heat with voltage and create even more heat. First look at better cooling. I have had great results with all the chips I have tried (even difficult ones) with water cooling and a bong. The vmod just let me push harder. The voltage on your ram is a little low. I have to run 3.7 to get all stable on the KT7A. You might try this to get the board more stable. What PSU are you using? I personally would back down the voltage and speed until better cooling is in place. 50c is the max I would run under load and you are idling there. I realize that some will say that you can run higher temps but.....not I. As the cooling improves so too will the speeds. You might try running a program such as v-cool until you have better cooling installed. I run it regularly. Are you using Arctic Silver thermal paste? This will give you a couple more degrees of cooling.

[Menardsguy]

psu=antec pp-403x (400 watt)

[Silver]

Originally posted by Menardsguy
psu=antec pp-403x (400 watt)

Exact same one I am using so power will not be a problem. Get the cooling and you should be able to get it up over 1.7 with out much trouble.

[Menardsguy]

Where can I get info about voltage mods for the kt7a?

[Silver]

BTW, I managed to get in at 1.8 last night however it was not very stable. Ask around and the guys will tell you that my voltage is high. Even so when I got in I never got over 45c. Under full load for five hours yesterday at 1.774 at 2.33v the cpu never exceeded 44c and in fact at the end of the run was at 42c. This was running in the background while I surfed during part of the time. Cooling first.....:)

[LutaWicasa]

Originally posted by Menardsguy
Where can I get info about voltage mods for the kt7a?

In AMD mobos there is a sticky called "Get your voltage mods here."

[Silver]

Originally posted by Menardsguy
Where can I get info about voltage mods for the kt7a?

This is the one I used on this board.

www.extremeoverclocking.com/articles/howto/Extreme_Voltage_Mod_2.html

Sorry but do not know how to place a link.

Need descent soldiering skills. I like this one as I can adjust the ranges easily.

Darn, look at that, it automatically enters the link...cool

[Menardsguy]

thanks for the help

[Silver]

Originally posted by Menardsguy
thanks for the help

Thats what all do here. :)

[Menardsguy]

i just did the voltage mod, but i can't get it to boot up with the resisters in... It works fine when I take them out, but when I put them in it doesn't boot. I was wondering what resisters you used. Right now I only tried two 10K.

[The Coolest]

OK, is it a AMD Athlon XP or Thunderbird CPU, I think that if its the XP u should lower speed/vcore... if its T-Bird its not that bad. I run same temps at summer time and perfectly stable, when PSU doesn't give up! :mad: I HATE MY PSU :mad:

[Menardsguy]

It's a Thunderbird. Forget the earlier posts... All I want to know is about the resisters... I am getting my mb ready for my koolance case that should arrive someday this week :D .

the voltage mod i used
http://www.extremeoverclocking.com/articles/howto/Extreme_Voltage_Mod_1.html

[Silver]

Originally posted by Menardsguy
It's a Thunderbird. Forget the earlier posts... All I want to know is about the resisters... I am getting my mb ready for my koolance case that should arrive someday this week :D .

the voltage mod i used
http://www.extremeoverclocking.com/articles/howto/Extreme_Voltage_Mod_1.html

Did you do both mods? One mod was to bypass the regulator or it defaults to about 2.1 and the other is to set the max amount of voltage. Did you do both?

[Menardsguy]

yeah... I am using two resisters, four wires...

[Menardsguy]

I'm just not sure what resisters to put in... Also I was wondering if there was any settings in the bios that I should disable/enable for stability/performance.

[Silver]

Go to Radio shack and get a 5.6k ohm resistor (pack of 5). This gets plugged into the wires you soldered on leg ten of the chip. This will keep the voltage regulator from kicking out at 2.14 volts. I first tested this with a 22kohm on the other wire and placed no resistor on the wires soldered to leg ten. Of course this gave me up to 2.14v but still left the board protected at the factory max overvolt. So I got to play with voltages up to 2.14. On the other wire you soldered I ultimately used a 10k ohm 1/4 watt resistor.

Leg ten 5.6k

Other wire 10K

This gives me voltage up to 2.35. The nice thing about this is that just change the 10k to a lower value and the voltage goes up. Did'nt need to do this though as cooling is really borderline at 2.3.

To undo it all just pull the resistors. Should you still have a problem with this, pick up a pack of 22k 1/4 watt resistors and plug one first into one wire set and if it does not come on then plug it into the other and try it. This is the wire wwhere you will put the 10k. Remember to use some of that shrink on the legs so you don't fry anything. You will have to go into bios and set it (low at first) and let the computer boot. Then just use via to check the voltage and write it down. do this for each step so you know what your voltages are.:)

T-bird 1.4 will need 2.3 max voltage (and lots of cooling)
xp1600 does'nt respond well after 2.2v

[Menardsguy]

Thanks Silver... I found out what the problem was... The stupid radioshack guy who helped me find the 10K ohm resisters actually gave me 10 ohm resisters instead... I went back and bought packs of 4.7k ohm and 10k omh adn stuck them in and they worked... Thaks again...

here's a pic (i put a small piece of tape over the resisters so they woldn't fall out. I also clamped the wires to the capacitors so they wouldn't harm the soldier pads. Eventually (when I get my koolance case) I will mount the resister holder to my case.)

[Silver]

You are very welcome. The voltage will definately help stubborn chips (the only ones I seem to get) to achieve more acceptable levels. My 750 duron would not go over 960 but after throwing some voltage at it I got it to 1120. At any rate, two things: 1) If you do something radical and the system dies do not right off hand think it is a hard drive or other item before changing the resistors out. Thought I burned the board/cpu a couple of times when it was just a resistor pushed too hard. BTW I would go with a 5.6k on the regulator as 4.6 will allow alot more voltage than you will use. Thats of course because of heat. The second is get one or two of those stick on wire holders and attach the wires to the case to kind of imobilize them from air moving them in the case. As you know the wires and soldered legs are pretty small.

Take Care and good luck with the new setup.:)