help plz......(8kha+)

ikroqikroq
edited October 2003 in Hardware
hello all
i'm newbie in OC'ing world.......so i really really need a lot of help....:)
i got amd xp 1700+ , epox 8kha+, n 256mb pc2100 crucial on my console....
i wanna OC my console but i jst wanna try that via multiplier.....
but my mobo can only handle multiplier 12.5....

so does anybody knows how to open the multiplier on the board or on the procs....please tell me.......i would b very very thanking u all......

thx:D

Comments

  • a2jfreaka2jfreak Houston, TX Member
    edited October 2003
    You can do it by shorting certain pins on the bridges, but I'd get an nForce2 mobo (Abit NF7-S v2.0) and some high-end RAM (PC3200 or better). That will make life much nicer than a fast chip w/ slow RAM.
  • ikroqikroq
    edited October 2003
    what pins should i short to do that...?
    thx 4 the advice....
  • muddocktormuddocktor
    edited October 2003
    OK, I'll tell you how I went about overclocking my KHA+.:)

    First of all, is your 1700 a Tbred B version, a Tbred A version, or a palamino 1700? The version 1700 makes quite a difference in what kind of overclock you can achieve. With a palamino, you will be very hard pressed to get it to 1800-1900. With a Tbred A 1700, you will be pushing it to get 2000 out of it. If you have a Tbred B, you are in overclocking heaven.:D

    I take no responibility for anything that happens to your proc. I've done this procedure successfully on around 5 Tbred B procs with no problems, but YMMV.

    First of all, set the multi to 12.5 and start overclocking the fsb speed; you should be able to get to 150-160 fsb without too much problems. You are doing this to see how much headroom the proc has before trying to change any multiplier settings by hard coding a new multi. If your ram and pci devices let you get up to around 160 fsb, you know that a 15 multiplier should be OK. Then, set things back to stock speed before powering down the computer. Remove the hsf and proc and you will have to cut or blow the 2 right most L3 bridges to hard code a 15 multiplier on the proc. I use an old AT psu that I have laying around and use the 5v rail and ground to blow the bridges. I made an bridge blowing setup by soldering 2 sewing needles onto a 4 pin molex connector, with 1 being connected to the 5v rail and the other is connected to the ground wire. I then carefully touch the 2 needles to the little gold dots corresponding to the bridges I want to blow and as soon as they make good contact with the gold dots, you will see a small flash under the surface of the proc, which is the bridge blowing like a fuse. Also at this time, it would be advisable to reset the vcore by hard coding, if you had to up the vcore from default while you were testing the proc before removal. If I have to connect a L11 bridge back that was cut by the factory when resetting the vcore, I fill the laser cut in with a small drop of gel type superglue and let it dry. Then I can just paint the bridge closed again with conductive paint. After blowing the 2 right hand L3 bridges (for a 15 multiplier) and making any mods needed on the L11 bridges to adjust the vcore, you can then reinstall the proc and hsf on the mobo and boot up. Once you boot back up and verify that it is working correctly, you can then start upping the fsb once again to see how much headroom that proc has left.

    BTW, you can see which multi's need to be cut for the various multiplier settings and vcore settings from this site here. It makes it easy to see which bridges need to be cut. The 1700 Tbred and the 2500 and 3200 Barton all use an 11 multi, which has all 5 of the L3 bridges connected, which means to select another multi is as easy as blowing a couple of bridges, with no pit filling or bridge connecting required.


    If you aren't very familiar with overclocking computers and modding parts, I would strongly suggest that you get a friend over who is knowledgable about such things to help you out with this procedure, if you have any doubts at all about doing this. If you happen to get the volts across 2 different bridges at the same time while blowing the bridges, I've heard that it will trash the proc and make it a keychain item.:bawling:
  • muddocktormuddocktor
    edited October 2003
    a2j, you would be surprised at how good the old KHA+ mobo still performs. Mine gets some damn good folding speed with that 2100 I have in it overclocked to 2250. It wouldn't pick up much more speed in an nf2 board, for folding. Not everyone can afford to go out and spend a couple Bennie Franklin's for a new mobo and ram.
  • a2jfreaka2jfreak Houston, TX Member
    edited October 2003
    Mudd: You are correct, I would be surpised by an Epox board that performs well, or, even an Epox board that just . . . performs. :D
  • panzerkwpanzerkw New York City
    edited October 2003
    Well, my Epox 8RDA+ performed very well...until it died... :banghead:

    I'm now on my 3rd motherboard and 5th hard disk this year. :thumbsdow
  • muddocktormuddocktor
    edited October 2003
    The trick with Epox boards is not to buy them new, get it as a refurb at Newegg.:D I've heard of all the horror stories everyone tells about dead Epox board but I've had this Newegg refurb folding 24/7 for 14 months now and it's still going strong.
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited October 2003
    Yeah. Don't buy new Epox (Or ever)... The KT266A and nForce2 northbridges I have on my keychain are testament.
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