Results 1 to 5 of 5
  1. #1
    Join Date
    Sep 2002

    Understanding Voltages

    Hello everybody,
    I am learing slowly about overclocking. I have just mastered understanding you take your chip's Ratio and mutiply by the FSB.
    So to test I took my Athlon XP 2000+ with a Ratio of 12.5 times my FSB 133 to get factory 1.667. I know for most this is simple. So hang with me a second. So I took my 12.5 and a speed of 140 and got my mini overclock of 1.75Ghz(again simple but I am learining still)
    My question is what effect will raising my voltage up have on the system? Does it make it more stable? According to AMD my Operating voltage is 1.50 to 1.65 with a "nominal voltage" of 1.75.

    What effect does changing the voltages have with the cpu and system?

    Secondly my BIOS gives the option of changing the Ratio from 12.5, 13, 14. If I change this will that cause any effet to my system or should I just leave the Ratio at 12.5 because the chip is 12.5.

    Note that I have no clue or desire about unlocking the CPU. That is way to advanced for me at this time.
    Thanks for all yoru help!

  2. #2
    Moderator #666
    WarriorII's Avatar
    10 Year Badge
    Join Date
    Nov 2001
    Changing the voltage makes the system more stable, when O/C.

    BIOS, yes, it gives the option to change, but if your CPU is not unlocked, it doesn't matter. You can cange the # but it will not do anything.

    FSB overclocking seems to be the easiest.
    To Honor Those who went before their time.
    God Bless them all
    Fight the Fight worth Fighting
    FOLD for Team 32

    Black Belt Overclocker MyHeatware under WarriorII

  3. #3
    Raise your Vcore will make higher clock speed more stable(hopefully), it also give you much more heat, so good cooling is essential for a sucessful overclock. Excessive V-core can fry a CPU. If you change the multiplier on a locked CPU, your motherboard will notice this and change to default values automatically
    Silent Desktop: Antec Overture, Abit NF7-S V2.0, Athlon XP Mobile 2400+ 2GHz@1.4V, Radeon 9600 Pro passively cooled, WD 36GB Raptor, Seagate 160GB, Thermalright XP-97 heatsink, 3 Panaflo fans@5V, everything inaudible except raptor clicking :temper:

  4. #4
    u wont be able to change the ratio to anything but 12.5 unless you unlock.. so dont try unless u like clearing your cmos every 3 secs
    AXP 2400+
    ThermalTakevolacano 9+
    Antec Truepower 430w
    ABIT NF7
    Corsair XMS pc 3500 DDR (512)
    Radeon 9700 pro
    Avatar by ReTiCuLeX

  5. #5
    Member SafirXP's Avatar
    Join Date
    Oct 2002
    As you're new, stick to FSB overclocking. I ruined my AXP 1700+ trying to unlock it!

    When you increase the FSB and see your PC going BSOD or freezing, try increasing the voltage too. To test your stability download the Prime95 programme. Otherwise just run 3DMark2001SE & SiSoft Sandra benchmarks. Play a game or two, to test stability! And also keep an eye on the core temperature. Make sure it doesn't go over 70C. Some people would say 60C, depends on your room temperature actually.

    You could also add some case fans. There are probably some spots for adding fans in your case, usually at the back just underneath the PSU and some at the front, beneath or in front of your internal 3.5" bays!
    Oh Frank... Oh Margaret!! Mmmmm...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts