New to o/c few questions

SlickSlick Upstate New York
edited November 2004 in Hardware
Hey guys I know it has been a while since I posted here but I am in need of help. :D I have been working on my new computer and have a few overclocking basics but need to know a little bit more information. Ill start with my specs:

AMD athlong 2600+ mobile
Abit NF7-S mobo
Thermaltake Aquarius 3 watercooling with zalman waterblock
1 gig of generic dell and other ram (this is only 266MHz stuff so I have the mobo set to run it at that speed even if the fsb is higher)

Right now I have it at 200(x2) and 11.5 multiplier = 2.3 GHz
default voltages

So my questions are how does increasing the fsb affect your system, how does changing the multiplier affect your system. For intance, lets say the system becomes unstable, do you want to lower the FSB, the multiplier, or both. Also how do you know when when to adjust the voltages and by how much.

Thank you.

Comments

  • mmonninmmonnin Centreville, VA
    edited November 2004
    Increasing the Multi: All this changes is your CPU. Thats it. Everything else is the same. CPU intensive apps will be the only thing that benefit from this.

    Increasing the FSB: This increases the performance of your whole system. It will increase your CPU speed, increase your RAM speed (if set to do so), since RAM speed went up there will be more bandwidth. Bandwidth = Good.:)

    Usually to find your max speed is to lower your multi pretty low so that you have a low CPU speed so when you up the FSB your CPU isnt holding you back. Then you can find your max RAM/FSB speed if you are running Sync which is best for performance. Then raise the multi back up to get your max speed. You wll have to do some changing of both multi and FSB to find the best combo.

    Upping the core is best when OCing and it becomes unstable. 2.3GHz could prolly use some more vcore if you are unstable. Bump it up 1 or 2 notches at first to see if it stablizes the system.
  • Cygnus_x_1Cygnus_x_1 New Jersey
    edited November 2004
    you will get better results keeping the mem synchronus with the fsb. you will prolly not be able to clock the fbs as high, but you will get better return on your oc.

    mmonnin pretty much nailed your multi and fsb questions, as far as the voltage, base that on your cpu temps for the cpu voltage (havent worked with the mobiles but you have a better chance with the lower default voltages) and with the mem, your pretty safe going up to 2.9, but w/ the generic mem i wouldnt do it too long. when you get some decent ram, then can take pretty good abuse.

    also prolly the best thing you can do is to get a good power supply. there good power supply guide in the articles section of short media to point you in teh right direction.

    oc'ing is loads of fun, but VERY time consuming to find the sweet spot (not necessarily the limit you components will go)

    enjoy...
  • mmonninmmonnin Centreville, VA
    edited November 2004
    About any RAM will take 2.9V. Not sure why it wouldnt.
  • SlickSlick Upstate New York
    edited November 2004
    by unstable do you mean that the system refuses to boot or it reboots its self midboot. or do you mean that files fail to load and windows gives you errors?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited November 2004
    Any and all of the above. If it does something that isn't normal (unless a new software install, or something of the like caused it) it's considered unstable.
  • nomannoman pakistan
    edited November 2004
    does higher multi produces more heat than higher fsb for the same clock speed?
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2004
    No, Noman. At the same clockspeed, a higher FSB or a higher multi produces the same CPU heat. :)
  • mmonninmmonnin Centreville, VA
    edited November 2004
    The CPU is still running at the same MHz. Its just that the connection to the Northbridge will be slower. OVerall a higher multi will produce less heat because the RAM and Northbridge will make more heat with a higher FSB. That wont effect your case temp at all tho.
  • nomannoman pakistan
    edited November 2004
    that means if my fsb is limimited by ram...so if i have a choice
    i should get the higher fsb rather than a higher multi-for same clock speed...right?

    say my top fsb is 215 mhz....then i would go with 10.5x to get
    215*10.5x=2257mhz..................but if i do it like 210*11x=2310mhz...............which of the two would be "theoretically" better??? also in real world.... :scratch:
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2004
    210 * 11 = 2310MHz would be better. ~60MHz on the CPU is better than 5MHz on the RAM.
  • mmonninmmonnin Centreville, VA
    edited November 2004
    The best way would be to test it. Get some programs usually used in reviews to see which setting is better for you. It gets trickier when you start messing with RAm timings because better RAM timings with a slower FSB CAN give you more mem bandwidth than looser timings and a higher FSB.
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