Gots me a question

GobblesGobbles Ventura California
edited January 2004 in Hardware
can you overclock the memory independant of the processor??

Ive got this nice corsair pc3200c2pt which is currently running at 2 3 3 6, at 166 which I assume is in sync with the processor.

Would I gain anything by running the memory faster? I cant OC the proc due to cooling reasons at this time, but if I can get some gain through the ram that would be cool.

TIA

Gobbles

Comments

  • EnverexEnverex Worcester, UK Icrontian
    edited January 2004
    You could increase the FSB, and lower the multiplier at the same time. Which would basically give the same effect. Though you end up increasing the PCI bus as well if the motherboard doesn't lock it (or have alterable multipliers), though this doesn't always present a problem.
  • muddocktormuddocktor
    edited January 2004
    If it's an nforce2 board, you shouldn't have any problem with the pci bus running out of spec at a higher fsb speed but if it's a via chipset board you might have a problem. Like Enervex said, upping the fsb speed and lowering the multi to keep the cpu speed constant will give better performance. Also, you can try tightening the timings on that memory and see if it can run tighter ram timings. My XMS3200C2 will run 2-2-2-11 timings at 218 fsb on my Abit board.
  • edcentricedcentric near Milwaukee, Wisconsin Icrontian
    edited January 2004
    On most platforms you can.
    But I suggest that you run unbuffered sandra scores and compare them.
    On most modern mobo running hte memory async doesnt gain you any thing.
    Have you tried tigher timings? Does running 2227 help you?
  • GobblesGobbles Ventura California
    edited January 2004
    its a NF7-s..

    Ill try some tighter timings and see what happens...

    Gobbles
  • GobblesGobbles Ventura California
    edited January 2004
    ok I made an error...
    Im running at 2 2 2 7 already. Im set to turbo.
    I ran sandra memory bench and here are my results..

    Int Buffer 2356
    Float buffer 2189

    is that right on or kinda low??

    System::::
    Barton 2500+
    Abit NF7-S
    1x512 Corsair XMS 3200C2PT
  • muddocktormuddocktor
    edited January 2004
    That sounds a little low to me, but then I'm running my nf7-s on a 218 fsb speed with 2-2-2-11 set on memory timings. If you can't overclock your proc due to cooling problems for now, then bump your multi back to 9 and up the fsb speed up to 203 fsb so that your proc is running at the stock MHz but you will be having the better bandwidth provided by the faster fsb speed.
  • TheLostSwedeTheLostSwede Trondheim, Norway Icrontian
    edited January 2004
    Gobbles wrote:
    ok I made an error...
    Im running at 2 2 2 7 already. Im set to turbo.
    I ran sandra memory bench and here are my results..

    Int Buffer 2356
    Float buffer 2189

    is that right on or kinda low??

    System::::
    Barton 2500+
    Abit NF7-S
    1x512 Corsair XMS 3200C2PT

    That's horribly low. What was the fsb now? Have you set the divider to 3/3. 4/4 or 6/6? (it's not really a divider but i call it that)
  • GobblesGobbles Ventura California
    edited January 2004
    its at 333 or so the post screen says..

    as for the divider as you call it... let me reboot real quick and check...

    Gobbles
  • GobblesGobbles Ventura California
    edited January 2004
    OK I checked it was set to auto. I set it to 3/3 and ran sandra

    int 2359
    float 2203

    dram freq. is 333

    im gonna try 4/4 and 6/6 ill post the scores of each..

    Gobbles
  • GobblesGobbles Ventura California
    edited January 2004
    Ok here are screen shots of all 3 tests...
    in order

    Freq. 333 3/3 4/4 6/6

    Gobbles
  • TheBaronTheBaron Austin, TX
    edited January 2004
    remember since its an nforce board, 2-3-3-11 would be faster than 2-3-3-7 for you. you should try 2-2-2-11
  • GobblesGobbles Ventura California
    edited January 2004
    ill try that.. and rerun the test.

    here is my cpuz info...

    Gobbles
  • GobblesGobbles Ventura California
    edited January 2004
    ok

    i just ran a new batch...

    Int Float divider freq mem
    2351 2182 3/3 333 2-2-2-11
    2351 2181 4/4 333 2-2-2-11
    2350 2181 6/6 333 2-2-2-11


    Does it matter what slot the stick is in.. Right now its closest to the processor, slot 1

    Gobbles.
  • GobblesGobbles Ventura California
    edited January 2004
    bump... anyone...

    those scores seem way low even for default no cpu OC.


    G
  • muddocktormuddocktor
    edited January 2004
    Are you running just 1 stick of ram? If you are, then I can run a bench on my A7N8X for you and see how it performs in single channel mode. I'll get on it and boot it up with 166 X 11 with 2-2-2-11 set on the ram and post my benches.
  • muddocktormuddocktor
    edited January 2004
    Here's a bench at 11X166, which is your 2500's normal speed, running single channel and at 2-2-2-11 timings for you to compare to, Gobbles.
  • GobblesGobbles Ventura California
    edited January 2004
    well I dont feel so bad now... I think im going back to 2 2 2 6 3/3 as thats were I saw the best numbers...

    Thanks Muddocktor
  • muddocktormuddocktor
    edited January 2004
    Whenever you can afford it, get a matching stick of ddr and then you can run dual channel mode and your mem bandwidth will go up considerabely. The Asus rig I have is just a dedicated folder, so I'm not worried about running dual channel on it.
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