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Thread: WR CAS4 and CAS5 on Geil PC8500 - OCM - First memory reaching 700MHz

  1. 09-25-2006, 03:11 AM #1
    jmax_oc
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    WR CAS4 and CAS5 on Geil PC8500 - OCM - First memory reaching 700MHz

    Hello,

    P5B Dlx Wifi BIOS 0614 VDDr modded
    E6600 Step 6b2
    2x512 Geil PC8500 C5 Dual Spec cooled by 80mm fan 2.8V
    Memory not pretested, fairly bought, not lended by brand manufacturer.
    Very old XP Pro SP1 no tweak

    WR CAS 4 SINGLE CHANNEL 687MHz = DDR2-1374

    Validation


    WR CAS 5 SINGLE CHANNEL 710MHz = DDR2-1420

    Validation


    Other results (dual channel, cas3, 4-4-3- and validation) on OCM. I have a huge chipset issue since my dual chanel results are very close between 4-4-3-12 and 5-6-6-18...
    Keep tuned
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  2. 09-25-2006, 04:10 AM #2
    TaPaKaH
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    any bandwidth pics @ that speed ?
    Last edited by TaPaKaH; 09-25-2006 at 04:27 AM.
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  3. 09-25-2006, 04:38 AM #3
    kemo
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    congrats
    great clocks waiting for benching
    ________
    buy silver surfer vaporizer
    Last edited by kemo; 01-31-2011 at 10:28 AM.
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  4. 09-25-2006, 05:12 AM #4
    jmax_oc
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    For bandwidth, I need a better cpu.
    http://jmax.oc.free.fr/Geil%20PC8500...t%2045.6ns.JPG
    http://jmax.oc.free.fr/Geil%20PC8500...st%2010240.JPG
    http://jmax.oc.free.fr/Geil%20PC8500/Sandra%207972.JPG
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  5. 09-25-2006, 06:59 AM #5
    SMa
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    wow... 710MHz

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  6. 09-25-2006, 07:10 AM #6
    187(V)URD@
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    Nice, thats xtreme
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  7. 09-25-2006, 07:15 AM #7
    syne_24
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    damn that's fast...
    For all your cooling needs: ShopPTS.com
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    Rampage Formula // E8400 @ 4.0 (1.28v)
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  8. 09-25-2006, 07:27 AM #8
    kiwi
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    Geil is alive
    ...
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  9. 09-25-2006, 07:33 AM #9
    jmax_oc
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    Max screen avec VCore NB @ 1.65V : 706MHz
    Max screen avec VCore NB @ 1.45V : 656MHz
    Max screen avec VCore NB @ 1.25V : 600MHz (boote 6x285 dans ce cas)

    So I was chipset limited
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  10. 09-25-2006, 07:34 AM #10
    DaWaN
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    Does the other stick you have also that well like this stick in single channel ?

    My Rig:
    Intel Core 2 Duo E6400
    2x512mb Micron PC3200 OEM D9DQW "Fatbody"
    Biostar TForce P965 Deluxe
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  11. 09-25-2006, 07:34 AM #11
    rick_fx
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    700 mhz is incredible!
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  12. 09-25-2006, 07:43 AM #12
    jmax_oc
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    Quote Originally Posted by DaWaN
    Does the other stick you have also that well like this stick in single channel ?
    2-3MHz "worse"
    But I'm chipset limited
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  13. 09-25-2006, 08:05 AM #13
    galimim
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    wow nice
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  14. 09-25-2006, 08:23 AM #14
    kiwi
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    Quote Originally Posted by jmax_oc
    Max screen avec VCore NB @ 1.65V : 706MHz
    Max screen avec VCore NB @ 1.45V : 656MHz
    Max screen avec VCore NB @ 1.25V : 600MHz (boote 6x285 dans ce cas)

    So I was chipset limited
    So chipset voltage is very important even with ram at 1:2?
    ...
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  15. 09-25-2006, 08:25 AM #15
    jmax_oc
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    Quote Originally Posted by kiwi
    So chipset voltage is very important even with ram at 1:2?
    Yes, and probably also important in 2:3 ratio...
    I'm doing more tests
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  16. 09-25-2006, 08:28 AM #16
    Revv23
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    wow congrats

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  17. 09-25-2006, 10:17 AM #17
    SMa
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    Quote Originally Posted by kiwi
    So chipset voltage is very important even with ram at 1:2?
    ram faster = chipset faster/more work
    so more voltage is needed

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  18. 09-25-2006, 10:28 AM #18
    Fr3ak
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    Insane clocks!
    Did you test them with less voltage too?
    オタク
    "Perfection is a state you should always try to attain, yet one you can never reach." - me =)
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  19. 09-25-2006, 10:48 AM #19
    Aerou
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    so if its the chipset you think ...
    ... so WC and high Volt the chipset you should ...

    Yeah 700+ is truly insane, but nothin better than improving your own WR

    Congratz man, honestly ..
    Sometimes a good slap in the face is all you need

    Bios my arss.....
    I can fix this problem with a hardware mod....     Hipro5

    "Overclock till death. Overclocking is life." Hipro5
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  20. 09-25-2006, 11:07 AM #20
    jmax_oc
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    Quote Originally Posted by Fr3ak
    Insane clocks!
    Did you test them with less voltage too?
    Yes
    Max screen 5-6-6-18 620MHz 1.8V
    Max screen 5-6-6-18 660MHz 2.0V
    Max screen 5-6-6-18 704MHz 2.45V

    Cas 4 need far more Voltage to reach Cas 5 results
    Max screen 4-5-5-15 586MHz 2.15V
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  21. 09-25-2006, 11:14 AM #21
    charlie
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    amazing... only 18 months ago HALF this speed was unthinkable.
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  22. 09-25-2006, 11:35 AM #22
    sierra_bound
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    Great results.
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  23. 09-25-2006, 12:54 PM #23
    Exedy
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    omg...your results are so...

    you could be an xtreme ram tester ...
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  24. 09-25-2006, 01:28 PM #24
    md_curl
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    great jmax
    OverClocking-Masters.Com
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  25. 09-29-2006, 10:08 AM #25
    jmax_oc
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    Quote Originally Posted by jmax_oc
    Max screen avec VCore NB @ 1.65V : 706MHz
    Max screen avec VCore NB @ 1.45V : 656MHz
    Max screen avec VCore NB @ 1.25V : 600MHz (boote 6x285 dans ce cas)

    So I was chipset limited
    No improvment since Vmch mod...
    1.65V Bios = 1.56V REel.
    I tried 1.65V, 1.72V and 1.8V and max 2-4MHz better than my previous scores.
    I don't understand why
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