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Thread: Dram burst length? ummm..




  1. #1
    Join Date
    Oct 2003
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    hey guys hope this would be the closest forum for an answer. Im not really overclocking, but figure you guys would know. I got an asus p4p800 mb and bought some kingston khx32000K memory. the 1gig, 2-2-2-6-1 stuff. anyway it freaked out on my comp and after calling tech support i figured out it was too agressive for the MB. So i went out and bought some KHX3200AK2/1g this is a setting of 2-3-2-6-1.

    Anyway it worked fine but i heard that the asus board doesn't set the speeds right, so i went in and did it manually, had to set them to 2-3-3-6 (2-3-2 wouldn't work with that board) and thats fine, but the last setting im unclear on

    Its called Dram Burst length and the 2 options are 4 and 8. which setting is better? i know with the others lower is better, but im not sure with this one, i dont know what it does either

    so simple question, would a 4 or an 8 in Dram burst length be better?

    im totally lost =P tnx guys

    ^_^x KD

  2. #2
    Join Date
    Aug 2003
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    A DRAM burst length of 8 will give you better preformance than a burst length of 4 if your mobo and ram can handle it.

  3. #3
    Join Date
    Aug 2003
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    1,790

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    I use the KHX3200 without a problem in my P4P800. The reason why yours didn't work was because you probably weren't giving it enough voltage. In order for me to run this stuff 2-2-2-5 at the default 200mhz it needs 2.75v. I run it 2-2-3-5 at 2.65v for daily use. It is better than the "A" version.

    Anyway, I have done testing with the refresh rates of 8 and 4, and have found that it doesn't do anything for Sandra Bandwidth, or 3DMark.

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  4. #4
    Join Date
    Oct 2003
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    hrm so set ti to 8 is what you guys are saying? Everything else lower is better, why is bigger better here?

    maybe i should look into giving it some more voltage, i'll have to take a look

  5. #5
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    Oct 2003
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    nm, found something on tomshardare that described the different menaings and where they should be. got it at 2-3-3-6 and 8 burst right now with mem acceleration on

    when i try to turn it to 2-3-2-6 though it wont work says 'overclocking failed' when i try to boot up. i heard that the p4p800 has problems with that, but soulburner mentions voltage being a possible problem? how do i increase the voltage to 2.65v? or is there any other possible way?

  6. #6
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    Aug 2003
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    1,790

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    DDR Reference Voltage in the Jumperfree Menu.

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  7. #7
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    Oct 2003
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    tnx i'll give it a look, one more question to bug you with, whereabouts does it show the ram MHZ? i couldn't seem to find it. just wanted to make sure it was set right since it had everything else set weird (400mhz, so it should be 200 right?)

    ^_^x KD

  8. #8
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    Soulburner said 2-2-3-5 instead of 2-3-2-5.
    RAS to CAS should be 3 if ur mem doesn't allow 2.
    [size=9If there's a pensieve fear, a wasted year, a man must learn to cope.
    If his obsession's real, suppression that he feels must turn to hope - DT

    rig:
    P4C800-Deluxe 2.8 C (+Vantec Aeroflow)
    Sapphire 9700 Pro
    4x256MB Kingston KVR400C25
    Audigy 2
    2x80GB Maxtor DM9 RAID 0
    Enermax 433W
    ALL AIR, no Vmod

    3DMark2001 = 20954
    3DMark2003 = 6038
    Sandra Mem = 6028/6018[/size]

  9. #9
    Join Date
    Oct 2003
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    well its listed as 2-3-2-6 so id think the ras to cas could be 2, it looks like the RAS precharge is the one thats suposed to be 3

    http://www.ec.kingston.com/ecom/conf...=KHX3200AK2/1G

    this is the memory i got

    so i should have the settings to 2-3-2-6 but its not letting me. im gonna try the 2.65 v and setting it to 2-3-2-6.. but your right i read it wrong he has his with the 3 on ras to cas not ras precharge. will that be a problem?

    ^_^x kD

  10. #10
    Join Date
    Jul 2003
    Location
    NYC
    Posts
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    But seriously, i won't hurt to try :)
    U will notice that timings order in ASUS BIOS is not the same with, say, SANDRA. If u set it to 2-2-3-5 (BIOS), sandra will display it as 2-3-2-5
    [size=9If there's a pensieve fear, a wasted year, a man must learn to cope.
    If his obsession's real, suppression that he feels must turn to hope - DT

    rig:
    P4C800-Deluxe 2.8 C (+Vantec Aeroflow)
    Sapphire 9700 Pro
    4x256MB Kingston KVR400C25
    Audigy 2
    2x80GB Maxtor DM9 RAID 0
    Enermax 433W
    ALL AIR, no Vmod

    3DMark2001 = 20954
    3DMark2003 = 6038
    Sandra Mem = 6028/6018[/size]

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