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Thread: Opteron overclocking help

  1. #1
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    Opteron overclocking help

    I've been getting my hands dirty with overclocking for the first time today. My system is:

    Opteron 146 - CABNE 0544 EPMW
    Asrock DualSata2
    512mb TwinMos DDR400
    Antec TrueBlue 480w PSU

    So far, I've got my memory at 215mhz with a 5/6 divider. My Opteron is at 2590mhz with a 259 HTT. If I put the HTT any higher, superPi and Prime95 get errors.

    However, when I was testing my memory limits, I was able to boot it at 245mhz with 8x multi and this was superPi, prime95 and memtest stable. What do you think is holding me back?

    I'm using the Asrock official 1.20 bios because I don't know how to flash to OCW Beta1.

    Thanks





  2. #2
    HEXUS.bouncer Jonny's Avatar
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    What is your HTT multiplier?

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    10. It's the default for the 146. Would it be worth lowering it to 9 and upping the HTT?





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    No,

    There should be another multiplyer. Should go up to 5x.

    Do this.

    4x HTT MULTI

    10x CPU MULTI

    1.45V

    FSB 260

    Divider 333

    Job done.

  5. #5
    HEXUS.bouncer Jonny's Avatar
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    I meant the HTT multiplier for the chipset - maximum of 5. What you mention, set to 10, is your CPU multiplier. The HTT multiplier will be accesible in your BIOS, and has a maximum, like I say of 5.
    Multiply your HTT by this value, and you need to make sure it is under 1000 total.

    Make sense?

    E.g. HTT @ 259, Multi @ 4,
    Total = 259 x 4
    = 1036

    This would be too high, and would give errors. You would have to drop the multiplier to 3.


    EDIT: Lol, Noni beat me to it... try the values he suggests.

  6. #6
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    Thanks for the help guys. I've never read anywhere about a chipset HTT or anything about the 1000 total. I'll try changing those now and tell you what happens.





  7. #7
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    techno change the chipset multi to 3x not 4x.

  8. #8
    HEXUS.bouncer Jonny's Avatar
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    Too late...

    He went to change it to 4 10 minutes ago...

    *BANG!*

  9. #9
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    LOL.

    He wont be online for a while.


    that aint funny....

  10. #10
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    It's a good job I didn't find the setting to change it then isn't it Looked everywhere in the bios and found nothing to do with a chipset HTT.





  11. #11
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    Lol,

    Find a review on your board, and then look at where they looked in the BIOS, it might be there.

    Good luck.

  12. #12
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    • Flibb's system
      • Motherboard:
      • Gigabyte GA-970A-UD3
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    Where do I set the HTT multiplier?
    Goto “Advanced” menu >> “Chipset Configuration”
    You’ll find CPU-NB Link Speed, set
    1000MHz = 5X
    800MHz = 4X
    600MHz = 3X
    400MHz = 2X
    200MHz = 1X


    Real big FAQ http://www.ocworkbench.com/ocwb/ulti...c/30/5271.html

  13. #13
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    Found an FAQ for my board.

    Where do I set the HTT multiplier?
    Goto “Advanced” menu >> “Chipset Configuration”
    You’ll find CPU-NB Link Speed, set
    1000MHz = 5X
    800MHz = 4X
    600MHz = 3X
    400MHz = 2X
    200MHz = 1X

    Gonna try now.





  14. #14
    Sexiest Hexus user? quite possibly Russ's Avatar
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  15. #15
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    Flibb, just saw your post. Thanks

    The extra volts seem to have solved the problem. 2.65ghz is 10 minutes prime95 stable and 4m superpi. 40c at full load.

    edit: 2.7ghz isn't stable either. superpi 4m gives error - Not convergent in SQR05 and it fails prime95. I've tried lowering memory divider to DDR266 but no luck. I think it might be my motherboard now as it's supposed to have a 254HTT lock. Gonna try lowering chipset HTT to 2x now.

    edit2: 2680mhz stable is the most I can get atm. Memory is running at 223.3mhz on a 5:6 divider. I'm happy with this but would love to get a little bit more.

    Last edited by technophreak; 28-12-2005 at 08:23 PM.





  16. #16
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    Give PCMark04 a try too, just to be sure.

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