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is my ram faulty?

  • 17-04-2011 4:16pm
    #1
    Tea_Bag
    Registered Users Posts: 4,983 ✭✭✭


    i have 4gb of RAM from the manufacturer "Elpida" according to CPU-Z.

    admittedly, it was bought as Ebuyer.com's "Value" DDR3 1333mhz 4gb kit RAM or something, some time ago.

    anyway, im trying very hard to overclock my athlon X3 445 rana (2.9ghz) @phenom ii X4 (2.9ghz - 6mb L3, fully stable)

    but any overclocking i do (@3.45ghz now) ups the DRAM ratio so my ram gets overclocked, and no matter what frequency i get it to run at, it fails memtest and BSODS under any stress tests.


    FAILs @ 14xxmhz, 1580mhz, 1600mhz, 1800mhz, etc.
    1280mhz FFS. i can only do any stress tests/pass memtest when its @ stock 1333mhz

    is it faulty as it only works @1333 and not even below? do i have a case here to return it to ebuyer.com?
    would upping the voltage help out? its @1.50v now @ stock.

    Mobo is an MSI 770-G45

    Thanks for any advice here.

    Tea


Comments

  • #2
    Solitaire
    Moderators, Technology & Internet Moderators Posts: 18,377 Mod ✭✭✭✭Solitaire


    Sounds like your mobo's memory divider is borked, it should run fine @ 1280MHz so long as it is being run at a suitable voltage with suitable timings. If you can verify those are good try updating the BIOS?


  • #3
    Tea_Bag
    Registered Users Posts: 4,983 ✭✭✭Tea_Bag


    Solitaire wrote: »
    Sounds like your mobo's memory divider is borked, it should run fine @ 1280MHz so long as it is being run at a suitable voltage with suitable timings. If you can verify those are good try updating the BIOS?

    I haven't bothered updating my BIOS as the changelog from each revision doesn't mention anything important. will do tonight anyway if I can find my damn usb stick.

    I got it stable last night @3.35GHz and RAM at 1580mHz after upping the RAM voltage to 1.55v

    tbh, I'm a complete noob at OC. I'm not changing the ram timing, its @cl9 unless it changes automatically with an increase in FBS?
    only gripe I have with the OC is that it appears to disable the speed stepping of the CPU, so now its permanently @ full speed (according to CPUZ anyway)

    otherwise I'm quite pleased with my cheapo athlon x3 :)

    what's the max I should let my NB and HT link frequency run at? I've kept my multiplier @x14.5


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