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Semprom 2800 @ 2.7GHz

Discussion in 'Overclocking & Cooling' started by mofo's, 31 May 2006.

  1. mofo's

    Wise Guy

    Joined: 13 Jan 2004

    Posts: 1,216

    Finally got one those DFIs nForce 3 boards and what a board it is!

    Currently at 2.7GHz with 340HTT does 2.8GHz with 350HTT but abit unstable, I feel its the memory timings

    Any help on these? the board has loads of memory options for tweaks, quite a few I don't really understand!

    Did a quick PI test at 1M - 35secs
     
  2. Indy500

    Capodecina

    Joined: 7 Mar 2005

    Posts: 17,509

    What ram and what are the current settings?
     
  3. mofo's

    Wise Guy

    Joined: 13 Jan 2004

    Posts: 1,216

    Ram is mushkin PC3500 currently with divider (can find out when I get home)

    Timings are 3-4-4-11-1T think it may be the 1T need 2T, but can't find adjustment for this!
     
    Last edited: 31 May 2006
  4. Mul

    Wise Guy

    Joined: 26 Aug 2004

    Posts: 1,842

    It'll be named Command Per Clock. Enable is 1T, and Disable is 2T. It'll be in memory configuration.

    Mul
     
  5. Brizzles

    Sgarrista

    Joined: 16 Mar 2005

    Posts: 7,517

    Location: Clevedon , Bristol

    Beat me to it !

    Go to Genie Bios > CPC ( or Command Per Clock ) > Enabled=1T / Disabled=2t

    DFI Lanparty UV NF3 250gb

    Cheers,

    Mark
     
  6. mofo's

    Wise Guy

    Joined: 13 Jan 2004

    Posts: 1,216

    Cheers, will give it a go tonight!
     
  7. WatchTower

    Mobster

    Joined: 9 Jan 2005

    Posts: 4,433

    Location: Stoke-On-Trent

    Bows down you are the OC master. Thats very impressive you must be a Jedi. :D
     
  8. mofo's

    Wise Guy

    Joined: 13 Jan 2004

    Posts: 1,216

    Just lucky with OC'ing recently but i'm not complaining :)
     
  9. str

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,740

    At 2T you'll lose somewhere around 4 to 6 seconds for SuperPI 1M.

    What stepping is your Sempron and at what volts for 2.7Ghz and for 2.8Ghz?
     
  10. Mikey1280

    Wise Guy

    Joined: 1 Jan 2006

    Posts: 1,526

    Location: South East London

    6 to 8 seconds? It cant be that much can it?

    EDIT: nice ninja edit, still dont think it will be that much
     
  11. str

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,740

    Yeah I hadn't taken into account the ram probably is somewhere around DDR460 which should help a bit at the 3-4-4 timings. :)
     
  12. Mikey1280

    Wise Guy

    Joined: 1 Jan 2006

    Posts: 1,526

    Location: South East London

    I mite try this later, to see the speed difference.
     
  13. str

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,740

    Yeah definately give it a go. I was surprised how much of a difference 1T makes for SuperPI.
     
  14. rgzcampbell

    Hitman

    Joined: 4 Nov 2002

    Posts: 706

    Location: Blairgowrie

    Nice overclock I had a sempron 3100 that did 2.7 with a smidge over stock volts. Changing 2t to 1t will shave 1.5-2 seconds max from your superpi time. Best I got out of it was 33 seconds.
     
  15. str

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,740

    Hrm, I just did a test and lost 5 seconds SuperPI 1M when switching from 1T to 2T with the ram at DDR400 2.5-3-3-7.

    Could it be it's dropping so much because of only running at DDR400 or maybe because I'm clocked at only 2.4Ghz atm due to running at stock volts?

    EDIT: Ignore my ramblings. :D I see only a ~2 seconds difference on a clean boot with nothing else running. :)
     
    Last edited: 31 May 2006