Overclocking ReaperX RAM

liamliam
edited November 2008 in Hardware
The RAM is @ 1024 MHz and timing 5-5-5-18:o
I can get the timing to go to 4-4-4-12 at 800 MHz but not at 1024 MHz if I boot the voltage from 2.1 to 2.2 can I damage them and will the lower timing work:confused:

If not 4-4-4-12 what is the best timing for this RAM:confused:
http://www.ocztechnology.com/products/memory/ocz_pc2_8000_reaperx_hpc_4gb_edition<O:p></O:p>
<O:p</O:p

Comments

  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2008
    You won't get 4/4/4. Keep it at 2.0 or 2.1v and use 5/5/5 at 1000 or 1066MHz (PC2-8000 or PC2-8500).
  • liamliam
    edited November 2008
    PC-8000
  • liamliam
    edited November 2008
    Now the ram is running 1066mhz and 5/5/5/12 timings
    Shouldn't the ReaperX kit overclock more? they do have that large heat sink.

    And in the bios in DDR2 overcloking at the bottom of the list the fastest the ram can go it has *1200mhz*. this is the only speed with *'s next to it. does this meen that the ram is supposed to run at this speed???
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited November 2008
    The large heatsink and careful selection of parts in production is the reason why it can hit 1066 speeds. There may be more headroom, but it's unlikely. DDR2-1066 is the upper limit for most memory.

    Your BIOS lists 1200MHz because the BIOS supports memory frequencies up to 1200MHz. There aren't many sticks that will run that speed, and your ReaperX probably isn't on that list.
  • liamliam
    edited November 2008
    Ok may not be a good idea to go for 1200MHZ. I will google around and see if some one has hit 1200MHZ
  • RyderRyder Kalamazoo, Mi Icrontian
    edited November 2008
    Liam... how about listing what board and other components you have.
  • liamliam
    edited November 2008
    Q6600
    Ocz ReaperX 4 GB<O:p</O:p
    ASUS Maximus 2 Formula
    Coolermaster M850 (880W)
    4870x2
  • RyderRyder Kalamazoo, Mi Icrontian
    edited November 2008
    Ah... nice PITA board ;)

    Here is 2x1GB running 1200: http://www.ocztechnologyforum.com/forum/showpost.php?p=240961&postcount=1

    and 4x1GB: http://www.ocztechnologyforum.com/forum/showpost.php?p=241542&postcount=2

    You have 2GB modules.. so clocking is harder. Key timings:
    Trfc (Row Refresh) you want 54 - 60 with 2GB modules
    Trc (Row Cycle) around 22 - 30 will help clocking.
    No more than 2.1V on the sticks.. try to stay around 2.0v.
    AI Transaction booster - disabled, then Relax level 1 or 2 may get you higher.
    NB voltage as you raise the FSB, max at about 1.4 - 1.45V with stock cooling on it.

    We make an 1150 (PC2-9200) 4GB kit now.. so the IC's that run that fast are not going to make it down into the lower kits like they used to. Thus less chance of big clocks on the 8000 and 8500 kits.

    Hope that helps.
  • revorocksrevorocks England, East Sussex, Hove Member
    edited November 2008
    AHHHHHHHHHH DAM, I just spent ages typing out a massive long reply but then I clicked on back when I put my hand on the mouse. ****! :(

    Basically what I was saying is that I doubt Liam will understand all these timings and voltages and "relaxing" numbers :D. I imagine he'll stick with 1066MHZ at 5-5-5-12.
    Anyway, its his choice. Thanks Ryder for the help.
  • liamliam
    edited November 2008
    May as well stay with 1066mhz 5/5/5/12 because if the ram does go to 1200mhz i will lose the timings. So that will bring the performance down

    But what is faster having the high core speed, or the tighter timing?
  • BuddyJBuddyJ Dept. of Propaganda OKC Icrontian
    edited November 2008
    Higher core speed and loose timings is where it's at.
  • RyderRyder Kalamazoo, Mi Icrontian
    edited November 2008
    What are you talking about loosening the timings?

    I did not say you had to go looser than 5-5-5. Those other timings are not considered "loosening the timings" they have far far less effect on overall speed than they do stability.
  • UPSWeezerUPSWeezer Behind you... GENTLEMEN Icrontian
    edited November 2008
    I have that RAM but with Enhanced Bandwidth.:thumbup
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