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Thread: Abit IP35 OC advice please

  1. #1
    Join Date
    Oct 2007
    0 times in 0 posts

    Abit IP35 OC advice please


    I currently have the following setup:

    Abit IP35 Dark Raider
    Intel Core 2 4400 2.0ghz proc
    DDR2 2GB (2X1GB) 5300 667
    Nvidia 8800 GTS OC2

    I am looking to overclock the processor to 266fsb/2.66ghz. When I change the FSB to 266 the memory speed changes to ddr2-886 on default. When on default fsb 204 the ddr2 is 680.

    I can change the memory settings and have the following options:

    1:1.00 DDR2 532
    1:1.2.00 DDR2 638
    1:1.25 DDR2 666
    1:1.50 DDR2 798
    1:1.66 DDR2 886
    1:2.00 DDR2 1064

    Can anyone advise what settings I should choose. 1.1.25 ddr2 666 results in failure to boot and I have to clear CMOS. Am presuming if the ratio is currently 3:5 then i should choose 1:1.66 for ddr2 886 however thats over my memory speed so dont want to do anything when im not sure...

    CPUZ brings up the following more detailed information:

    CPU-Z 1.41 report file


    Number of processors 1
    Number of cores 2 per processor
    Number of threads 2 (max 2) per processor
    Name Intel Core 2 Duo E4400
    Code Name Conroe
    Specification Intel(R) Core(TM)2 CPU 4400 @ 2.00GHz
    Package Socket 775 LGA
    Family/Model/Stepping 6.F.2
    Extended Family/Model 6.F
    Core Stepping L2
    Technology 65 nm
    Core Speed 1224.2 MHz
    Multiplier x Bus speed 6.0 x 204.0 MHz
    Rated Bus speed 816.1 MHz
    Stock frequency 2000 MHz
    Instruction sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
    L1 Data cache (per processor) 2 x 32 KBytes, 8-way set associative, 64-byte line size
    L1 Instruction cache (per processor) 2 x 32 KBytes, 8-way set associative, 64-byte line size
    L2 cache (per processor) 2048 KBytes, 8-way set associative, 64-byte line size

    Chipset & Memory

    Northbridge Intel P35/G33/G31 rev. A2
    Southbridge Intel 82801IR (ICH9R) rev. 02
    Graphic Interface PCI-Express
    PCI-E Link Width x16
    PCI-E Max Link Width x16
    Memory Type DDR2
    Memory Size 2048 MBytes
    Memory Frequency 340.0 MHz (3:5)
    CAS# Latency (tCL) 5.0 clocks
    RAS# to CAS# (tRCD) 5 clocks
    RAS# Precharge (tRP) 5 clocks
    Cycle Time (tRAS) 15 clocks
    Command Rate (CR) 2T

  2. #2
    Join Date
    Jun 2004
    2 times in 2 posts

    Re: Abit IP35 OC advice please

    Rather than looking at the speeds next to the memory settings, just look at the ratios: for instance, 1:1.00 means that the memory speed is the lowest it can be (actually twice the FSB speed).

    Use something like: Memory speed = ratio x 2 x fsb speed

    While you're overclocking, set it to the lowest possible (1:1.00). If you want to increase the memory speed later, do it once you know what your motherboard and CPU will clock to!

  3. #3
    Join Date
    Oct 2007
    0 times in 0 posts

    Re: Abit IP35 OC advice please

    Perfect. Worked great thanks.

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