P4 prescott C 2.4 @ 3ghz abit vt7 agp/pci locked to 66/33

By SOcRatEs
Oct 5, 2005
  1. I succefully locked apg/pci to 66/33
    using the ratio's in the bios.
    ddr400 @ 402
    GPU OC'd @ 425/1.10
    Seems very stable so far, no bench test yet.
    PC pitstop results
    I installed a zalman vga cooler vf700-cu
    dropped my gpu temp 25°f

    idle Temperatures
    Motherboard 30 °C (86 °F)
    CPU 33 °C (91 °F)
    GPU 45 °C (113 °F)
    GPU Ambient 36 °C (97 °F)

    CPU Type Intel Pentium 4, 3000 MHz (18 x 167)
    CPU Alias Prescott
    CPU Stepping E0
    Instruction Set x86, MMX, SSE, SSE2, SSE3
    Original Clock 2400 MHz
    Min / Max CPU Multiplier 14x / 18x
    L1 Trace Cache 12K Instructions
    L1 Data Cache 16 KB
    L2 Cache 1 MB (On-Die, ECC, ATC, Full-Speed)
    CPU Properties
    CPU Type Intel Pentium 4
    CPU Alias Prescott C
    CPU Stepping E0
    Engineering Sample No
    CPUID CPU Name Intel(R) Pentium(R) 4 CPU 2.40GHz
    CPUID Revision 00000F41h

    CPU Clock 3005.83 MHz (original: 2400 MHz, overclock: 25%)
    CPU Multiplier 18.0x
    CPU FSB 166.99 MHz (original: 133 MHz, overclock: 26%)
    Memory Bus 200.39 MHz

    CPU Cache
    L1 Trace Cache 12K Instructions
    L1 Data Cache 16 KB
    L2 Cache 1 MB (On-Die, ECC, ATC, Full-Speed)

    Motherboard Properties
    Motherboard ID 08/27/2004-PT880-8237-6A7L2A19C-14
    Motherboard Name Abit VT7 (5 PCI, 1 AGP, 4 DDR DIMM, Audio, LAN)

    Chipset Properties
    Motherboard Chipset VIA Apollo PT880
    Memory Timings 2.5-4-4-9 (CL-RCD-RP-RAS)
    Command Rate (CR) 2T

    Any suggestions on ram timmings?
    SPD Memory Modules
    DIMM1: Infineon AED660UD00-500C88X 512 MB PC3200 DDR SDRAM (3.0-3-3-8 @ 200 MHz) (2.5-3-3-7 @ 166 MHz) (2.0-2-2-6 @ 133 MHz)

    Graphics Processor Properties
    Video Adapter BFG nVIDIA GeForce 6800 GT OC
    GPU Code Name NV40GT (AGP 8x 10DE / 0045, Rev A1)
  2. Blakhart

    Blakhart TS Rookie Posts: 353

  3. SOcRatEs

    SOcRatEs TechSpot Paladin Topic Starter Posts: 966

    Good thread!

    Not a bottle neck I'd want to mess with.
    It's still running stable.
    Runs Unreal II awakenings very well @
    1280x1024 32 all settings high.
    I will try a bench mark in the morn...
    Thankz for the lead on the thread! Blakhart
  4. Blakhart

    Blakhart TS Rookie Posts: 353

    Well, I think one should reduce mem timings if they can do so with stability. Just because mem is rated by the factory at 8/3/3/3 does not mean that it can't do better, and I always shoot for 6/2/2/2 no matter what the fsb is, if that set is unstable, I do the next; 7/2/2/2 and test again, ad infinitum. Upping the voltage to memory can help. I use memtest exclusively, and with it find the mem timings that reduce latency to the bare minimum, while resulting in best bandwidth for that specific system's mem and fsb.
    I feel that reducing mem timings/latency is needed for any online activity that demands absolute responsiveness. This includes fps games and flight sims.
  5. SOcRatEs

    SOcRatEs TechSpot Paladin Topic Starter Posts: 966

    As minimal an OC (26%+ 600mhz increase), it's amazing how stable and cool
    my system is running! Not alot of noticable system speed increase.
    The zalman vga cooler dropped the 6800 temps (under load) to no higher than
    117f, it used to be 146f. unreal II, UT2004

    I messed around in the bios, and could not find a higher ratio that locked
    the agp/pci @ 66/33.
    What can I expect from value MoBo?

    VIA never came out with a working lock for the
    North Bridge VIA Apollo PT880 chipset. Abit vt7
    I now this cpu can go to 3.6/7 with good cooling but I'm looking around for
    intel chipset to do it.
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