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Can't run ram at proper speed when cpu overclocked

By princeton
Apr 4, 2010
  1. Hi,
    I run an asus p5q se plus motherboard with 8GB ddr2 800mhz ram and an intel core 2 duo E7500. The problem is when I overclock my cpu I can no longer run my ram at 800mhz(effective) speed and it runs at around 600mhz(effective) speed. I have tried just setting it at 800mhz but I always crash while booting. Any help would be appreciated.
     
  2. dustin_ds3000

    dustin_ds3000 TechSpot Chancellor Posts: 869   +8

    we need to know what BIOS settings you are using
     
  3. princeton

    princeton TS Addict Topic Starter Posts: 1,677

    Sure. Would there be a way to take screenshots or would I have to type them here?

    EDIT: Everything is at auto except the ram frequency and the FSB frequency.
     
  4. princeton

    princeton TS Addict Topic Starter Posts: 1,677

    Oops double post. OK I have 2 types of ram in there. They are both ddr2 800mhz and both ocz but different editions. And cpuid only reports one difference. Explaining it would be a nightmare so I toom some screenshots.
    Dwm 2010-04-04 19-53-32-41.jpg

    Dwm 2010-04-04 19-53-35-67.jpg

    As you can see under CAS latency one has each value 1 higher. Could this be causing issues and should I remove the ram?
     
  5. dustin_ds3000

    dustin_ds3000 TechSpot Chancellor Posts: 869   +8

    this is what im looking for, something like this.i know yours wont look like this but this is for my motherboard which is a P45 chipset like yours. also dont use Auto for voltages. DON'T USE THE SETTINGS I HAVE.

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:.0.5
    CPU Frequency ...........................: 4.009GHz (422*9.5)


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 422
    PCI Express Frequency (Mhz) .........: 100

    C.I.A.2 .................................:[Disabled]


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive.................: 900
    CPU Clock Skew (ps)....................: 0
    MCH Clock Skew (ps)...................: 0


    DRAM Performance Control
    Performance Enhance...................: [Extreme]
    Extreme Memory Profile (X.M.P.).....: Profile 2
    (G)MCH Frequency Latch...............: AUTO
    System Memory Multiplier ..............: 2.50A
    Memory Frequency (Mhz) ..............: 1055
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 15

    Advanced Timing Control
    tRRD........................................... [Auto]
    tWTR.......................................... [Auto]
    tWR............................................ [Auto]
    tRFC........................................... [Auto]
    tRTP........................................... [Auto]
    Command Rate (CMD) ....................: [Auto]

    Driving Strength Profiles
    Driving Strength ............................

    Channel A
    Static tRead Value.........................: [Auto]
    tRD Phase0 Adjustment...................: [Auto]
    tRD Phase1 Adjustment...................: [Auto]
    tRD Phase2 Adjustment .................: [Auto]
    tRD Phase3 Adjustment..................: [Auto]
    Trd2rd(Different Rank)....................: [Auto]
    Twr2wr(Different Rank)...................: [Auto]
    Twr2rd(Different Rank)...................: [Auto]
    Trd2wr(Same/Diff Rank)..................: [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]

    Channel B
    Static tRead Value.........................: [Auto]
    tRD Phase0 Adjustment...................: [Auto]
    tRD Phase1 Adjustment...................: [Auto]
    tRD Phase2 Adjustment .................: [Auto]
    tRD Phase3 Adjustment..................: [Auto]
    Trd2rd(Different Rank)....................: [Auto]
    Twr2wr(Different Rank)...................: [Auto]
    Twr2rd(Different Rank)...................: [Auto]
    Trd2wr(Same/Diff Rank)..................: [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]

    Motherboard Voltage Control
    Voltage Type.………... Manual
    LLC....................................:Enable
    CPU Vcore….……….........................: 1.32500v
    CPU Termination…............: Normal
    CPU PLL………………….....: Normal
    CPU Referen.…………........: Normal
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.26v
    MCH Reference….…….0.800V...........: Normal
    MCH/DRAM Ref.…......0.900V...........: Normal
    ICH I/O……………….....1.500V............: Normal
    ICH Core…………...……1.100V............: Normal

    DRAM
    DRAM Voltage ……....1.800V............:2.02V
    DRAM Termination .…0.900V............:Normal
    Channel A Reference 0.900V............:Normal
    Channel B Reference 0.900V............:Normal
     
  6. princeton

    princeton TS Addict Topic Starter Posts: 1,677

    Actually I got the ram running at 375mhz instead of 400 so im cool with that. 'll be buying a sandy bride cpu next year and this will tide me over till then.
     
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