Can't run ram at proper speed when cpu overclocked

By princeton
Apr 4, 2010
Topic Status:
Not open for further replies.
  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: 1,128

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

    princeton TechSpot Addict Topic Starter Posts: 1,716

    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 TechSpot Addict Topic Starter Posts: 1,716

    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: 1,128

    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 TechSpot Addict Topic Starter Posts: 1,716

    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.
Topic Status:
Not open for further replies.


Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...


Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.