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Thread: Problems overclocking my core2duo.

  1. #1
    Senior Member Stubzz's Avatar
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    Problems overclocking my core2duo.

    First off here's the basic spec: e4300, P5B deluxe, 2gb 6400 DDR2.

    The highest overclock I've achieved so far is 320*9 = 2880. With a higher FSB the computer wont POST. I don't think this is because the CPU has hit its limit cos it wont post at 230-240*9 either. All I've changed is the FSB and vcore. There any 'magic' settings anywhere that I've missed?

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    Bows out! CAT-THE-FIFTH's Avatar
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    • CAT-THE-FIFTH's system
      • Motherboard:
      • Less E-PEEN
      • CPU:
      • Massive E-PEEN
      • Memory:
      • RGB E-PEEN
      • Storage:
      • Not in any order
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    I never had to change the vcore settings on my computer and I have an E4300 running at 3.0ghz.Have you tried loosening the memory timings and/or even changing the slots that the DIMMS are in??

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    Flat cap, Whippets, Cave. Clunk's Avatar
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    Did you manually enter your memory timings and subtimings?

    Have you set a divider that is too high for the ram?

    What vcore did you set? My E6600 needed a shedload to hit 3ghz.

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    Lover & Fighter Blitzen's Avatar
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    • Blitzen's system
      • Motherboard:
      • ABIT iX38 QuadGT
      • CPU:
      • Intel Quad Q6600 @ 3.6Ghz : 30 Degrees Idle - 41-46 Degrees Load
      • Memory:
      • 4 x 1GB OCZ Platinum PC6400 @ 4-4-4-12
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    Remember...even though each core is named the same, no 2 are alike.
    You may have just hit the wall for your CPU or RAM

  5. #5
    Senior Member Stubzz's Avatar
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    Havn't played with the memory timings as the RAM is technically underclocked atm so shouldn't make a difference. Will try moving the ram modules around.

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    • daza's system
      • Motherboard:
      • DFI P35 (the green one)
      • CPU:
      • X3210 @ 3.6ghz 1.38v
      • Memory:
      • OCZ Sli PC8500 @ 1050 mhz
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    What cooler you got and whats you vcore at??

  7. #7
    Senior Member Stubzz's Avatar
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    Quote Originally Posted by Clunk View Post
    Did you manually enter your memory timings and subtimings?

    Have you set a divider that is too high for the ram?

    What vcore did you set? My E6600 needed a shedload to hit 3ghz.
    Memory timings etc ive left to the bios to handle. Current Vcore is at 1.3 atm. Divider does what?

    AthlonXP's where much easier to overclock

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    Bows out! CAT-THE-FIFTH's Avatar
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    • CAT-THE-FIFTH's system
      • Motherboard:
      • Less E-PEEN
      • CPU:
      • Massive E-PEEN
      • Memory:
      • RGB E-PEEN
      • Storage:
      • Not in any order
      • Graphics card(s):
      • EVEN BIGGER E-PEEN
      • PSU:
      • OVERSIZED
      • Case:
      • UNDERSIZED
      • Operating System:
      • DOS 6.22
      • Monitor(s):
      • NOT USUALLY ON....WHEN I POST
      • Internet:
      • FUNCTIONAL
    My vcore is around 1.2v - loosen the memory timings as much as possible!!

  9. #9
    Flat cap, Whippets, Cave. Clunk's Avatar
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    You need to enter your memory timings, the P5B doesnt really like it if you dont.

  10. #10
    Senior Member Stubzz's Avatar
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    Memory timings have been entered manually and with lots of slack (is too much slack possible?). Still wont boot either over 320 or 240ish. Its the not booting at 240 that's really confused me.

  11. #11
    Flat cap, Whippets, Cave. Clunk's Avatar
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    Slack? what timings have you entered? What ram is it?

  12. #12
    Senior Member Stubzz's Avatar
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    It's 2*1GB Geil Value PC6400 rated for 5-5-5-15, which is set to 6-6-6-18

  13. #13
    Flat cap, Whippets, Cave. Clunk's Avatar
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    set it to 5-5-5-15 and if there are any subtimings available on the geil website, enter those as well, if not, leave them at stock.

    Take the memory off auto and put it on the lowest divider (1:1), which should read double the fsb, so if the cpu is 300, the ram will be 600.

    And have you entered the correct voltage for the ram?

  14. #14
    Senior Member Stubzz's Avatar
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    After changing all that it seems to be working fine now, just booted at 350.

    Thanks all, no doubt I'll be back later.


  15. #15
    Flat cap, Whippets, Cave. Clunk's Avatar
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    go into the cpu settings and make sure everything is disabled, that will help as well.

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