Overclocking 2600k with p8z68 v pro mobo?

i have just updated the newest bios 3402 for p8z68 v pro, but the problem comes up with the ram that i used to getting it run on 1600mhz, but now it just reaches 1333 mhz though i have set up all things in the bios needed. No matter what divider i set up (ex.2113), it still shows only 1333mhz of ram.
thanks for the help.

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More about overclocking 2600k p8z68 mobo
  1. XMP profiles?
  2. cpu: i7 2600k
    ram: CMT4GX3M2A1600C7 (xmp yes), latency 77720, 1.65v. DDR3 1600 8GB
    mobo: p6z68 v pro, chipset z68
    original bios: 0402
    upgrade: 3402
    problem: no ram speed mentioned in the bios (n/a), only the capacity stated 8gb.
    the bios didn't work after updated.
  3. mobo: p8z68
  4. 1.65V on Intel is not really recommended anyways....
    do yourself a favor and get some 1.5V RAM.
    8-8-8-24 CL8 1.5V DDR3 1600

    (of course after you hopefully solve your problem..)
  5. 1.65v can actually damage the IMC. Intel will not honor the CPU warranty if you use it. You are overclocking the integrated memory controller by using it. Also the ix 2xxx series can have problems with anything lower than cas 8. Only really good chips will run cas 7 with no problems especially 7-7-7-20. That is probably very old DDR3 to have those specs.

    Drop the voltage to 1.55v and try DDR3 1600 cas 9-9-9-24 2T. You will see no difference in performance at all.




  6. I doubt that will work (adjusting timings that significantly) but worth a try....

    that RAM even though is XMP is not that good regardless of the fast timings.
    Corsair also runs on 2T command rate while most run on 1T so make sure you run CPU-Z and get the exact specs.
  7. Quote:
    I doubt that will work (adjusting timings that significantly) but worth a try....

    I don't. There is no problem loosening timings. It's going the other way that can cause issues. All you are doing by loosening the timings is underclocking what the RAM is rated at.
  8. and sometimes RAM will BSOD from being that far off timings, slight under-time I can see that working, relax too much on time and I do not think so.
    I guess we will see.

    not arguing and you might be right.. :)
  9. to my luck, having sucessfully updated the bios several times, now that i intend to go for my previous plan.

    let me tell you about my computer spec:

    mobo: asus P8Z68 V PRO
    chipset: z68 (socket 1155)
    ram: corsair CMT4GX3M2A1600C7 (support intel XMP 1.2)
    CPU: IT 2600K @3400mhz (oc@3800mzh). The ram speed max: 2133mhz (oc)
    GPU: ASUS GTX 560Ti ( 1GB GDDR5)

    Don't you think that it is worth buying the ram of 2400mhz in order for me to increase the ram speed at least to the maximum value 2133mhz?

    thanks in advance
  10. no RAM faster then 1600MHz doesn't give that great of gains, only slight..

    set it to XMP and then let's up the mullti.
    if the multi shows 'auto' then you should be able to arrow up if not enter in value.
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