Over clocking asus p7p55d motherboard

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  1. Posts : 2,036
    Windows 7 Professional x64
       #11

    chev65 said:
    nate42nd said:
    P55 boards call for memory that is 1.5-1.65 volts (a lot of them....if not all)

    If that memory says 1.8V.....you may need to send it back and get 1.65V memory. I would go with that qualified vendors list. They will have specific memory kits listed. I would go with one of those, although you can probably go with ANY....as long as it's 1.65V and the correct speed and dual channel.
    Hmmm I think I already mentioned that.
    I was typing when you posted chev65, didn't want to "steal your thunder"

    Duncan said:
    Well what I was trying to say is that as far as I can see, my memory is listed in the qualified vendors list and it says that it is 1.8v in the QVL so surely it must be okay. but it says in the QVL that the timings are 1333-9-9-9-24 so does that mean that the max the board can handle is 1333???

    Hi chev65, I had a look in the Bios but couldn't find anything that said SMP profile, might it be called something else??

    There is a DRAM Frequency setting which is the one I previously changed to 1600MHz. It is currently set to the default - auto. And auto is making the RAM run at 1067. In the info about the DRAM Frequency setting it says: Forces a DDR3 frequency slower than the common tCK detected via SPD.

    There is also a DRAM voltage setting which is also set to auto.
    If you have a link to the memory, it would help. This is a common thing now with P55 boards out now. I have heard of a lot of people needing to send their memory back and get 1.65V memory. Good luck to you. I hope it works out.
      My Computer


  2. Posts : 62
    Windows 7 x64 Ultimate
    Thread Starter
       #12

    nate42nd said:
    If you have a link to the memory, it would help. This is a common thing now with P55 boards out now. I have heard of a lot of people needing to send their memory back and get 1.65V memory. Good luck to you. I hope it works out.
    it's on this page

    Welcome to Corsair :: Phenom II Memory

    4th from the top.

    TW3X4G1600C9D

    I didn't know that there is different memory for each processor type it looks like it is supposed to be for an AMD. maybe this is the problem.

    and I got it from here:

    Scan.co.uk: TW3X4G1600C9D - 4GB (2x2GB) Corsair Dominator DDR3, PC3-12800 (1600), 240 Pin, Non-ECC Unbuffered, CAS 9, DHX


    but the code in the user manual qualified vendors list is

    TW3X4G1600C9DHXNV

    which is the same with HXNV on the end

    the more i learn the more confused I'm getting.

    Thanks for the help Nate!
      My Computer


  3. Posts : 2,036
    Windows 7 Professional x64
       #13

    This memory was optimized for AMD Phenom II.

    If you can get it stable....good luck.

    You need to send it back if you still can. If you are running it on a P55 board with an i7860 you will need 1.65V dual channel memory.

    This would be perfect.

    Newegg.com - CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C9 - Desktop Memory
      My Computer


  4. Posts : 62
    Windows 7 x64 Ultimate
    Thread Starter
       #14

    nate42nd said:
    This memory was optimized for AMD Phenom II.

    If you can get it stable....good luck.

    You need to send it back if you still can. If you are running it on a P55 board with an i7860 you will need 1.65V dual channel memory.

    This would be perfect.

    Newegg.com - CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C9 - Desktop Memory


    UPDATE

    I have clocked the memorry up to 1333MHz 1.8v and it is running stable.

    I have sent my supplier an email asking for advice and requesting an exchange if needed.

    Also I have looked on the intel specification for the i7 860 and it says Memory Type - DDR3 1066/1333

    Nate, I see you are running an i7 860 too. Does this mean the max frequency that can be used with an i7 860 is 1333MHz, aren't you using 1600MHz?
      My Computer


  5. Posts : 18,404
    Windows 7 Ultimate x64 SP1
       #15

    As already mentioned...Intel specs say you risk damaging your cpu going over 1.65v with the memory (dram bus voltage). I'm sure it's possible to do so given the right oc'ing tweaks, but if you're a beginner, it's not wise.
      My Computer


  6. Posts : 62
    Windows 7 x64 Ultimate
    Thread Starter
       #16

    Airbot, I saw that people have offered me this advice, but I can't find the specs that say this. I'd like to be able to have the specs when I next hear from my supplier so that I can show them that I need to exchage the memory.

    this is the spec I found on the intel site and I don't see memory voltage mentioned:

    Intel® Core? i7-860 Processor (8M Cache, 2.80 GHz) with SPEC Code(s) SLBJJ

    and there is nothing in the booklet that came with the processor.

    Thanks,
      My Computer


  7. Posts : 18,404
    Windows 7 Ultimate x64 SP1
       #17

    You can look it up. Do a search of intel cpu 1.65v or core i7 1.65v and you'll find it mentioned.

    It also says it in your motherboard manual, and the QVL memory list.

    Here's your specific mobo manual - look at 2.4.2 and 3.5.14 in the manual.

    Attachment 42945
      My Computer


  8. Posts : 62
    Windows 7 x64 Ultimate
    Thread Starter
       #18

    Airbot said:
    You can look it up. Do a search of intel cpu 1.65v or core i7 1.65v and you'll find it mentioned.

    It also says it in your motherboard manual, and the QVL memory list.

    Here's your specific mobo manual - look at 2.4.2 and 3.5.14 in the manual.

    Attachment 42945

    Thanks, that is pretty conclusive. I'm confident that I should exchange my memory. In the mean time i've set the DRAM Frequency and Voltage back to auto so that the voltage is low.
      My Computer


  9. Posts : 18,404
    Windows 7 Ultimate x64 SP1
       #19

    Probably the best. If you want to stay with dominators, you might try these, should be same price. 1.65v
    CORSAIR DOMINATOR 4GB
      My Computer


  10. Posts : 62
    Windows 7 x64 Ultimate
    Thread Starter
       #20

    Airbot said:
    Probably the best. If you want to stay with dominators, you might try these, should be same price. 1.65v
    CORSAIR DOMINATOR 4GB

    I bought the Dominator because it was in a deal of the day offer and so wasn't any extra cost. Are there any real benefits to Dominator over the standard range? It looks like it is about £30 more than the Dominator I currently have. It also has a CAS 8, the version I have now has CAS9 so its one better. It seems all corsair RAM has lifetime warrenty so the only question is will it perform any better?

    This is the same as the link you gave but for the XMP version:

    Scan.co.uk: CMD4GX3M2A1600C8 - 4GB 2x2GB Corsair XMS3 Dominator DDR3 PC3-12800 (1600), 240 Pin, Non-ECC Unbuffered, CAS 8, XMP, DHX
      My Computer


 
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