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Core i5 2500 and 1600 memories

Hey folks,

I just installed 2 module of 4 gigs 1600 corsair memory on my asus p8p67 mainboard which is using a core i5 2500 cpu. I dont know why in bios the frequency of my memories is 1333.

Of course in bios (efi bios) in AI tweeker menu the memory frequency is set to auto and i can set it to any frequency like 1600 which is the main frequency of my memories.

Why in auto settings the frequency of my memories is 1333?

And is it okay if i set it manually to 1600?
Your help would be appreciated,
8 answers Last reply Best Answer
More about core 2500 1600 memories
  1. Yes, you can set it manually. I don´t know which ram kit you´ve got, but if it has XMP Profile, then it is the way to go -- if it is 1.5v.
  2. Thanks for your fast ram is xms3 8 gig (2*4gig) CMX8GX3M2A1600C9

    Is it okay?
  3. here is a forum that explains this. Basically the default memory speed for your CPU is 1333 and as Jemm explained, you should have no problems if you manually set this.
  4. Unfortunately, this kind of thing is still a problem with lots of hardware. You just need to set the speed (and potentially latency and voltage) manually.
  5. Best answer
    It's advertising :). Typically, DDR3-1600 will d fault to 1333 at 1.5 volts. You can manually set it to 1600 but this typically involves using the XMP setting, which oft boosts voltage to 1.65 volts. See manufacturer's instructions on setting manually which *may* require using the 1.65 voltage setting.

    An yeah, I know what everybody quotes from Intel saying that anything over 1.5 volts is a bad thing.....however rest assured that using 1.65 volts will not cause your beer to go bad in your refrigerator, your ar to blow its tranny, computer to go up in smoke or a need for you to get a doctor's prescription for ED.

    If you comply with MoBo manufacturers stipulations, you have no issues to worry about. And all the MoBo manufacturers will tell you 1.65 volts on SB is just fine and presents no warranty issues.

    Sandy Bridge does not demand only 1.5v modules, it will be perfectly happy with 1.65v modules too. If someone tries to tell you that you must have 1.5v modules, then they are either trying to sell them to you, or they have been reading misinformation, or both! Another point to consider here, is that in your BIOS, if you head to the memory voltage setting, and enter 1.5v, the text will remain white/grey, if you enter 1.65v, it will turn yellow, and it isn't until 1.73v that it turns red, so at the moment, I'd rest assured that 1.65v modules are OK to use, and I have had this confirmed by Asus, Gigabyte and Corsair so far, as soon as I hear from anyone else, I will update this again.
  6. Well. Friends thank you the DVD of the main-board , there is a useful utility . i installed it and run it and there was a button for setting a optimum performances.. all of a sudden the PC restart several times and it seems to me that this utility is checking the best performance according to the thermal condition of the system ....after 3 restarts , that utility informed me that you PC can be 30% overclocked...!! after that i saw that my Ram is working on 1666 and my CPU is allowed to work on 4.2 GHZ..!!!

    I LOVE it is working really nice....!!!thanks INTEL and ASUS and of course you friends.....
  7. Best answer selected by joopin.
  8. This topic has been closed by Nikorr
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