Xeon E5 V2 vs i7-49xx IMC

Discussion in 'Processors and Motherboards' started by Wasmachineman_NL, Dec 5, 2019.

  1. Wasmachineman_NL

    Wasmachineman_NL Dell Precisions FTW!

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    This might be a better question for a site like HWBOT, but whatever:

    Is the IMC on Ivy Bridge/V2 Xeons worse than on the i7-49xx equivalents of them? I have a Corsair DDR3-2400 kit on a ASUS Rampage IV Extreme with a E5-2620V2 and whatever I do I can't get my RAM to clock above 1866.

    Did I lose the silicon lottery on my CPU or are Xeon IMCs just garbage?
     
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  2. vanfawx

    vanfawx Active Member

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    Xeon IMCs don't allow for OC, as far as I know. The fastest ram that's supported on a v2 xeon is 1866.
     
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  3. Wasmachineman_NL

    Wasmachineman_NL Dell Precisions FTW!

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    So that's why I keep getting stuck on POST when enabling XMP?
     
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  4. vanfawx

    vanfawx Active Member

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    That seems likely. You'd need to switch to a consumer chip if you want higher memory speeds.
     
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  5. Wasmachineman_NL

    Wasmachineman_NL Dell Precisions FTW!

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    Are the unlocked Xeons (E5-16xx) also RAM OC locked?
     
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  6. vanfawx

    vanfawx Active Member

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    I do not know. My gut says no. @Patriot - any chance you can answer this question?
     
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  7. RageBone

    RageBone Active Member

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    My 1650V1 and 1650V3 aren't locked at all. I don't have the v1 in reach, but i can ASK the current owner if he is able to do RAM OC. I'm pretty certain that is the case.

    On the V3, ran my 3200cl14 TridentZs on xmp pretty well.

    Be aware that some xmp profiles ramp up the system agent voltage to a level that degrades the CPU rather quickly, possibly killing the imc after a while.
     
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    Tha_14, vanfawx and Wasmachineman_NL like this.
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