Memory cannot run at stock common?

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ImpGuard

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Mar 12, 2011
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Is this common?

My computer specs are:

Asus Maximus Hero
Intel i5 4760k
TridentX 16GB 2400 Mhz

With the base clock at 100 Mhz I set the timings to the appropriate 10-12-12-31-2, Multiplier to 24, and Cache Ratio to 48, with voltage upped to 1.65V. Yet, this cannot pass memtest, only reaches 15% (Memtest just freezes then). Is this common? I've already swapped memory 3 times for various reasons, and I'm wondering if I am missing something when it comes to the settings, or if I'm just incredibly unlucky. Thanks!
 
Solution
Tradesman1
When first installed the DRAM will run at the mobos default, to run it at it's settings the CPU has to be be running fast enough - the MC controller in your CPU is rated for 1600 - with turbo boost on it can normally carry 1866 sticks and at times 2133, for 2400 it normally takes 4.0 or better....I myself prefer to get the DRAM nice and stable before getting serious with OCing the CPU higher, but with fast sticks and Haswell, even IB, you can generally just set the CPU to 4.0 with basically no other adjustments needed (K model CPUs anyway)
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ImpGuard

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Yes, I flashed the latest bios before I began twiddling with the system. I set up via XMP then after it was unstable dialed the voltage up slightly. I should also mention I disabled all the power management features and turbo boost. As a follow up question, should RAM get MORE unstable after a voltage increase? I found that at 1.65V it seems to run around 20%, when I dial it up higher to 1.66 or 1.67V it freezes really early at 2 minutes. I currently dialed it back to 1.655V and its done even better, currently sitting at 30% and counting.

Quite confused.
 
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ImpGuard

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Wait, you need the CPU multiplier up for stability? The overclocking threads I've looked at advised:

1) lower cpu/ram multipliers to adjust base clock (though it seems like online base clock cannot really be changed??)
2) up the multiplier for ram to stock
3) up the multiplier for cpu until overclocked at some satisfying level

Is this bad advice?
 
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Tradesman1

Tradesman1

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When first installed the DRAM will run at the mobos default, to run it at it's settings the CPU has to be be running fast enough - the MC controller in your CPU is rated for 1600 - with turbo boost on it can normally carry 1866 sticks and at times 2133, for 2400 it normally takes 4.0 or better....I myself prefer to get the DRAM nice and stable before getting serious with OCing the CPU higher, but with fast sticks and Haswell, even IB, you can generally just set the CPU to 4.0 with basically no other adjustments needed (K model CPUs anyway)
 
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