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OC RAM , overvolting?

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  • Overclocking
  • DDR3
  • RAM
Last response: in Overclocking
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a b K Overclocking
October 16, 2014 5:55:51 AM

i am not sure that is even the correct term, over volting. I am looking to pick up an 4650k, and stock it runs DDR3 1600 RAM, if i want to run faster, the RAM can not be the stock 1.5 volts. I know nothing about OC'ing ram, and voltage. Any OC'ing i did was messing with multipliers on the CPU. Any advice? Can I just purchase a capable mobo and somehow select 1.65 volts as an option ? I do not ppost often, id call my skill level slightly better than novice.

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a b K Overclocking
October 16, 2014 6:01:33 AM

You will achieve minimal tangible gains overclocking your RAM on an i7. Reviews have shown that pretty much anything over 1333Mhz at decent timings will net you 99% of the performance of anything faster (with a few very specific exceptions). If it were me, I wouldn't generate the extra heat, leaving everything stock and experiment with lowering timings and testing for stability.
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a b K Overclocking
October 16, 2014 6:01:38 AM

There's no 4650k, and about RAM:

The MoBo will run ANY RAM stick it can support (no matter if its 1600MHz or 2800Mhz) on 1600MHz stock speeds. Forget about voltage.

There's an option for XMP profile in the Memory section of BIOS, where we can manually assign the speeds and timings (provided the sticks we have support them) for them to run at the stated speeds.

And, some memories (very costly) may have 1.5V at 2400MHz (like Corsair DP), and some may have 1.65V, but that won't make a difference as enabling XMP Profile 1 would enable higher voltage than Haswell recommended.

For eg, if your MoBo is Z97-A, CPU is 4690k, sticks are 2133MHz Tridents (1.6V), then, you'd need to enable XMP from BIOS and manually put in the timings and speeds to run them at stated speeds.
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a c 167 K Overclocking
October 16, 2014 6:02:12 AM

Yes on a good board there are options to set ram voltage.
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