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Memory OC - unexpected

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I am overclocking my memory for a short but to me very important test i am doing. I have done my fair share of memory OCing and never encountered such stubborn stick. Using an p8z77-v lx, i5 2500k and 2x4GB ballistic sport sticks.

The stick defaults to 1600Mhz 9-9-9-24, at 1.6V it will do 1600Mhz 8-9-8-17 or 1866Mhz 9-10-8-32. At 2133Mhz it will not boot no matter the voltage or timings. Now, i wouldn't be surprised at that if for instance it took high timings like 13-13-13-40 to get it to run at 1866Mhz. But it can do that with fairly close to stock timings. I used to be able to boot at 2133Mhz with 1333Mhz office-grade sticks on this very system years ago so it surprised me that this sticks simply lock at 1866Mhz.

I would really like to finish this test and all i am missing is 2133Mhz, i would really hate to buy a new ram just for this last bit. So before i do that and buy new ram for 1 test only, i am wondering if someone has an advice on what else i can try to make this ram boot at 2133Mhz.

I did the usual things. Up to 1.7V ram, increased memory controller voltage, tried tweaking secondary timings (but its a lottery with those since i dont have any data as to which timings are even within spec for this ram), etc.
 

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I am overclocking my memory for a short but to me very important test i am doing. I have done my fair share of memory OCing and never encountered such stubborn stick. Using an p8z77-v lx, i5 2500k and 2x4GB ballistic sport sticks.

The stick defaults to 1600Mhz 9-9-9-24, at 1.6V it will do 1600Mhz 8-9-8-17 or 1866Mhz 9-10-8-32. At 2133Mhz it will not boot no matter the voltage or timings. Now, i wouldn't be surprised at that if for instance it took high timings like 13-13-13-40 to get it to run at 1866Mhz. But it can do that with fairly close to stock timings. I used to be able to boot at 2133Mhz with 1333Mhz office-grade sticks on this very system years ago so it surprised me that this sticks simply lock at 1866Mhz.

I would really like to finish this test and all i am missing is 2133Mhz, i would really hate to buy a new ram just for this last bit. So before i do that and buy new ram for 1 test only, i am wondering if someone has an advice on what else i can try to make this ram boot at 2133Mhz.

I did the usual things. Up to 1.7V ram, increased memory controller voltage, tried tweaking secondary timings (but its a lottery with those since i dont have any data as to which timings are even within spec for this ram), etc.
I've read a lot about all these "green" DDR4 2133 sticks that can oh gosh even 3200 (lol). IRL, I've never found such a bingo golden sample.
So what is advice for you - get some DDR4 setup with 2133 sticks - and chill out.
 
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I thought getting 1600Mhz sticks to boot at 2133Mhz was pretty common. Am i wrong in thinking that ?
probably needs some memory controller voltage, and I can't seem to remember what it is called on z77.
 

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I thought getting 1600Mhz sticks to boot at 2133Mhz was pretty common. Am i wrong in thinking that ?
Yes.

I've only had one or two kits start at 1600 that actually work at 2133. Binning higher speeds is done for a reason.
 

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BBSE was pretty flexible, most Hypers were pretty decent. Some PSC were ok. What do they do with 1.75v?
 
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I thought getting 1600Mhz sticks to boot at 2133Mhz was pretty common. Am i wrong in thinking that ?
I still have a kit of 1600MHz sticks that will boot & bench at 2133MHz - memtest86+ stable as well, helps a lot when they are optimised for the platform. This is on an old Lindfield socket board with an i7-860.
 
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The limit is around 1866-2133 for that chip.

You hit your chips limit thats all.

A 2600k or 3770k would prob do better
 
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@Launcestonian
might wanna start using sw thats for testing tweaked ram, not something designed for detecting defective ram.
i have never seen anything called memest, with anything after that (86/more), showing errors after running full test suite multiple times,
but things like HCI/TM5 throwing errors within minutes..
 
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I thought getting 1600Mhz sticks to boot at 2133Mhz was pretty common. Am i wrong in thinking that ?
1866 for ddr4 price - maybe.
not all these 1600s.. maybe, THOUGH, some kindda of "Corsair Dominator Platinum" when it wasn't just about RGB... MAYBE
 
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Are you on one pair or two?
I've had some DDR3 boards that will push 1600 down to 1333 like my Mushkin kit and it would be a struggle just getting it to post properly.
Then there are boards that will take a 1600 Ballistix kit and it will do 1866 with little to no trouble.
The 16GB G.Skill kit sitting in my rack does 2133 pretty well but if I add another kit it may downclock them to 1866. The FX memory controller is a bit weird.
 
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