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AMD OC'ing Enthusiast
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What speeds have you seen over the years?


Curious how this delicate platform (specifically 5820k and 5930k, 1st blood of this chipset) has either spoiled or gone like wine.




Im currently on cheap Corsair 3000 CL15, and the 5820k took quite some tweaking to get to there with 4ghz core, 3500mhz cache. 5930k didnt really mind as much, just needed a bump to system agent, else does great at 4.5ghz, 4ghz cache, and nothing else for the most part. 4 sticks each, not 8.





Anyone ever find a good set of memory that seems to always "just work" without a bunch of tweaking?




No upgrades planned, and definitely not doing a platform upgrade anytime soon.


Just thinking about my system. And might try to bump up the memory capacity at same time.
 

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hello,
if i remember correctly the highest xmp frequencies were 3200 mhz probably with CL15 or 16... x99 memory overclocking was always weird. i originally wanted to use the xmp of my memory kit too which is 3000 mhz CL15 but didnt want to mess with the cpu strap because im not sure if it messes with other system frequencies.

have a great day!
 

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The better memory for X99 would be the 3200 14-14-14-31(32) B-die memory kits. Simply enabling xmp should usually get them working. And If imc is good maybe you could tighten the timings to 13-13-13 or increase frequency to 3333 or 3400 keeping stock timings with no increase or with small increase in voltaje.

Trimis de pe al meu Pixel 2 XL folosind Tapatalk
 

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The better memory for X99 would be the 3200 14-14-14-31(32) B-die memory kits. Simply enabling xmp should usually get them working. And If imc is good maybe you could tighten the timings to 13-13-13 or increase frequency to 3333 or 3400 keeping stock timings with no increase or with small increase in voltaje.

Trimis de pe al meu Pixel 2 XL folosind Tapatalk
Recently upgraded my RAM in a 5820k (MSI X99 MPower Mobo). Went with Samsung B die, 3200CL14 memory. Even on the most recent bios, I had issues. Had to run at 2666mhz.
 

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I upgraded to some cheap Gskill ddr3000 CL15 stuff last year. 4x8gb. Ended up being Hynix CJR. I could not get it to run ddr3000 to save my life. Finally switching to the 125 bclk strap got it to work... for a bit until it BSOD'd on me while gaming a week or two later. Found out the 125 strap jacked my system agent voltage sky high. I can't remember if I ever got ddr3000 @ 100 bclk and sane SA voltage to work or not.

The ddr3200 setting on the other hand booted up first try. No drama, no crazy Been running ddr3200 14-17-17-34 1T with SA = 1.05v rock solid ever since. Try the ddr3200 if you haven't yet. May be easier to run than ddr3000.
 
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Overclocker in training
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Hi,
Never pushed my trident-z 3200c14 4x8gb kit on x99 5930k past default manual timings and 3200
Just happy it ran it at rated speed where as it had trouble running corsair dominator 4x4gb kit 2666c15 at it's rated speed.
 

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if i want to go for 3000MHz then its necessary to put the cpu strap to 125MHz, is that correct? but increasing the cpu strap also increases the system frequencies (e.g. pcie clocks) or is there an error in my thought process?
 

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if i want to go for 3000MHz then its necessary to put the cpu strap to 125MHz, is that correct? but increasing the cpu strap also increases the system frequencies (e.g. pcie clocks) or is there an error in my thought process?
Hi,
Just using broadwell-e bios exaggerates voltages on haswell-e and broadwell-e chips
Haswell-e bios on haswell-e chips doesn't.
 

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Discussion Starter #10
on this asrock killer 3.1, either 100 or 125mhz strap works fine. Im on the BIOS directly previous to the security fixes, to help maintian some performance, and I deleted or renamed the intel microcode they baked into an update.


The original "shipped" bios on this board did not even boot up period, I thought it was dead.


a seperate single stick of ddr4 1866 ram allowed me to get inside the BIOS, update it, set up some settings, then I shut down and installed the corsair ram. Initially, set it for 2400 CL15, and let it self "learn"


Asrock did a bit of a slacker job on this board, it was painful at first to get going.




BUT, I have to say, once you find the correct mix of ram settings, it does not try to re-learn ram all the time, unless it fails bootup. A nice thing to have, no memory retraining every boot.




It does however, impact when secondary timings SUCK, and you are trying to figure out if it was your own touch, but on the second or third reboot, "fixes" itself with re-training like normal, and suddenly its great.






Been rock solid for 6+ months, and this 5930k at 4.5ghz and quad channel ram eats games for breakfast with my 1080 TI.


If intel really wants to hold the gmaing crown for much longer, they NEED to introduce quad channel ram into mainstream. Even AMD could benefit GREATLY on ryzen, look at the difference it does for threadripper!!
 

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I picked up 4 kits of TridentZ Sammy-B 3866 'native' for various builds, ranging from a 2nd gen Threadripper to a Skylake to retro-builds such as the 2011v3 X99 5960X. There, I run 32GB at DDR4 3360 (3333 + fsb) and 14-14-14... error free at 1.35v, though anything faster starts to generate an error, likely due to the memory controller in the 5960X reaching its limit
 

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3200c13 on 5960x and 3400c13 on 6900k.

jpmboy learned me to tweak memory on x99 :D
 

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Discussion Starter #13
on x99 chips, is the tRFC and tREFI timings/values directly related to voltage used? as in, if I crank the voltage up, will those vlaues scale? or are there other timings that need adjustment?


My values are pretty mediocre, tRFC is at 525, and tREFI is at 8400. This was done for minimizing stability issues, but I have not really gone back in, as whenever I tweak, I seem to have a downward spiral for hours until something clicks and its happy.


I blame it on this Asrock, as the ASUS rampage V extreme I gave to my brother with companion 5820k had absolutely zero trouble knocking out tRFC 374 and tREFI 12000 with same voltages
 
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I've been playing around with new 4400 CL19 (Viper Steel) kit on my X99 Sabertooth+6900K setup and while there is no way in the world I will ever boot 3600, 3400 works fine and can go as low as 13-13-13-39-239 1.45V, which compared to my previous Crucial 3000 15-16-16-36-540 1.35V brings around 17% improvement on the latency and speeds in benchmarks like AIDA64, and around 10% in CPU bound scenarios in games, which is massive. Only tRAS is a bit strange because I can lower it infinitely without any affect on stability and performance, so something is wrong here, but aside from that it really turned out great.
 

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i just got some bdie and run CR1-14-14-14-34 with standard volts, nothing overvolted now, and find that it is absolutely fine for the platform, quick snappy lag free and 52ns
only way to get faster is an entirely new platform in the 100GB/s region.
 
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be careful. look at your SA and IO voltages. If you leave them on auto, your voltages might get too high.

In my experience. 2400/2667/3200 are stable on haswell-e, might need to increase SA voltage. 3000 is less stable than 3200. 3200 is about the max speed x99 but some people have reported 3400 working, usually on broadwell-e. haswell-e's write and copy memory speed don't scale past 50gb/s, seems that core frequency and cache speed limits them.
 
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Here are AIDA64 scores on 6900K 4.4 GHz with 4.5 GHz favorite core, DDR-3400 13-13-13-39-240-T1 1.45V with some secondary timing tuning, sticks are Patriot Viper Steel 4400 19-19-19-39




Cannot boot anything higher and SA and IO voltages do not help at all, so I keep them very close to stock.
 
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Passed a LinpackXtreme V1.1.3 30GB test using 3200Mhz CR2-13-13-13-33-561 1.35V
Processor melts heh!
 
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