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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 254

post #2531 of 5482
Thread Starter 
Quote:
Originally Posted by Desolutional View Post

Corsair CMK64GX4M4B3333C16, 64GB (4x16GB) - Haswell-E 64GB

Desolutional --i7-5820K@4.3/4.0---2667Mhz-C12-12-11-28-1T----1.40v---SA 1.03v---Stressapptest----2 Hours
VCCIN: 1.92V
VCCIO: 1.20V
tRTP=1, tFAW=2, tWL=9, tREFI=23000, tRFC=300
Screenshots (Click to show)






what in the name of arbitrary ass-hattery are you doing with those settings?

Quote:
Originally Posted by stargate125645 View Post

I managed to get 13-15-13-33 3200 MHz stable in GSAT for 2 hours. Working on that second timing, but it's given me trouble this entire process.

Edit: No can do, it would seem. Don't know why, but that second timing won't go any lower.

I managed to get 14-16-14-34 3333 MHz stable as well. Time to bench the two and see which is better. I expect the 3200 to perform better from what others on here have said about 3200 and Haswell-E, but I'll let you know.

Glad you got there in the end, and at good speeds no less.
Edited by Silent Scone - 8/22/16 at 1:03am
post #2532 of 5482
Quote:
Originally Posted by Silent Scone View Post

what in the name of arbitrary ass-hattery are you doing with those settings?

No idea lol, doesn't really gain anything in the AIDA64 benchmark but it is stable for now. Will probably try to eek out 3200MHz later, but my IMC is quite poor. I'm confused as well. I have a niggling feeling that my tRTP and tFAW are massively broken though... wink.gif

Would memtest with row hammer diagnose RTP and FAW faults, or should I just stick with GSAT?
Edited by Desolutional - 8/22/16 at 1:12am
post #2533 of 5482
Thread Starter 
Quote:
Originally Posted by Desolutional View Post

No idea lol, doesn't really gain anything in the AIDA64 benchmark but it is stable for now. Will probably try to eek out 3200MHz later, but my IMC is quite poor. I'm confused as well. I have a niggling feeling that my tRTP and tFAW are massively broken though... wink.gif

The timings are invalid. These spacing are denoted in the ROG Timing guide in the OP, and have been covered a number of times already in here. Things like this just set out to confuse others
post #2534 of 5482
Quote:
Originally Posted by Silent Scone View Post

The timings are invalid. These spacing are denoted in the ROG Timing guide in the OP, and have been covered a number of times already in here. Things like this just set out to confuse others

Ah thanks, I'll go correct the timings and push another retest, will post back in a few hours. They should really update the BIOS descriptions, it'll make things easier if someone forgets to use the guide... redface.gif

I take it the DDR3 burst length and DDR4 burst length limit is the same? So all those equivalent rules still apply to DDR4?

As with tRRD, setting tFAW below its lowest possible value will result in the memory controller reverting to the lowest possible value (16 DRAM clocks or tRRD * 4).

That was why my settings still work I assume?
Edited by Desolutional - 8/22/16 at 1:26am
post #2535 of 5482
Fixed Timings Corsair CMK64GX4M4B3333C16, 64GB (4x16GB) - Haswell-E 64GB

Desolutional --i7-5820K@4.3/4.0---2667Mhz-C12-12-11-28-1T----1.40v---SA 1.03v---Stressapptest----2 Hours
VCCIN: 1.92V
VCCIO: 1.20V
tRTP=4, tFAW=16, tREFI=23000, tRFC=300

post #2536 of 5482
Thread Starter 
Quote:
Originally Posted by Desolutional View Post

Ah thanks, I'll go correct the timings and push another retest, will post back in a few hours. They should really update the BIOS descriptions, it'll make things easier if someone forgets to use the guide... redface.gif

I take it the DDR3 burst length and DDR4 burst length limit is the same? So all those equivalent rules still apply to DDR4?

As with tRRD, setting tFAW below its lowest possible value will result in the memory controller reverting to the lowest possible value (16 DRAM clocks or tRRD * 4).

That was why my settings still work I assume?

Yes these timing rules are universal, setting lower and have the system function is purely superficial, as Raja is implying in the guide. The timing dictates the the minimum time to send at least FOUR ACT commands, as is even implied in the number if looking at the name of the timing in the UEFI
Edited by Silent Scone - 8/22/16 at 4:48am
post #2537 of 5482
Quote:
Originally Posted by Silent Scone View Post

Quote:
Originally Posted by stargate125645 View Post

I managed to get 13-15-13-33 3200 MHz stable in GSAT for 2 hours. Working on that second timing, but it's given me trouble this entire process.

Edit: No can do, it would seem. Don't know why, but that second timing won't go any lower.

I managed to get 14-16-14-34 3333 MHz stable as well. Time to bench the two and see which is better. I expect the 3200 to perform better from what others on here have said about 3200 and Haswell-E, but I'll let you know.

Glad you got there in the end, and at good speeds no less.
I know I should be happy that I got to CL13, but that tRCD of 15 still pisses me off. I have a high VCCSA I can try tonight (most I've tried is +1.184V, but I've seen others with much higher), but if that doesn't work I'm going to leave it and focus on lowering all the voltages I can. I think I have some headroom left in VCCIO to come down still - not that my temperatures will improve by doing so.

As for the benchmarks, RealBench showed the 3200MHz 13-15-13-33-1T as better (175000 vs. 174000 system score), whereas AIDA64 showed the 3333MHz 14-16-14-34 to be the better performer despite the fact that the cache frequency is 25MHz lower for the 3333MHz RAM due to using a higher strap. I'm leaning towards going with the 3200MHz as temperatures are slightly lower overall with the lower strap.
Edited by stargate125645 - 8/22/16 at 1:05pm
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BladeRunner v3.0
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post #2538 of 5482
Thread Starter 
I would stay where you are after the fiasco you've had. However if not I would try 13-14-14 or 13-13-14. Setting tRP one clock higher instead may help
post #2539 of 5482
SilentScone, can you update my entry? Last one I couldn't get stable without raising voltages too high for CPU 4.8/4.5 and want an entry that I run on my PC 24/7. This one is RealBench, stressapptest and AIDA64 Extreme cache stress test stable. I ran them last night, forgot to make screenshots of RealBench and AIDA. I will run them again tonight and add screens. smile.gif

KedarWolf--TUF Sabertooth X99 motherboard--i7 5960x@4.7/4.4--CPU Adaptive 1.258v Additional Voltage--Cache Offset .353/1.213v-- RAM 3200Mhz C16-16-17-34-1T 1.41v--SA Offset .320/1.12v--CPU Input 1.92v--LLC 5--Stressapptest 1 Hour, RealBench Stress Test 1 Hour, AIDA cache stress test 3 hours. biggrin.gif





AIDA64 cache and memory benchmark, RealBench and AIDA64 cache stress test results below. biggrin.gif
Warning: Spoiler! (Click to show)








Hey peeps, Scone might have a life outside of overclock.net, these things happen from time to time, so maybe we can be considerate if they miss an entry or can't do it right away when we post one. 2cents.gif
Edited by KedarWolf - 8/23/16 at 3:23am
    
CPUMotherboardGraphicsRAM
Intel Core i7 5960X Asus Sabertooth X99 Gigabyte 1080 Ti Founders Edition Corsair LPX 
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Acer XB280HK 4K Gsync QNIX QX2710 LED 27" WQHD 2560x1440 Corsair AX1500i Thermaltake Core X9 
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1.2TB Intel 750 PCI-E SSD 2TB Western Digital Black EKWB Predator 360 With One Titan X In Loop. Windows 10 Anniversary Edition 
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Acer XB280HK 4K Gsync QNIX QX2710 LED 27" WQHD 2560x1440 Corsair AX1500i Thermaltake Core X9 
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post #2540 of 5482
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CPUMotherboardGraphicsRAM
Intel Core i7 5960X Asus Sabertooth X99 Gigabyte 1080 Ti Founders Edition Corsair LPX 
Hard DriveHard DriveCoolingOS
1.2TB Intel 750 PCI-E SSD 2TB Western Digital Black EKWB Predator 360 With One Titan X In Loop. Windows 10 Anniversary Edition 
MonitorKeyboardPowerCase
Acer XB280HK 4K Gsync QNIX QX2710 LED 27" WQHD 2560x1440 Corsair AX1500i Thermaltake Core X9 
MouseMouse Pad
MadKatz R.A.T. 8 Zowie 
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CPUMotherboardGraphicsRAM
Intel Core i7 5960X Asus Sabertooth X99 Gigabyte 1080 Ti Founders Edition Corsair LPX 
Hard DriveHard DriveCoolingOS
1.2TB Intel 750 PCI-E SSD 2TB Western Digital Black EKWB Predator 360 With One Titan X In Loop. Windows 10 Anniversary Edition 
MonitorKeyboardPowerCase
Acer XB280HK 4K Gsync QNIX QX2710 LED 27" WQHD 2560x1440 Corsair AX1500i Thermaltake Core X9 
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MadKatz R.A.T. 8 Zowie 
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