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  Topic Review (Newest First)
06-02-2020 10:35 PM
munternet
Quote: Originally Posted by KrampusKlaus View Post
Thanks. I was able to change everything but the RTLs. Increased my read speed by a bit, but had a negligible effect on latency. Still was good and I'm praying that these setting will pass memtest lol.

Does anyone here have experience trying to reduce RTLs on an Aorus Z390 board? I can't seem to find the settings in BIOS. Is this a timing that Gigabyte 300 series boards auto train or something?
I don't know how to change the RTLs sorry but here's some numbers that work for me which might work for you
Very similar to what @Worldwin said

tWR 16
tWTR_L 8 controlled by tWRRD_sg (30)
tWTR_S 4 controlled by tWRRD_dg (26)
tRTP 8

tRDRD_sg 6
tRDRD_dg 4
tRDWR_sg lower as much as poss LAST
tRDWR_dg lower as much as poss LAST
tWRWR_sg 6
tWRWR_dg 4

If you can manually input these:
RTL 61-63-7-7-21-21 medium
RTL 61-62-7-6-21-21 tight
RTL 60-62-6-6-21-21 tighter

tREFI Auto and double it

Other numbers look ok
06-02-2020 09:43 PM
KrampusKlaus
Quote: Originally Posted by Worldwin View Post
See if you can get RTL lower. Using the z370 gaming 7 i was able to get them to 68 for the RTL's for 4000 16 16 16 44. I believe that should help. Try to lower tFAW/tCWL @ 14/14. Try lowering the tertiaries labeled with _sg/_dg. Lowering tWRDDS_sg/_dg will define tWTR_L/_S.
My guesses for you to try:tRDRD_sg/_dg to 6/4
tRDWR_sg/_dg to 12/12
tWRRD_sg/_dg to 30/26
tRTP to 10
tWRWR_sg/_dg to 6/4
My guesses for you.
Thanks. I was able to change everything but the RTLs. Increased my read speed by a bit, but had a negligible effect on latency. Still was good and I'm praying that these setting will pass memtest lol.

Does anyone here have experience trying to reduce RTLs on an Aorus Z390 board? I can't seem to find the settings in BIOS. Is this a timing that Gigabyte 300 series boards auto train or something?
06-02-2020 09:10 PM
Worldwin
Quote: Originally Posted by KrampusKlaus View Post
Rig:
SNIP
And yes, my desktop background is a pile of raccoons dueling with Kylo Ren.
See if you can get RTL lower. Using the z370 gaming 7 i was able to get them to 68 for the RTL's for 4000 16 16 16 44. I believe that should help. Try to lower tFAW/tCWL @ 14/14. Try lowering the tertiaries labeled with _sg/_dg. Lowering tWRDDS_sg/_dg will define tWTR_L/_S.
My guesses for you to try:tRDRD_sg/_dg to 6/4
tRDWR_sg/_dg to 12/12
tWRRD_sg/_dg to 30/26
tRTP to 10
tWRWR_sg/_dg to 6/4
My guesses for you.
06-02-2020 08:52 PM
KrampusKlaus Rig:
i7 9700k @ 5.0ghz core, 4.7ghz ring (capable of 5.1 core 4.8 ring, but I'm already completely GPU bound in games, so no sense making it sweat)
Aorus Z390 Ultra
Team Dark Pro 2x8 3200mhz CL14 at 4000mhz 16 18 18 38 T2 1.46V

I've been tinkering with this setup for a few months now, on and off, and the above primary timings are the best that I can do at any voltage to achieve a 4000mhz memory overclock with these 2 dimms. I can't seem to get 4133 or higher stable. 4000 16 16 16 and 16 17 17 will boot, but not even 1.5V will prevent memtest HCI from spitting out errors. Tried T1, will not boot at any voltage.

Downloaded Aida64 for the first time, running a trial version just to test latency. 3200 14 14 14 31 seems to give me about 47ns latency. 4000 16 18 18 38 gives me just under 45ns latency.

My goal now is to see if there's any additional secondary and tertiary timings that I can tune that might improve latency. Any suggestions? Thanks

And yes, my desktop background is a pile of raccoons dueling with Kylo Ren.
06-02-2020 07:18 PM
ttnuagmada Anyone see any easy improvements i could make? I think I've about reached the edge of stability with these. I'm only about 30% sure about what I'm doing.
06-02-2020 04:09 PM
SgtRotty
Quote: Originally Posted by The Pook View Post
Quote: Originally Posted by newls1 View Post
I love a good blowing.....

even a bad blowing is still pretty good.
Just wanted to give a thumbs up!
06-02-2020 01:11 PM
CptSpig
Quote: Originally Posted by The Pook View Post
even a bad blowing is still pretty good.
Dirty, Dirty, Dirty
06-02-2020 12:39 PM
The Pook
Quote: Originally Posted by newls1 View Post
I love a good blowing.....

even a bad blowing is still pretty good.
06-02-2020 12:05 PM
sinquisitor Hello, I'm new here. Anyway, so I have this ram kit here (4 kits), and Maximus XI Hero, and it won't run at its rated 4000mhz cl19 speed when all 4 slots are filled.

https://www.kingston.com/dataSheets/HX440C19PB3_8.pdf

My cpu is a [email protected],9 with offset voltage +0,005 and LLC4, cache is at 46x. The ram's behaviour is the same on both stock and overclocks on the cpu, so I don't think cpu oc is the issue.

The ram kit above is QVL supported by XI Hero on 1,2 and 4 dimm configurations. However, when all 4 dimms are active, ram won't do [email protected] In fact, it's so bad, even the RAW MHZ profile won't work on ANY vccsa/io levels up to 1.35 on both, and dram up to 1.5v. I don't know why it'd error out like that because JEDEC speed as well as the second XMP profile which is [email protected] definitely works, at around 1.15V on both VCCSA and IO. I didn't test them at voltages lower than 1.15, maybe they'll even work then. So they CAN work with all 4 slots filled up to 3600 but not at 4000. In fact, I remember trying 4000mhz XMP profile on lower speeds such as [email protected] 21 21 42 and I remember those settings not being stable as well. Why would the board lock itself past 3600 when 4 slots are filled? The thing is, the rams are great. At least I think they are. I bought 2x8 first and overclocked them to 4000 XMP with no issues. It will even do 4266 with voltage adjustments, I figured since this is a T topology board, rams will overclock better if I added 2 more. I tested the new 2 kits on their own, and they can also go to 4000, even 4266. But when I combine all of them, memory errors in windows occurs, passmark hammer test fails, hci memtest fails, merely downloading a file through google chrome creates problems on XMP at even ridiculous voltage levels let alone normal levels.

I must say, this has been bugging me for a month and I'm at the end of my rope. I know the speeds can be done because 2x sticks work and 4x sticks post, go into windows but create problems/corruptions in my OS. So something needs to be tuned probably. I know next to nothing about secondary-tertiary and RTL-IO latency timings so on all of my tests I left them on auto. I also didn't touch memory training algorithms, so they are as is, as well. Maybe I should enable all of the training algorithms and then the motherboard will figure out the rest of the timings? Or do I need to do manual adjustment on tertiaries/RTLs? I have no idea, which is why I need help on this from someone expert on timings. Thanks for reading.
06-02-2020 09:23 AM
OLDFATSHEEP
Quote: Originally Posted by SuperMumrik View Post
Nice! Do you have any Aida64 results for the 4800 Micron 2x16GB SR kit?
Here you go
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