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post #11501 of 11593 (permalink) Old 02-13-2020, 10:27 AM
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Alright. Well, aside from starting at like 3466/3600, 1.5 vdimm/training voltage, 1.35 VCCSA/VCCIO, a 0.010-0.020v vcore bump, loose primaries and tightening them up one at a time, are there any other bios settings I could try to improve memory stability?

Thanks!
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post #11502 of 11593 (permalink) Old 02-13-2020, 10:49 AM
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So found all the options you mentioned but haven't had time to install any linux tests yet however do these look better:



Quote: Originally Posted by Jpmboy View Post
Yeah, there are a few odd timings in there. Are all but the primary timings set to auto? Is this at 1.45V? what VSA VCCIO for this specific set of timings?
THe RTLs look reasonable, but lets see how they adapt to these changes...
Suggestions:
tRAS to 40 or 44
tWR to 16
tRFC to 400
tFAW to 36 (when/if you can lower tRRD_S to 6 or 8, set tFAW to 4x tRRD_S)
tREFI to 31200

The 3rd timings (like tWRRD_sg and _dg) are ones we (or others here) will have input into once some of the basic timings are probed.

the AID64 ram test is pretty weak. Check the OP of this thread for some better, stand-alone programs like RamTest, HCiMemtest, or GSAT (run under the windows Linux subsystem - this is my go-to for ram stability).
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post #11503 of 11593 (permalink) Old 02-13-2020, 10:55 AM
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Quote: Originally Posted by Chobbit View Post
So found all the options you mentioned but haven't had time to install any linux tests yet however do these look better:
test it out then we can lower tRTP and RAS... 3rds later.

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post #11504 of 11593 (permalink) Old 02-13-2020, 11:20 AM
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Quote: Originally Posted by Jpmboy View Post
test it out then we can lower tRTP and RAS... 3rds later.
Thanks for all your patience and help, I know I've been at it for a few days now.

Sadly that failed quite quickly, tried 1.5v and same thing. However just trying to drop it to 17/17/44 seems to be lasting alot longer and stable.

If this works I may have to accept 4000mhz at CL16 is a a bit too much and I might drop to 1.45v & maybe 1.4v to see if CL17 is stable at lower voltages.

I suppose my question then would be [email protected] or [email protected]?

Also is 48 degrees C (120 degrees F) still okay during a stress? As that's what I'm getting at 1.5v

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post #11505 of 11593 (permalink) Old 02-13-2020, 11:30 AM
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Quote: Originally Posted by Chobbit View Post
Thanks for all your patience and help, I know I've been at it for a few days now.

Sadly that failed quite quickly, tried 1.5v and same thing. However just trying to drop it to 17/17/44 seems to be lasting alot longer and stable.

If this works I may have to accept 4000mhz at CL16 is a a bit too much and I might drop to 1.45v & maybe 1.4v to see if CL17 is stable at lower voltages.

I suppose my question then would be [email protected] or [email protected]?

Also is 48 degrees C (120 degrees F) still okay during a stress? As that's what I'm getting at 1.5v
I try to stay under 40c for the ram (B-die)
You are running the older configurator. Probably not a train smash.
Can the tRAS not come down more?

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post #11506 of 11593 (permalink) Old 02-13-2020, 02:29 PM
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Has any here figured out how to get passed the dram spd write option not being accessible when using a 7900x on the asus rampage extreme vi motherboard on here? I'm so tired of googling and reading at this point I'm going cross eyed.


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post #11507 of 11593 (permalink) Old 02-13-2020, 03:36 PM
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Quote: Originally Posted by Chobbit View Post
Thanks for all your patience and help, I know I've been at it for a few days now.

Sadly that failed quite quickly, tried 1.5v and same thing. However just trying to drop it to 17/17/44 seems to be lasting alot longer and stable.

If this works I may have to accept 4000mhz at CL16 is a a bit too much and I might drop to 1.45v & maybe 1.4v to see if CL17 is stable at lower voltages.

I suppose my question then would be [email protected] or [email protected]?

Also is 48 degrees C (120 degrees F) still okay during a stress? As that's what I'm getting at 1.5v
since it failed fast at 400c16 (before hitting the high 40s), it was not likely a temp problem for that failure. If it failed after 45C - you need to cool the stick only for the stability test since normal use will never run that hot in a decent case.
You can easily see if 3733c16 or 4000c17 is better with AID64 mem bench.

here's a simple bit length calc comparo (crude tho it is):
3733 16 0.27 4.29 6.16 21.16
4000 17 0.25 4.25 6.00 20.00
MHz CasL ns/cycle first bit 8bits 64 bits

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post #11508 of 11593 (permalink) Old 02-14-2020, 08:57 AM
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Could someone please tell me which one of these configurations would be better in theory. Reason I ask is if I go 16 tCWL instead of 18 i cannot run tRDWR at 12 and trfc at 336. Is it more important for me to priorize tCWL even it means other timings aren't as tight as they could be? How important is tCWL in general and does it have any specific impact in gaming? Not sure which profile to use basically.


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post #11509 of 11593 (permalink) Old 02-14-2020, 08:57 AM
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Still looking for advice on MCH FUll Check ...if I have MCH disabled but aslo have MRC fast boot disabled does that train the memory enough if the ram is stable in every stress test I run for many hours (HCI, GSAT, MT86, OCCT lare)? Even with much looser timings and much more voltage I can't even get 3800 15-16-16-38 stable for more than a couple passes of the previous tests with MCH enabled where as its stable for 4000% HCI, 5 hrs GSAT, 8 passes MT86 and 10 hours of OCCT large with it disabled.
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post #11510 of 11593 (permalink) Old 02-14-2020, 10:14 AM
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Guys - can you give me somekind of good starting point with OC my memory ?
4x8GB Patriot Viper Steel (b-die) 4000MHz XMP - 19-19-19-39-700-2T.
For now I'm using XMP profile but with manual - 1,41V 18-18-18-39-700-2T looks stable.
People told me that I have low LinX GFLOPS score - about 470GFLOPS now.

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