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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 435

post #4341 of 4439
So overall that I must change.

TRAS = 38
TRFC = 420
TWR = 24
TFAW = 24
TRTP = 12 ??? or else...
post #4342 of 4439
Is this ok ? I will give it another shot now !!



Something must be incorrect.....

4200-3-7.jpg
Edited by Enterprise24 - 4/28/17 at 8:28am
post #4343 of 4439
Quote:
Originally Posted by Enterprise24 View Post

Is this ok ? I will give it another shot now !!
Warning: Spoiler! (Click to show)
Something must be incorrect.....
Warning: Spoiler! (Click to show)
4200-3-7.jpg

tFAW should = 4x tRRD(s). so at least 16. one error that far out could be cache. You should run HCI with one instance per thread. for your I5 that means 4 instances since it does not have hyperthreading.
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post #4344 of 4439
Quote:
Originally Posted by Jpmboy View Post

tFAW should = 4x tRRD(s). so at least 16. one error that far out could be cache. You should run HCI with one instance per thread. for your I5 that means 4 instances since it does not have hyperthreading.

I cannot set memtest to run 2000+ mb per thread. If I set 4 instances then it will only cover 50% of 16gb...
post #4345 of 4439
Quote:
Originally Posted by Enterprise24 View Post

I cannot set memtest to run 2000+ mb per thread. If I set 4 instances then it will only cover 50% of 16gb...

Use GSAT, it's free, set and go, and is faster.
post #4346 of 4439
Quote:
Originally Posted by Enterprise24 View Post

I cannot set memtest to run 2000+ mb per thread. If I set 4 instances then it will only cover 50% of 16gb...
yeah - gsat is best.

are you using the Pro version of HCi memtest?
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post #4347 of 4439
Quote:
Originally Posted by Jpmboy View Post

yeah - gsat is best.

are you using the Pro version of HCi memtest?

I have both free and pro but pro will not allow more than ~2000mb per instance like free version. Look like it is windows limitation (win 10 x64).
post #4348 of 4439
Quote:
Originally Posted by Jpmboy View Post

Quote:
Originally Posted by Enterprise24 View Post

Can anyone tell me that this is memory instability or cache relate ? 1 error at 330% Thanks in advance.

VCORE 1.365V set 1.344V actual
VCCIO 1.225V set 1.248V actual
VCCSA 1.275V set 1.296V actual
VDIMM 1.45V set 1.48V actual
Warning: Spoiler! (Click to show)

tRAS is too low. tRAS=CAS+tRCD+tRRP (+/-2) so 28 is too low and this causes the value to be set aribtrarly during POST to correct the timing error - and the corrected value is not shown by any OS software. The RAS window needs to be open long enough for all three operations to take place. You also have trp and faw (faw = 4x tRDD) set too low for cas being that high. ANd because of this the RTLs and IOLs are not aligned properly.

did you set those secondaries manually?
Hi Enterprise24, I believe Jpmboy meant tRAS=CAS+tRCD+tRTP (+/-2)
At your old settings with tRTP originally at 6
I think he meant minimum was 17-18-18-39-2T instead of 28 which was too low

Edited
Edited by misoonigiri - 4/29/17 at 7:51am
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post #4349 of 4439
I need a little help with the timings. Are there any mistakes with these settings when it comes to the recommendations/formulas?




I've previously had 15-15-15-35 1T with tRTP 10 which passed 2000+% MemTest and 8h GSAT, but as I've seen here the minimum for tRAS is 38.
tFAW should be 20 instead of 33 in my case? Anything else I need to change?
My RAM is Kingston HX424C12SBK2/16 with Hynix chips.
Is it weird that I've passed MemTest and GSAT with the previous incorrect settings?
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post #4350 of 4439
Quote:
Originally Posted by Frosted racquet View Post

I need a little help with the timings. Are there any mistakes with these settings when it comes to the recommendations/formulas? Warning: Spoiler! (Click to show)



I've previously had 15-15-15-35 1T with tRTP 10 which passed 2000+% MemTest and 8h GSAT, but as I've seen here the minimum for tRAS is 38.
tFAW should be 20 instead of 33 in my case? Anything else I need to change?
My RAM is Kingston HX424C12SBK2/16 with Hynix chips.
Is it weird that I've passed MemTest and GSAT with the previous incorrect settings?
Regarding tRAS you may want to read the discussion before & after this post,
http://www.overclock.net/t/1569364/official-ddr4-z170-z270-and-x99-24-7-memory-stability-thread/3750#post_25801780

Of course most of it is beyond me, but hopefully it is helpful to you smile.gif
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