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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 6

post #51 of 5443
Why not include some undervolted DDR3 sticks?
post #52 of 5443
Quote:
Originally Posted by Strife21 View Post

So I spoke too soon the the voltages seemed to help it post for a bit then got failed posts again. Dropped it down to 2800 from 3000 everything works fine.

I tried Dram voltage from 1.36v to 1.38v
VCCIO from 1.12v-1.20v
SysAgent from 1.12v-1.25v

Manually entered the timings and stuff too. I guess as good as I am going to get on this kit is 2800 even though it was working another board find at 3000. However this board is much better so, I'll take it.


What timings are you running for DDR4-2800?
I bought a G.Skill kit which runs at 15-15-15-35 @ 1.25v, I'm hoping I can tighten the timings to Cas 13 or 14 if I run them at 1.3 to 1.35v.

Still waiting on my CPU to arrive, so no idea when I'll be able to test that.
post #53 of 5443
Quote:
Originally Posted by Strife21 View Post

So I spoke too soon the the voltages seemed to help it post for a bit then got failed posts again. Dropped it down to 2800 from 3000 everything works fine.

I tried Dram voltage from 1.36v to 1.38v
VCCIO from 1.12v-1.20v
SysAgent from 1.12v-1.25v

Manually entered the timings and stuff too. I guess as good as I am going to get on this kit is 2800 even though it was working another board find at 3000. However this board is much better so, I'll take it.


Try Maximus Tweak Mode 1 in the DRAM timing page with the elevated SA and IO voltages.
post #54 of 5443
Quote:
Originally Posted by Raja@ASUS View Post

Try Maximus Tweak Mode 1 in the DRAM timing page with the elevated SA and IO voltages.

Well this has worked after extensive testing before I posted. Mode 1 in the dram timings page has let this memory run at its rated speeds and timings with no issues. With it enabled I can even leave the vccio and sys agent on auto and still have stability.

Thanks man.
    
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post #55 of 5443
Quote:
Originally Posted by Shadowdane View Post

What timings are you running for DDR4-2800?
I bought a G.Skill kit which runs at 15-15-15-35 @ 1.25v, I'm hoping I can tighten the timings to Cas 13 or 14 if I run them at 1.3 to 1.35v.

Still waiting on my CPU to arrive, so no idea when I'll be able to test that.

I was running the timings you have listed but at 1.35v. tweak settings mode 1 has resolved my issues tho.
    
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post #56 of 5443
Tweak Mode 1 uses a less aggressive set of memory sub-timings.
post #57 of 5443
Quote:
Originally Posted by Raja@ASUS View Post

Tweak Mode 1 uses a less aggressive set of memory sub-timings.

Would you also recommend these ASUS Tweak Modes when overclocking memory, lets say overclocking DDR4 3200 to reach 3600mhz, or is VCCIO and SA more relevant if the memory works fine at XMP settings on their default rated speeds?
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post #58 of 5443
Quote:
Originally Posted by Scoundrel View Post

Would you also recommend these ASUS Tweak Modes when overclocking memory, lets say overclocking DDR4 3200 to reach 3600mhz, or is VCCIO and SA more relevant if the memory works fine at XMP settings on their default rated speeds?

You will need to experiment to find out what helps more to stabilize the system. Could be one, the other, or both.
post #59 of 5443
Quote:
Originally Posted by Raja@ASUS View Post

You will need to experiment to find out what helps more to stabilize the system. Could be one, the other, or both.

I was just thinking that increasing the crazy-confusing sub-timings below the more common 16-18-18-36 -T2 timings would be nessesary pretty fast after increasing the clock speeds just a little bit.
I have tried just tinkering with speed by increasing DRAM Voltage @ 1.4v VCCIO @ 1.3v and SA @1.25v but my memory crapped out shortly after 3333mhz so i didnt bother at all after that. These Tweak modes might just be what takes me beyond 3500mhz.
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Samsung 850 EVO Corsair HydroCool H100i 2 Corsair SP 120mm Fans on the H100i radiator 2 Exhaust Case fans Corsair AF 140mm 
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Microsoft Windows 10  ASUS PG278Q ROG Swift 27" G-Sync Steelseries 7G Corsair Professional Series Gold AX750 
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post #60 of 5443
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EK XE 480mm EK Supremacy EVO 2x EK Supremacy VGA EK X-RES / D5 PWM 
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