Z490 fast ram experiences

[Arctucas]

<SNIP>



No doubt about that. As we can see here Auto is doing crazy high voltages for me here, not a fan. Think I'm going to sell the 4500/18 ram.

Does the motherboard have Adaptive VCore?

 

[fusseli]

Does the motherboard have Adaptive VCore?

Yes. It has auto, where it scales vcore for intel speedstep at lower clocks, and it has adaptive.

I am doing much better on the CPU temps now. Just ran Intel XTU a couple hours again and it hovered around ~65 C the whole time at 5.0 all-core! Huge improvement.

I am still at 1.25V IO and SA with vcore at 1.35v

 

[Arctucas]

Good to hear.

Personally, I would tweak the VCore for lowest stable voltage under stress test. Lower .01V and test. Repeat until instability, then set at lowest stable VCore (Adaptive). Once you get that dialed in, then you can start working on LLC settings.

XTU is OK, but if it can pass 30 rounds of LinX 0.9 at 35000 problem size with consistent residuals, I would consider that stable.

Then you can start dialing in RAM timings, with the appropriate testing for stability, of course.

 

[Tatty_Two]

Hi,
Yeah that's crazy 3600c14 1.45v lol
My 3600c16 only needs 1.35v

How hot do your dimms get with 1.45v heck I don't even need that much voltage for 4000c16 1.43v is about it.

I have a temp probe in between the DRAM and it is saying 27 C. So warm but not hot.



No doubt about that. As we can see here Auto is doing crazy high voltages for me here, not a fan. Think I'm going to sell the 4500/18 ram.

Did you try not using XMP but manually inputting the identical timings?

 

[ThrashZone]

Did you try not using XMP but manually inputting the identical timings?

Hi,
I personally never use xmp profiles.
4000mhz is 16-17-16-36 plus some other tuning.

I have tried xmp profile 2 and maximus tweak mode 1 some that asus created to tweak secondaries it was okay.

 

[Tatty_Two]

Hi,
I personally never use xmp profiles.
4000mhz is 16-17-16-36 plus some other tuning.

I have tried xmp profile 2 and maximus tweak mode 1 some that asus created to tweak secondaries it was okay.

Nor do I, that's why I suggested it, sometimes you can just get a below par IMC and using XMP is just another form of overclocking that adds stress to it, plus I always try to get more out of my memory than stock values.

 

[ThrashZone]

Nor do I, that's why I suggested it, sometimes you can just get a below par IMC and using XMP is just another form of overclocking that adds stress to it, plus I always try to get more out of my memory than stock values.

Hi,
Deal with the prior xmp settings was command rate 1N would not work without the xmp 2 and tweak 1 enabled
Asus has really got wild on memory oc on z490 and core oc too.

 

[fusseli]

Yeah I have tried manually entering the XMP values. That is one of my gripes with the Aorus Ultra is that it is not self-ware of its own settings, i.e. when XMP is applied it does not change the displayed DRAM voltage in bios, but booting the system shows that applying XMP did in fact change DRAM voltage to what it's supposed to be. It casts doubt on what the Aorus Ultra bios is or isn't doing to itself.

Manual vcore, vccio, vccsa seems to have solved my temperature problems on the 10700k and 3600/16 seems to have fixed the stability issue of 4500/18. Benchmarks are coming in slightly higher too, but unsure if that's because there was some other config issue with the 4500/18 attempt.

 

[ThrashZone]

Hi,
You'd normally start after clearing cmos and enter all timings and dimm.... voltages manually not just timings.

 

[Tatty_Two]

And often, if XMP was unstable and therefore it's timings were manually input with XMP off a 0.2V voltage increase, in the OP's case to 1.47 might do the job.

 

[fusseli]

I reset cmos about ten times trying to get 4500/18 and XMP timings to run stable.

I also just had the displeasure of updating to F20a bios, which failed and bricked the mobo upon restart, but was able to recover by a re-flash using Qflash+

 

[ThrashZone]

Hi,
Cripes didn't know bios flash was complicated on giga board good recovery though.

 

[fusseli]

Hi,
Cripes didn't know bios flash was complicated on giga board good recovery though.

This is the first bios flash, from windows, that has ever bricked a mobo, in 10+ years of updating bios through windows apps. I've been flashing bios since it was done via floppy disk and we overlocked the multiplier with DIP switches on the mobo LOL

 

[phanbuey]

got my DDR4 3200 CL14 kit up to 4400 C19 stable - z490 is a beast, the 10 series chips IMC is really crazy:

It does love to eat SA and IO voltages though - stability scaling all the way up to 1.44v SA and 1.38 IO on Auto settings from mobo.... going to have to work on getting those down.

 

[Tatty_Two]

Mine will do 4400mhz @ cl18-18-18-36 but they need 1.47v to achieve that which I am not willing to force on them for 24/7, I ran them for most of the time at 4000mhz cl15-16-16-32 on 1.45 but have now reverted to 4133mhz for 24/7 on 17-17-17-34 @1.43v...…………. not bad for an el cheapo kit really.

 

[fusseli]

I'm definitely all better now! All-core 5.0 is now 24/7 stable. I am trying 5.1 all-core with 5.3 2-core now. The voltage overrides is key. Can't trust this Gigabyte Aorus Ultra.

Intel Core i7 10700K @ 5098.78 MHz - CPU-Z VALIDATOR

[mcf0ye] Validated Dump by Anonymous (2021-01-23 23:58:17) - MB: Gigabyte Z490 AORUS ULTRA - RAM: 16384 MB

valid.x86.fr

x

 

[Martin von R]

10600K@4900 MSI MAG Z490 TOMAHAWK
mem
3600MHz cl 17 1.35v 4x8GB @4100cl 20 v 1.38v // IO 1.26v SA 1,27v
cheap HyperX Fury RGB 3600MHZ cl17
when I lower cl, my test gets worse, but letting them run auto, all my tests go to the good side

do not think about my vcore, it is the cpu uses at 5GHZ, just put the cpu down a bit when I had to test my mem

 

[fusseli]

5.1 all-core is stable, 5.3 2C (trying 5.3 4C now)
vcore 1.35v
io, sa 1.25v

 

[GorbazTheDragon]

You'll really want more SA voltage for the memory... 1.35-1.4v and you should be off to the races with 1T command rate at those speeds.

 

[mobiuus]

Put ur cpu ratio at 8...then overclock mem and if u succeed bring cpu ratio back to what u want

 

[GorbazTheDragon]

Put ur cpu ratio at 8...then overclock mem and if u succeed bring cpu ratio back to what u want

Yeah good luck stress testing your RAM with the CPU running at 800MHz

 

[Martin von R]

littel updat whit G.skill 4000 cl 17-17-17-37 1.35v at 4300MHZ cl 16-16-16-35 1.5v iv 1.27v sa 1.35v no xmp ,tweak sub timing
24/7 use

 

[GorbazTheDragon]

Looks pretty normal, 2T makes it pretty easy to hit mid 4000s, the challenge with SR kits is really getting the 1T speeds up. Requires a good board.