8 PACK MEMORY RANGE GROWING: SAY HELLO TO 8 PACK RIPPED EDITION & 32GB KITS!!!

retrop said:
Has anyone experienced problems with ram/cpu not working at certain frequencies from cold?

I've only been playing with my kits since yesterday but settings which seemed pretty solid with the PC warmed up seem to fail to boot when resuming from cold.

I had two pull two sticks last night after the PC went to sleep to get it to boot and this morning even the xmp settings with just the two sticks failed to boot the first few times and I had to back the frequency down to 3,466 to get in to Windows.

Pretty sure if I reboot now I've typed this and things have warmed up 3,600 will be possible again...
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I would have said keeping memory cool is better, cant say i have seen your problem before. The only thing i can think of is maybe your PSU voltage is lower when cold, or even M/B voltages untill warm. Very strange problem to have.
 
Yes, it's very odd. I'm now a few hours in to a flight sim 2020 session back on 3600 15-15-15-32-380-2t and stable. 1 pass of memtest without errors. /shurgs.

Will see what happens next time it sleeps. Maybe it's a bios issue not setting the correct settings on resume.
 
Blackjack Davy said:
Interesting, I'm done as well and I've got almost the same timings and exactly the same results but for 1.392V on my 3600 CL16 kit. I guess these sets really are binned to do higher frequencies @ lower voltage.
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to be honest I just dialled in the voltage at 1.47 as I knew it was a safe voltage. I've never tried to lower the volts, it may do lower.
 
is the calculator working fine with the 5000 cpus ??? i know it says its not on the list but its got simular workings to the 3000 cpus so id hope it would work the same
 
Anyone using an Asus Crosshair check your CPU PLL voltage if its set to Auto.

Asus are pumping a huge and unnecessary voltage increase down that rail when at 3800mhz. From my testing it starts increasing at 3200mhz and continues to scale up as you increase memory speed when at 1:1 with fclk. Worryingly I found on the 2402 bios I was using on my Impact it was shoving 2.212v set to Auto at 3800mhz 1:1 when default for that rail is 1.8v. On that particular bios winding back the PLL voltage caused WHEA errors, so I've now flashed to the 2702 bios. No more WHEA errors at all, however it still puts 2.1v down the PLL rail when set to auto at 3800mhz.

Correction to above - this is actually happening when using a manual cpu multiplier, unless you have your cpu ratio manually set on the Extreme Tweaker menu this will not occur. Bad testing on my behalf, I was loading up my test profile on each bios reset which had my cpu set to a fixed ratio at 45x so as to eliminate cpu speed variances from my memory testing. This is still not good, but likely affects significantly fewer people than I initially feared.

On the 2402 bios winding back the PLL voltage causes WHEA errors, so I've now flashed to the 2702 bios. No more WHEA errors at all, however it still sets 2.1v when the CPU PLL voltage is left on Auto while using a manual cpu multiplier.

Reducing this to 1.8v stock setting manually works fine and is totally stable for me, I've no idea why they are doing this its completely unnecessary. Verified with 3 hours of TestMem5 - no errors in the app and no WHEA errors shown in HWInfo or logged in event viewer.

Couldn't get the 2402 bios stable on the 8gb dimms, but noticed the massive PLL voltage increase at Auto when I was testing adjusting the PLL voltage to try and fix the stability issue and immediately abandoned that bios. A retest on bios 2702 using the 16gb dimms has shown its more stable than 2402 by quite a long way and there is no performance difference, however the PLL issue remains (although reduced by 0.1v).
 
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This is one of the reasons I don't like Asus. I had similar issues with a B450-F board. No matter what I did (even just enabling XMP at 3600) it would stick the soc voltage to 1.2
 
GregI said:
This is one of the reasons I don't like Asus. I had similar issues with a B450-F board. No matter what I did (even just enabling XMP at 3600) it would stick the soc voltage to 1.2
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See edit above - I goofed in my testing of this issue, its not triggered by memory speed but by using a manual cpu multiplier from the Extreme Tweaker menu. Higher manual cpu ratios cause ever higher PLL voltages if CPU PLL is left on Auto.
 
So it sets ~1.8v with auto cpu multiplier?

That would make some sense. It's good to state an issue even if you think your wrong. If your right you find a ridiculous issue and if your wrong no foul. It keeps everyone on their toes.
 
Space Monkey said:
Best yet, had to use 1.5v on the ram to get there but its stable and error free so far. I'm done with 3600 now, want to settle on 3800 with matching FLCK :cool:

Qf74vhC.png
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Thats good... I'm at 217 which I'm pretty pleased with but I'm on the older/other CL16 kit I tried inputting what calculator suggested i.e. all 14-14-14 etc timings and it won't even POST had to clear the CMOS and thats on the Safe settings. Tried lowering tRFC but it actually made it slower. What this all means I have no idea but at least volts are lower 1.394.

test9.png


edit: ok 3666mhz will do 213/203 and 3733mhz will go 209/199 but thats going to need a jollop more voltage as theres errors all over the place not sure how far I want to push that. Either way its better than how I started which was 297/206 lol.
 
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GregI said:
So it sets ~1.8v with auto cpu multiplier?

That would make some sense. It's good to state an issue even if you think your wrong. If your right you find a ridiculous issue and if your wrong no foul. It keeps everyone on their toes.
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Yeah Auto cpu multi sets 1.8v CPU PLL voltage, its only when you go to a manual setting that it increases the PLL volts (I was using 45x for testing). I haven't checked at what point it starts applying extra volts or whether there's scaling (high cpu multi = higher cpu pll volts?), I'm also really not sure what is safe for that voltage. Asus turn it yellow at 1.9v and red at 2v, so for them to set it at 2.1v or higher if the voltage is left at Auto is not great no matter how you look at it.

I've also found my 2 x 8gb F4-4000C15D-16GVK kit is stable now, whether its from changing the bios or not using a fixed multi anymore I'm not sure. I'll have to test that later after work.
 
Would anyone know if this ram is single rank or dual rank please
TEAM GROUP XTREEM "8PACK EDITION" 32GB (4X8GB) DDR4 PC4-32000C18 4000MHZ QUAD CHANNEL KIT - BLACK
 
Dannyb1166 said:
Would anyone know if this ram is single rank or dual rank please
TEAM GROUP XTREEM "8PACK EDITION" 32GB (4X8GB) DDR4 PC4-32000C18 4000MHZ QUAD CHANNEL KIT - BLACK
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These are single rank dimms, but because there are 4 of them, you get dual rank per channel, equivalent to 2x16 dual rank.
 
Thanks for that. Which would be better for a 5900x and a msi tomahawk x570 wifi. Those or these:
Team Group Dark Pro "8Pack Edition", DDR4-3600, CL16 - 32 GB Dual Kit. Buying one or the other on Thursday.
 
The crashes and errors I had with my system have inexplicably gone now, so I started to try dialing in some timings.
I thought 1-2h of Karhu after each adjustment of the main timings was enough.
Before diving into the secondary ones I figured I'd let it run overnight to verify but I woke up to this:
TszsBbl.png

Most settings are still on Bios default, DIMM voltage is at 1.48V the others are displayed about accurately.

Since that Test I have dialed down tRCDWR to "10" and put tRAS/tRC back to "Auto" (58/87).
Ran another 4h test of Karhu - no faults. (Unless I'm completely mistaken that was above 9000% coverage so it should have found faults if there were any. 99.4% isn't 100% but I don't think XCOM rules apply here :) )
Changed tRCDWR back down to 8 again (or so I thought - turns out I quit Bios without saving as my timings are exactly the same as last test) and ran Karhu again - 30 minutes until a fault was found even though the settings did not change one bit.

The Windows error logger is not showing any errors as well.
 
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Kyranar said:
The crashes and errors I had with my system have inexplicably gone now, so I started to try dialing in some timings.
I thought 1-2h of Karhu after each adjustment of the main timings was enough.
Before diving into the secondary ones I figured I'd let it run overnight to verify but I woke up to this:

Most settings are still on Bios default, DIMM voltage is at 1.48V the others are displayed about accurately.

Since that Test I have dialed down tRCDWR to "10" and put tRAS/tRC back to "Auto" (58/87).
Ran another 4h test of Karhu - no faults. (Unless I'm completely mistaken that was above 9000% coverage so it should have found faults if there were any. 99.4% isn't 100% but I don't think XCOM rules apply here :) )
Changed tRCDWR back down to 8 again (or so I thought - turns out I quit Bios without saving as my timings are exactly the same as last test) and ran Karhu again - 30 minutes until a fault was found even though the settings did not change one bit.

The Windows error logger is not showing any errors as well.
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Try setting your vSOC LLC to level 5, it looks like its dropping a bit as zentimings is only reading 1.075v in your screenshot (this will also cause vIOD, vDDP and vDDG to drop under load).

Also are you using a fan over the memory while you run Karhu? Its unrealistic compared to real world load and heats up your memory a lot - you should be actively cooling the sticks while you stress test them if you're around 1.45v or higher. The sticks will want to be staying below 45c to be well into the safe temperature range. B-Die starts erroring around 50c somewhere when overclocked.

If neither of those help I'd put it down to the bios sadly. Asus are having a rough time with their 5000 bioses and memory compatibility. Many people are reporting coming from fully stable memory overclocks on previous bioses and not being able to replicate them on bioses since 2311. I have this issue myself with my G.Skill 4000C15 2 x 8gb kit - it's not stable at known stable settings on any of the Ryzen 5000 crosshair bioses.
 
Thanks for the tips.
LLC is at 3 atm, I think I actually set vSOC to 1.075. Gonna check once the current test is over tomorrow.
Just want to have a good confirmed baseline that passed a 24h test to start from with my subtimings.
Right now I'm trying 14-10-16-12-30-42 which has been without errors for 6h so far.
I have been reading your comments and notes throughout the forums so yes - there is a fan blowing straight at the DIMMs.
 
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