Asus Maximus XI Hero and G.Skill F4-3600C16Q-32GTZKK problem

[cniedzi]

Hi,

I've bought new G.Skill Trident Z, DDR4, 32 GB (4x8GB),3600MHz, CL16 (F4-3600C16Q-32GTZKK) and I try to run it with i9-9900K on Asus Maximus XI Hero. This RAM isn't on ASUS QVL but it is on G.Skill QVL.

The i9-9900k is not overclocked (standard Turbo mode active) and XMP I profile is set (3600 MHz, CL16-16-16-36 2T @1.35V). Other BIOS things are set of Auto. I've successfuly passed these tests:
- 8 hrs of ROG RealBench v2.43
- Karhu RAM test 1.1.0.0 - coverage of 12600%.

But, I have a problem. When decompressing 13GB RAR file (Winrar 64bit, 7z, etc.) I got errors stating archive is corrupted (archive consistency confirmed on other computer). Strange thing is the problem is when RAR file is on HDD. If I copy this file to SDD and try to decompress it from SDD everything goes ok. I've tried WinRAR decompressing on brand new HDD -> WinRAR failed (there isn't HDD issue therefore).

So, I've done some additional tests:
- only 2 sticks in A2 and B2 slots (16GB @XMP I) - WinRAR passed
- only another 2 sticks in A1 and B1 slots (16GB @XMP I) - WinRAR passed
- 4 sticks (32GB but @3200 MHz) - WinRAR passed.
- 4 sicks >3200 MHz - WinRAR failed.

I've tried to raise DRAM voltage to 1.4V, but WinRAR failed on HDD.

PS. Generaly small RAR files (ca. 2-3GB) are decompressed normally.

May I asked more experienced ROG users to guide me to achive XMP 3600 MHz. Or maybe I should RMA this RAM.
Please help.

[Silent Scone@ROG]

Hi,

I've bought new G.Skill Trident Z, DDR4, 32 GB (4x8GB),3600MHz, CL16 (F4-3600C16Q-32GTZKK) and I try to run it with i9-9900K on Asus Maximus XI Hero. This RAM isn't on ASUS QVL but it is on G.Skill QVL.

The i9-9900k is not overclocked (standard Turbo mode active) and XMP I profile is set (3600 MHz, CL16-16-16-36 2T @1.35V). Other BIOS things are set of Auto. I've successfuly passed these tests:
- 8 hrs of ROG RealBench v2.43
- Karhu RAM test 1.1.0.0 - coverage of 12600%.

But, I have a problem. When decompressing 13GB RAR file (Winrar 64bit, 7z, etc.) I got errors stating archive is corrupted (archive consistency confirmed on other computer). Strange thing is the problem is when RAR file is on HDD. If I copy this file to SDD and try to decompress it from SDD everything goes ok. I've tried WinRAR decompressing on brand new HDD -> WinRAR failed (there isn't HDD issue therefore).

So, I've done some additional tests:
- only 2 sticks in A2 and B2 slots (16GB @XMP I) - WinRAR passed
- only another 2 sticks in A1 and B1 slots (16GB @XMP I) - WinRAR passed
- 4 sticks (32GB but @3200 MHz) - WinRAR passed.
- 4 sicks >3200 MHz - WinRAR failed.

I've tried to raise DRAM voltage to 1.4V, but WinRAR failed on HDD.

PS. Generaly small RAR files (ca. 2-3GB) are decompressed normally.

May I asked more experienced ROG users to guide me to achive XMP 3600 MHz. Or maybe I should RMA this RAM.
Please help.

With that much Ramtest coverage, the memory shouldn't have any issues with decompression. Have you tried running Karhu again since the issue arose? Sounds like there's possibly some memory training discrepancy.

Set VCCSA and VCCIO voltages to 1.2v - 1.25v.

[cniedzi]

Hi,

The problem exists since I've build my computer (3 weeks ago). This 12600% Karhu RAM test coverage is from last night (test was ran all night, 0 errors).

When in home I will try to set VCCSA and VCCIO voltages to proposed 1.2v - 1.25v and report back.

PS. Today morning I installed BIOS 0602 and tried to decompress 2 times - without any errors. I have to do more tests with 0602.

[cniedzi]

With that much Ramtest coverage, the memory shouldn't have any issues with decompression. Have you tried running Karhu again since the issue arose? Sounds like there's possibly some memory training discrepancy.

Set VCCSA and VCCIO voltages to 1.2v - 1.25v.

I've reverted to BIOS 0602 and WinRAR errors have gone. System is rock solid.
When 0702> WinRAR failed.

Any idea?

[Silent Scone@ROG]

Hard to say sitting from here, but memory rules change from build to build occasionally. If the memory kit is more stable on the previous UEFI, then there's little reason to change unless one is happy to tune things manually.

[cniedzi]

Hard to say sitting from here, but memory rules change from build to build occasionally. If the memory kit is more stable on the previous UEFI, then there's little reason to change unless one is happy to tune things manually.

Can you guide me how to tune my RAM on BIOS 0903 pls?

[cniedzi]

Hi,

On 0602 I am able to be rock solid @3900 MHz, CL 17-18-18-38, VCCIO 1.2V, System Agent 1.2V with my F4-3600C16Q-32GTZKK.
Unfortunately I'm not able to do 4000MHz. I've tried DRAM voltage 1.4, VCCIO 1.4V, System Agent 1.4V, and also tried to relax timings, but RAM test and WinRAR failed
Did I achieve a limit for my F4-3600C16Q-32GTZKK or can I dial something more to achieve stable 4000MHz.

Is someone able to help me to get the same on 0903?
Is any possibility to provide feedback to ASUS BIOS developers? According to forums for many persons 0602 is only way to go.

[Silent Scone@ROG]

If looking to push past the memory vendors validated frequency, with limited experience it's best to work up gradually. Try 3700, and so on. I would also recommend sticking with the UEFI that works best with the memory kit in hand.

Whilst doing so try to keep in mind that:

1) Maximum obtainable frequency is a condition of both the CPU and memory capability.

2) VCCSA and VCCIO are CPU and memory dependent and need to be tuned manually. These signal rails need to be aligned, and often too much voltage can hurt stability just as much as too little.

3) Relaxing sub timings as well as primary may also be needed.

[cniedzi]

If looking to push past the memory vendors validated frequency, with limited experience it's best to work up gradually. Try 3700, and so on. I would also recommend sticking with the UEFI that works best with the memory kit in hand.

Whilst doing so try to keep in mind that:

1) Maximum obtainable frequency is a condition of both the CPU and memory capability.

2) VCCSA and VCCIO are CPU and memory dependent and need to be tuned manually. These signal rails need to be aligned, and often too much voltage can hurt stability just as much as too little.

3) Relaxing sub timings as well as primary may also be needed.

Thx for your answer. As I've mentioned earlier on 0903 I can't be stable @3600MHz (vendor verified freq). So I have to stay with 0602 and wait till any new BIOS will provide stability for me.

[SK8]

Good to see you on this site @cniedzi :] Yes same person from Gskill site lol