Question XMP issues on Aorus Z390 Pro

[SGX]

I have a 9900k + Gigabyte Aorus Z390 Pro (bios f12L) and memtest is giving errors in test 6 for 2 different pairs of memory I have at XMP settings. (32gb 2x16 Patriot 3200 CL16 and 2x16 G Skill Trident 3600 CL16)

Currently running the G Skill at 3400 CL16 without any errors.The patriot memory ran at 3000 with no errors as well.

Both sets have been tested on an Aorus Pro B450/Ryzen 3300X using XMP and no manual voltage adjustments with no errors which leads me to believe it's not the memory.

https://www.amazon.com/gp/product/B07WTS8T2W/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07N3TXFFX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

CPU is not overclocked. Raising voltage to DIMM voltage to 1.38 and VCCSA/IO up to 1.25 did not help. Mostly just wondering if there's anything else that might be causing this

 

[BonzaiDuck]

It seems as though you were thinking forward in the matter of the vDIMM, VCCIO and VCCSA manual settings, although the vDIMM at 1.35V should be quite sufficient. Anything above the Intel RAM specs for the processor and board is actually an "OC" and may require tweaking the IO and SA voltages. Since you're running both types of RAM at below their own "spec" speeds, I cannot advise reliably on what the problem may be. I'm also not familiar with AMD processors. Is the memory controller in the processor or on the motherboard? I wouldn't have a clue at this point.

What else could it be? I could be wrong. Is there a bad RAM slot in the board? is a memory controller degraded? I can only ask more questions.

As for choosing RAM, I've had Patriot. I don't think they're somehow bad or "less than". I just prefer G.SKILL. I've used enough G.SKILL kits, that I DID have to RMA a pair to them, and they're very reliable with that. But in probabilistic terms, if two different sets of RAM by different makers are not running up to snuff, what does that tell you? I can't guarantee with certainty. Hopefully someone else can intercede here with more insight.

Oh! HEY! Wait-a-minute!!!! I didn't read your post carefully enough! "Tested without error" on an AMD Ryzen system, and you're now having problems with an INTEL board and processor??!!

You had better look more closely at the RAM specs. Some kits are made for AMD systems; some for Intel systems. I've got Z170 motherboards, and wanted 2x16GB = 32GB for them. My Trident Z's only show they were made for the board generation after mine or later, but all with Intel processors. I had to inquire with G.SKILL tech support to assure that my sticks would work properly -- to avoid taking a chance with no printed or tech-support knowledge.

Someone else may know better about this matter of RAM kits touted as "AMD" versus "Intel", but I see it in the RAM descriptions and specs all the time.

Maybe someone else also has more information to offer here. I'm pretty sure I'm not misleading you. Always check the "configurator" at RAM-maker web-sites for mobo compatibility. Sometimes, they test on one board and not another with the same chipset. There are often gaps in configurator information, but you can extrapolate and also look at the QVL lists for the boards.

I've seldom, if ever, seen RAM kits offered with descriptions that favor both platforms. I'm pretty sure of that.

 

[SGX]

The Patriot kit is for sure, and while the G Skill TridentZ Neo kit is newer than Gigabyte's list, I've seen several people on other forums have success with it on Aorus Z390/Z490 boards. I think I'll try the Patriot kit on my Z390 with XMP disabled and manually setting the timings. I've had it testing in the Ryzen system all day at CL14 (it's rated for CL16) and 0 errors, so I'm very sure the memory itself is good.

 

[maluckey1]

The Patriot kit is for sure, and while the G Skill TridentZ Neo kit is newer than Gigabyte's list, I've seen several people on other forums have success with it on Aorus Z390/Z490 boards. I think I'll try the Patriot kit on my Z390 with XMP disabled and manually setting the timings. I've had it testing in the Ryzen system all day at CL14 (it's rated for CL16) and 0 errors, so I'm very sure the memory itself is good.

You're right on the money, doing this without XMP. XMP is generally valid for boards that list that RAM as compatible. I've run non-compatible RAM for years (always overclocked by a good bit) on dozens or setups. Get a "base tune" if you can from someone with a similar setup and you can tune it from there.